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The sewage enters the regulating tank through the grid and then enters the bioreactor through the lift pump. The aeration machine is opened through the PLC controller for oxygenation. The effluent from the bioreactor enters the membrane separation treatment unit through the circulating pump. The concentrated water returns to the regulating tank. The membrane separated water enters the reclaimed water storage tank after chlorination and disinfection (sodium hypochlorite, bleaching powder, chlorine tablets) by the rapid mixing method. The backwash pump uses the treated water in the cleaning tank to backwash the membrane treatment equipment, and the backwash sewage returns to the regulating tank. The opening and closing of the lift pump is controlled by the water level in the bioreactor. The filtration operation and backwashing operation of the membrane unit can be controlled automatically or manually. When the membrane unit needs chemical cleaning, close the water inlet valve and sewage circulating valve, open the chemical cleaning valve and chemical circulating valve, and start the chemical circulation pump for chemical cleaning. Performance characteristics of domestic sewage zero discharge equipment Domestic sewage zero discharge equipment 1. The effluent quality is excellent. Due to the separation effect of membrane, it is unnecessary to set up sedimentation, filtration and other solid-liquid separation equipment. The highly efficient solid-liquid separation separates the suspended substances, colloidal substances and microbial flora lost from the biological unit in the wastewater from the purified water, which can be directly reused without tertiary treatment. It has high water quality safety. 2. Small floor area. The microorganism in the biological treatment unit of the membrane bioreactor maintains high concentration, which greatly improves the volume load. The high efficiency of membrane separation greatly shortens the hydraulic retention time of the treatment unit and reduces the floor area. At the same time, the membrane bioreactor does not need a sedimentation tank and a special filtration workshop because it uses membrane modules, and the system area is only 60% of that of traditional methods. 3. Save operating costs. Due to MBR's high oxygen utilization efficiency and unique intermittent operation mode, the operation time and power consumption of aeration equipment are greatly reduced, and power consumption is saved. At the same time, because the membrane can filter out harmful substances such as bacteria and viruses, it can significantly save the long-term operation cost caused by dosing and disinfection. The membrane bioreactor process does not need to add flocculants to reduce the operation cost. Domestic sewage zero discharge equipment 4. The system has strong impact resistance and wide adaptability. Prevent the loss of various microbial communities, which is conducive to the growth of bacteria (nitrifying bacteria, etc.) with slow growth rate, lengthen the residence time of some macromolecular refractory organics, which is conducive to their decomposition, so that various metabolic processes in the system can be carried out smoothly. 5. The secondary pollution is small. The biological sludge in the membrane bioreactor can achieve dynamic balance during operation, and almost no excess sludge is discharged. 6. High degree of automation, unattended. MBR uses membrane technology, which greatly shortens the process flow and makes the equipment highly integrated and intelligent through advanced computer control technology. So far, it is a highly automated sewage treatment and reuse equipment in China. 7. Modular design, the domestic sewage zero discharge equipment can be freely combined according to the water volume. Due to the high integration, MBR has formed standardized and serialized standard equipment, which can be assembled and installed according to the needs of the project.

The technology of wastewater reuse and treatment equipment in the power plant is mature and innovative, which has a strong anti impact load capacity. At the same time, it achieves the effect of nitrogen and phosphorus removal and uniform aeration. It is known that the average residence time of the contact oxidation process can exceed 6 hours. The power plant wastewater reuse treatment equipment provides excellent sealing performance based on the total output to achieve effective wastewater treatment and environmental protection. Compared with the general sewage treatment technology, the power plant wastewater reuse treatment equipment has several advantages and outstanding characteristics. 1. Due to the porosity of porous ceramic particles, compared with other microcapsules and other forms of carriers, the amount of water involved in the degradation of wastewater microcapsules increases. 2. Because it supports the operation of sewage ceramic filter, the bottom-up air and micro sewage have good gas dispersion and high oxygen delivery efficiency. 3. Sewage sludge is older than ceramic filter, less contact oxidation, less sludge generation, large contact area between water sludge and wastewater, and poor melting characteristics. 4. The filter can filter the wastewater generated in the flocculation and decomposition process, reduce the oxidation process and provide better results. 5. Sewage ceramic filter has high water activity due to stratification along the flow direction of the packed bed, so it has good stability, low temperature operation and impact load. 6. Low cost power plant wastewater reuse and treatment equipment, low cost power plant wastewater reuse and treatment equipment, oxidation decomposition, secondary sedimentation process can be omitted to reduce construction costs. 7. The micro high discharge concentration power plant wastewater reuse treatment equipment will treat the filter shaped filler particles, the fine water will survive and grow the fine water concentration, and the increase of the processor to replace the biofilm will provide a good environment and normal and stable operation.

