Upflow blanket filter (UBF) anaerobic reactor with filter layer at top and for treating chemical wastewater

An anaerobic reactor and chemical wastewater technology, applied in anaerobic digestion treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as complex equipment, shorten the start-up period, reduce sludge loss, The effect of improving mass transfer efficiency

Inactive Publication Date: 2012-09-19
苏州苏水环境工程有限公司
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Problems solved by technology

[0007]The problem to be solved by the present invention is to overcome the complex problem of processing industrial organic wastewater process equipment in the prior art, and provide a kind of suitable treatment of high salt, refractory, low UBF anaerobic reactor for suspended solids chemical wastewater

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  • Upflow blanket filter (UBF) anaerobic reactor with filter layer at top and for treating chemical wastewater
  • Upflow blanket filter (UBF) anaerobic reactor with filter layer at top and for treating chemical wastewater

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Embodiment Construction

[0029] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these examples are used to illustrate the present invention and not to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not indicated are usually the conditions in routine experiments.

[0030] Such as figure 1 The UBF anaerobic reactor for treating chemical wastewater with a filter layer on the top of a preferred embodiment of the present invention shown includes reactor 2, water distribution device 1, sludge expanded bed 3, three-phase separator 4, and effluent collection device and biogas circulation device, a three-phase separator 4 is installed in the middle of the reactor 2, the lower part of the three-phase separator 4 is a sludge expanded bed 3, and the upper part of the three-phase...

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Abstract

The invention discloses an upflow blanket filter (UBF) anaerobic reactor with a filter layer on the top and for treating chemical wastewater. The UBF anaerobic reactor comprises a reactor, a water distribution device, a sludge expanded bed, a three-phase separator, an effluent collecting device and a methane circulating device and is characterized in that the three-phase separator is arranged in the middle of the reactor; the sludge expanded bed is arranged at the lower part of the three-phase separator; a biological filling region is arranged at the upper part of the three-phase separator; the biological filling region comprises filling and a biological membrane; and the biological membrane is formed by attaching anaerobic microorganisms to the surface of the filling. The UBF anaerobic reactor is suitable for treating the chemical wastewater which has high salt content and low suspended matter content and is difficult to degrade; and gas lift internal circulation is adopted, namely methane generated in the reactor is collected by the three-phase separator and internal circulation is realized by using the methane as the lifting powder and without external mechanical power.

Description

[0001] technical field [0002] The invention relates to environmental protection equipment, in particular to an anaerobic bioreactor, in particular to a UBF anaerobic reactor with a filter layer on the top for treating chemical wastewater. [0003] Background technique [0004] Some chemical wastewater usually contains benzene and its derivatives, cyclic or heterocyclic hydrocarbons and their derivatives, with a salt content as high as 2-10%. It is distilled wastewater with low suspended solids, high temperature, and very simple nutrients. , the BOD / COD ratio is usually around 0.1~0.3, the wastewater has good water solubility, and it is difficult to react with PAC and PAM to form precipitates, which are difficult to remove by Fenton test or other advanced oxidation processes, and the operating components are very high. This type of chemical industry Wastewater belongs to organic chemical wastewater that is difficult to degrade. [0005] Choose anaerobic wastewater treatme...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F3/34
CPCY02E50/30
Inventor 徐富
Owner 苏州苏水环境工程有限公司
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