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Paper mill wastewater treatment
Paper Mill Wastewater Treatment
Applicable Equipment:
Band filter presses are used for paper mill sludge dewatering, achieving a moisture content of 80%-85%; plate and frame filter presses and chamber filter presses can achieve a moisture content of 75%-83%; diaphragm filter presses can achieve a moisture content of 70%-78%.
Chemical Selection for Paper Mill Wastewater Treatment:
The effectiveness of polyacrylamide in papermaking depends on its average molecular weight, ionic properties, ionic strength, and the activity of other copolymers.
The most important applications of polyacrylamide are in paper mill wastewater treatment (anionic polyacrylamide), fiber recovery, and downstream sludge dewatering (cationic polyacrylamide).
Chemical Consumption:
The pretreatment process for paper mill wastewater treatment requires polyaluminum chloride and anionic polyacrylamide. The dosage varies depending on the wastewater concentration; higher concentrations require higher dosages. A dosage of approximately 10-15 ppm (i.e., 0.01-0.015 kg/ton of wastewater) is recommended. The basic consumption of cationic polyacrylamide for post-treatment sludge dewatering is generally 3-6 kg for oven-dry sludge.
Packaging Form:
Solid products are packaged in woven bags; liquid products are packaged in chemical drums...
Packaging Specifications:
Packaged in 15 kg or 25 kg paper-plastic composite bags.
Transportation and Storage:
The product should be stored in a cool, dry place, protected from moisture. Under suitable conditions, it has a shelf life of two years. During transportation, it should be handled with care to avoid impact and damage.
