Muddy water curing agent for preparing plant-growing bag from engineering slurry, plant-growing bag and preparation method

Abstract

The invention discloses a muddy water curing agent for preparing a plant-growing bag from engineering slurry, the plant-growing bag and a preparation method. The muddy water curing agent is prepared from the following raw materials: a copolymer, a cross-linking agent, acrylic acid, an initiator and a surface cross-linking agent, wherein the copolymer is polyvinyl alcohol, acrylamide, methacrylamide or acrylonitrile; the cross-linking agent is selected from one or more of polyethylene glycol diglycidyl ether, ethoxylated glycerol triacrylate and ethylene glycol dimethacrylate; mixing the copolymer, the cross-linking agent and the acrylic acid, and carrying out polymerization reaction; adding the initiator into the solution subjected to the polymerization reaction, heating and stirring to obtain hydrogel, and mincing the hydrogel to obtain gel particles; and spraying the surface cross-linking agent onto the surfaces of the gel particles, and drying to obtain the muddy water curing agent. The muddy water curing agent can effectively modify mud and other waste sludge and make the mud and other waste sludge into the plant-growing bag so that resources are saved, the environment is protected, the cost is low, and the transportation cost is saved.

Description

technical field [0001] The invention belongs to the technical field of solid waste utilization, and relates to a mud water solidifying agent for preparing a vegetable bag from engineering mud, a vegetable bag and a preparation method. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] In recent years, the scale of underground engineering construction in my country has gradually expanded, and the number is increasing. In the construction of underground engineering, shield machines produce a large amount of soil during the excavation process, which is mixed with mud and water to form mud, which is transported to the ground through slurry pumps or pipelines. After further proces...

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Problems solved by technology

The direct discharge method and the incineration method discharge the mud to the waste residue field, which will pollute the environment and cannot be recycled; the mechanical treatment method has a limited treatment range and can only treat the separated dregs, and the equipment cost is expensive; the chemical flocculation sedimentation method is harmful to The treatment effect of high-density mud is poor, and the solid phase of mud is not easy to flocculate and settle; the chemical curing method directly adds a curing agent to the mud to improve the properties of the mud and reuse it as a resource

Existing research on solidification mainly focuses on drilling mud, soft soil, sludge, etc. There are relatively few studies on the solidification of shield tunnel waste mud

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