Buried sewage treatment equipment is a kind of equipment with high decontamination efficiency, mainly focusing on biofilm purification, giving full play to the characteristics of anaerobic biofilter, contact oxidation bed and other biofilm reactors, such as high biological density, strong pollution resistance, low power consumption, stable operation and convenient maintenance Buried sewage treatment equipment is a kind of equipment with high decontamination efficiency, mainly focusing on biofilm purification, giving full play to the characteristics of anaerobic biofilter, contact oxidation bed and other biofilm reactors, such as high biological density, strong pollution resistance, low power consumption, stable operation and convenient maintenance 1. It is buried below the surface and does not affect the equipment, so it does not occupy space. 2. The two-stage biological contact oxidation process adopts the plug flow biological contact oxidation process, and its treatment effect is better than that of the completely mixed biological contact oxidation tank or the two-stage fully mixed biological contact oxidation tank in series. It is smaller than the activated sludge tank, with strong adaptability to water quality, good impact load resistance, stable effluent quality and no sludge bulking. A new type of elastic solid filler is used in the tank, which has a large specific surface area. Microbes are easy to hang and remove the membrane. Under the same organic load conditions, the organic matter removal rate is high, and the oxygen solubility in the air in water can be improved. 3. The biochemical tank adopts biological contact oxidation method, which is convenient for filling and produces less sludge. It is basically cleaned once every three months. 4. The deodorization method of the buried domestic sewage treatment equipment is conventional air exhaust and soil deodorization measures. 5. Intelligent equipment is simple and convenient. Applicable scope of buried sewage treatment equipment 1. Hotels, restaurants, sanatoriums and hospitals; 2. Residential quarters, villages and market towns; 3. Stations, airports, seaports and docks and ships; 4. Factories, mines, tourist spots and scenic spots; 5. Various industrial organic wastewater similar to domestic sewage.

With the improvement of people's living standards, the tertiary industry has also ushered in a new spring. Among them, the demand of the catering industry is expanding, which has indirectly led to the increase of wastewater in the catering industry. The quality and quantity of catering wastewater are greatly affected by people's living and eating habits. Sometimes, the content of various pollutants in catering wastewater in some places is more than ten times that in ordinary catering wastewater. In addition, the limitation of space brings more severe difficulties to the treatment of such wastewater. Catering wastewater has complex components, low PH, high SS, high turbidity and high organic content, mainly including food fiber, starch, fat, animal and vegetable oils, various condiments, detergents and proteins. According to the detection of catering wastewater in some areas, the COD in catering wastewater is 300-2633mg/L, SS is 300-400mg/L, NH4+- N is 6-50mg/L, BOD5 is 300-900mg/L, pH is 5.81-6.55, TN is 3.4-45mg/L, and oil content is 6.7-20mg/L. So, how does the catering industry generally purify sewage? What are the technical features of sewage evolution equipment? Restaurant sewage treatment equipment Because of the particularity of the water quality of catering wastewater, the treatment method of catering wastewater is generally divided into two stages: pretreatment and treatment. In practical application, many technologies are often used together. The main goal of treatment is also to remove COD, suspended solids, animal and vegetable oils from catering wastewater. Pretreatment is the basis of the treatment process, and treatment is the deepening of the pretreatment process, both of which are indispensable. 1. Pretreatment technology of restaurant wastewater Catering wastewater contains a large amount of suspended substances and animal and vegetable oils, which can block dissolved oxygen in the atmosphere from entering the water body. During the treatment process, oils can also wrap around microorganisms, causing them to die of hypoxia, affecting the treatment effect. A large number of suspended substances are mostly food scraps with large particles, which are difficult to be used by microorganisms. In addition, it is easy to cause blockage of treatment facilities during the treatment process, which brings difficulties to the treatment. Therefore, the pretreatment of restaurant wastewater has become a very important link and means in the treatment process. 2. Specific processing flow Firstly, the restaurant wastewater directly recovered from restaurants and restaurants shall be mechanically removed to remove large impurities such as bones, vegetable leaves and even cloth strips for washing, as well as impurities such as starch, protein, sugars, detergents and colloidal substances. Then oil and water are separated from the liquid part. For the oily part, the waste oil is obtained by acid precipitation and water washing, and the acid dosage in the acid precipitation process is better to control the pH value between 2-3. The water after oil-water separation is mixed with the water for washing, and then the water quality and quantity are adjusted through the regulating tank. After that, the water is pumped to the coagulation floatation tank to remove most SS, oil and some organics, and then biochemical treatment is carried out. Advantages of catering sewage treatment equipment 1. The treatment process is mainly biological treatment process, combined with adsorption filtration, bacteria elimination and other processes, with high treatment capacity, wide application range and good effluent effect; 2. The integrated structure is adopted. The whole set of equipment can be buried below the surface, and the surface can be used for greening or other purposes, without building houses and heating insulation; It can also be set indoors; Low operation noise, no impact on the surrounding environment; 3. High degree of purification, less sludge production; The deodorization method is conventional high altitude discharge, and soil deodorization measures are provided to avoid odor generation; 4. The entire equipment processing system is equipped with a fully automatic control system and an equipment fault alarm system, which are safe and reliable in operation and easy to operate. No special person is required to be on duty, and only timely equipment maintenance and repair are required.

