| abstract |
PROBLEM TO BE SOLVED: To provide a flocculant and a sludge treatment method which are safe for animals and plants, do not cause environmental pollution, and have high flocculation efficiency. SOLUTION: Polylysine and chitosan are mixed at a weight ratio of 1: 9. ９-polylysine produced by actinomycetes is preferred as the polylysine, and the polylysine can be used in the form of a culture solution. This is a method of coagulating sedimentation of sludge in treated water or adding a coagulant to hydrous sludge to dewater sludge.It is included in organic wastewater such as agricultural settlement wastewater, domestic wastewater, food processing wastewater, and dye wastewater. Effective for organic sludge. |