Advanced Treatment Technology of High Concentration Organic Wastewater
A technology for organic wastewater and advanced treatment, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. The problem of poor effect, etc., can achieve the effect of promoting chemical oxidation reaction and mass transfer efficiency, reducing chemical sludge production, and improving removal rate.
Active Publication Date: 2016-08-03
SHANGHAI SAFBON WATER SERVICE CO LTD
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Problems solved by technology
[0006] In order to solve the problems existing in the prior art, such as high initial cost or high operating cost, poor treatment effect, too much sludge output, and inconvenient cleaning, the present invention provides a new advanced treatment process for high-concentration organic wastewater
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[0021] The present invention will be further described below in conjunction with specific embodiments. It should be understood that the following examples are only used to illustrate the present invention but not to limit the scope of the present invention.
[0022] like figure 1 Shown, the present invention relates to a kind of technology of advanced treatment of high-concentration organic waste water, comprises the steps:
[0023] 1) Transport the organic wastewater to the intermediate pool;
[0024] The organic wastewater here is the biologically treated effluent, specifically, it is the effluent of the bio-alcohol process wastewater that has been biologically treated, so the BOD / COD ratio of the wastewater is already quite low. To further reduce the COD value, it is necessary to use advanced processing.
[0025] 2) Use a pump to transport the organic waste water in the intermediate pool to the fluidized bed reaction tank for chemical oxidation treatment to form Fe 3+ ;...
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The invention provides a novel advanced treatment process for high concentration organic wastewater, which aims at solving the problems in the prior art that the primary cost or the operation cost is too high, the treatment effect is poor, the sludge is over generated. The advanced treatment process has the advantages that the traditional Fenton oxidation method is improved drastically by a fluidization bed Fenton treatment technology, an electric field or crystallization technology is used for improving the treatment effect and lowering the chemical sludge yield, and most of ferric iron generated by a Fenton method through a fluidization bed manner can be crystallized or precipitated so as to be coated on a monomer surface of the fluidization bed. An iron oxide formed on the monomer surface has a heterocatalysis effect, and the fluidization bed manner also promotes the chemical oxidation reaction and mass transportation efficiency, so that the COD (chemical oxygen demand) removal rate is improved.
Description
technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a process for advanced treatment of high-concentration and high-concentration organic waste water. Background technique [0002] At present, there are many industrial wastewater treatment plants in China, which need to add advanced wastewater treatment units to meet the discharge water standard in 2007. The advanced wastewater treatment technologies that have been developed so far include ozone oxidation, activated carbon adsorption, membrane separation, and wet oxidation. And fluidized bed Fenton oxidation method, etc., most of the methods have the problem of high initial cost or operating cost or cannot meet the requirements at all, so it is difficult to be accepted by the industry. [0003] Compared with other advanced treatment methods, Fenton chemical oxidation method and its improved method have the advantages of low investment cost, high tolerance to water ...
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IPC IPC(8): C02F9/14
Inventor 张春霖仝芳轩周正仙
Owner SHANGHAI SAFBON WATER SERVICE CO LTD