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A method for early warning and management optimization of sewage treatment plant accidents using breath maps

A technology of sewage treatment plants and graphs, applied in data processing applications, particle and sedimentation analysis, instruments, etc., can solve the problems that cannot be discovered in time, and sludge cannot be characterized at the same time, and achieve the effect of less operation steps

Active Publication Date: 2022-03-29
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1
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  • Application Information

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Problems solved by technology

[0003] During the operation of the sewage plant, phenomena such as sludge bulking often occur, and cannot be detected in time
In general, good sludge activity can ensure the efficient removal of pollutants, and good settling performance of the secondary settling tank can ensure good mud-water separation. However, sludge has different biological states (such as activity, adsorption and settling properties) With different monitoring and control indicators, conventional measurement indicators cannot simultaneously characterize other characteristics of sludge

Method used

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  • A method for early warning and management optimization of sewage treatment plant accidents using breath maps
  • A method for early warning and management optimization of sewage treatment plant accidents using breath maps
  • A method for early warning and management optimization of sewage treatment plant accidents using breath maps

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Embodiment

[0108] Example analysis:

[0109] The experimental samples were taken from 7 SBR reactors in the laboratory, and the activated sludge was taken from the aerobic end of the reactor. G1 and G2 are floc sludge, D1 and D2 are granulated floc sludge, and Y1, Y2, and Y3 are granular sludge. The breath spectrum, particle size, adsorption capacity and sedimentation experiments were calculated for seven different groups of sludge, and the specific data are shown in Table 1. Finally use Origi n The software compares the oxygen consumption rate with other indicators for linear or nonlinear fitting to obtain a calculation model, and the results are shown in the attached figure. Figure 1-3 SOUR e 、SOUR t The median particle size showed a non-linear downward trend, the adsorption capacity showed a linear upward trend, and the sludge index and compressibility index showed a non-linear upward trend; Figure 4 With the increase of RI, the adsorption capacity showed a non-linear downward ...

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Abstract

The invention discloses a method for realizing accident warning and management optimization of a sewage treatment plant by adopting a breath map, which includes: (1) taking the aerobic terminal sludge of the sewage plant and measuring its concentration MLSS; (2) performing a breath map test to obtain 3 SOUR e 、SOUR n and SOUR t (3) Judging the biological activity and structural characteristics (including adsorption performance, particle size and sedimentation performance) of the sludge through the specific oxygen consumption rate, so as to evaluate the operation status of the sludge system. This method can be used for early warning of accidents in sewage treatment plants, and provides a feasible judgment method for the operation status of reaction tanks and secondary sedimentation tanks, which is of great significance in the smooth operation of sewage plants and energy saving and consumption reduction.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and relates to a method of simultaneously characterizing biological activity and sludge structure of sludge by using a breath spectrum, and completing early warning of accidents in sewage plants and secondary sedimentation tanks in reaction tanks through sludge activity indicators in the process of sewage treatment. run management. Background technique [0002] At present, in the activated sludge process, the judgment of sludge operation status mainly focuses on the monitoring of water quality parameters, which requires the staff of the sewage plant to invest a lot of energy and time. [0003] During the operation of the sewage plant, phenomena such as sludge bulking often occur, and cannot be detected in time. In general, good sludge activity can ensure the efficient removal of pollutants, and good settling performance of the secondary settling tank can ensure good mud-water separation. However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24G01N15/02G01N15/04G06Q10/06G06Q50/26
CPCG06Q10/0631G06Q10/0635G06Q50/00G01N15/02G01N15/04G01N33/24
Inventor 李志华李亚明郭耀俞汉青盛国平
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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