Weifang Longyu Environmental Protection Technology Co., Ltd

Washing sewage treatment plant - news

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1、 Washing sewage treatment device - news sewage component The washing sewage of linen, such as linen sheets, quilt covers, towels, carpets, etc., is mainly composed of soap, grease, synthetic detergent, detergent, and a small amount of coliform bacteria, which are toxic and harmful, and has become an important source of water pollution. The concentration of organic matter in the washing sewage varies greatly, the turbidity is high, and the BOD/COD ratio is about 0.45, which is biochemical. The effective ingredients of detergent are surfactant and detergent, in addition, there are many auxiliary ingredients such as bleach. Surfactants can be divided into cationic, anionic and non-ionic types according to their molecular configurations and group types. The latter two are widely used in industry and life. 2、 Washing sewage treatment device - news discharge There are two main types of wastewater discharge from washing industry: one is that the wastewater from washing plants in cities and towns is discharged to urban sewage treatment plants (municipal pipe network sewers), and the other is that suburban or rural areas are directly discharged to rivers and land. In the absence of low-cost use of underground well water, it is suggested that treatment to reuse can greatly save the operating costs of enterprises while meeting environmental requirements. According to different regions and receiving water bodies, the relevant discharge shall be given priority and then the Impact Assessment Report required by the local environmental protection department shall be met. For micro enterprises without environmental impact assessment report, the discharge of washing wastewater shall comply with the following: Grade III and Grade B in Table 1 of Table 4 of Integrated Wastewater Discharge (GB8978-1996), Water Quality of Sewage in Cities and Towns (CJ343-2010), if cloth washing is included, the discharge shall be at the same time as the pre-treatment in Table 2 of Institutional Water Pollutants Discharge (GB18466-2005). 3、 Washing sewage treatment plant news processing technology The current situation of China's washing industry is chaotic. In order to have advantages in price, washing and washing speed, many enterprises use detergents that do not meet the relevant requirements. A large number of bleaches even contain strong acids and alkalis. In order to save costs, some washing plants use low-cost chemical raw materials to configure their own detergents, Some configurations are not properly proportioned, and may remain if not properly watered, which is harmful to human skin. Due to the different processes and detergents of each laundry, the water quality components are also different, which increases the difficulty of wastewater treatment. For example, the use of high specification treatment process can meet the standard of treatment, but it has greatly increased the cost of building a sewage treatment plant. It is recommended to check the water quality first, and customize the sewage treatment process according to the actual water quality and quantity. After the sewage is collected through the collecting pipeline, it flows into the regulating pool automatically after removing the impurities such as floating matter and suspended matter through the grid. The regulating tank is equipped with two primary submersible sewage pumps to send sewage into the coagulation sedimentation tank, where the waste water is mixed with chemicals to remove foam and suspended solids, and then precipitated. The supernatant hydrolytic acidification tank converts or degrades macromolecular pollutants into small molecules and hard biodegradable organics into easily biodegradable organics through the action of anaerobic and facultative microorganisms, Based on the biodegradability of wastewater. The hydrolytic acidification tank flows into the biological tank automatically, and the pollutants in the wastewater are decomposed and converted into H2O, CO2, NH3, etc. through the action of aerobic microorganisms, so as to greatly remove COD and BOD in the wastewater. MBR membrane ultrafiltration in the oxidation tank is used to separate mud and water, and all pollution indicators reach the specified discharge. After the above treatment, the laundry wastewater can be reused. After the hardness is removed, it is also conducive to the amount of detergent, and clothes are easier to clean. It also maintains a virtuous circle. 4、 Washing sewage treatment unit - News Each treatment unit introduces that the grid sewage is collected through the collection pipeline, and then flows into the regulating tank automatically after removing impurities such as floating matter and suspended matter through the grid. The grid is of carbon steel anti-corrosion structure. In order to save investment, small sewage treatment plants are recommended to use flat grids. Rotary mechanical grids are used in large sewage treatment plants. The quantity and quality of wastewater in the regulating pool vary greatly with time. In order to ensure the normal operation of subsequent treatment structures or equipment, it is necessary to adjust the quantity and quality of wastewater to ensure that the subsequent treatment structures can operate continuously in a homogeneous and uniform manner. Hydrolysis acidification reaction The wastewater after water quantity and quality regulation is subject to hydrolysis and acidification reaction in this unit. The purpose is to decompose organic pollutants such as protein with large molecular weight into organic substances with small molecular weight, so as to facilitate the aerobic biochemical treatment of the next level unit. At the same time, the mixed solution after oxygen consumption treatment is returned to the treatment unit for denitrification to effectively remove ammonia nitrogen in water. The main process unit of aerobic oxidation reaction wastewater treatment. The superelevation