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A kind of treatment method of ammonia nitrogen wastewater

A technology of ammonia nitrogen wastewater and treatment method, which is applied in water/sewage treatment, degassed water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of insufficient countercurrent contact between ammonia nitrogen wastewater and steam and low deamination efficiency , the difficulty of free ammonia, etc., to achieve the effect of enhancing volatilization, saving water, and increasing the contact area

Active Publication Date: 2022-05-20
上海天成环境保护有限公司
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Problems solved by technology

[0004] However, at present, the existing stripper still has the problem of insufficient countercurrent contact between ammonia nitrogen wastewater and steam during use, making it difficult for the free ammonia in ammonia nitrogen wastewater to volatilize in large quantities with steam, and the ammonia removal efficiency is not high

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  • A kind of treatment method of ammonia nitrogen wastewater
  • A kind of treatment method of ammonia nitrogen wastewater

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] refer to figure 1 , is a kind of treatment method of ammonia nitrogen wastewater disclosed by the present invention, comprises the following steps:

[0038] A1. Pretreatment of high-concentration ammonia nitrogen wastewater;

[0039] A2. The pretreated ammonia nitrogen wastewater is first subjected to heat exchange treatment, and then subjected to concentration and temperature increase treatment;

[0040] A3. Use a stripper to strip the heated ammonia nitrogen wastewater to obtain ammonia-containing steam and deammonia wastewater;

[0041] A4. Connect the ammonia-containing steam in step A3 to step A2 and carry out thickening treatment to ammonia nitrogen wastewater;

[0042] A5. Heat the deammonization wastewater in step A3 to generate secondary steam and high-temperature deammonization wastewater, and connect the secondary steam to the stripping t...

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Abstract

The invention relates to a method for treating ammonia nitrogen wastewater, comprising: A1 pretreating ammonia nitrogen wastewater; A2 performing heat exchange treatment on the pretreated ammonia nitrogen wastewater, and then performing concentration and temperature increase treatment; A3 adopting a stripping tower to treat the heated ammonia nitrogen The waste water is stripped to obtain ammonia-containing steam and deamination waste water; A4 connects the ammonia-containing steam in step A3 to step A2 to enrich the ammonia-nitrogen waste water; A5 heats the deamination waste water in step A3 to produce Secondary steam and high-temperature deammonization wastewater, and the secondary steam is connected to the stripping tower to supplement the steam in the stripping tower. The stripping tower in step A3 includes a tank body, a spraying device and a steam spraying device, and the spraying device includes a spraying pipe, a spraying head rotatably installed on the end of the spraying pipe and a driving part. The steam injection device comprises a steam pipe, a steam injection head rotatably installed on the end of the steam pipe and a rotating part. The present invention has the effect of high ammonia removal efficiency.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment method for ammonia nitrogen wastewater. Background technique [0002] With the rapid development of my country's economy, the problem of water pollution is becoming more and more serious, and the pollution of ammonia nitrogen wastewater is becoming more and more serious. At present, chemical, metallurgical, petrochemical, pharmaceutical, food and other industries all produce a large amount of high-concentration ammonia-nitrogen wastewater. The discharge of a large amount of ammonia-nitrogen wastewater has led to intensified eutrophication of water bodies, resulting in black and odorous water bodies and a large number of fish deaths. The resulting major water crises occur from time to time, seriously affecting people's normal life, and even endangering people's health, which has a huge social impact. In order to protect the ecological environment and redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/12C02F1/20C02F101/16
CPCC02F1/12C02F1/20C02F2101/16Y02W10/10
Inventor 许忠晖滕蔚珺邓华芳
Owner 上海天成环境保护有限公司
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