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Defoaming agent for treating high-concentration organic wastewater, and preparation method thereof

A technology of organic wastewater treatment and defoamer, which is applied in separation methods, chemical instruments and methods, foam dispersion/prevention, etc., can solve difficulties and affect the quality of effluent water, and achieve low cost, superior self-emulsification performance, and foam suppression good performance effect

Pending Publication Date: 2022-01-11
北京环水清科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When filamentous bacteria are dominant, a large number of foams will appear, which is a common problem. It brings certain difficulties to the operation and management of high-concentration organic wastewater, which in turn affects the quality of effluent water.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This example provides a defoaming agent for high-concentration organic wastewater treatment and a preparation method thereof, and the antifoaming agent material comprises:

[0019] Polyoxyethylene polyoxypropylene glycidyl ether and vegetable oleic acid, p-toluenesulfonic acid and triethanolamine;

[0020] Among them, the molar ratio of the overall material integral with polyoxyethylene polyoxypropylene glycidyl ether and the vegetable oleic acid is 1: (0.15-0.2), the raw material integral with the molar ratio of toluenesulfonic acid is 1: (1.25-1.35), the raw material is integrated with The molar ratio of triethanolamine is 1: (2.00-3.00);

[0021] The antifoaming agent is prepared as follows:

[0022] Step 1: Polyoxyethylene polyoxypropylene glycidyl ether and vegetable oxygen, stirred, and heated to 80 ° C;

[0023] Step 2: Toluenesulfonic acid, stirring continues to the mixed solvent in the reactor;

[0024] Step 3: Turn nitrogen gas in the mixed solvent in the reactor,...

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PUM

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Abstract

The invention discloses a defoaming agent for treating high-concentration organic wastewater, and a preparation method thereof, and belongs to the technical field of defoaming agents. Raw materials of the defoaming agent comprise polyoxyethylene polyoxypropylene glycerol ether and vegetable oleic acid in a molar ratio of 1: (0.15-0.2), p-toluenesulfonic acid accounting for 1.25-1.35% of the whole defoaming agent and triethanolamine accounting for 2-3% of the whole defoaming agent, and the defoaming agent is excellent in defoaming and foam inhibition performance and self-emulsifying performance and suitable for high-temperature, strong-acid and strong-alkali environments.

Description

Technical field [0001] The present invention relates to the field of defoaming agents, in particular a definitive agent for high concentration organic wastewater treatment and a preparation method thereof. Background technique [0002] At present, the kitchen label of urban domestic waste is high, the water content is high, the heat value, and the incineration method must be stored in the garbage in the garbage bin. The water content is further improved to reach the filtration. Increase the purpose of heat value to ensure the normal operation of the subsequent incinerator. [0003] The leachate produced by the landfill is mostly the active sludge method. However, during the biochemical aeration operation, it is easy to produce severe foam, and the microorganisms in the diaphragm activated sludge biofoam have mainly bacteria, fungi, algae ( Under light conditions), native animals and post-born animals, etc. Most of the fungi has a filamentous structure, which can be utilized to ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0422B01D19/0413
Inventor 张百凌赵海权张亚为王好春赵海欧
Owner 北京环水清科技有限公司
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