Tubular dynamic membrane reactor for biological catalytic oxidation
A technology of bioreactor and biological contact, which is applied in the direction of chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems of membrane filtration unit membrane pollution, etc., to increase the processing capacity and reduce the cost of membrane components , The effect of extending the service life
Inactive Publication Date: 2006-06-21
BEIJING HUIHENG ENVIRONMENTAL PROTECTION ENG CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the technical problem of the above membrane bioreactor membrane filtration unit membrane pollution, invent a kind of hollow fiber tube as the filter support layer, utilize a certain thickness filter cake layer as the dynamic membrane filter of the active filter layer, and for To control the thickness of the dynamic filter layer, the bioreactor unit adopts a contact oxidation bioreactor loaded with packing material
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[0018] Will contain COD 50 ~ 327mg / L, BOD 5 Domestic sewage with 40-100mg / L and SS of 20-50mg / L enters the biological contact oxide film bioreactor, and the COD value of the system effluent varies between 30-100mg / L, generally stable below 50mg / L, BOD 5 The value is below 10mg / L, the ammonia nitrogen is stable below 10mg / L, the turbidity is stable below 5NUT, and the water quality can reach the second-level standard of the national "Urban Sewage Recycling and Utilization of Urban Miscellaneous Water Quality Standards" (GB18918-2002).
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Abstract
A biological exposure oxidation tube dynamic membrane biological reactor, mainly comprising biological exposure oxidation reacting tank, aerated conduit, baffle board, membrane box, membrane unit and effusion meter, with characteristics of being: the biological exposure oxidation reactor employed by biological treating unit is characterized by the high load capacity, low sludge production, no activated sludge bulking and simple and convenient operating management. There is no reflux valve between the membrane separating unit and biological treating unit, no sucking pump for water outletting, and so the construction and operation cost is reduced. The membrane is characterized by wide source of raw material, low cost, easy- to- produce and low production cost. The reactor is characterized by the no membrane pollution problem, easy- to -clean, long durability, convenient constructing, simple operation and caring, low energy consumption and large quantity of water production.
Description
technical field [0001] The invention belongs to the technical field of membrane bioreactors, in particular to a split membrane bioreactor combining biological contact oxidation water treatment technology and biological dynamic membrane separation technology. Background technique [0002] Membrane bioreactor is a technology that combines membrane separation technology and biological sewage treatment technology to treat sewage. Compared with traditional biological sewage treatment technology, it has a small footprint, centralized equipment, modularization, and upgradeability. Advantages such as potential are paid more and more attention worldwide (Tom Stephenson, Simon Judd, Bruce Jefferson, Keith Brindle. Membrane Bioreaators for wastewater Treatment), and are considered to be one of the most promising sewage treatment and reuse technologies. [0003] The biological treatment unit of the known membrane bioreactor mostly adopts the activated sludge process, and the membrane tr...
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IPC IPC(8): C02F3/02C02F3/10
CPCY02W10/10
Inventor 樊耀波董春松朱小龙李刚吴琳琳
Owner BEIJING HUIHENG ENVIRONMENTAL PROTECTION ENG CO LTD