1. What are the main measures to reduce acid and alkali consumption? (1) Ensure the inlet water quality; (2) Ensure the regeneration quality and prolong the cycle of water production; (3) Ensure the quality and purity of regeneration solution, and strictly control the regeneration operation procedures; (4) Ensure safe, reliable and normal operation of equipment. 2. Basic concept of coagulation? As the colloidal particles in the water are negatively charged, they repel each other. At the same time, they constantly do "Brownian movement" in the water, which is extremely stable and not easy to sink. When an appropriate amount of coagulant is added, the tiny colloidal particles in the water can be destabilized, resulting in the adsorption bridging effect, and the flocculent will sink rapidly. This process is called coagulation. 3. What is the purpose of using coagulant aids? (1) Improve the floc structure to make its particles grow up, strong and heavy; (2) Adjust the PH value and alkalinity of the treated water to achieve the best coagulation conditions and improve the coagulation effect; Coagulant aids themselves do not play a role in coagulation, but can promote the coagulation process of impurities in water. 4. What are the main factors affecting the coagulation effect? (1) PH of water: if PAC is added to hydrolyze to produce Al (OH) 3 colloid, the dissolution is minimum when PH is 6.5-7.5, and the coagulation effect is also good; (2) Alkalinity of water: when the alkalinity is insufficient, the coagulant continuously generates H+during hydrolysis, which reduces the PH value and the coagulation effect; (3) Water temperature: when the temperature is low, the viscosity of water is large, the hydrolysis speed is slow, the floccule formation is slow, and the structure is loose, and the particles are small and not easy to precipitate; (4) Composition of impurities in water: the nature and concentration of impurities have a great impact on the coagulation effect. 5. Purpose of water treatment in boiler? (1) Prevent water and steam of boiler body and auxiliary system from accumulating sediment and corrosion during operation. Improve the heat transfer and conduction efficiency of the boiler. (2) Ensure steam quality, prevent scaling and corrosion of turbine components, reduce boiler blowdown loss and improve economic benefits under the condition of ensuring water quality.

The sewage enters the regulating tank through the grid and then enters the bioreactor through the lift pump. The aeration machine is opened through the PLC controller for oxygenation. The effluent from the bioreactor enters the membrane separation treatment unit through the circulating pump. The concentrated water returns to the regulating tank. The membrane separated water enters the reclaimed water storage tank after chlorination and disinfection (sodium hypochlorite, bleaching powder, chlorine tablets) by the rapid mixing method. The backwash pump uses the treated water in the cleaning tank to backwash the membrane treatment equipment, and the backwash sewage returns to the regulating tank. The opening and closing of the lift pump is controlled by the water level in the bioreactor. The filtration operation and backwashing operation of the membrane unit can be controlled automatically or manually. When the membrane unit needs chemical cleaning, close the water inlet valve and sewage circulating valve, open the chemical cleaning valve and chemical circulating valve, and start the chemical circulation pump for chemical cleaning. Performance characteristics of domestic sewage treatment equipment: 1. The effluent quality is excellent. Due to the separation effect of membrane, it is unnecessary to set up sedimentation, filtration and other solid-liquid separation equipment. The highly efficient solid-liquid separation separates the suspended substances, colloidal substances and microbial flora lost from the biological unit in the wastewater from the purified water, which can be directly reused without tertiary treatment. It has high water quality safety. 2. Small floor area. The microorganism in the biological treatment unit of the membrane bioreactor maintains high concentration, which greatly improves the volume load. The high efficiency of membrane separation greatly shortens the hydraulic retention time of the treatment unit and reduces the floor area. At the same time, the membrane bioreactor does not need a sedimentation tank and a special filtration workshop because it uses membrane modules, and the system area is only 60% of that of traditional methods. 3. Save operating costs. Due to MBR's high oxygen utilization efficiency and unique intermittent operation mode, the operation time and power consumption of aeration equipment are greatly reduced, and power consumption is saved. At the same time, because the membrane can filter out harmful substances such as bacteria and viruses, it can significantly save the long-term operation cost caused by dosing and disinfection. The membrane bioreactor process does not need to add flocculants to reduce the operation cost. 4. The system has strong impact resistance and wide adaptability. Prevent the loss of various microbial communities, which is conducive to the growth of bacteria (nitrifying bacteria, etc.) with slow growth rate, lengthen the residence time of some macromolecular refractory organics, which is conducive to their decomposition, so that various metabolic processes in the system can be carried out smoothly. 5. The secondary pollution is small. The degree of sewage purification is relatively high, and the sewage discharged is clean water. 6. High degree of automation, unattended, fully intelligent equipment. 7. Modular design, the domestic sewage zero discharge equipment can be freely combined according to the water volume. Due to the high integration, MBR has formed standardized and serialized standard equipment, which can be assembled and installed according to the needs of the project.

