Composite fungicide for sludge treatment

A composite bacterial agent and sludge treatment technology, which is applied in the direction of biological sludge treatment, etc., can solve the problems of harsh environmental requirements, large investment of bacterial agents, and difficulty in storage and transportation, so as to improve catalytic degradation efficiency, shorten fermentation time, The effect of increasing the rate of organic matter

Inactive Publication Date: 2018-10-12
SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the bacterial agent provided by the present invention improves the utilization rate of sludge, the input of the bacterial agent is large, and the degradation efficiency needs to be improved
In addition, the treatment agent has harsh requirements on the environment and is not easy to store and transport

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A composite bacterial agent for sludge treatment, comprising the following components in parts by weight: 3 parts of modified Bacillus subtilis, 0.5 parts of aerobic cellulolytic bacteria, 8 parts of sodium dihydrogen phosphate, modified iron powder 1 part, 12 parts of purple bamboo salt, 20 parts of fructooligosaccharide. Wherein, the modification method of the modified Bacillus subtilis is as follows: (1) adding Pu'er tea into an ethanol aqueous solution equal to the weight of Pu'er tea, decocting at 25°C for 10 minutes to obtain Pu'er tea extract; (2) adding Bacillus subtilis Bacillus subtilis and Streptococcus aurantium were added to the culture medium in sequence, and the mixed bacteria powder was obtained after standing at 37°C for 1 hour. The ratio of Bacillus subtilis to Streptococcus aurantium was 2:1; the culture medium was discarded lobster It is prepared by mixing shell powder, potassium dihydrogen phosphate and deionized water; (3) Put the mixed bacteria po...

Embodiment 2

[0021] A composite microbial agent for sludge treatment, comprising the following components in parts by weight: 5 parts of modified Bacillus subtilis, 1.0 parts of aerobic cellulolytic bacteria, 12 parts of sodium dihydrogen phosphate, modified iron powder 3 parts, 15 parts of purple bamboo salt, 28 parts of fructooligosaccharide. Wherein, the modification method of the modified Bacillus subtilis is as follows: (1) adding Pu'er tea into an ethanol aqueous solution 1.2 times the weight of Pu'er tea, and decocting at 30°C for 10 minutes to obtain Pu'er tea extract; (2) Add Bacillus subtilis and Streptococcus aurantium into the culture medium in sequence, and leave it at 37°C for 1 hour to obtain the mixed bacteria powder. It is made by mixing waste lobster shell powder, potassium dihydrogen phosphate and deionized water; (3) Put the mixed bacteria powder into Pu-erh tea extract, ferment at 37°C for 7 days, centrifuge, and spray dry to obtain.

[0022] The preparation method of...

Embodiment 3

[0024] A composite bacterial agent for sludge treatment, comprising the following components in parts by weight: 6 parts of modified Bacillus subtilis, 1.2 parts of aerobic cellulolytic bacteria, 15 parts of sodium dihydrogen phosphate, modified iron powder 4 parts, 18 parts of purple bamboo salt, 35 parts of fructooligosaccharide.

[0025] The modification method of the modified Bacillus subtilis is as follows: (1) adding Pu'er tea to an ethanol aqueous solution 1.2 times the weight of Pu'er tea, decocting at 35°C for 15 minutes to obtain Pu'er tea extract; (2) adding Bacillus subtilis Bacillus and Streptococcus aurantium were added to the culture medium in turn, and the mixed bacteria powder was obtained after standing at 37°C for 1 hour; the ratio of Bacillus subtilis to Streptococcus aurantium was 2:1; the culture medium was discarded lobster shells powder, potassium dihydrogen phosphate and deionized water; (3) put the mixed bacteria powder into Pu'er tea extract, ferment...

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PUM

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Abstract

The invention discloses a composite fungicide for sludge treatment. The composite fungicide comprises, by weight, 3-6 parts of modified bacillus subtilis, 0.5-1.2 parts of aerobic cellulose decomposition bacteria, 8-15 parts of sodium dihydrogen phosphate, 1-4 part of modified iron powder, 12-18 parts of black bamboo salt and 20-35 parts of fructo-oligosaccharide. After the fructo-oligosaccharideis used for modification of bacillus subtilis, the speed of bacillus subtilis in degrading organic matter in sludge is increased, and the sludge fermentation time is shortened; mixed bacterial powderis aerobic microorganisms, the iron powder is combined with sodium molybdate to obtain the modified iron powder, and when the modified iron powder enters the sludge, the iron powder is oxidized to release oxygen, so that a necessary condition for survival fermentation is provided for the composite bacterial powder; in addition, the catalytic degradation efficiency of the bacterial powder is improved due to sodium molybdate.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a composite bacterial agent for sludge treatment. Background technique [0002] Sludge is the product of sewage treatment, which is a complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids, etc. The main characteristics of sludge are high water content, high organic content, easy to smell, and fine particles, colloidal liquid, it is difficult to separate solid and liquid by sedimentation. With the acceleration of urbanization in our country, the municipal pressure brought by a large urban population has greatly increased urban domestic sewage and industrial wastewater, and more and more sludge has accumulated in various sewage treatment plants and rivers. Bring great hidden danger to people's health. [0003] At present, the commonly used sludge treatment method is to naturally ferment the sludge accumulation to make organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02
CPCC02F11/02
Inventor 凌云凌天阳金可心夏戊君
Owner SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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