Treatment process of high ammonia-nitrogen organic wastewater

A technology of organic wastewater and treatment process, applied in multi-stage water treatment, degassed water/sewage treatment, neutralized water/sewage treatment, etc. Achieve the effect of improving purity, overcoming resistance loss and reducing impurities

Inactive Publication Date: 2015-01-28
NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

The currently applied biochemical process, stripping process, and biogas treatment process only consider the characteristics of their own processes, and do not comprehensively consider the comprehensive treatment of this type of wastewater, which has the disadvantages of large waste of materials and large energy consumption, and is easy to blow off. Fouling and high cost problems

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  • Treatment process of high ammonia-nitrogen organic wastewater
  • Treatment process of high ammonia-nitrogen organic wastewater

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Embodiment Construction

[0028] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0029] A treatment process for high ammonia nitrogen organic wastewater, including an anaerobic section, a stripping section, an absorption device, an aerobic section, and a biogas treatment section,

[0030] (1) Wastewater containing high ammonia nitrogen concentration is treated in the anaerobic section, then enters the blowing section through the anaerobic outlet pipeline for treatment, and before the anaerobic outlet pipeline enters the blowoff section, lye is added through the lye pipeline to adjust the pH value;

[0031] (2) The ammonia nitrogen stripping section uses the biogas generated in the anaer...

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Abstract

The invention discloses a treatment process of high ammonia-nitrogen organic wastewater. The treatment process comprises an anaerobic section, an air stripping section, an absorption device, an aerobiotic section and a biogas treatment section. The process comprises the following steps: treating effluent on high ammonia-nitrogen wastewater by virtue of the anaerobic section; feeding into the air stripping section for treatment by virtue of an aerobiotic water outlet pipeline and inputting an alkali liquid in the aerobiotic water outlet pipeline before entering into the air stripping section by virtue of an alkali liquid pipeline to adjust the pH value; and stripping ammonia by using biogas generated in the anaerobic section in the ammonia-nitrogen air stripping section. According to the process disclosed by the invention, biogas generated in an anaerobic pond is sued for stripping in the air stripping section; the biogas is repeatedly purified by virtue of the air stripping section and the adsorption device, impurities in the biogas can be reduced; purified biogas enters into a subsequent biogas utilization system, so that the purpose of comprehensively treating wastewater and biogas is achieved.

Description

technical field [0001] The invention relates to the technical field of environmental engineering wastewater treatment, in particular to a treatment process for high ammonia nitrogen organic wastewater. Background technique [0002] At present, there are many types of organic wastewater with high ammonia nitrogen concentration. For example, microbial fermentation wastewater contains thousands to tens of thousands of COD, and the concentration of ammonia nitrogen is also hundreds to thousands; fecal wastewater has high ammonia nitrogen, COD, and P; some chemical and pharmaceutical wastewater especially The effluent of enterprises using specific animals and plants for production has the characteristics of high ammonia nitrogen concentration and high COD at the same time. If these waters rely on physical and chemical means, it is difficult to treat them economically, and biochemical processes are often required to meet local discharge standards. The more economical treatment pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C10L3/10
CPCC02F1/20C02F1/66C02F3/28C02F9/00C02F2101/16C02F2301/08C10L3/101Y02E50/30
Inventor 刘军侯双成宫建瑞
Owner NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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