Method for advanced treatment of ammonia nitrogen sewage

A technology for advanced treatment and sewage, applied in the field of advanced treatment of ammonia nitrogen sewage, can solve problems such as no public reports and inability to discharge sewage up to standard, and achieve the effect of improving treatment capacity and improving capacity.

Active Publication Date: 2008-05-07
ASIA PACIFIC ENVIRONMENTAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Although there are many treatment methods for ammonia nitrogen sewage, physical, chemical or biological methods alone cannot make the sewage discharge up to standard
[0011] Through document retrieval, do not see the public report identical with the present invention

Method used

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  • Method for advanced treatment of ammonia nitrogen sewage

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] a. Ammonia nitrogen sewage is collected into the regulating pool, and multiple submersible push-flow mixers are installed in the regulating pool. The hydraulic retention time of the sewage in the regulating pool is 8 hours, which plays a good role in regulating the water quality and quantity of the sewage;

[0036] b. Then use the submersible sewage pump to lift the sewage to the biochemical pool. The biochemical pool is divided into an anaerobic pool with added biochemical plates, partition walls and biochemical balls and an aerobic pool with biochemical balls added. Microbial preparations are added to the aerobic pool (addition amount 0.3kg / 10000m 3 ), degrade COD, BOD, NH in sewage 3 -N and other pollutants; add microbial preparations in the anaerobic pool (addition amount 0.2kg / 10000m 3 ) and carbon source methanol (addition amount 100kg / 10000m 3 ) for denitrification, the addition of microbial preparations and carbon source methanol is based on NH 3 -N, dependin...

Embodiment 2

[0041] Basically with embodiment 1. The difference is: adding microbial preparations in the aerobic pool (addition amount 0.4kg / 10000m 3 ), degrade COD, BOD, NH in sewage 3 -N and other pollutants; add microbial preparations in the anaerobic pool (addition amount 0.3kg / 10000m 3 ) and no carbon source methanol was added to the denitrification anaerobic tank without adding carbon source methanol.

[0042] Example 2:

[0043] Basically with embodiment 1. The difference is: add microbial preparations in the aerobic pool (addition amount 0.5kg / 10000m 3 ), degrade COD, BOD, NH in sewage 3 -N and other pollutants; add microbial preparations in the anaerobic pool (addition amount 0.4kg / 10000m 3 ) and carbon source methanol (added amount 50kg / 10000m 3 ) does not add carbon source methanol to the denitrification anaerobic tank.

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Abstract

The invention relates to a method for deep treatment of ammonian sewage, and the method belongs to the technical field of the environment protection. The invention conducts integration and innovation based on the traditional ammonian sewage treatment method and combines the physical, chemical and biological treatments, namely, an improved oxygen-poor and aerobic technique, film separation and biological treatment are adopted in the treatment of the eutrophic water which is low in BOD5, and then the eutrophic water is discharged or reused after the treatment under the standard. The invention has the advantages of low capital construction and work, good water treatment, no secondary pollution and state discharge standard conformity of the discharged water, etc., thereby being widely used in the treatment of the eutrophic water with the density of the BOD5 being 48.5mg / L.

Description

Technical field: [0001] The invention relates to a method for advanced treatment of ammonia nitrogen sewage, which belongs to the technical field of environmental protection. Background technique: [0002] At present, there are many methods for treating ammonia nitrogen sewage at home and abroad, mainly in the following ways: [0003] Biological treatment method: [0004] At present, the more mature treatment method used in the actual treatment of ammonia nitrogen sewage at home and abroad is the traditional pre-denitrification biological denitrification, such as A / O, A 2 / O process, etc., can remove nitrogen in sewage to a certain extent. The basic principle is to first convert the NH in the sewage 3 -N converted to NO 2 - , then oxidized to NO 3 - , then set the NO 3 - converted to nitrogen. A / O and A 2 Both processes of / O are developed on the basis of traditional activated sludge. Compared with traditional activated sludge, they can not only reduce BOD in wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/44C02F3/30C02F1/50C02F1/52
CPCY02W10/37
Inventor 曾子平刘应隆
Owner ASIA PACIFIC ENVIRONMENTAL CORP
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