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Biological sewage purifying agent and preparation method thereof

A sewage purifying agent and biological technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as long treatment cycle, secondary environmental pollution, and ecological risks. Achieving a good treatment effect

Inactive Publication Date: 2018-09-14
东莞市石鼓污水处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are chemical methods, flocculant methods, bioreactor methods, membrane filtration methods, etc. for the purification of sewage, but some of the above sewage purification methods require huge treatment equipment, some have a long treatment cycle, and some methods even have ecological problems. Risk or secondary pollution to the environment, neither can meet the current needs of sewage treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The present embodiment provides a preparation method of a biological sewage purifying agent, comprising 75 parts of poly-3-hydroxybutyrate, 4 parts of mannose erythritol lipid, 30 parts of rhamnolipid, 25 parts of alkyl glycoside, and Bacillus subtilis 50 parts and 12 parts of diatomaceous earth are put into a grinder, and the slurry is ground to a particle size of 0.4 microns; wherein, the raw material mixture: ethanol: the mass ratio of glyceryl monostearate dispersant is 57:42.6:1.4; The obtained slurry is passed through a 600-mesh sieve, and then injected into a preheated centrifugal spray granulator through a peristaltic pump for granulation and drying to obtain a biological sewage purifying agent.

Embodiment 2

[0018] The present embodiment provides a preparation method of a biological sewage purifying agent, comprising 90 parts of poly(3-hydroxybutyrate-3-hydroxyvalerate), 15 parts of mannose erythritol lipid, and 20 parts of rhamnolipid , 20 parts of alkyl glycosides, 70 parts of Bacillus subtilis, and 5 parts of diatomaceous earth are put into a grinder, and the slurry is ground to a particle size of 0.4 microns; wherein, the raw material mixture: ethanol: the quality of glyceryl monostearate dispersant The ratio is 57:42.6:1.4; pass the obtained slurry through a 600-mesh sieve, and then pump it into a preheated centrifugal spray granulator through a peristaltic pump for granulation and drying to obtain a biological sewage purifier.

Embodiment 3

[0020] The difference between the third embodiment and the first embodiment is that 12 parts of polybutylene succinate are added to the raw material. Other parts are the same as those in Embodiment 1, and will not be repeated here.

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PUM

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Abstract

The invention relates to the field of sewage purification and particularly discloses a biological sewage purifying agent. The biological sewage purifying agent is prepared from polyhydroxyalkanoate, mannosylerythrutol lipid, rhamnolipid, alkyl glycoside, bacillus subtilis and diatomite. The preparation method includes: proportionally adding raw materials, ethyl alcohol and a glyceryl monostearatedispersion agent into a grinding machine, and grinding pulp to particle size of 0.4-0.5micron; screening obtained pulp through a 600-mesh screen, pumping into a preheated centrifugal spray granulatorthrough a peristaltic pump, granulating and drying to obtain the biological sewage purifying agent. The biological sewage purifying agent is mainly formed by degradable materials and slowly degraded in sewage while microorganisms and activating agents are released, so that a long-term purification function of the biological sewage purifying agent is realized, and great treatment effects on variouspollutants in sewage are achieved.

Description

technical field [0001] The invention relates to the field of sewage purification, and specifically discloses a biological sewage purification agent and a preparation method thereof. Background technique [0002] The odor phenomenon of the water body is the result of anaerobic decomposition of organic matter in the water body. The organic matter consumes a large amount of oxygen during the anaerobic decomposition process, causing the water body to lack oxygen, causing anaerobic microorganisms to multiply and decompose to produce ammonia, hydrogen sulfide, etc. to escape the water surface. , and the lack of oxygen in the water body inhibits the growth and reproduction of beneficial microorganisms, aquatic animals and plants, greatly weakens the aerobic effect of microorganisms, and at the same time leads to the reduction of heavy metals such as iron and manganese in the water, and forms ferrous sulfide with sulfur in the water, making the water appear black. [0003] There are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCC02F3/348
Inventor 王祖梁左诗珂陈灿林
Owner 东莞市石鼓污水处理有限公司