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Novel air flotation additive and preparation method

A flotation aid, a new type of technology, applied in the field of new air flotation aids and preparation, can solve the problems of large floor area, high sludge density, muddy water, etc., to improve the separation effect of mud and water, reduce the suspended solids in the effluent, Reduce the effect of muddy water

Inactive Publication Date: 2018-12-25
北京中晟清源环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the air flotation process is used to treat industrial sewage, due to the problem of reagent selection, the phenomenon of high sludge density and difficulty in flotation often occurs. In this case, since there is no solution, the air flotation process with a small footprint can only be abandoned. Adopt a precipitation process with a large area and a large investment in civil engineering
In addition, when the air flotation process is used to treat industrial sewage, it is often accompanied by the problem of mud in the effluent, which seriously affects the SS of the effluent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A new type of air flotation aid, its composition includes: fatty alcohol polyoxyethylene ether sodium sulfate, sodium dodecylbenzene sulfonate, sodium dodecyl sulfonate, sodium percarbonate, sodium persulfate, of which the air flotation aid The composition weight fraction of the agent is: 10-40 parts of the fatty alcohol polyoxyethylene ether sodium sulfate, 10-40 parts of the sodium dodecylbenzene sulfonate, and 10- 40 parts of the sodium dodecyl sulfonate. 40 parts, 2-10 parts of the sodium percarbonate, 2-10 parts of the sodium percarbonate.

Embodiment 2

[0015] Example 2: The new type of air flotation aid, wherein the weight fraction of the air flotation aid is: 10 parts of the fatty alcohol polyoxyethylene ether sodium sulfate and 10 parts of the sodium dodecylbenzene sulfonate Parts, 10 parts of the sodium dodecyl sulfonate, 2 parts of the sodium percarbonate, and 2 parts of the sodium persulfate.

Embodiment 3

[0017] The novel air flotation aid according to embodiment 1 or 2, wherein the composition weight fraction of the air flotation aid is: 40 parts of the fatty alcohol polyoxyethylene ether sodium sulfate, and the sodium dodecylbenzene sulfonate 40 parts, 40 parts of the sodium dodecyl sulfonate, 10 parts of the sodium percarbonate, and 10 parts of the sodium persulfate.

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PUM

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Abstract

The invention discloses a novel air flotation additive which comprises, by weight, 10-40 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10-40 parts of sodium dodecyl benzene sulfonate, 2-10 parts of sodium percarbonate and 2-10 parts of sodium persulfate. The novel air flotation additive is used for improving mud and water separation effect of an air flotation machine, the air flotation additive is fed at the front end of a dissolved air tank of the air flotation machine, passes a releaser and then can generate more tiny bubbles with richer hole diameters, drained water with mudcan be effectively decreased, and drained water suspended matters are reduced.

Description

Technical field [0001] The invention relates to the technical field of industrial sewage treatment, in particular to a novel air flotation aid and a preparation method. Background technique [0002] At present, the process commonly used in the treatment of industrial wastewater in my country is: pretreatment + biochemical treatment + advanced treatment process. The biochemical treatment process has a high removal rate of pollutants, but the area is often relatively large. Therefore, most enterprises and centralized sewage treatment plants will adopt physical and chemical methods in the pretreatment and advanced treatment stages. In order to further reduce the footprint of the treatment process, there are currently many enterprises and centralized sewage treatment plants that generally adopt the air flotation process. In the pretreatment and advanced treatment stages, the main advantages of using the air flotation process are: no need for civil construction facilities, easy to pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/24
CPCC02F1/24
Inventor 王玉清刘畅王丽
Owner 北京中晟清源环保科技有限公司