Real-time online detection system for industrial wastewater

Technical Features: 1. The water quality and volume of industrial sewage fluctuate greatly with a wide range of changes. 2. The change law of industrial sewage water volume is different from that of domestic sewage, with characteristics such as random intermittency and uncertainty. 3. The pollutant concentration of industrial sewage is relatively high, generally with a CODcr value above 2000 mg/L. 4. Industrial wastewater has complex and diverse components and high content, such as phenolic compounds (benzene series, heavy metal ions and other toxic substances, pathogens, etc.). 5. The wastewater contains refractory organic matter and nutrient elements such as phosphorus; 6. The wastewater often contains radioactive substances; 7. The wastewater treatment is difficult; 8. Great impact on the environment: Due to the high concentration of discharged pollutants or special properties (such as cyanide-containing wastewater), it will cause pollution and harm to the surrounding environment. 9. The sewage must be disinfected before discharge or reuse. Application Fields of Industrial Sewage Treatment Equipment 1. Printing and dyeing industry: The production wastewater discharged by printing and dyeing factories mainly contains dyes, acids, bases and various auxiliaries. If discharged directly without treatment, it will cause serious pollution to the water body and even destroy the ecological environment. 2. Paper industry: The production wastewater discharged by paper mills is mainly composed of bleaching and cooking waste liquid, pulp washing drainage, as well as part of cooking waste liquid and machining white water flushing water, etc. The fiber suspended matter content in this type of wastewater is high and relatively stable. 3. Food and beverage processing industry: The production wastewater discharged by food processing plants mainly includes slaughterhouse sewage, ground flushing water of meat processing plants and cleaning water after slaughter. Among them, the ground flushing water of meat processing plants accounts for about 60% of the total discharge. 4. Sugar and paper industry: The ferrous sulfate solution produced by the soda ash method for production discharged from sugar factories is commonly known as green vitriol, which is a colloidal precipitate of solid iron hydroxide. 5. Chemical and pharmaceutical industry: The production process of various organic chemicals discharged by chemical plants cannot do without the participation of chemical raw materials and chemical products to generate intermediates or final products, and release a large amount of heat at the same time, which keeps the temperature rising until the reaction reaches equilibrium. After cooling down in the chemical reactor, solid crystalline salts are precipitated to obtain the finished product. Therefore, a large amount of heat steam is generated in chemical and pharmaceutical enterprises, and this part of heat needs to be dissipated by cooling devices. 6. Metallurgical and iron and steel smelting industry: In the metal smelting process, various acids are used as catalysts to participate in redox reactions to generate metal oxides and various salts, and release a large amount of heat. Therefore, the high-temperature furnace exhaust gas in metallurgical and iron and steel smelting enterprises is also one of the important pollution sources. 7. Textile, printing and dyeing, leather and fur processing industry: The textile, clothing, leather and fur processing industry will generate a large amount of dust, fiber scraps, leather scraps, cloth scraps, fluff, cloth dust, sand and other substances in the production process. If discharged arbitrarily without treatment, it will seriously pollute the air and affect human health. 8. Municipal engineering: Domestic sewage in residential quarters is generally collected by a centralized collection system for treatment, and then discharged into the urban pipe network after reaching the standard.

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