The ro reverse osmosis membrane on the industrial pure water equipment needs to be cleaned after a period of use. If it does not affect the water yield and conductivity of the produced water, thus affecting the water quality, it is necessary to check whether the conductivity displayed on the electric cabinet has decreased after the equipment has been used for a period of time. If it has decreased or the water yield has decreased, the ro reverse osmosis needs to be cleaned. The methods for cleaning the ro membrane of industrial pure water equipment are as follows: When using reverse osmosis, if the installed water yield decreases by 10%, if the salt penetration rate doubles, or the differential pressure drop doubles, it indicates that the reverse osmosis needs to be cleaned (but it should be noted that the drop in temperature will also cause the water yield to decrease, which is a normal phenomenon. In addition to periodic cleaning, it is better to run at low pressure for several minutes each time you start up to remove the concentrated water in the reverse osmosis device and drain it, instead of entering the next level unit. 1. Physical cleaning method The simplest physical cleaning method is to wash the Dow membrane with water at low pressure and high flow rate for 30 minutes, which can restore the water permeability of the membrane to a certain extent, but the water permeability still decreases after a long time. The membrane surface can also be washed with water and air mixed fluid at low pressure for 15 minutes. This method is effective for cleaning the membrane polluted by organic substances at the initial stage. 2. Chemical cleaning method ① Citric acid solution: under high pressure or low pressure, use 1% - 2% citric acid aqueous solution to wash the membrane continuously or circularly. This method has a good cleaning effect on Fe (OH) 3 pollution. ② Ammonium citrate solution: add ammonia water into the solution of citric acid or prepare a solution with different PH values. You can also add HCL into the solution of ammonium citrate and adjust the PH value to 2-2.5. For example, in 190L deionized water, 277g of ammonium citrate is dissolved and the PH value of the solution is adjusted to 2.5 with HCL. This solution can be circularly cleaned in the membrane system for 6 hours. If the solution is heated to 35-40 ℃, the cleaning effect is better, The solution has good cleaning effect on inorganic pollution, but the cleaning time is long. ③ Enzymatic detergent is used to treat the membrane, which is particularly effective for organic pollution, especially for protein, oil and other organic pollutants. If the cleaning effect is better at 50 ℃ - 60 ℃, generally after 10 days or half a month of operation, 1% enzyme added detergent is used to clean the membrane at low pressure. Because the concentration of enzyme added detergent is low, the immersion time is required to be longer. ④ Concentrated salt water, it is effective to clean the membrane that severely punishes the limb pollution with concentrated salt water. This is because the high concentration salt water can weaken the interaction between colloids and promote the formation of micelles. ⑤ Water soluble emulsion, which is very effective for cleaning the membrane polluted by oil and iron oxide, generally cleaning for 30-6 minutes. ⑥ Hydrogen peroxide solution, for example, dilute 0.5L and 30% H2O2 with 12L deionized water, and then clean the membrane surface. This method is particularly effective for organic pollution. ⑦ For sodium hypochlorite and formaldehyde solution, different treatment measures should be taken according to different membranes for bacterial pollution. Aromatic polyamide membranes can be cleaned with 1% (weight) formaldehyde solution. At the same time, it is necessary to regularly analyze the residual chlorine in reverse osmosis concentrated water to keep 0.2-0.5mg/l to prevent bacterial proliferation. ⑧ Oxalic acid and EDTA solution. For the metal oxide precipitation on the membrane, it is better to clean it with oxalic acid and EDTA solution.

The customized 10 ton pure water equipment was successfully delivered today. The company's existing production equipment: wastewater treatment equipment, reclaimed water reuse equipment, ultra pure water equipment, pure water equipment, evaporation equipment, etc; R & D projects: treatment of waste leachate, seawater desalination, application and development of energy recovery device, remote data acquisition of sewage treatment equipment and guidance tips for on-site practical application. Orders Are Welcome!

