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MBBR pretreatment method and system for high-ammonia nitrogen micro-polluted raw water

A high-ammonia-nitrogen micro-pretreatment technology, applied in the field of drinking water treatment, achieves the effect of less floor space, less head loss and low energy consumption

Inactive Publication Date: 2014-07-23
TONGJI UNIV
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Problems solved by technology

[0006] MBBR is a general technical term, which is the abbreviation of Moving-bed Biofilm Reactor (moving bed biofilm reactor), which mainly solves the problem of organic matter and ammonia nitrogen removal in slightly polluted raw water

Method used

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  • MBBR pretreatment method and system for high-ammonia nitrogen micro-polluted raw water
  • MBBR pretreatment method and system for high-ammonia nitrogen micro-polluted raw water
  • MBBR pretreatment method and system for high-ammonia nitrogen micro-polluted raw water

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Embodiment Construction

[0057] The present invention is further described below in conjunction with embodiment and accompanying drawing.

[0058] Figure 1A and Figure 1B Shown is a pretreatment system of a moving bed biofilm reactor with high ammonia nitrogen slightly polluted raw water, the system includes an inlet pump 2, a moving bed biofilm reactor 20 and a blower 10, and the inside of the moving bed biofilm reactor 20 A separation baffle 13 and a diversion wall 15 are provided. The moving bed biofilm reactor is equipped with a separation baffle, so that in the case of aeration in the ascending zone, there are two different flow directions of ascending and reflux. The bottom of the diversion wall 15 is provided with a screen.

[0059] The reaction tank of the moving bed biofilm reactor 20 is a cuboid, and the water inlet channel 4 and the water outlet channel 7 are respectively arranged on both sides of the top of the moving bed type biofilm reactor 20 . The water inlet pump 2 communicates w...

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Abstract

The invention belongs to the technical field of drinking water treatment, and relates to a moving bed biofilm reactor pretreatment method and system for high-ammonia nitrogen micro-polluted raw water. The system comprises a feed pump (2), a moving bed biofilm reactor (20) and an air blower (10), wherein a separation baffle (13) and a guide wall (15) are arranged in the moving bed biofilm reactor (20). The system has the advantages that separation baffle is arranged in the moving bed biofilm reactor, so that the state of fluidization in a whole tank is intensified, and microorganisms are facilitated to purity raw water; the system is also provided with a yielding water settling zone so as to facilitate the discharge of excess sludge; a reaction tank is compact in structure, the occupied area is small, the energy consumption is low, the system is easy to operate, maintain and manage, and the investment and operating cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of drinking water treatment, and relates to a method and system for pretreatment of high ammonia nitrogen slightly polluted raw water by a moving bed biofilm reactor (MBBR). Background technique [0002] With the rapid development of industrial and agricultural production, a large amount of industrial wastewater and domestic sewage containing various toxic and harmful substances are discharged into natural water bodies without proper treatment, directly or indirectly polluting urban water supply sources. At present, there are common problems in slightly polluted raw water, such as increased dissolved organic matter, high concentration of ammonia nitrogen, peculiar smell of water body, increased chroma, and excessive algal blooms. Among them, organic matter and ammonia nitrogen are the main pollutants in raw water. According to their source, organic pollutants in raw water can be divided into two categories: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 王亚宜宋成康秦健张双福赵伟
Owner TONGJI UNIV
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