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Granular sludge aliquot microbial method

A granular sludge and microbial technology, which is applied in the treatment of granular microbial carriers, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of destructive crushing and difficult to achieve equal distribution of microorganisms, etc.

Active Publication Date: 2019-05-03
SUZHOU UNIV OF SCI & TECH
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Problems solved by technology

However, in the actual operation process, it cannot be crushed destructively, and the microorganisms are equally divided after removing impurities. Therefore, it is difficult to achieve the purpose of equally dividing the microorganisms by only using the weight method or the volume method. It is necessary to find a method that is both A method that does not affect the structure of granular sludge and can achieve the equalization of microbial biomass

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  • Granular sludge aliquot microbial method
  • Granular sludge aliquot microbial method

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0018] The method for the microbial equalization of the granular activated sludge sample of the present invention comprises the following steps:

[0019] 1) First, in the nutrient solution, the granular sludge is sorted through screens of different meshes, and the granular sludge with the same particle size is screened out. Generally, at least three layers are designed, the uppermost layer of large and the lowermost layer of small granular sludge are screened out, and the middle layer of sludge is taken as a sample for parallel tests. The granular activated sludge taken out of the reactor is placed in the nutrient solution, which means that it is placed in the nutrient solution required by the original organisms, which avoids the impact of the screening process on the microbial activity. Therefore, the nutrient solution is to avoid the mobile phase carrier i...

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Abstract

The invention discloses a microbiologic method for equally dividing granular sludge. The microbiologic method comprises the following steps that by adoption of a method of screening, separating, equally dividing weight, and evaluating the activity, at first, granular sludge formed by large-grain inorganic solids and small-grain sludge formed by small-grain inorganic solids or small-grain sludge without inorganic solids are screened to separate granular sludge with similar sizes, then samples are equally divided by adopting a weight equally dividing method, and at last, the samples are extracted by detecting the activity and breaking off both ends, and the activated granular sludge is equally divided by adopting a sample evaluation method. The size of the granular sludge obtained according to the method is high in consistency, the biomass difference is small, and the data reliability of a following parallel test can be ensured.

Description

technical field [0001] The invention belongs to the field of wastewater biological treatment, and relates to a method for equally dividing microorganisms from granular sludge. Background technique [0002] Granular sludge has attracted the attention of researchers because of its good settling performance and high microbial biomass. At the same time, the particles can form different habitats from the inside to the outside, suitable for the growth of different microorganisms, and able to resist the impact of the external environment. At present, the granulation of activated sludge has been realized in many types of reactors, including SBR, UASB and IC, etc. Although the academic community has not yet reached a unified understanding of the formation mechanism of granular sludge, it is highly affirmed for the effect of granular sludge in the wastewater treatment process. [0003] When studying the influence of influencing factors (temperature, pH, heavy metals, etc.) on microbi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/00C02F3/00
CPCC02F3/00C02F2003/001
Inventor 李祥黄勇袁怡
Owner SUZHOU UNIV OF SCI & TECH
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