In demineralized water treatment equipment, reverse osmosis membrane is the most advanced and economical technology at present. In the daily operation of reverse osmosis equipment, it is often found that the desalination rate of reverse osmosis pure water equipment drops too fast. What are the reasons for the rapid decline of desalination rate of pure water equipment? 1. Desalination rate decreases due to high pressure difference The increase of pressure difference is often accompanied by the rapid decline of desalination rate. Under normal flow rate, the rise of differential pressure is usually caused by impurities, pollutants and scale entering the partition of the water flow channel of the membrane element, which leads to the decline of water production flow. When the set feedwater flow is exceeded, excessive differential pressure will also occur. When the feedwater pressure rises too fast during startup, the differential pressure of water hammer will be large. If the membrane has been polluted, especially microbial pollution, the differential pressure will also increase. The pressure difference between feed water and concentrated water represents the hydraulic resistance, which is related to the flow rate and temperature of feed water. It is necessary to maintain a certain flow rate of permeate and concentrated water. appear The possibility of high pressure difference includes scale, microbial pollution, scale inhibitor precipitation, filter medium leakage of the filter, and water supply/concentrated water seal damage. 2. Online chemical cleaning is unreasonable Ultrapure water equipment is inevitably polluted in operation. Pretreatment and addition of various agents can only minimize the possibility of RO being polluted, but cannot completely eliminate it. Therefore, it is necessary to fully demonstrate and confirm what kind of pollutant is in the long-term reverse osmosis system after a certain period of operation. According to the characteristics of polyamide membrane, appropriate cleaning agent can be selected according to the corresponding dirt: a. Hydrochloric acid (36% - 38%), prepared into 0.12% dilute solution to remove metal oxides. b. Sodium hydroxide, prepared into a 0.1% dilute solution to remove silica, microbial membrane, organic matter, etc., with a pH of about 12. The function is to peel off the hydrolytic damage of the organic microbial mucosa. For the silica colloidal scale, the sodium silicate formed is soluble, so as to remove the scale. c. Tetrasodium ethylenediaminetetraacetate, as a chelating agent, is widely used in industrial cleaning. The 1% aqueous solution pH10.5-11.5 is added with a concentration of 0.5% - 1%. d. Sodium dodecyl sulfonate, an anionic surfactant, aims to disperse organic compounds in the solution, which can reduce the surface tension of the solution and cause positive adsorption, so that the concentration of solute molecules on the solution surface is greater than that in the solution. Sodium dodecyl sulfonate is the most important surfactant for reverse osmosis cleaning, with the concentration of 0.025%. e. Formaldehyde, formaldehyde has a strong killing effect on bacteria, fungi, viruses, spores and protozoa, with the addition concentration of 0.5% - 35. 3. Poor control of residual chlorine As a bactericide, sodium hypochlorite is widely used in the pretreatment of pure water equipment. In the reverse osmosis system, in order to prevent microbial pollution of reverse osmosis, the reverse osmosis inlet water shall be chlorinated. Use a colorimeter to measure the residual chlorine, and control the mass concentration of residual chlorine at the inlet of the sand filter to be 0.5mg/L, not less than 0.3mg/L, and less than 0.1mg/L at the cartridge filter before reverse osmosis. The outstanding problem of polyamide film is to prevent it from being oxidized. The residual chlorine value of influent water and strong oxidation have adverse effects on it, which must be strictly controlled. Therefore, it is extremely important to regularly detect the residual chlorine value of the reverse osmosis inlet water.

