Sewage biological toxicity monitoring method

A technology of sewage biology and toxicity, applied in the direction of testing water, measuring devices, instruments, etc.

Inactive Publication Date: 2019-11-08
广州市净水有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of methods for monitoring the quality of sewage treatment using microbial communities.

Method used

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  • Sewage biological toxicity monitoring method

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Embodiment Construction

[0015] The present invention will be further described below. It should be noted that this embodiment is based on the technical solution and provides detailed implementation and specific operation process, but the protection scope of the present invention is not limited to this embodiment.

[0016] The present embodiment provides a sewage biological toxicity monitoring method, comprising the following steps:

[0017] S1. Select the community structure of 10 microorganisms including lactic acid bacteria, Escherichia coli, sulfur bacteria, nitrosobacillus, nitrosobacillus, denitrifying bacteria, actinomycetes, bacillus, rotifers and bellworms as the characteristic community of the sewage treatment plant;

[0018] S2. Select influent COD concentration, influent total nitrogen concentration, influent water temperature, influent dissolved oxygen content, chroma, SS, sludge age and sludge concentration as environmental factors, and treat all sewage according to the selected environme...

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Abstract

The invention discloses a sewage biological toxicity monitoring method. The sewage biological toxicity monitoring method includes the steps of S1, selecting 10 types of microorganisms including lactobacilli, escherichia coli, thiobacteria, first nitrite bacteria, second nitrite bacteria, denitrification bacilli, actinomycetes, bacilli, rotifers and vorticellidae as characteristic communities of sewage treatment plants; S2, selecting inflow-water COD concentration, inflow-water total-nitrogen concentration, inflow-water temperature, inflow-water dissolved oxygen content, chromaticity, SS, sludge age and sludge concentration as environmental factors, and according to the selected environmental factors, classifying all the sewage treatment plants; S3, establishing reference groups of the sewage treatment plants of each class obtained in S2 respectively; S4, when some sewage treatment plant of the sewage treatment plants of each class runs unstably, measuring the community structure of thesewage treatment plant, comparing the community structure of the sewage treatment plant with standard community structures of the reference groups of the sewage treatment plants of each class, then,diagnosing the sewage treatment plant, analyzing reasons from a microorganism aspect, and providing bases for sewage treatment plant repairing. By adopting the sewage biological toxicity monitoring method, the sewage treatment capability of the sewage treatment plants can be evaluated, and the quality of outflow water is monitored.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a method for monitoring biological toxicity of sewage. Background technique [0002] At present, the discharge of a large amount of domestic sewage and industrial wastewater without effective treatment in my country has caused serious water environmental pollution problems, among which the eutrophication of water bodies caused by nitrogen and phosphorus pollution is particularly prominent. The discharge of urban domestic sewage is large, and the content of organic matter, nitrogen, phosphorus and other nutrients is high, and it has become an important source of water pollution. Due to the good treatment effect and low treatment cost, the activated sludge method has been widely used in the treatment of urban domestic sewage for nearly a hundred years. The activated sludge method is currently the most widely used method in the field of urban sewage treatment. Through artificial str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
CPCG01N33/18G01N33/1806G01N33/1866
Inventor 黄俊熙严兴岑玉铭洪涛唐霞廖茂荫肖先念梁毅成
Owner 广州市净水有限公司
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