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Activated sludge characteristic determination method based on zoogloea microscopical image analysis

A technology of activated sludge and microscopic images, which is applied in the analysis of materials, material analysis by optical means, and measurement devices, etc., can solve problems such as ambiguity, hysteresis, and inability to accurately identify the structure of bacterial micelles, and achieve good operation parameters, use a wide range of effects that improve accuracy and immediacy

Active Publication Date: 2013-12-25
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0007] The present invention aims at the problem that in the existing sewage treatment operation management, it is impossible to quickly and accurately identify the bacterial micelle structure directly, and there are ambiguity and hysteresis in the analysis of conventional indicators of activated sludge, and provides a method based on bacterial micelle The method for determining the characteristics of activated sludge based on micro-image analysis, the technical solution of the present invention improves the accuracy and immediacy of activated sludge analysis and monitoring, and provides strong technical support for the effective adjustment and management of process parameters in the sewage treatment operation process

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Embodiment

[0047] A method for determining the characteristics of activated sludge based on microscopic image analysis of bacterial micelles in this embodiment, the steps of which are:

[0048] 1) Image information collection of activated sludge bacteria micelles:

[0049] Investigate 6 different municipal sewage treatment plants, and investigate different operating stages (initial stage of sludge acclimation, maturity, decline stage), different sludge states (good floc structure state, sludge bulking state, sludge disintegration, etc. Sludge abnormal state) and biochemical tank activated sludge under different process conditions were sampled, and 120 activated sludge samples were collected. Pipette 0.05mL of sludge from each activated sludge sample onto a glass slide, put it on a Phoenix brand Phenix mE200 series digital biological microscope for observation and take an image of bacterial micelles in the activated sludge. The magnification used in the digital biological microscope in t...

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Abstract

The invention discloses an activated sludge characteristic determination method based on zoogloea microscopical image analysis and belongs to the technical field of sewage treatment. The activated sludge characteristic determination method comprises the following steps of 1, activated sludge zoogloea image information acquisition, 2, zoogloea image analysis: measuring the diameter of zoogloea in an activated sludge sample, dividing the zoogloea in the activated sludge into microstructure zoogloea, medium structure zoogloea and large structure zoogloea, counting the three types of the zoogloea, calculating a zoogloea volume and calculating a zoogloea characteristic value Z, 3, zoogloea-activated sludge characteristic correlation analysis and construction of relationship functions of the zoogloea characteristic value Z, and SV, SVI, MLSS and MLVSS, and 4, calculation of characteristic parameters of the activated sludge sample to be analyzed. The activated sludge characteristic determination method improves accuracy and instantaneity of activated sludge analysis monitoring, and provides a strong technical support for realizing effective technological parameter adjustment and management in sewage treatment.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a method for determining the characteristics of activated sludge based on microscopic image analysis of bacterial micelles. Background technique [0002] Activated sludge in sewage treatment is a loose flocculent and irregular complex composed of microorganisms, inorganic substances, and organic substances. It is a carrier for the adsorption and degradation of organic pollutants in sewage. When the activated sludge is mature or in good condition, it will form a biological floc with a certain shape structure, and the structure is relatively compact and uniform----bacteria gel group. Bacterial micelles can not only protect microorganisms that decompose pollutants, but also have a high density, which is conducive to the completion of mud-water separation in the secondary settling tank and ensures the transparency of the effluent. [0003] The different dens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/00
Inventor 胡小兵张新喜刘孔辉江用彬
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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