At present, the common ozone generators in swimming pool equipment can be divided into the following three categories according to the common raw materials for ozone production: 1. Gas legal ozone: Of course, the air filters dry ozone generator with low concentration ozone gas. The ozone concentration prepared by this method is generally 20mg/l-30mg/l. Not only the gas consumption is large, but also the power consumption is high. 2. CO2 legal ozone can be divided into two types: 1. Prepare ozone with sufficient oxygen: of course, drying - oxygen separation - high concentration ozone generator - ozonation of CO2. This kind of method has been developed to use high-voltage power supply and carbon molecular sieve pressure swing adsorption medical oxygen generator (that is, to absorb nitrogen in the gas and increase the oxygen content in the gas to 85% - 95%). Ensure that the prepared ozone concentration exceeds 80mg/l, the ozone production can be adjusted, and the whole process is controlled by microcomputer Cpu synchronization control. The new generation of CO2 ozone generator that can automatically shut down any abnormal change found at any stage to ensure safe operation is suitable for the disinfection and sterilization of swimming pool water and the preparation of ozone by air pressure method. The cost of ozone preparation is much less than that of oxygen preparation. This kind of air pressure ozone preparation machine and equipment, the ozone generator works stably, and uses medium and high voltage power supply to improve the safety factor and credibility of the ozone generator, thus preventing the risk of fire accidents due to the high charging and discharging working voltage of the DC switching power supply. In addition, at the operation level, PLC is the key to operation, which has the function of remote control, can maintain the linkage with circulating pump and booster pump, and has various interlocking functions such as over-current protection, cooling circulating water over temperature protection, transformer over temperature protection, and server cabinet start maintenance. It is a relatively new ozone preparation process. The machine and equipment are currently manufactured in China and have been widely used to disinfect the water in swimming pools. 2. Preparation of ozone from oxygen: Liquid oxygen high concentration ozone generator ozonation of co2. The ozone concentration prepared by this method can exceed 80mg/l, but there must be a liquid oxygen bottle warehouse on the spot. Although the price of liquid oxygen is high, the use of liquid oxygen is small. But the discomfort is sterilized by ozone in the natatorium. 3. Ozone ultraviolet light combined ozone generator generator set. In the same machine and equipment, there are ozone and ultraviolet ultrasonic generators, which can have two-way effects. That is, not only can the pool water and ozone be fully mixed, but also can be oxidized, disinfected and sterilized in the touch room. Before the water flows out of the touch room, it can be converted into oxygen according to the catalytic oxidation effect of ultraviolet light, so as to remove ozone. And touch the unnecessary ozone in the room. The rear seats are dissolved into air by waste gas. In the software of pool water disinfection and sterilization system, there is no need to set activated carbon filtering device to remove the remaining ozone in the disinfected solution, which has a great coordination ability and saves the total area of the main machine room and capital construction costs.

Conductivity is an important indicator to reflect the water production and cleanliness of purified water equipment, once the conductivity index is not within the standard value, the water quality is bound to be a problem, today we will first understand the purified water conductivity is suddenly high and low is how? The lower the conductivity of the purified water, the higher the purity of the water. The high and low conductivity of purified water will seriously affect the purified water standard and affect the productive efficiency. Therefore, we must solve the problem in time according to the actual situation, to avoid greater losses caused by unqualified water quality. 1. In general, the water treatment system is consistent with the initial state, with no change and increased conductivity. At this time, the reason for the high conductivity is that the aging of the reverse osmosis membrane components leads to the decline of the desalination rate. The correct treatment method is to replace the reverse osmosis membrane of the reverse osmosis host, and usually the replacement frequency (cycle) is 2-3 years once. 2. Other information: A. The conductivity of normal equipment operation increases suddenly, and the displacement increases. This is due to the sharp increase in permeability leakage of the reverse osmosis membrane assembly, it is recommended to replace the sealing ring. The specific method is to test the water quality of each membrane component, and to find out the leakage of the part of the replacement. In b. When the equipment is started, the secondary conductance rise is difficult to come down or the drop time is too long. This situation is generally common in double-stage reverse osmosis, in the middle of the first and second stage generally add sodium hydroxide to adjust the amount of carbon dioxide removal in water measures, the amount of sodium hydroxide addition is related to the conductivity, it is recommended to adjust the amount of addition. c. The water production of the equipment does not change after a period of time, the conductivity increases and the displacement increases. It shows that the membrane is degraded by the oxidative medium, and the conductivity increases, and the membrane components need to be replaced. d. The effect of sand carbon purification and filtration of equipment pretreatment is reduced or ineffective No regular and timely backwashing (water intake conductivity will be relatively higher). The security filter element of e and RO water inlet is dirty and blocked, not replaced in time, and the pressure difference is large. f, the raw water quality is unstable, the raw water quality changes, the raw water conductance is high water production is naturally affected. g. High water temperature and inlet PH value during water preparation are not within the reasonable control range. h, the higher the purity of water, of course, the stronger the ability to dissolve substances, contact with air, such as carbon dioxide, oxygen, ammonia is easy to quickly dissolve with it, so the conductivity rate increases quickly. 3. In addition, purified water equipment is a large system and other factors. It is suggested that problems should use daily operation records, analyze problems and solve problems as soon as possible. The above several are the most common causes of unqualified purified water conductivity. In addition, the conductivity standard is not equal to the water quality standard of pharmaceutical purified water. The water quality of pharmaceutical purified water also includes other items such as total organic carbon, heavy metals, microorganisms, etc. When the purified water electrical conductivity is suddenly high and low situation, we must find out the reason to take the corresponding measures according to the actual situation, to remove the problem. Avoid greater losses due to substandard water quality.

