Manganese-containing sludge deep dehydration treatment agent and treatment method

Abstract

The invention provides a manganese-containing sludge deep dehydration treatment agent which comprises basic aluminum chloride and polyquaternium, and the mass ratio of sludge to basic aluminum chloride to polyquaternium is 100: (3-10): (1.4-2.5); the sludge is manganese-containing sludge; the chain structure of the polyquaternary ammonium salt is a branched chain. The combination and proportion of the basic aluminum chloride and the polyquaternium are reasonable, sludge dewatering is facilitated, and it can be ensured that the manganese content in filtrate is reduced to the maximum extent; the whole treatment agent is neutral, and the loss of matched sewage treatment facilities is reduced in the sludge treatment process, so that the production cost is reduced; the dosage of the medicament is small, the market price fluctuation of the medicament is small, and the cost control is stable. The invention further discloses a manganese-containing sludge deep dehydration treatment method, steps are simplified, parameters are easy to control, and industrial production is easy to achieve.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a manganese-containing sludge deep dehydration treatment agent and a treatment method. Background technique [0002] With the strengthening of environmental protection awareness, the amount of sludge is increasing day by day. Improper disposal of sludge will cause "secondary pollution", which has become a problem in the field of environmental protection that has attracted much attention. [0003] At present, the mature sludge stabilization processes commonly used at home and abroad include: anaerobic digestion, aerobic digestion, heat treatment, heat drying and alkali stabilization. Commonly used sludge disposal methods are land use, incineration, sanitary landfill, composting, throwing into the sea, building materials, etc. [0004] For manganese-containing sludge (especially municipal sludge), the treatment method in the prior art is: after the manganese-containing sl...

AI Technical Summary

Problems solved by technology

This method has the following defects: during the treatment process, the chemical components of the press filtrate are complex, the manganese content is as high as 1200mg / L, and the disposal cost is high, which increases the difficulty of stable operation of the supporting sewage treatment plant; the traditional chemical agent is sulfuric acid Ferrous and hydrogen peroxide, the agents are strongly acidic. During the whole conditioning process, the equipment and facilities are in an acidic environment, which causes serious loss of spare parts and other auxiliary materials, which increases production and operation costs.

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