The sludge treatment process mainly includes four core links: concentration, stabilization, dehydration and final disposal. Resource utilization is achieved through reduction, stabilization and harmless treatment. 1. Concentration: Reduce the moisture content of sludge from more than 95% to 90%-93% through gravity concentration or mechanical concentration, and reduce the volume by
1. Functional agents and auxiliary agents 1.1 Functional agents remove specific pollutants, while other agents prevent scaling, defoaming and cleaning. Common functional agents in sewage treatment processes include ammonia nitrogen removers, phosphorus removers, heavy metal capture agents, decolorizers, defoamers, etc. 1.1.1 Decolorizers: In the process of industrial sewage treatment, sewage
Conventional treatment: In the secondary treatment of urban sewage, the dosage of about 10-30 mg/L can meet the basic treatment needs according to the effective component of aluminum oxide. Special case: When the wastewater has high turbidity (such as more than 500 NTU) or contains heavy metals/organic matter, the dosage
