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Filter for waste water pretreatment

A pretreatment and filter technology, applied in water/sewage treatment, fixed filter element filter, water/sludge/sewage treatment, etc., can solve the problem of no membrane biological filter process filtration device, etc., to achieve easy manufacturing and Maintenance, good filtration, effect of good filtration performance

Active Publication Date: 2008-10-08
PURUIQI ENVIRONMENTAL ENG BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the membrane biofilter has strict requirements for pretreatment. In order to prevent the damage and clogging of the MBR membrane caused by larger particles and some fibers in the water, a sewage pretreatment filter must be installed before the membrane biofilter.
At present, there are many sewage pretreatment filtration devices, all of which have certain effects, but there is no special filtration device for membrane biological filter process.

Method used

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  • Filter for waste water pretreatment
  • Filter for waste water pretreatment
  • Filter for waste water pretreatment

Examples

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Embodiment 1

[0023] The wastewater pretreatment filter is of stainless steel structure, the housing 1 is 700mm high and 325mm in diameter, in which the straight cylinder 3 is 388mm high, and is sealed and confined with the upper pipe cap 9 and the lower pipe cap 4 through connectors and flanges. The lower pipe cap 4 is provided with a water inlet 21 and a slag discharge port 23, wherein the water inlet 21 is connected with the water inlet pipe 13, a water outlet 22 is provided in the middle of the straight cylinder 3, and a flushing water inlet 24 is provided on the upper portion of the upper pipe cap 9. A handle 17 is also provided on the upper tube cap 9 to facilitate the operation of the user.

[0024] A truncated truncated grille 12 is provided in the middle of the housing 1 with a height of 455 mm. The bottom of the grille 12 is fixed to the lower pipe cap 4 by a lower ring 10, and the upper portion is connected to a water distributor 16 by a ring plate 11. The grille adopts a stainless s...

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Abstract

The invention relates to the technical field of waste water treatment, in particular to a filter for waste water pretreatment, which consists essentially of a shell and a filter element. The filter can filter relatively large particles and fiber substances in waste water, carry out the pretreatment of waste water to protect a membrane reactor in a process of waste water treatment and prevent an MBR membrane from being damaged and blocked. The filter for waste water pretreatment of the invention has simple structure, is easy for manufacturing and maintenance and has good filtering effect.

Description

【Technical Field】 [0001] The invention belongs to the technical field of wastewater treatment. More specifically, the present invention relates to a filter for wastewater pretreatment. 【Background technique】 [0002] Membrane biological filter is a new type of reclaimed water production equipment developed in recent years. This equipment combines membrane separation technology and traditional sewage biological treatment technology to replace the traditional precipitation and filtration process with the high-efficiency separation of membranes, so that the activated sludge particles in the wastewater can be removed. And most of the microorganisms can be retained in the biological reaction tank. After the separation of the membrane, the clear liquid is drawn from the membrane filament by the self-priming pump, so a higher sludge concentration can be obtained in the reaction tank. Compared with traditional sewage treatment methods, it has a small footprint, stable effluent quality, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/35C02F1/00
Inventor 文剑平杨建州梁辉孟繁龙
Owner PURUIQI ENVIRONMENTAL ENG BEIJING