Sewage treatment device achieving automatic control function by monitoring N2O and control method

A technology of sewage treatment device and control method, which is applied in water treatment parameter control, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve the effect of reducing amplitude, improving effect and obvious effect.

Inactive Publication Date: 2016-04-13
HENAN NORMAL UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, by monitoring N 2 The change of O concentration can quickly reflect the fluctuation of the sewage treatment process, and then realize the precise adjustment of the sewage treatment process, and at the same time reduce the greenhouse gas N 2 The purpose of O generation is an automatic control method for sewage monitoring with great application value, however, there is no relevant report in this area at present

Method used

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  • Sewage treatment device achieving automatic control function by monitoring N2O and control method
  • Sewage treatment device achieving automatic control function by monitoring N2O and control method
  • Sewage treatment device achieving automatic control function by monitoring N2O and control method

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Embodiment 1

[0021] Taking the actual domestic wastewater treatment process discharged from a community as an example, the N 2 O automatic control of sewage treatment equipment such as figure 1 shown, adopted by monitoring N 2 O Automatically controlled sewage treatment operation methods such as Figure 2-3 As shown, the effective volume of the anaerobic treatment pool of the selected sewage treatment device is 10L, the effective volume of the anoxic treatment pool is 18L, the effective volume of the aerobic treatment pool is 50L, the effective volume of the sludge sedimentation tank is 20L, and the quality of the sewage influent is: COD concentration 300 -400mg / L, NH 4 + The concentration is 40-50mg / L, the concentration of TN is 47-52mg / L, the concentration of TP is 3-5mg / L, the sewage treatment capacity is 120L / d, and the inoculation sludge of the reactor is fresh activated sludge from the aerobic treatment pool of the sewage plant. The internal sludge concentration is maintained at ...

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Abstract

The invention discloses a sewage treatment device achieving the automatic control function by monitoring N2O and a control method. An anoxic treatment pond and an aerobiotic treatment pond are communicated through an internal reflux circulating pump and a pipeline, the bottom of the anoxic treatment pond is connected with a sodium acetate solution storage tank through a pipeline and a sodium acetate solution transmission pump, an anaerobic treatment pond and a sludge setting pond are communicated through an external reflux circulating pump and a pipeline, and an anoxic treatment pond N2O detection probe and an aerobiotic treatment pond N2O detection probe are arranged in the anoxic treatment pond and the aerobiotic treatment pond respectively. Automatic fast adjustment in the sewage treatment process is achieved by directly monitoring concentration changes of N2O, N2O generation is reduced substantially while the sewage treatment efficiency is improved, and the sewage treatment device is of great significance in achieving efficient automatic control and energy saving and emission reduction in the sewage treatment field.

Description

technical field [0001] The invention belongs to the technical field of automatic control of activated sludge treatment system, and in particular relates to a 2 O automatically controlled sewage treatment device and control method. Background technique [0002] With the rapid economic development and social progress, domestic sewage generated in human life and industrial production has increased year by year, resulting in a series of serious environmental problems such as eutrophication of water bodies, which seriously threaten people's living environment and quality of life. Therefore, there are higher requirements for sewage treatment. The key to optimizing the sewage treatment effect is to realize the precise control and rapid adjustment of the sewage treatment process, to quickly respond to the process changes caused by water quality fluctuations, and to take corresponding adjustment measures to finally achieve the purpose of improving the water discharge effect. At pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCC02F3/30C02F2209/005C02F2209/34
Inventor 闫旭陈小平郭东丽孙剑辉闫广轩薛载坤冯精兰苏现伐
Owner HENAN NORMAL UNIV
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