Device and method for treating ship sewage by combining modified non-woven fabric with circulating activated sludge method

An activated sludge method and combined treatment technology, which is applied to biological treatment devices, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problems of high operating cost and high membrane cost, and improve the cost of high cost Effect

Pending Publication Date: 2018-11-30
HARBIN ENG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a device and method for combined treatment of ship sewage by modified non-woven fabric and circulating activated sludge method in order to improve the problems of high membrane cost and high operating cost in the traditional membrane bioreactor process

Method used

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  • Device and method for treating ship sewage by combining modified non-woven fabric with circulating activated sludge method

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] The invention provides a ship sewage treatment device combined with modified non-woven fabric and circulating activated sludge method. The main devices include: water inlet pump 1, return pump 2, aeration pump 3, drainage pump 4, agitator 5, Biological selection zone 6, pre-reaction zone 7, main reaction zone 8, aeration head 9, modified non-woven filter assembly 10.

[0037] The invention provides a ship sewage treatment device combined with modified non-woven fabric and circulating activated sludge process. The main reaction pool is provided with a biological selection area 6, a pre-reaction area 7 and a main reaction area 8 connected in sequence. Sewage flows into the biological selection zone 6 through the water inlet pipe, and then flows from the biological selection zone 6 to the pre-reaction zone 7 in an overflow manner....

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Abstract

The invention provides a device and method for treating ship sewage by combining a modified non-woven fabric with a circulating activated sludge method. The device comprises a water inlet pump, a backflow pump, an aeration pump, a drainage pump, a biological selection region, a pre-reaction region, a main reaction region and aeration heads, and further comprises a modified non-woven fabric filtering component, the modified non-woven fabric filtering assembly is a plate frame type assembly and is obliquely arranged at the rear section of the main reaction region; the modified non-woven fabric is prepared by taking polypropylene non-woven fabric with the pore diameter of 30 microns as a base film, adopting a surface coating method and using glutaraldehyde cross-linked polyvinyl alcohol for coating the base film; the circulating activated sludge method is combined with a membrane separation technology, and the modified non-woven fabric film is used as a substitute film component, good andstable treatment effects on the domestic sewage of the ship are achieved, the structure is simple, the equipment is durable, maintenance is convenient, and operation is automatic. The non-woven fabric film can effectively reduce the cost of the film assembly, and the film pollution resistance is improved after modification and is very suitable for ship domestic sewage treatment.

Description

technical field [0001] The invention relates to a device and method for ship sewage, in particular to a device and method for combined treatment of ship sewage by modified non-woven fabric and circulating activated sludge method, belonging to the field of sewage treatment. Background technique [0002] According to the definition of ship domestic sewage by the International Maritime Organization (IMO), ship domestic sewage refers to excreta and other wastes discharged from urinals and toilets in any form; medical rooms including medical rooms, etc. effluents from washing, face washing, bathing and such spaces; effluents from spaces where animals are kept on board; and other effluents mixed with any of the above forms of drainage. Ship domestic sewage not only has some similarities with ordinary urban domestic sewage, but also has obvious differences between ship domestic sewage and ordinary urban domestic sewage due to the particularity of the environment. The main differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/1268C02F2203/004Y02W10/10
Inventor 王春丽兰天宇施悦梁研潘帅勇米海蓉官涤
Owner HARBIN ENG UNIV
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