Composite macromolecular sludge dehydrating flocculant and preparation method thereof

A composite polymer and sludge dehydration technology, applied in sludge detoxification, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as troublesome operation, and achieve cost saving, simple use, and good pollution The effect of mud dehydration effect

Active Publication Date: 2017-05-31
杨立亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problem of adding flocculants twice in the prior art and the operation is troublesome, the present invention provides a composite polymer sludge dewatering flocculant and its preparation method. The sludge dewatering flocculant is easy to use and the sludge dehydration The processing method is easy to operate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A composite polymer sludge dewatering flocculant, prepared from the following raw materials in parts by weight: 11 parts of alkylamine polyoxyethylene ether phosphate, 17 parts of trimethylglycine, 13 parts of tetraethylenepentamine, heavy metal ion capture 7 parts of agent, 7 parts of sodium lignosulfonate, 6 parts of polyvinylpyrrolidone, 19 parts of activated carbon powder, 14 parts of polyferric sulfate and 5 parts of ethyl acetate.

[0035] The preparation method of the composite polymer sludge dewatering flocculant comprises the following steps in order:

[0036] Step 1: Grind 14 parts of raw material polyferric sulfate and 19 parts of activated carbon powder respectively and pass through a sieve with a range of 300-700 mesh, and take the under-sieve product and add it to the reactor;

[0037] Step 2: Add 11 parts of alkylamine polyoxyethylene ether phosphate, 7 parts of heavy metal ion trapping agent and 7 parts of sodium lignosulfonate into the reactor, and mix ...

Embodiment 21

[0050] The difference from Example 1 is that the above composite polymer sludge dewatering flocculant is used for sludge dehydration treatment, and the amount of sludge is calculated as 100 parts, and 2 parts of the composite polymer sludge dewatering flocculant are added to the sludge . The final results showed that the moisture content of the dewatered sludge was 44.0%.

Embodiment 22

[0052] The difference from Example 1 is that the above composite polymer sludge dewatering flocculant is used for sludge dehydration treatment, and the amount of sludge is calculated as 100 parts, and 3 parts of the composite polymer sludge dewatering flocculant are added to the sludge . The final result showed that the moisture content of the dewatered sludge was 40.6%.

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PUM

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Abstract

The invention relates to a composite macromolecular sludge dehydrating flocculant. The composite macromolecular sludge dehydrating flocculant is prepared from the raw materials: alkylamine polyoxyethylene ether phosphate, trimethylglycine, tetraethylenepentamine, a heavy-metal ion collector and lignosulfonate as well as polyvinyl pyrrolidone, activated charcoal powder, composite macromolecular polyferric sulfate and ethyl acetate. In addition, the invention further relates to a preparation method for the composite macromolecular sludge dehydrating flocculant. According to the composite macromolecular sludge dehydrating flocculant and the preparation method thereof, all the raw materials are blended to exert complementary coordination among the substances, thus, the specific resistance of sludge is lowered greatly, the sludge dehydrating effect and decrement effect are improved, toxic, harmful and pollutant substances are effectively removed, the method is safe and stable and is free of secondary pollution, and subsequent sludge treatment processes are reduced; the decrement, stabilization, innocent treatment and resource-converting of the sludge are achieved, the operation is simple and convenient due to one-time dose, and the dosage is small, so that the flocculant is applicable to the dehydrating treatment of sludge resulting from municipal sewage and industrial wastewater.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a composite polymer sludge dewatering flocculant and a preparation method thereof. Background technique [0002] Sludge is the final product of sewage treatment. With the continuous and rapid development of my country's economy and the acceleration of urbanization, the scale of sewage treatment has gradually expanded, and the output of sludge has also increased. The composition of sludge is relatively complex, the content of organic matter is high, the concentration of pollutants is high, and it contains a large number of harmful pathogens, heavy metals, microorganisms and their organic pollutants. The reduction of sludge is becoming more and more important, and for sludge treatment, dehydration is the most important pre-treatment process, and it is a very critical link to reduce the cost of subsequent treatment and disposal of sludge. Sludge has str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14C02F101/20
CPCC02F11/004C02F11/14C02F2101/20C02F2303/06
Inventor 杨立亮陈坦张连贵
Owner 杨立亮
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