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Partial-reflux pressurized and aerated type plasma sewage treatment device

A plasma and pressurization device technology, which is applied in the field of plasma advanced oxidation sewage treatment, can solve the problems that the low-temperature plasma treatment efficiency and discharge distance cannot be further improved, the reactor cannot be uniformly aerated, and the type of aeration can not be changed. To achieve the effects of tiny bubbles, increased contact area, and uniform discharge

Active Publication Date: 2014-12-24
NANJING UNIV
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Problems solved by technology

[0004] The existing plasma reaction is generally directly aerated in the reactor, which cannot achieve uniform aeration in the reactor, and the aeration type is single, and the aeration type cannot be changed according to different types of sewage and effluent requirements, and the low temperature cannot be further improved. Plasma treatment efficiency and discharge distance

Method used

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  • Partial-reflux pressurized and aerated type plasma sewage treatment device

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Embodiment

[0022] Embodiment: The water quality of TAIC production wastewater from a certain TAIC manufacturer in Jiangsu is shown in the following table:

[0023] pH COD (mg / L) salinity TAIC (mg / L) Ammonia nitrogen (mg / L) 3 25440 3.2％ 1500 278.93

[0024] [0024] Reaction parameters: gas tank gas: air, pressure dissolved gas tank pressure: 0.2MP, plasma reactor residence time: 120min, reflux ratio 1.0.

[0025] The pH of the waste water after the above treatment is 5.0, COD4500mg / L, TAIC300mg / L. After the subsequent biochemical system treatment, the COD is below 500mg / L, which can reach the standard stably and effectively.

[0026] The biochemical treatment device is an existing consistent conventional device, including anaerobic tower, primary biochemical tank, secondary biochemical tank, coagulation sedimentation tank and sand filter.

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Abstract

The invention discloses a partial-reflux pressurized and aerated type plasma sewage treatment device. The device comprises a refluxing and pressurizing device and a plasma reactor. The device has the advantages of a wide application range, high treatment efficiency, low equipment cost, low operation cost, cleanliness, low price, stability in operation, and the like, can be applied to treating various degradation-resistant wastewater in a present environment, also can be used for solving the problem that the ammonia nitrogen content is increased after the wastewater is treated by a plasma technology, can become indispensable main force in sewage treatment and can be applied to treating various pollutant fields.

Description

Technical field [0001] The present invention is the field of high -grade sewage treatment in plasma, and it involves a partial part of the reflux compression aerated aerated plasma sewage treatment device. Background technique [0002] With the continuous development of the industrial economy, environmental problems have become increasingly prominent and have become the focus of attention.The water environment pollution brought about by various industrial production is getting worse and the composition in sewage is becoming increasingly complicated, which has brought great challenges to sewage treatment technology.The increasingly prominent problem of water resources and the gradual attention of the country's environmental issues have also made the environmental protection departments put forward higher requirements for sewage treatment.With the continuous improvement of people and the emphasis on the overall protection of the environment, the secondary pollution generated during...

Claims

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Application Information

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IPC IPC(8): C02F1/46C02F1/467
Inventor 孙亚兵李舜斌张梦怡何东
Owner NANJING UNIV
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