is 0.5m, the stable water layer is 0.5m, the bottom structural layer is 0.5m, and the filling volume load Nv=1.5 [kgBOD5/(m3 * d)]. A 1.5m filler layer is set in the oxidation tank, and the filler is suspended in the material layer. The filler provides a living place for water treatment microorganisms. Adding a filler layer will undoubtedly increase the treatment volume of the structure, so that the efficiency of aerobic treatment can be greatly improved. Roots drum machine is used to oxygenate aerobic microorganisms in the oxidation tank. The MBR membrane separation reactor replaces the secondary sedimentation tank at the end of the biological treatment technology with membrane modules to maintain high activated sludge concentration in the biological reactor and biological treatment organic load, so as to achieve the area of sewage treatment facilities, and maintain low sludge load and excess sludge volume. The membrane separation equipment immersed in the aerobic biological tank is mainly used to intercept the activated sludge and macromolecular organics in the tank. The concentration of activated sludge (MLSS) in the membrane bioreactor can reach 8000~10000mg/L, or even higher; The sludge age (SRT) can be more than 30 days. Due to its effective interception function, the membrane bioreactor can retain microorganisms with a long generation cycle, and achieve deep purification of sewage. At the same time, nitrifying bacteria can fully reproduce in the reactor, and its nitrification effect is obvious, providing possibility for deep phosphorus and nitrogen removal. Chlorine dioxide for drinking water Chlorine dioxide is a very effective water purification agent for purifying drinking water, including good deodorization and decolorization capacity, high efficiency and killing capacity at low concentration. Chlorine dioxide is used for water. When its concentration is 0.5~1mg/L, it can kill 99% of the water in one minute, with the effect 10 times that of chlorine and twice that of chlorine. Its disease capacity is 3 times higher than that of chlorine and 1.9 times higher than that of ozone. Chlorine dioxide is also fast and has a wide pH range (6-10). It is not affected by the hardness and salinity of water, can maintain a long-term effect, can efficiently eliminate protozoa, spores, molds, algae and biofilms, does not generate chlorophenols and trihalogens, and can oxidize many organic compounds, thus the toxicity and mutagenicity of water are various characteristics. 5、 Washing sewage treatment plant - news design principle 1. Comply with local environmental protection laws, regulations and technical policies; 2. Adopt mature process technology and equipment, give full play to its advantages, design requirements, and ensure operation; 3. Implement the principle of energy conservation in the design, maximize the cost of wastewater treatment and operation, realize resource utilization, and strive for large economic benefits; 4. Take full account of the convenience and labor intensity of engineering operation; 5. Take necessary measures to try to influence and avoid secondary pollution; 6. Reasonable project cost, operation cost, project benefit, and reliability with great limit; 6、 Washing sewage treatment device - news equipment features 1. The number of structures is small, the cost is low, and the civil construction cost is saved 2. The structure is simple, and the combined structure is conducive to the expansion and reconstruction of the wastewater treatment plant 3. The treatment is fast, and the water quality after treatment is good 4. The equipment can be buried below the surface without surface area 5. The operation cost is low, and the automatic operation does not require special guards 7 Washing sewage treatment equipment - news processing range Sewage treatment equipment, domestic sewage treatment equipment, industrial wastewater treatment equipment, air treatment equipment washing, breeding, slaughtering, food, printing and dyeing, chemical industry, tanning, beer, beverage, electroplating pharmacy, coal mine, petroleum, ships, catering, residential quarters, tourist areas, urban and rural sewage treatment and transformation equipment VIII Washing sewage treatment device - news company after-sales service Longyu Environmental Protection Technology Co., Ltd. adopts the after-sales mode of full service for sewage treatment equipment. The warranty period starts from the date when the installation and commissioning of the equipment are completed and the acceptance of both parties is qualified. Within one year, if the equipment accessories are damaged by non-human factors, our factory is responsible for replacing the old parts with new ones for free and installing them; One year later, our factory will charge a maintenance fee lower than the market cost price, and provide technical services for life; Establish files for installation, daily repair and maintenance services, and record the use, repair and maintenance of equipment in detail. 1、 Provide technical services for equipment installation and free training for operators II. Provide technical training for the use, simple repair and maintenance of the whole set of equipment. 3、 Regularly return visit to the site to solve specific problems encountered in the operation of the equipment and take precautions. We will consider the after-sales service of equipment in terms of management and technology to ensure that the system has fewer problems and no problems. During the warranty period: the problems of the equipment shall be solved first through the hotline. If they cannot be solved through the telephone, our factory will send personnel to the site to solve them. The response time is as follows: (If our factory needs to send personnel to the site for maintenance, our factory will start immediately after receiving the phone call) Equipment failure shall be repaired within 24 hours, parts failure shall be repaired within 6 hours, and parts failure shall be repaired within 3 hours. Maintenance response time does not include travel time.