Industrial sludge deep dehydration conditioning agent and preparation method thereof

A deep dehydration and industrial sludge technology, applied in the direction of dehydration/drying/concentrated sludge treatment, etc., can solve the problems of high organic content of sludge dehydration conditioner, high cost of sludge treatment, harm to human health, etc., and achieve adsorption electricity Enhanced neutralization and adsorption bridging effect, low dehydration cost, and improved filtration performance

Inactive Publication Date: 2018-11-23
ANQING FENGYUAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the sludge dehydration conditioner has high organic content, high cost, is difficult to degrade and has biological toxicity, and seriously endangers human health, and the cost of sludge treatment is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In this example, the industrial sludge deep dehydration conditioner is made of the following raw materials in parts by weight: 17 parts of calcium oxide, 17 parts of silicon oxide, 30 parts of coagulant, 5 parts of anionic polyacrylamide, 3 parts of citric acid, additives 10 copies;

[0024] Among them, the additive is made of clay, bentonite, and talcum powder according to the mass ratio of 1:1:1; the particle size of the additive is 100 microns;

[0025] The coagulant is compounded by the following raw materials in parts by weight: 5 parts of dimethyl diallyl ammonium chloride, 5 parts of ferrous sulfate, 5 parts of polyferric chloride, 6 parts of aluminum potassium sulfate, and 6 parts of sodium aluminate part, 6 parts of polyaluminum chloride;

[0026] The preparation method of the industrial sludge deep dehydration conditioner of the present embodiment comprises the following steps:

[0027] S1. Weighing each raw material according to parts by weight;

[0028] S...

Embodiment 2

[0031] In this example, the industrial sludge deep dehydration conditioner is made of the following raw materials in parts by weight: 25 parts of calcium oxide, 25 parts of silicon oxide, 50 parts of coagulant, 15 parts of anionic polyacrylamide, 10 parts of citric acid, additives 16 copies;

[0032] Wherein, the additive is sepiolite; the particle diameter of the additive is 300 microns;

[0033] The coagulant is compounded by the following raw materials in parts by weight: 12 parts of dimethyl diallyl ammonium chloride, 11 parts of ferrous sulfate, 13 parts of polyferric chloride, 14 parts of potassium aluminum sulfate, and 15 parts of sodium aluminate part, 13 parts of polyaluminum chloride;

[0034] The preparation method of the industrial sludge deep dehydration conditioner of the present embodiment comprises the following steps:

[0035] S1. Weighing each raw material according to parts by weight;

[0036] S2, uniformly mixing calcium oxide, silicon oxide, anionic pol...

Embodiment 3

[0039] In this example, the industrial sludge deep dehydration conditioner is made of the following raw materials in parts by weight: 21 parts of calcium oxide, 21 parts of silicon oxide, 40 parts of coagulant, 10 parts of anionic polyacrylamide, 7 parts of citric acid, additives 13 copies;

[0040] Among them, the additive is bentonite, talcum powder, sepiolite, and zeolite compounded according to the mass ratio of 1:1:1:1; the particle size of the additive is 200 microns;

[0041] The coagulant is compounded by the following raw materials in parts by weight: 8 parts of dimethyl diallyl ammonium chloride, 8 parts of ferrous sulfate, 9 parts of polyferric chloride, 10 parts of potassium aluminum sulfate, and 11 parts of sodium aluminate part, 10 parts of polyaluminum chloride;

[0042] The preparation method of the industrial sludge deep dehydration conditioner of the present embodiment comprises the following steps:

[0043] S1. Weighing each raw material according to parts...

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Abstract

The invention provides an industrial sludge deep dehydration conditioning agent and a preparation method thereof, and relates to the technical field of sludge dehydration. The industrial sludge deep dehydration conditioning agent is prepared from the following raw materials: calcium oxide, silica, a coagulant, anionic polyacrylamide, citric acid and additives. The industrial sludge deep dehydration conditioning agent provided by the invention can be used for performing surface chemical modification on sludge particles, so that the water on the surfaces of the sludge particles and the bound water in capillary channels are enabled to become free water, the water can be further separated out by means of mechanical pressure filtration, and the purpose of dewatering the sludge is accordingly achieved; the conditioning agent also has a stronger absorption function, and can disperse sludge flocs and destroy the floc structure, thus improving the dehydration degree of the sludge; furthermore,the industrial sludge deep dehydration conditioner has the advantages of being non-toxic and harmless, and not causing secondary pollution to the environment.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an industrial sludge deep dehydration conditioner and a preparation method thereof. Background technique [0002] With the rapid development of cities and industries, the discharge of urban domestic sewage and industrial sewage is increasing, so that the amount of by-product sludge produced in sewage treatment is increasing. How to treat these sludge has also become a social development. unavoidable problem. At present, there are three main methods of sludge treatment: landfill, composting and incineration. Sludge has the characteristics of "four highs": first, high moisture content; second, high organic matter content, which is easy to rot and odor; third, heavy metal content Fourth, the germ content is high, containing a large number of bacteria, parasites, and viruses. Without harmless treatment, the sludge is discarded arbitrarily and simply landfilled, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14
CPCC02F11/14
Inventor 江同生
Owner ANQING FENGYUAN CHEM
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