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Method for monitoring toxicity of flooding water of municipal sewage plant

A technology for influent toxicity and urban sewage, applied in measurement devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of double DO electrode equipment system errors, continuous monitoring instability, complex equipment systems, etc., to achieve operation and maintenance. Convenience, low investment, and strong representative results

Inactive Publication Date: 2013-10-02
江西同灿环保科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

There are few sewage biotoxicity monitoring equipment developed on the basis of this principle, and the developed equipment has problems such as complex system, unstable continuous monitoring, high maintenance requirements, and systematic errors between dual DO electrode equipment.

Method used

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  • Method for monitoring toxicity of flooding water of municipal sewage plant
  • Method for monitoring toxicity of flooding water of municipal sewage plant
  • Method for monitoring toxicity of flooding water of municipal sewage plant

Examples

Experimental program
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Embodiment

[0032] (1) if figure 1 As shown, an urban sewage plant influent toxicity monitoring device is established, which consists of sludge supply structure 1, sewage supply structure 2, sludge filter 3, sewage filter 4, tee 5, pre-aeration tank 6, pre-aeration Head 7, aerator 8, sewage pump 9, sludge pump 10, magnetic stirrer 11, DO electrode probe 12, PLC man-machine control system 13, DO sensor 14, thin iron sheet 15, overflow port 16, complete mixing An early warning reactor 17, a magnetic stirrer 18, a glass gasket 19 and a water outlet 20 are formed.

[0033] (2) The three-way 5 is diverted to connect the sludge pump 10, and the sewage is first passed into the pre-aeration tank 6 for treatment, and then connected to the sewage pump 9, and the sludge pump 9 is pumped into the complete mixed early warning according to the flow ratio Q1:Q2=1:3. Reactor 17, control the total flow rate so that the hydraulic retention time of the fully mixed early warning reactor 17 is 1min, turn on ...

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Abstract

The invention discloses a method for monitoring toxicity of flooding water of a municipal sewage plant. Mixed liquor of a biochemical pool and flooding water of a sand setting pool of the municipal sewage plant are continuously collected and then mixed according to certain proportion, the respiratory rate of the mixed liquor is measured continuously, and the toxicity and containment degree of the flooding water on the activated sludge of the biochemical pool can be judged through the change of the respiratory rate. According to the method, the toxicity of the flooding water can be monitored continuously online, so that the containment condition of the flooding water on the activated sludge of the biochemical pool can be reflected truly, and the method is less in maintenance, is convenient to operate, and can be applied to an actual sewage treatment plant.

Description

technical field [0001] The invention relates to the field of urban sewage treatment, in particular to a method for monitoring the toxicity of urban sewage plant influent containing industrial wastewater. Background technique [0002] In the current water treatment technology, the activated sludge method is still widely used in large, medium and small sewage treatment plants due to its advantages of simple treatment process, low operating cost, and convenient maintenance. With the acceleration of my country's industrial development, the discharge of industrial wastewater is increasing year by year. It is more common for untreated industrial wastewater to be merged into urban domestic sewage and enter sewage treatment plants, which may contain a large amount of microbial toxic substances. Substances will inhibit the normal metabolic process of activated sludge microorganisms, resulting in unstable sewage treatment process, the quality of effluent water is not up to standard, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
Inventor 赵文玉杨广文余骏一王庆王哲
Owner 江西同灿环保科技有限公司
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