Sewage treatment capacity determination method and device

A technology for sewage treatment and determination of methods, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of reducing sewage treatment efficiency, incapable of sewage bioinhibition or biotoxicity treatment, Problems affecting the sewage treatment effect of sewage treatment plants

Active Publication Date: 2021-03-30
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the sewage treatment methods in the prior art cannot timely process the bioinhibition or biotoxicity contained in the sewage, affect the sewage treatment effect of the sewage treatment plant, and reduce the sewage treatment efficiency. , so as to provide a method and device for determining the amount of sewage treatment

Method used

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  • Sewage treatment capacity determination method and device
  • Sewage treatment capacity determination method and device

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Effect test

Embodiment 1

[0030] The embodiment of the present invention provides a method for determining the amount of sewage treatment, such as figure 1 shown, including the following steps:

[0031] Step S10: Obtain the biological inhibition index value of the sewage to be treated.

[0032] In an optional embodiment, the bioinhibition index value of the sewage to be treated refers to the value of one or more indicators that will cause harm to the organisms used in the treatment process flow to be discharged into the sewage treatment system, for example, bioinhibition The performance index value may include the value of one or more indexes in the oxygen consumption rate inhibition rate, nitrification rate inhibition rate and other indicators.

[0033] Step S20: Comparing the biological inhibition index value of the sewage to be treated with a preset threshold value, wherein the preset threshold value is determined according to the treatment capacity to be discharged into the sewage treatment system...

Embodiment 2

[0072] The embodiment of the present invention provides a specific embodiment of determining the amount of water allowed to enter the sewage treatment system by using the method for determining the amount of sewage treated in Embodiment 1 above.

[0073] Dozens of drainage nodes in the park were sampled, and the inhibition rate of oxygen consumption rate and nitrification inhibition rate of each water sample were analyzed respectively. The analysis method of oxygen consumption rate inhibition rate refers to ISO 8192:2007, and the analysis method of nitrification inhibition refers to ISO 9509:2006. The analysis results show that the inhibition rate of oxygen consumption rate and nitrification inhibition rate of crotonaldehyde production wastewater (the wastewater is currently incinerated by the production enterprises in the park and not discharged into the comprehensive sewage treatment plant in the park) exceeds 30%.

[0074] BioWin numerical simulation software was used to mo...

Embodiment 3

[0100] The embodiment of the present invention provides a device for determining the amount of sewage treatment, such as Figure 4 shown, including:

[0101] The untreated sewage analysis module 10 is used to obtain the bioinhibition index value of the untreated sewage. For details, refer to the description of step S10 in the above-mentioned embodiment 1.

[0102] The comparison module 20 is used to compare the biological inhibition index value of the sewage to be treated with the preset threshold value, wherein the preset threshold value is determined according to the processing capacity to be discharged into the sewage treatment system. For details, see the above-mentioned embodiment 1. Description of step S20.

[0103] The sewage treatment volume determination module 30 is used to determine the volume of water allowed to enter the sewage treatment system according to the comparison result. For details, see the description of step S30 in the above-mentioned embodiment 1.

...

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Abstract

The invention provides a sewage treatment capacity determination method and device, wherein the method comprises the steps: obtaining a biological inhibition index value of to-be-treated sewage; comparing the biological inhibition index value of the to-be-treated sewage with a preset threshold value, wherein the preset threshold value is determined according to the treatment capacity of a to-be-discharged sewage treatment system; and determining the amount of water allowed to enter the to-be-discharged sewage treatment system according to the comparison result. As the biological inhibition index value is determined according to the treatment capacity of the to-be-discharged sewage treatment system, the amount of water allowed to enter the to-be-discharged sewage treatment system determinedaccording to the comparison result is within the treatment capacity range of the to-be-discharged sewage treatment system; after water with the water amount determined according to the comparison result enters the to-be-discharged sewage treatment system, the to-be-discharged sewage treatment system has the capability of timely treating sewage with biological inhibition, and the sewage treatmenteffect and treatment efficiency of the to-be-discharged sewage treatment system cannot be influenced by to-be-treated sewage.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method and device for determining sewage treatment volume. Background technique [0002] The main mode of sewage treatment in the industrial park is to pre-treat the sewage in the enterprise first, and then discharge the sewage into the comprehensive sewage treatment plant in the park after meeting the takeover requirements of the comprehensive sewage treatment plant in the park, where the sewage will be treated uniformly by the sewage treatment plant. The takeover requirements of sewage treatment plants are usually based on conventional indicators such as chemical oxygen demand, ammonia nitrogen, total phosphorus, etc. At 400mg / L or 500mg / L. [0003] However, even if the sewage discharged into the sewage treatment plant meets these conditions and meets the takeover requirements of the sewage treatment plant, some sewage is bioinhibitory or biotoxic. After being disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
CPCC02F3/00
Inventor 沈志强周岳溪席宏波于茵
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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