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Silicone defoamer-Hulunbeier manufacturer Beijing Shuibiqing Beijing Shuibiqing Environmental Protection Technology Co., Ltd. is prone to foam. After the amount of sludge, the foam will gradually disappear. At the initial stage of activated sludge process operation, because the sewage contains some surface activity, it is easy to cause surface foam. But as the activated sludge matures, these surface activities are biodegraded, and the foaming phenomenon will gradually disappear. When the denitrification foam activated sludge treatment is operated at low load, denitrification will occur in the sedimentation tank or the place with insufficient aeration, and the release will cause the density of the sludge to a certain extent and drive part of the sludge to float up, resulting in foaming. , The suspension foam produced is usually not very good. Surfactant The surface active agent in the foamed sewage and the surface activity of starch, protein, oil, etc. all contain polar-non-polar groups, so-called amphiphilic molecules in the molecular structure. Under aeration conditions, the non-polar group is in the bubble at one end, and the polar group is selectively adsorbed by the hydrophilic, so that the hydrophilic surface becomes hydrophobic and adheres to the bubble water film. Float to the surface together. Biofoam. Most of the microorganisms associated with foam contain lipids. Silicone defoamer-Hulunbeier manufacturer Product characteristics: This kind of microorganisms is lighter than water and easily floats to the surface. Most of the microbes related to foam are filamentous or branched, which can trap particles and bubbles, etc., and float to the surface of the water. The surrounding bubbles, the tension of the surface makes the bubbles not easy to break, and the bubbles are even more. The air flotation effect produced by aeration bubbles is often the main driving force for foam formation. Leather coking industry sewage treatment agent Leather coking industry sewage treatment agent treatment of leather industry pollution is relatively serious, the discharged wastewater contains a large amount of organic matter, suspended matter, a large amount of chemical materials (sulfide, softener, etc.) and harmful chromium polluted sewage; The treatment of wastewater in this industry uses air flotation + oxidation ditch technology. Coking wastewater is mainly used for coking, gas purification and refinement of chemical products. The discharge volume is large and the water quality composition is complex. The particles are floated by air bubbles and must be small in shape, light in weight and hydrophobic. The process media separation water in the purification of remaining ammonia and coal gas and the refining of chemical products belongs to high-concentration coking wastewater; for tar distillation and phenol refined distillation.
Some separated high-concentration organic sewage, because it contains a large amount of and is difficult to biodegrade, is generally sent to the tubular incinerator in the tar workshop. The coking wastewater treatment station is mainly used to treat the wastewater containing phenols and other pollutants in the coking and gas purification of the whole plant. The treatment is divided into: pretreatment + biological water treatment agent + post treatment + sludge water treatment agent treatment and other processes and The composition of public works, pretreatment process pretreatment includes gravity degreasing, flotation degreasing, water quality homogenization, accident adjustment, and the treatment and disposal of separated oil. From the source of coking wastewater, there are water brought in by coking (surface water and combined water), and water used in the recovery and refining of chemical products. The water quality varies with the raw coal and coking process. Sewage is firstly gravity deoiled to remove heavy oil, and then flotation is used to remove light oil. Since ammonia distilled sewage is filtered before ammonia is distilled, it is directly sent to the air flotation tank. Partial water-dissolved air method is used for flotation degreasing, and water treatment chemicals are added, and the air flotation tank is equipped with a releaser. After removing the emulsified oil and scum, the regulating tank enters the regulating tank.
Product features:
The inorganic flocculant includes inorganic coagulant and inorganic polymer flocculant, and the organic flocculant includes synthetic organic polymer flocculant, natural organic polymer flocculant and microbial flocculant. Polyacrylamide flocculants are based on the nature of the charge on the molecular chain.