Fenton oxidation reaction device
A Fenton oxidation and reaction device technology, which is applied in the direction of oxidized water/sewage treatment, chemical instruments and methods, and water treatment of special compounds, can solve the problems of alkali consumption, low catalytic utilization rate of Fe, and low catalytic efficiency of hydrogen peroxide, etc., to achieve Reduce the amount of alkali added, increase the cost of treatment, improve the effect of catalytic effect and utilization rate
Active Publication Date: 2020-09-22
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Problems solved by technology
During the actual engineering application process of coking wastewater, the following technical shortcomings were found: (1) due to Fe 2+ (2) Since Fe is not reused, the catalytic utilization rate of Fe is low, and the catalytic efficiency of hydrogen peroxide is low; (3) coking wastewater contains a large amount of carbonate ions and iron ions, and when the pH is adjusted back, the consumption large amount of alkali
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[0065] The present invention will be further described below in conjunction with specific embodiments, and the advantages and characteristics of the present invention will become clearer along with the description. However, these embodiments are only exemplary and do not constitute any limitation to the scope of the present invention. Those skilled in the art should understand that the details and forms of the technical solutions of the present invention can be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the protection scope of the present invention.
[0066] Referring to the accompanying drawings, the Fenton oxidation reaction device of the present invention will be described in detail below.
[0067] Such as figure 1 , 2 , the Fenton oxidation reaction device for processing coking waste water of the present invention comprises: Fenton oxidation reaction tank 1 and degass...
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The invention provides a Fenton oxidation reaction device, which comprises a Fenton oxidation reaction tank for performing Fenton or Fenton-like oxidation reaction on wastewater, and is characterizedby further comprising a degassing tank for removing CO2 gas in water liquid after the Fenton or Fenton-like oxidation reaction is performed on the wastewater, wherein the degassing tank is connected to the outer side of the Fenton oxidation reaction tank in a sleeving manner. When the reaction device is used for treating coking wastewater biological effluent, the yield of hazardous waste iron mudduring coking wastewater biological effluent advanced treatment is remarkably reduced; therefore, the catalytic efficiency of hydrogen peroxide and the catalytic utilization rate of iron are improved,the content of carbonate ions and iron ions in the treated effluent is remarkably reduced, the use amount of alkali is remarkably reduced when the pH of the wastewater is adjusted back after Fenton oxidation treatment, and the treatment cost of the wastewater is remarkably reduced.
Description
technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a Fenton (Fenton) oxidation reaction device. Background technique [0002] Coking wastewater is a kind of toxic and refractory industrial wastewater. Its biological effluent still contains a large amount of refractory organic matter, and conventional coagulation cannot meet the existing discharge standards. The Fenton reaction is often used in the advanced treatment section of coking wastewater because it produces hydroxyl radicals with strong oxidizing ability and better coagulation effect. Most of the existing processes are homogeneous tank + reaction tank + alkali adjustment tank + sedimentation tank. The waste water is adjusted to acid first, and then enters the baffled reaction zone. Ferrous sulfate and hydrogen peroxide are added in sequence. After the reaction, the pH is adjusted back and enters the secondary sedimentation tank. The mud and wa...
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Login to View More IPC IPC(8): C02F9/04C02F1/72C02F101/10C02F101/30
CPCC02F1/20C02F1/722C02F1/725C02F2101/10C02F2101/30C02F2305/026
Inventor 杨敏韩小刚高迎新
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI