CN203890119U - Immobilized activated sludge and MBR (membrane bioreactor) combined wastewater treatment pond - Google Patents

Abstract

The utility model discloses a sewage treatment pool co-constructed by immobilized activated sludge and MBR, which comprises a pool body, immobilized activated sludge boards, membrane components, and aeration pipes. The pool body is provided with a water inlet pipe and a water inlet pipe The bottom is connected to the water distribution pipe, and an overflow wall is set in the middle of the pool body. The height of the overflow wall is lower than the height of the pool wall. A membrane module is installed between the outlet and the water outlet, the membrane module adopts a suction type water outlet, and the thickness of the immobilized activated sludge plate is 5cm. The utility model has the following advantages: small occupied space, little membrane pollution and low backwashing cost.

Description

A kind of immobilized activated sludge and MBR to build a sewage treatment pool

technical field

The utility model relates to the field of sewage treatment, in particular to an MBR sewage treatment pool.

Background technique

In the sewage treatment process, the activated sludge and the membrane pool are often built separately, which takes up a lot of space. Some sewage treatment plants adopt a joint construction method, but after the joint construction, the activated sludge is in a suspended state and the membrane is seriously polluted. The cost of backwashing is increased and the service life of the membrane is reduced. At present, immobilized activated sludge technology is gradually attracting attention. The invention patent 200910194651.8 was published on February 3, 2010, which discloses a preparation method of immobilized activated sludge. Immobilized activated sludge can reduce membrane pollution, and has great potential for immobilized activated sludge to treat sewage in future sewage treatment.

Contents of the invention

The purpose of the utility model is to provide immobilized activated sludge and MBR to jointly build a sewage treatment pool. The device can effectively reduce the floor area of the sewage treatment plant, reduce membrane pollution and prolong the service life of the membrane. In order to achieve the above object, the utility model adopts the following technical solutions:

A sewage treatment pool co-constructed by immobilized activated sludge and MBR, including a pool body, immobilized activated sludge panels, membrane modules, and aeration pipes. The pool body is provided with a water inlet pipe, and the bottom of the water inlet pipe is connected to a water distribution pipe. An overflow wall is set in the middle of the pool body, the height of the overflow wall is lower than the height of the pool wall, and an aeration pipe is installed at the bottom of the pool body between the overflow wall and the water inlet. A membrane module is installed between the wall and the water outlet, the membrane module adopts suction water outlet, and the thickness of the immobilized activated sludge plate is 5cm.

The utility model has the following advantages: small occupied space, little membrane pollution and low backwashing cost.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among them, 1. Pool body; 2. Overflow wall; 3. Membrane module; 4. Immobilized activated sludge board; 5. Water distribution pipe; 6. Outlet pipe; 7. Aeration pipe.

Detailed ways

The utility model is described in further detail below with accompanying drawings and specific embodiments.

Fig. 1 is a structural representation of the utility model.

A sewage treatment pool co-constructed by immobilized activated sludge and MBR, comprising a pool body 1, an immobilized activated sludge plate 4, a membrane module 3, and an aeration pipe 7. The pool body 1 is provided with a water inlet pipe, and the water inlet pipe The bottom is connected to the water distribution pipe 5, the overflow wall 2 is set in the middle of the pool body 1, the height of the overflow wall 2 is lower than the height of the pool wall, and the pool body 1 is between the overflow wall 2 and the water inlet The aeration pipe 7 is installed at the bottom of the room, and the membrane module 3 is installed between the overflow wall 2 and the water outlet. The membrane module 3 adopts suction water outlet, and the thickness of the immobilized activated sludge plate 4 is 5cm. .

After the utility model is put into use, the sewage consumes organic matter under the action of aerobic respiration of active microorganisms in the immobilized activated sludge plate between the water inlet end and the overflow wall, and the treated water overflows to the overflow wall through the overflow wall. In the pool body behind the flow wall, the filtered water is pumped out through biofilm filtration.

Claims (1)

1. A kind of immobilized activated sludge and MBR jointly build sewage treatment pond, comprise pond body, immobilized activated sludge board, membrane assembly, aeration pipe, it is characterized in that, described pond body is provided with water inlet pipe, enters The bottom of the water pipe is connected to the water distribution pipe. An overflow wall is set in the middle of the pool body. The height of the overflow wall is lower than the height of the pool wall. In the air pipe, a membrane module is installed between the overflow wall and the water outlet. The membrane module adopts suction water outlet, and the thickness of the immobilized activated sludge plate is 5cm.