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Coal slime water treatment agent and preparation method thereof

A technology of slime water and treatment agent, which is applied in water/sludge/sewage treatment, water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of slow treatment effect, high price of treatment agent and water content of sediment High-end problems, to achieve low-cost effects

Inactive Publication Date: 2018-10-19
南京必蓝环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of these slime water treatment agents is relatively high, and the treatment effect is slow. At the same time, after the flocculation and sedimentation of the suspended matter in the coal slime water, the water content in the sediment is relatively high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A coal slime water treatment agent, comprising cationic starch, calcium chloride and coagulation aid, the weight percentage of cationic starch in the coal slime water treatment agent is 2%-3%, and the weight percentage of calcium chloride is 20%-25% , the weight percentage of the coagulant aid is 1-1.5%, and the rest is water.

[0019] The cationic starch is a cationic starch with a degree of substitution of 0.026-0.030.

[0020] The cationic starch is selected from cationic corn starch.

[0021] The coagulant aid is polyacrylamide.

Embodiment 2

[0023] A coal slime water treatment agent, comprising cationic starch, calcium chloride and coagulation aid, the weight percentage of cationic starch in the coal slime water treatment agent is 2%-3%, and the weight percentage of calcium chloride is 20%-25% , the weight percentage of the coagulant aid is 1-1.5%, and the rest is water.

[0024] The cationic starch is a cationic starch with a degree of substitution of 0.026-0.030.

[0025] The cationic starch is selected from cationic tapioca starch.

[0026] The coagulant aid is polyacrylamide.

Embodiment 3

[0028] A kind of coal slime water treatment agent, comprises cationic starch, calcium chloride and coagulation aid, the weight percent of cationic starch in the described coal slime water treatment agent is 2%-3%, the weight percent of calcium chloride is 20%-25% , the weight percentage of the coagulant aid is 1-1.5%, and the rest is water.

[0029] The cationic starch is a cationic starch with a degree of substitution of 0.026-0.030.

[0030] The cationic starch is selected from the mixture of cationic corn starch and cationic tapioca starch.

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PUM

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Abstract

The invention relates to a coal slime water treatment agent. The coal slime water treatment agent comprises cationic starch, calcium chloride and a coagulation aid, and is characterized by comprising2 to 3 percent by weight of cationic starch, 20 to 25 percent by weight of calcium chloride, 1 to 1.5 percent by weight of coagulation aid and the balance of water. The cationic starch is cationic starch with substitution degree of 0.026 to 0.030. The coal slime water treatment agent is low in price and enables suspended matters in the coal slime water to flocculate and settle rapidly during use;and after the suspended matters in the coal slime water is settled, the water content of the settling material is low.

Description

technical field [0001] The invention relates to a coal slime water treatment agent and a preparation method thereof. Background technique [0002] Coal slime water contains a large amount of suspended solids, most of which are extremely fine coal powder, and fine mineral powder and other particles. Coal slime water needs to be treated to separate suspended solids before it can meet the discharge standard or be recycled. These suspended solids are difficult to settle naturally, so treatment agents are usually added to the slime water to promote the settlement of suspended solids. At present, the slime water treatment agent usually chooses inorganic salt polymers, such as polyaluminum chloride and polyferric chloride. The price of these slime water treatment agents is relatively high, and the treatment effect is slow. At the same time, after the flocculation and sedimentation of the suspended matter in the coal slime water, the water content in the sediment is relatively high...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5236C02F1/5263C02F1/56
Inventor 叶根喜
Owner 南京必蓝环境技术有限公司