Reverse osmosis water treatment equipment is divided into two parts, one part is the pretreatment of debugging, part is reverse osmosis host debugging part, and reverse wash pretreatment is mainly quartz sand, activated carbon, the tiny sand carbon and impurities rinse, control the amount of water in water, reverse osmosis host debugging mainly adjust the water, the water flow and pressure. It can be summarized as follows: 1. The water inlet of the device is analyzed and tested, and the results show that the water inlet meets the requirements before the device can be adjusted. 2. Adjust the pressure control system of the high pressure pump. 3. Check whether the connection between all pipelines of the device is perfect, whether the pressure gauge is complete, whether the low pressure pipeline is connected closely, whether there is a shortage. 4, open the pressure gauge switch and the general inlet valve, concentrated water discharge valve, water discharge valve. 5. Start the pretreatment equipment and adjust the water supply to be greater than the total water intake of the device. 6, the quartz sand, activated carbon filter for backwashing and cleaning, until the water is clear. 7. Start the high pressure pump and slowly open the general inlet valve of the device. The total inlet pressure of the control device is less than 0.5mpa, rinse for 5 minutes, and check whether the high and low pressure pipelines and instruments are normal. 8. Adjust the inlet valve and concentrated water discharge valve to make the inlet pressure reach 1.0 ~ 1.4mpa. 9. Test the water conductivity of the product, open the water outlet valve and close the water outlet valve when meeting the requirements. 10, RO device debugging are manual single-step operation, normal operation, can be switched to the automatic state, by the online instrument and PLC automatic control operation. 11. Start the regeneration system to see whether the regeneration system is working properly.

Membrane bioreactor technology is a new process combining biological treatment technology and membrane separation technology, which replaces the secondary sedimentation tank in the traditional process. It can efficiently separate solid and liquid, and obtain the stable reclaimed water for direct use. It can also maintain a high concentration of microorganisms in the biological pool, less residual sludge in the process, very effective removal of ammonia nitrogen, suspended solids and turbidity in the effluent are close to zero, bacteria and viruses in the effluent are largely removed, low energy consumption, small footprint. The application and popularization of membrane bioreactor technology are limited due to the shortcomings of low flux, short life, easy plugging, difficult cleaning and poor corrosion resistance of organic membrane components. The inorganic membrane has the characteristics of large flux, long life, easy cleaning and corrosion resistance. It can be applied to the surface treatment and other oily wastewater industry. It can not only reduce the cleaning cycle, improve the service life of the membrane, but also improve the water quality, which provides an effective guarantee for the stable operation of the late water reuse equipment.

As the urban water pollution is becoming more and more serious, many enterprises began to use industrial food ultra pure water equipment is to ensure that the quality of water can meet the processing requirements, so do you know what are the characteristics of industrial food ultra pure water equipment, let us understand it together. 1. Less cost input and good effluent quality. 2. Industrial food ultra pure water equipment using multi-media filter, activated carbon filter and security filter as pretreatment, can effectively remove the raw water solids, colloids, sediment, odor and other impurities, treated water can meet the requirements of reverse osmosis water, the reverse osmosis device to remove bacteria, soluble salts, etc., and then use ion exchange bed for further treatment, make the output of water resistivity to 15~18.2 MΩ. cm. 3. With both manual and automatic modes. When setting the manual mode, the system can be installed, adjusted and repaired. Automatic mode is realized by the programmable controller, combined with the multi-point multiple-channel water level sensor, the dynamic pressure controller combination to monitor the operation of each component. 4. The system adopts advanced process, and the key components are all made from internationally renowned brands. Computing and equipment selection are conducted in strict accordance with the design to ensure the stable and safe operation of the reverse osmosis membrane system for a long time. 5. A small area, high water utilization rate, will not consume a lot of acid and alkali, and the desalination rate can reach more than 99%. The system disadvantage is that the investment is relatively large.

Recently, Kunshan customers of a set of Ultra-pure Water Equipment successfully delivered! The company provides customers with fast and high-quality services with complete production and manufacturing plants, perfect design, excellent construction quality and perfect after-sales service quality. Welcome to order our Water treatment equipment, Ultrapure water equipment, Wastewater Equipment and so on.

Recently, Chongqing customers of a set of 6 tons of Pure Water Equipment successfully delivered! The company provides customers with fast and high-quality services with complete production and manufacturing plants, perfect design, excellent construction quality and perfect after-sales service quality. Welcome to order our Water treatment equipment, Ultrapure water equipment, Wastewater Equipment and so on.

