A microbial enzyme compound preparation and its preparation method and its application in the treatment of industrial sewage or landfill leachate

A technology of landfill leachate and compound preparation, which is applied in the application field of microbial enzyme compound preparation and its preparation, and in the treatment of industrial sewage or landfill leachate. It can solve the problems of sewage treatment failure and other problems, so as to improve the reaction rate and COD removal rate. Effect

Active Publication Date: 2022-01-14
SHANGHAI ENVIRONMENTAL & SANITARY ENG DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defect that the existing EM bacterial agent cannot adapt to the sewage treatment failure caused by part of the sewage environment, the present invention provides a microbial enzyme compound preparation containing EM bacterial agent, which can effectively improve the initial purification rate of the EM bacterial agent, and quickly Transformation of sewage into an environment suitable for the survival of EM bacteria agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The present invention also provides the preparation method of the microbial enzyme composite preparation described in the above technical scheme, comprising the following steps:

[0031] (1) Get the sludge at the bottom of the aerobic pond and the sludge at the bottom of the anaerobic pond of the sewage treatment plant, and filter it after diluting 5 to 10 times with water respectively to obtain the aerobic crude filtrate and the anaerobic crude filtrate;

[0032] (2) Filter the aerobic coarse filtrate and anaerobic coarse filtrate through a 0.45 μm microporous membrane respectively to obtain aerobic fine filtrate and anaerobic fine filtrate;

[0033] (3) inserting the aerobic refined filtrate into the fermentation medium for aerobic cultivation for 3 to 7 days to obtain an aerobic fermentation liquid;

[0034] Putting the anaerobic refined filtrate into the fermentation medium for anaerobic cultivation for 3-7 days to obtain anaerobic fermentation liquid;

[0035] (4)...

Embodiment 1

[0046] Prepare COD by yourself Cr The concentration is 3000mg / L, BOD 5 Synthetic wastewater with a concentration of 1200mg / L and a pH value of 10-11.

[0047] (1) Take 10L each of the aerobic pool bottom sludge and the anaerobic pool bottom sludge of a sewage treatment plant in Shanghai, add 10 times the volume of water and mix them with a 30 μm filter membrane to obtain the aerobic crude filtrate and Anaerobic crude filtrate;

[0048] (2) Filter the aerobic coarse filtrate and anaerobic coarse filtrate through a 0.45 μm microporous membrane respectively to obtain aerobic fine filtrate and anaerobic fine filtrate;

[0049] (3) Connect the aerobic fine filtrate to the synthetic wastewater for aerobic cultivation for 5 days to obtain an aerobic fermentation liquid; connect the anaerobic fine filtrate to the synthetic wastewater for anaerobic cultivation for 7 days to obtain an anaerobic fermentation liquid;

[0050] (4) Centrifuge the aerobic fermentation broth and the anaero...

Embodiment 2

[0053] Prepare COD by yourself Cr The concentration is 3000mg / L, BOD 5 Synthetic wastewater with a concentration of 1200mg / L and a pH value of 10-11.

[0054] (1) Take 10L of the aerobic pool bottom sludge and the anaerobic pool bottom sludge of a sewage treatment plant in Shanghai, respectively add 5 times the volume of water and mix them with a 5 μm filter membrane to obtain the aerobic crude filtrate and Anaerobic crude filtrate;

[0055] (2) Filter the aerobic coarse filtrate and anaerobic coarse filtrate through a 0.45 μm microporous membrane respectively to obtain aerobic fine filtrate and anaerobic fine filtrate;

[0056] (3) Connect the aerobic refined filtrate to the synthetic wastewater for aerobic cultivation for 7 days to obtain an aerobic fermentation liquid; connect the anaerobic fine filtrate to the synthetic wastewater for anaerobic cultivation for 7 days to obtain anaerobic fermentation liquid;

[0057] (4) Centrifuge the aerobic fermentation broth and the ...

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Abstract

The invention provides a microbial enzyme compound preparation and its preparation method and its application in the treatment of industrial sewage or landfill leachate, and relates to the technical field of sewage treatment. The microbial enzyme compound preparation of the present invention includes EM bacteria agent, aerobic bacteria proteases and anaerobic proteases. The aerobic protease and anaerobic protease extracted from activated sludge in the present invention can provide a large amount of active enzymes for the aerobic microorganisms and anaerobic microorganisms in the EM bacterial agent, improve its initial reaction rate, and then can significantly improve The initial COD removal rate of the EM bacterial agent can quickly improve the sewage environment that may break the balance of the EM bacterial agent, so the microbial enzyme compound preparation provided by the invention can be applied to the treatment of various industrial sewage or landfill leachate.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a microbial enzyme compound preparation and its preparation method and its application in treating industrial sewage or landfill leachate. Background technique [0002] With the development of industrialization and the increase of urban population, the continuous expansion of urbanization has led to an increase in the discharge of water, waste and sewage in the city, which has exacerbated the shortage of water resources and the pollution of water bodies. Urban domestic sewage and industrial sewage or landfill leachate treatment It has become the focus of much attention in environmental protection. In recent decades, the treatment technology of urban sewage has been continuously developed, mainly based on aerobic microbial treatment technology, which is mainly divided into two types of treatment processes: activated sludge method and biofilm method. The nitrogen and phos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F103/06
CPCC02F3/34C02F3/342C02F3/348C02F2103/06C02F2209/08C02F2305/06
Inventor 张瑞娜刘超傅乾邰俊杨韬余召辉曹瑞杰
Owner SHANGHAI ENVIRONMENTAL & SANITARY ENG DESIGN INST CO LTD
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