Defoaming agent for sewage treatment and preparation method of defoaming agent

A technology for sewage treatment and defoaming agent, which is applied in degassed water/sewage treatment, energy and wastewater treatment, etc., can solve the problems of poor defoaming and anti-foaming effect, large amount of use, high price, etc., and achieves reduction of surface tension, Simple production process and low cost effect

Inactive Publication Date: 2016-08-10
张能力
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, silicone and polyether defoamers have good defoaming and antifoaming effects, but they are expensive, and fats are cheap, but they are used in large quantities and have poor defoaming and antifoaming effects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A defoamer for sewage treatment, the raw materials according to parts by weight include: 10 parts of modified silicon polyether, 20 parts of polyether modified siloxane, 20 parts of emulsifier, 5 parts of polyethylene glycol, diethyl alcohol 0.6 parts of glyceride, 0.6 parts of ethylene bis stearamide, 3 parts of heavy liquid paraffin, 10 parts of dimethyl silicone oil, 1 part of white carbon black, 20 parts of complex fatty acid salt, 30 parts of structurant, polypropylene glycol stearin 5 parts of acid ester, 2 parts of dispersant, 3 parts of stabilizer.

[0026] The preparation method of the defoamer that is used for sewage treatment, concrete steps are as follows:

[0027] (1) take each raw material according to parts by weight;

[0028] (2) According to the requirements of block products on toughness, hardness, wear resistance, solubility, and temperature adaptability, put the determined fatty acid species and proportion into the reactor, heat up while stirring, a...

Embodiment 2

[0035] A defoamer for sewage treatment, the raw materials according to parts by weight include: 12 parts of modified silicon polyether, 25 parts of polyether modified siloxane, 25 parts of emulsifier, 6 parts of polyethylene glycol, diethyl alcohol 0.7 parts of glyceride, 0.7 parts of ethylene bis stearamide, 3.5 parts of heavy liquid paraffin, 12 parts of dimethyl silicone oil, 1.2 parts of white carbon black, 22 parts of complex fatty acid salt, 35 parts of structurant, polypropylene glycol stearin 5.5 parts of acid ester, 2.5 parts of dispersant, 3.5 parts of stabilizer.

[0036] The preparation method of the defoamer that is used for sewage treatment, concrete steps are as follows:

[0037] (1) take each raw material according to parts by weight;

[0038] (2) According to the requirements of block products on toughness, hardness, wear resistance, solubility, and temperature adaptability, put the determined fatty acid species and proportion into the reactor, heat up while ...

Embodiment 3

[0045] A defoamer for sewage treatment, the raw materials according to parts by weight include: 15 parts of modified silicon polyether, 30 parts of polyether modified siloxane, 30 parts of emulsifier, 8 parts of polyethylene glycol, diethyl alcohol 0.8 parts of glyceride, 0.8 parts of ethylene bis stearamide, 4 parts of heavy liquid paraffin, 15 parts of dimethyl silicone oil, 1.5 parts of white carbon black, 25 parts of complex fatty acid salt, 40 parts of structurant, polypropylene glycol stearin 6 parts of acid fat, 3 parts of dispersant, 4 parts of stabilizer.

[0046] The preparation method of the defoamer that is used for sewage treatment, concrete steps are as follows:

[0047] (1) take each raw material according to parts by weight;

[0048](2) According to the requirements of block products on toughness, hardness, wear resistance, solubility, and temperature adaptability, put the determined fatty acid species and proportion into the reactor, heat up while stirring, a...

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PUM

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Abstract

The invention discloses a defoaming agent for sewage treatment and a preparation method of the defoaming agent. The defoaming agent comprises the following raw materials by weight: modified silicone polyether, polyether siloxane, an emulsifying agent, polyethylene glycol, diethanol glycerolipid, ethylene bis stearamide, heavy liquid paraffin, dimethyl silicon oil, white carbon black, compound fatty acid salt, a texturing agent, propylene glycol stearic acid ester, a dispersant and a stabilizer, wherein the texturing agent comprises more than two types of chemical substance in molasses, polyaluminium chloride, polyaluminium sulfate, aluminum sulfate, calcium chloride and modified bentonite. The defoaming agent is good in stability and low in cost, greatly reduces the sewage treatment cost, does not cause secondary pollution, has high effect on reducing surface tension, has good and rapid defoaming and antifoaming effect, does not poison microorganisms in sewage, does not change COD and BOD performances of the sewage, and is beneficial to the subsequent water treatment technology, simple in production process and convenient to use.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a defoamer for sewage treatment and a preparation method thereof. Background technique [0002] Domestic sewage, industrial sewage treatment process and water purification process require a large amount of defoamers, especially viscose fibers use a large amount of additives and surfactants in the production process, which increases the surface tension of wastewater and makes it The effluent of the sewage treatment plant produces a large amount of foam during the discharge process. If no defoaming treatment is carried out, a large amount of white foam will be produced, which will float at the outlet with the discharge water, forming a foam layer to block sunlight, air and normal substances and energy of the water body. The exchange affects the natural purification ability of the water body and seriously affects the normal growth of river aquatic organisms. At the same ti...

Claims

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Application Information

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IPC IPC(8): C02F1/20
CPCY02W10/37C02F1/20
Inventor 张能力
Owner 张能力
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