With the development of society, the pollution of water quality is becoming more and more serious, and people pay more and more attention to the quality of water in industrial production. There are many types of industrial water purification equipment on the market today, which are applied to all parts of life. The cities where we live, the places we work, the communities and public places where we live, and large factories all use industrial water purification equipment. Industrial water purification equipment has become the key to our problem solving, so equipment maintenance is the top priority. So let's analyze what affects the management of industrial water purification equipment. Industrial purified water treatment equipment 1. Not paying attention to equipment management. Most industrial water purification equipment companies do not pay enough attention to equipment management, which is mainly manifested in that on the one hand, they have not established a professional equipment management organization and an operation mechanism for daily management and maintenance, and equipment management and maintenance cannot be carried out well in accordance with the system. On the other hand, the lack of equipment and introduction of professional equipment management and technical personnel cannot meet the needs of daily management and maintenance of equipment, so that the equipment management and maintenance of industrial water purification equipment cannot be carried out well, which affects the treatment of industrial water purification. normal operation of the device. Industrial purified water treatment equipment 2. Lack of necessary equipment management and maintenance procedures and spare parts. Strictly implement the routine and regular maintenance of equipment, equipment maintenance, and equipment planned repair work procedures, which is not only the routine planning work of industrial water purification equipment, but also a better way to ensure the normal operation of the equipment. It can not only closely monitor the operation of the equipment. Tracking and timely discovery of failure problems can also eliminate hidden dangers of equipment failures in the bud. The above is an introduction to the factors that affect the management of industrial water purification equipment. Industrial purification water treatment equipment management plays an extremely important role in our use of equipment, and we analyze the reasons to better understand prevention.

During the operation of the industrial circulating water system, the circulating water is continuously concentrated due to water evaporation and wind loss. The salt contained in the industrial circulating water exceeds the standard, the anions and cations increase, and the pH value changes significantly, which causes the water quality to deteriorate. The temperature, pH and nutrients of the circulating water are conducive to the reproduction of microorganisms, and sufficient sunlight on the cooling tower is an ideal place for algae growth. However, scale control, corrosion control, microbial control, etc., inevitably require circulating water treatment, and the main problems that occur during the operation of circulating water: (1) Scale: As the circulating water evaporates continuously during the cooling process, the salt concentration in the water is continuously increased, and the solubility of some salts is exceeded and precipitated. The common ones are calcium carbonate, calcium, magnesium silicate and other scales. The texture of scale is relatively dense, which greatly reduces the heat transfer efficiency. A scale thickness of 0.6 mm reduces the heat transfer coefficient by 20%. (2) Dirt: Dirt is mainly composed of organic matter in the water, microbial colonies and secretions, silt, dust, etc. The texture of the dirt is soft, which not only reduces the heat transfer efficiency but also causes the service life of the cycle equipment under the corrosion (3) Corrosion: The corrosion of circulating water to heat exchange equipment is mainly electrochemical corrosion, which is caused by equipment manufacturing defects, sufficient oxygen in the water, corrosive ions (Cl-, Fe2+, Cu2+) in the water, and mucus secreted by microorganisms. The generated dirt and other factors have serious consequences for corrosion, even if the heat exchanger and water pipeline equipment are not controlled in a very short time.

The EDI device is applied after the reverse osmosis system to replace the traditional mixed ion exchange technology (MB-DI) to produce stable deionized water. Compared with mixed ion exchange technology, EDI technology has the following advantages: ①Stable water quality; ②Easy to realize automatic control; ③No shutdown due to regeneration; ④No chemical regeneration required; ⑤Low operating cost; ⑥Small floor space; ⑦No sewage discharge.

The food water reuse equipment has mature technology that can ensure that it meets the corresponding design standards, can reduce project costs, save operating costs, and is convenient to maintain, convenient in technology, reasonable in layout, and beautifully coordinated. So, what are the specific advantages of food water reuse equipment technology? Technical advantages of food water reuse equipment: 1. Using special technology, the whole system has the characteristics of high efficiency, water saving, environmental protection and electricity saving The process of combining high-density clarifiers, multi-media filters, ultrafiltration system devices, softening system devices, and curved micro-conductive membrane separation system devices is adopted to re-use the concentrated water produced in the system and improve the utilization rate of water. Energy recovery of concentrated water reduces system energy consumption. 2. Unique special membrane for water reuse, suitable for various water quality, making the system more stable The system adopts a wide flow channel, anti-pollution special membrane for reuse of reclaimed water, which has the advantages of low pressure difference, easy cleaning, wide application range, long operating cycle, etc., and the system is equipped with a chemical cleaning system to ensure long-term stable operation of the equipment. 3. The recovery rate is as high as 90%~95%, and the discharge of concentrated water is small 4. Superior performance A comprehensive online or offline monitoring system can be set up between each module of the system, and equipped with a multi-functional POD online detector, which can reflect the operation of the system at any time and ensure the quality of the effluent. 5. Highly automated design, simple operation, lower labor costs