Integrated reactor and method for removing ammonia nitrogen in drinking water

A reactor and drinking water technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of easy penetration of powdered activated carbon, complicated management, physical damage of membrane surface, etc. problems, to achieve the effect of low operating cost, convenient operation and management, and small head loss

Active Publication Date: 2011-12-07
清华苏州环境创新研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method still has the following defects: 1. The powdered activated carbon will inevitably be discharged during the sludge discharge process of the membrane tank. How to ensure the normal sludge discharge conditions of the membrane tank and ensure the sludge age of the powdered activated carbon on this premise, this It is difficult to effectively control the process operation, and the adaptability to the process operation of raw water with different turbidity is poor, and the management is complicated; 2. The

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  • Integrated reactor and method for removing ammonia nitrogen in drinking water
  • Integrated reactor and method for removing ammonia nitrogen in drinking water
  • Integrated reactor and method for removing ammonia nitrogen in drinking water

Examples

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Embodiment 1

[0052] See figure 1 The integrated reactor for removing ammonia nitrogen in drinking water that realizes microbial nitrification and ultrafiltration separation process includes a biological nitrification zone unit and an ultrafiltration membrane filtration zone unit; the biological nitrification zone unit and the ultrafiltration membrane filtration The zone units are set in the same reaction pool.

[0053] The biological nitrification zone unit includes a biological filler 4 for microbial film formation, an aeration device 6 and a sludge tank 7 .

[0054] A perforated plate 2 is installed in the reaction pool, and the top of the space formed between one side of the perforated plate 2 and the wall of the reaction pool is set as an opening; on the other side of the perforated plate 2 A bracket filled with the biological filler 4 is installed on the side, an aeration device 6 and a sludge tank 7 are installed under the biological filler 4, and a sludge discharge pipe 8 is instal...

Embodiment 2

[0066] See figure 2 , the design and establishment of an integrated reactor for the removal of ammonia nitrogen in drinking water for the realization of microbial nitrification and ultrafiltration separation processes basically as in Example 1, except that the support and ultrafiltration membrane assembly filled with the biological filler are respectively four.

[0067] The installation method of the support filled with the biological filler and the ultrafiltration membrane module is to adopt the installation method of interlacing and mixing with each other, and adjacent to the perforated plate 2 is the bracket filled with the biological filler. stand.

[0068] The method for removing ammonia nitrogen in drinking water by using the above-mentioned integrated reactor is as follows: after the water to be treated enters the steady flow area 1 of the integrated reactor from the water inlet, the water enters the reaction area 3 evenly through the perforated plate 2, and then flow...

Embodiment 3

[0073] See figure 1 The integrated reactor for removing ammonia nitrogen in drinking water that realizes microbial nitrification and ultrafiltration separation process includes a biological nitrification zone unit and an ultrafiltration membrane filtration zone unit; the biological nitrification zone unit and the ultrafiltration membrane filtration The zone units are set in the same reaction pool.

[0074] The biological nitrification zone unit includes a biological filler 4 for microbial film formation, an aeration device 6 and a sludge tank 7 .

[0075]A perforated plate 2 is installed in the reaction pool, and the top of the space formed between one side of the perforated plate 2 and the wall of the reaction pool is set as an opening; on the other side of the perforated plate 2 A bracket filled with the biological filler 4 is installed on the side, an aeration device 6 and a sludge tank 7 are installed under the biological filler 4, and a sludge discharge pipe 8 is install...

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Abstract

The invention relates to a reactor and method for removing ammonia nitrogen from drinking water. The integrated reactor for removing the ammonia nitrogen from the drinking water in microorganism nitration and ultrafiltration separation processes comprises a biological nitrification area unit and an ultrafiltration membrane filtration area unit, wherein the biological nitrification area unit and the ultrafiltration membrane filtration area unit are arranged in the same reaction pond. The method comprises the following steps of: removing ammonia nitrogen under the action of microorganisms growing on the surface of a biological filling and removing a part of small molecular organic matters; intercepting bacteria and microorganism membranes and the like under the filtering action of an ultrafiltration membrane to ensure the microorganism safety; providing nitrogen oxygen needed by the microorganisms by using an aeration device and scrubbing attachments on an ultrafiltration membrane filament under the air shearing action; and introducing large-density particles, falling microorganism membranes and the like into a sludge groove under the action of gravity, and discharging through a sludge discharging pipe. The reactor and the method can be used for treating drinking water of a water source which is polluted by ammonia nitrogen, and can be used for removing ammonia nitrogen from urban sewage and recycled water.

Description

technical field [0001] The invention relates to a purification method for drinking water, in particular to an integrated reactor for removing ammonia nitrogen in drinking water, and a method for strengthening the nitrification of microorganisms to remove ammonia nitrogen in drinking water. Background technique [0002] Drinking water sources in many cities in my country have persistent or seasonal ammonia nitrogen exceeding the standard. Conventional drinking water treatment processes, namely coagulation, sedimentation, filtration and disinfection processes, have almost no ability to remove ammonia nitrogen. On the other hand, the latest national drinking water standard (GB5749-2006) will be enforced in 2012. How to ensure that the ammonia nitrogen in the factory water reaches the standard is a problem faced by many water plants. [0003] The drinking water advanced treatment process using ozone / activated carbon and ozone / biologically activated carbon can better solve ammon...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 曲久辉刘锐平刘会娟俞文正刘峰田川
Owner 清华苏州环境创新研究院
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