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2017-12-07 13:36:21
PAM10-30kg. If the process for the first biochemical, then the above dosing doubled. The actual dosage according to the water quality is different, under normal circumstances first add PAC, plus PAM, and sometimes may need to add acid or alkali to adjust PH, industrial wastewater treatment commonly used, according to the site fine-tuning. PAC is polyaluminum chloride, PAM is polyacrylamide. The former is flocculant, the latter is coagulant. Usually used in combination if the treatment process for the chemical and physical conditions, the dosage PAC about 0.1% (GB, 10% of the effective content). The two are mainly used for coagulation sedimentation tank, PAM about 1-3ppm, that is, for each 10,000 tons of water, respectively, adding about 10 tons of PAC, that materialized processing section
Under normal circumstances, each has its own merits, concrete or concrete coagulation experiments based on water quality to determine what kind of good points,
The production process is simple, in the 1980s is a commonly used technology at home and abroad. Due to the poor acid-solubility of aluminum hydroxide, the acid
If you add a solid to dissolve it takes some time, and as an emergency treatment to join a drug, no effect after the precipitation is complete, to maintain the
Aluminum plays a role in sewage treatment polymerization, Baotuan, precipitation. Dosing less; dosing more, not only can not be aggregated, can not be aggregate
At the same time and hydrogen atoms can form hydrogen bonds, and flocculation can react with aluminum ions can be combined to form a complex