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Novel compound microbial agent used for sludge reduction treatment

A compound microbial inoculant and reduction technology, which is applied in biological sludge treatment and other directions to achieve the effect of increasing production and reducing sludge accumulation.

Inactive Publication Date: 2014-07-09
XIAMEN EPIGENESIS TECH
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Problems solved by technology

[0004] The applicant independently developed a combination agent of microbial flora, which can greatly improve the sewage treatment capacity of the existing sewage treatment system on the basis of no change or a small amount of modification of the existing sewage biochemical treatment system, so that the sewage can be discharged up to the standard, and greatly reduce Sludge volume, odor reduction and operation and maintenance costs, there is no similar plan disclosed yet

Method used

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Embodiment Construction

[0009] 1. Screening and domestication of complex microbial flora: The present invention screens out the dominant strains composed of photosynthetic bacteria, lactic acid bacteria and yeasts by studying the effects of various microorganisms in sewage treatment, mainly including Bacillus subtilis , Bifidobacterium longum, Lactobacillus acidophilus, Lactobacillus casei, Rhodopseudomonas palustris, Saccharomyces cerevisiae and other 13 different microorganisms, and use the symbiotic proliferation relationship of their microbial flora to domesticate. The principle of action is: yeast assimilates glucose As a substrate, pyruvate is produced through the metabolism of the glycolytic system. Lactic acid bacteria use pyruvate as their metabolic substrate to produce lactic acid; photosynthetic bacteria then use the lactic acid and produce sugars for yeast, thus completing a cycle.

[0010] In this way, the complex microbial flora can continue to help each other to keep alive and strong i...

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Abstract

The invention discloses a novel compound microbial agent used for sludge reduction treatment. The compound microbial agent consists of photosynthetic bacteria, lactic acid bacteria and saccharomycetes, and comprises bacillus subtilis, bifidobacterium animals, bifidobacterium bifidum, bifidobacterium longum, lactobacillus acidophilus, lactobacillus casei, lactobacillus delbrueckii, lactobacillus fermentium, lactobacillus plantarum, lactococcus lactis, rhodopseudomonas palustris, streptococcus thermophilus and saccharomyces cerevisiae which are 13 different microorganisms in total. The compound microbial agent can reduce BOD (biochemical oxygen demand), COD (chemical oxygen demand) and TSS (total suspended solids) to expected values, effectively reduces sludge deposit in a treatment plant, and reduces corrosion on equipment to lower maintenance cost; and besides, bacteria can decompose an organic compound and can generate byproducts beneficial to environment.

Description

technical field [0001] The invention relates to a novel composite microbial bacterial agent for sludge reduction treatment, which belongs to the technical field of environmental protection. Background technique [0002] With the great improvement of my country's urban and industrial sewage treatment capacity, the amount of excess sludge produced in the corresponding sewage treatment process is also increasing. Compared with sewage, sludge is more toxic. At present, 80% of my country's sludge has not been properly treated. Disposal, but its production is still increasing at a rate of 10%-15% per year. Sludge pollution is becoming more and more serious. The problem of sludge treatment has become a worldwide problem. [0003] Even though the current sewage treatment plant has concentrated the sludge, the moisture content of the wet sludge is still as high as 80%. Moreover, these sludges contain mercury, cadmium, pathogenic bacteria, parasites and other substances harmful to the...

Claims

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Application Information

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IPC IPC(8): C02F11/02
Inventor 苏佳萍
Owner XIAMEN EPIGENESIS TECH
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