Method for quality classification and pipe connection of chemical wastewater

A technology for chemical wastewater and wastewater, applied in chemical instruments and methods, oxidized water/sewage treatment, biological water/sewage treatment, etc., can solve problems such as high cost and unstable treatment effect, and achieve good economy, stable and efficient treatment , The effect of reducing drug costs

Inactive Publication Date: 2019-02-19
NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH & ENG RES INST
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of high cost and unstable treatment effect in the indiscriminate treatment method of chemical wastewater in the prior art. The present invention provides a method for separating and taking over chemical wastewater, which can effectively improve the wastewater treatment effect. The purpose of wastewater treatment that can achieve economic stability and substantially reduce toxic pollutants

Method used

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  • Method for quality classification and pipe connection of chemical wastewater
  • Method for quality classification and pipe connection of chemical wastewater
  • Method for quality classification and pipe connection of chemical wastewater

Examples

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Effect test

Embodiment 1

[0045] combine figure 1 , figure 2 and image 3 Shown, a kind of chemical industry waste water quality taking over method of the present invention, by comparing the respiration rate OUR of waste water and the endogenous respiration rate OUR of activated sludge 内源 The size of the waste water is classified and treated. The specific steps are as follows:

[0046] Step 1: Detect the respiration rate of wastewater. The specific operation process is: use the OUR online measuring instrument to measure the respiration rate OUR of the wastewater in the waste water pool 301. It is worth noting that the OUR online measuring instrument in this embodiment monitors the respiration rate OUR of each enterprise's wastewater in real time. Rate OUR. Classify and mark the data measured by each enterprise wastewater1 、OUR 2 、OUR 3 ..., in this implementation, the OUR online measuring instrument is electrically connected to the control system 400. The control system 400 can be a computer or ...

Embodiment 2

[0061] The content of this embodiment is basically the same as that of Embodiment 1, the difference being that: Step 3 of this embodiment: the specific steps of wastewater classification are: use the relative oxygen consumption S to determine the category of wastewater, specifically, S=biochemical respiration consumption Oxygen / endogenous respiration oxygen consumption, biochemical respiration oxygen consumption is the multiplication of biochemical respiration rate and reaction time, endogenous respiration oxygen consumption is the multiplication of endogenous respiration rate and reaction time. If the wastewater to be tested is S>1, the wastewater is judged as biochemical wastewater; if the wastewater to be tested is S=1, the wastewater is judged to be refractory non-toxic wastewater; if the wastewater to be tested is S<1, the wastewater is judged to be toxic wastewater. The classification method can effectively evaluate the toxicity of the wastewater, and the classification m...

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Abstract

The invention discloses a method for quality classification and pipe connection of chemical wastewater, and belongs to the technical field of wastewater treatment. The method for quality classification and pipe connection of the chemical wastewater specifically comprises the steps that 1, an OUR online measuring instrument is utilized for measuring a breathing rate OUR of the wastewater; 2, an activated sludge breathing instrument is utilized for measuring the breathing rate OUR of an endogenesis of activated sludge of an aeration tank of a wastewater pipe connection system; 3, by comparing the sizes of OUR and OUR endogenesis, the wastewater is divided into three categories including the biodegradable wastewater, the degradation-resistant non-toxic wastewater and the toxic wastewater; 4,different categories of wasterwater are discharged into different treatment systems for treatment respectively. The method solves the problems that in the prior art, non-differential treatment methodsfor chemical wastewater have high cost and unstable treatment effects. The method for quality classification and pipe connection of the chemical wastewater can effectively improve the wastewater treatment effect and achieve the wastewater treatment purpose of substantial reduction of toxic pollutants with economic stability.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a method for separating and taking over chemical waste water. Background technique [0002] With the development of our country's economy, our country's chemical industry is developing rapidly, and more and more chemical products are widely serving the national economy and people's lives. According to statistics, there are currently 25 categories of chemical industry in my country, with more than 30,000 varieties and an annual output of about 9700Kt. However, more and more chemical wastewater is produced in the process of producing chemical products. Chemical wastewater is wastewater produced in the production process of dyes, medicines, pesticides and other industries. It has high pollutant concentration, complex composition, high chroma, and high toxicity. And other characteristics, all have greater harm to the natural environment and human health. [0003] For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F1/72C02F1/70
CPCC02F1/70C02F1/72C02F3/12Y02W10/10
Inventor 李鹏章李爱民
Owner NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH & ENG RES INST
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