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Residual chlorine control method and device for chlorine dioxide disinfection

A chlorine dioxide and control device technology, applied in the direction of chlorine dioxide, chlorine oxide, chemical instruments and methods, etc., can solve the problems of difficult to reuse activated carbon, large amount of activated carbon, secondary pollution of solid waste, etc., to save the use of chemicals amount, reduce secondary pollution, and reduce the effect of usage

Pending Publication Date: 2021-03-02
南京博知源环境科技有限公司
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AI Technical Summary

Problems solved by technology

This method has a good adsorption effect, but the amount of activated carbon is large, and the treatment cost is high, and the waste activated carbon replaced after adsorption saturation is difficult to reuse, the treatment cost is high, and it is easy to cause secondary pollution of solid waste

Method used

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  • Residual chlorine control method and device for chlorine dioxide disinfection

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Embodiment

[0025]A medical wastewater treatment station originally used chlorine dioxide for disinfection and then used sodium bisulfite or sodium sulfite for dechlorination treatment to meet the standard and then discharged. During the treatment process, the amount of chemicals used is large, the operation cost is high, the dechlorination effect is unstable, and the residual chlorine often exceeds the standard. After the device of the present invention is used to replace the original chlorine dioxide disinfection system, the medical waste water is disinfected in the disinfection pool, and the chlorine dioxide disinfectant produced by the chlorine dioxide generator circulates into the waste water through the ejector to react and perform disinfection. Residual chlorine detection and setting on the controller to control the range of residual chlorine is 0.3-0.5mg / L. When the detected value of residual chlorine concentration in the circulation pipeline is lower than 0.3 mg / L, the residual ch...

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Abstract

The invention discloses a residual chlorine control method and device for chlorine dioxide disinfection. The device comprises a chlorine dioxide generator, a residual chlorine monitoring and controlling apparatus, a residual chlorine monitoring sensor and a disinfection pool, the left end and the right end of the chlorine dioxide generator are respectively connected with a metering pump, and the two metering pumps are connected with a sodium chlorate dispensing barrel and a hydrochloric acid dispensing barrel correspondingly; a chemical outlet pipe of the chlorine dioxide generator is fixedlyconnected with a side inlet of an ejector, an outlet of the ejector is connected into the disinfection pool, a suction pump is arranged on a water outlet pipe of the disinfection pool, one pipeline ofthe suction pump is connected to a water outlet valve, and the other pipeline of the suction pump is connected to the front end of the ejector; the device has the beneficial effects that the residualchlorine content of the effluent can be automatically monitored and controlled, meanwhile, the use amount of chemicals is reduced, and the labor cost and the time cost are reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a residual chlorine control method and device for chlorine dioxide disinfection. Background technique [0002] The use of chlorine dioxide to disinfect tap water, sewage and other water bodies is currently a commonly used water disinfection method. The unique unsaturated electronic structure of chlorine dioxide has a very strong oxidation effect. It attacks the pollutant atomic groups containing electrons in the water body, plunders their electrons, and causes them to lose their activity, so as to achieve the purpose of killing microorganisms in water. . At the same time, chlorine dioxide also has a deodorizing effect, and it can be converted into other odorless substances through a dehydration reaction with the odorous substance group. Chlorine dioxide can kill microorganisms without reacting with other substances to produce new toxic and harmful substances, reducing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/50C01B11/02
CPCC02F1/50C01B11/023C02F2303/04
Inventor 金玲玲王永叶星
Owner 南京博知源环境科技有限公司
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