Selection method of environmental-friendly sludge dewatering optimum medicament

Abstract

The invention discloses a selection method of an environmental-friendly sludge dewatering optimum medicament. The method comprises the steps of (1) defining an experimentalized macromolecule range according to equipment of a dehydration machine room; (2) experimentalizing for optimizing a composite high molecular; selecting a macromolecule suitable for the equipment in a hydrophilic or oleophilic macromolecule range confirmed according to the step (1); selecting a macromolecule with high molecular weight for a primary sedimentation tank, selecting a macromolecule with high ion degree for a secondary sedimentation tank; according to the proportion of various sludges, mixing and matching the selected macromolecules according to the sludge proportion to obtain a composite high molecular medicament. The selection method of the environmental-friendly sludge dewatering optimum medicament provided by the invention has the advantages that the macromolecule range can be specifically selected according to the equipment of the dehydration machine room and sludge composition, the macromolecules can be ensured to be fully dissolved by 100 percent without being damaged, and the dosage is 100 percent in place without overdose. The aims of less dosage, high efficiency, low cost, and capability of reducing the moisture content of a sludge cake are achieved.

Description

technical field [0001] The invention relates to the technical field of bamboo planting, in particular to a method for selecting a preferred medicament for dewatering environmentally friendly sludge. Background technique [0002] At present, the high moisture content of sludge and difficult dehydration are the key obstacles restricting sludge treatment and disposal. Aiming at the problem of wastewater sludge dewatering, many scholars and companies at home and abroad have developed a process of chemical conditioning and tempering combined with mechanical dehydration, which is generally called sludge dewatering technology, which can dehydrate sludge with a moisture content of 99% to 60% at one time. %, the chemical conditioners used are generally iron salts and calcium salts, supplemented by a small amount of other types of flocculants. The total amount of conditioners often accounts for 20-30% of the dry weight of dewatered sludge. The consumption is high, and the weight of s...

AI Technical Summary

Problems solved by technology

[0002] At present, the high moisture content of sludge and difficult dehydration are the key obstacles restricting sludge treatment and disposal.

Aiming at the problem of wastewater sludge dewatering, many scholars and companies at home and abroad have developed a process of chemical conditioning and tempering combined with mechanical dehydration, which is generally called sludge dewatering technology, which can dehydrate sludge with a moisture content of 99% to 60% at one time. %, the chemical conditioners used are generally iron salts and calcium salts, supplemented by a small amount of other types of flocculants. The total amount of conditioners often accounts for 20-30% of the dry weight of dewatered sludge. High consumption, significant weight gain of sludge