Curing agent for rapidly curing river silt with high water content, and preparation method of curing agent

Abstract

The invention discloses a curing agent for rapidly curing river silt with high water content, and a preparation method of the curing agent. The curing agent for rapidly curing the river silt with highwater content is prepared by compounding a curing agent, a water absorbent, a dispersing agent, am activator and a plasticizer; the curing agent for rapidly curing the river silt with high water content is prepared from the following components in parts by weight: 45-50 parts of steel slag powder, 8-10 parts of cement, 15-20 parts of lime, 5-8 parts of gypsum, 3-4 parts of rubber powder, 2-3 parts of polyglycerol, 3-5 parts of the water absorbent, 1-2 parts of the dispersing agent, 3-5 parts of the activator and 2-4 parts of the plasticizer. The main components of the curing agent are the steel slag powder, the cement, the lime and the gypsum, and the rubber powder, the polyglycerol, the water absorbent, the dispersing agent, the activator and the plasticizer are added for improving the curing performance of the curing agent on the river silt with high water content, so that the problem that the river silt with high water content is difficult to cure is solved; compared with the traditional precipitation methods such as filter pressing, the curing agent omits the precipitation process with sludge moisture content from 250% to 100%, thus increasing the precipitation efficiency andlowering the precipitation cost; therefore, the curing agent for rapidly curing the river silt with high water content has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of curing agents, and is especially suitable for curing high water content river sludge, in particular to a curing agent for rapid curing of high water content river sludge and a preparation method thereof. Background technique [0002] With the acceleration of my country's industrialization process, the problem of water pollution has become more serious, and the output of river sludge produced after sewage treatment has doubled. For example, the dredging volume of major rivers in Tianjin urban area is as high as 6.5 million m 3 , the total amount of silt at the bottom of East Lake in Wuhan reached 34.8 million m 3 . River silt has the characteristics of high water content, flow-plastic state and extremely low strength, and often contains pollutants such as ammonia nitrogen and heavy metals. The traditional disposal methods of river silt are mainly heap drying, land reclamation and pressure filtration, et...

AI Technical Summary

Problems solved by technology

It can be seen that the existing patents mainly deal with sludge with a moisture content of about 100%, and there are still deficiencies in the treatment of sludge with a high moisture content.