Description of the treatment process of each stage of the food production wastewater reuse treatment

Description of the treatment process of each stage of the food production wastewater reuse treatment equipment

by:Ocpuritech     2021-03-11
Food wastewater reuse treatment equipment segments Process Description author of the article: With the improvement of food requirements, and now there is a lot of food production and food waste emissions, but also focus on emissions in a short time, a large amount of water fluctuations, mainly from recycling waste water , Reverse osmosis concentrated water and flushing wastewater, it has the characteristics of large water volume, uneven drainage, high concentration, many impurities and suspended solids, and good biodegradability. The impact of wastewater quality on wastewater treatment should be fully considered in the process design. The characteristics of the discharged wastewater are: large concentration changes, high organic content, and perishable. Directly discharged into the water body will consume dissolved oxygen in the water, destroy the ecosystem, and seriously pollute the environment. So, how do we deal with it? The circulating sewage in the food production wastewater can be mixed with domestic sewage, and the large particles in the wastewater can be removed through a fine grid, and then flow into the oil separation sedimentation tank, in the oil separation sedimentation tank Pollutants such as blood stains and grease are removed, and the effluent enters the regulating tank, where the water quality and quantity are adjusted and the sludge and water are separated. Part of the sedimentation sludge is returned, and the remaining sludge is dried and transported out for harmless disposal. Since wastewater contains a certain amount of insoluble organic matter, macromolecular organic pollutants and long-chain organic pollutants that are difficult to be removed by microorganisms, anaerobic treatment must be selected as a pretreatment process before aerobic treatment. At the same time, due to the high concentration of ammonia nitrogen in wastewater, pure aerobic treatment cannot achieve the effect of phosphorus and nitrogen removal. Therefore, the long-term discharge of effluent from aerobic treatment will make the receiving water body eutrophication, and anaerobic treatment is good. The oxygen process has a certain denitrification effect. In the anaerobic tank, anaerobic microbial hydrolysis and acidification reactions are carried out to gradually decompose insoluble organic matter into dissolved organic matter, and digest long-chain organic pollutants and macromolecular organic pollutants into short-chain organic matter, such as: acetic acid, Propionic acid, etc. Nowadays, with the continuous development of science and technology, our lives are becoming more and more convenient. The changes in society and the improvement of living standards have made people pay more and more attention to life, especially the living environment. People are more concerned about the living environment. If you need to know more details of wastewater treatment, please feel free to inquire at any time.
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