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Treatment and disposal method for ammonia (ammonium) waste liquid
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Basic data
| Standard ID | GB/T 36496-2018 (GB/T36496-2018) |
| Description (Translated English) | Treatment and disposal method for ammonia (ammonium) waste liquid |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Z05 |
| Classification of International Standard | 13.030.20 |
| Word Count Estimation | 14,173 |
| Date of Issue | 2018-07-13 |
| Date of Implementation | 2019-02-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 36496-2018: Treatment and disposal method for ammonia (ammonium) waste liquid
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Treatment and disposal method for ammonia(ammonium)waste liquid
ICS 13.030.20
Z05
National Standards of People's Republic of China
Ammonia (ammonium) waste liquid treatment and disposal method
Published on.2018-07-13
Implementation of.2019-02-01
State Market Supervisory Administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Waste Chemical Treatment Standardization Technical Committee (SAC/TC294).
This standard was drafted. Sinochem Chongqing Fuling Chemical Co., Ltd., Beijing Secco Kanglun Environmental Protection Technology Co., Ltd., Xiamen Lanheng Environmental Protection
Co., Ltd., Zhejiang Huayou Cobalt Co., Ltd., Sichuan Zhongming Environmental Treatment Co., Ltd., Shenzhen Shentou Environmental Protection Technology Co., Ltd.
Guangdong Bangpu Cycle Technology Co., Ltd., Changzhou Qingliu Environmental Protection Technology Co., Ltd., Jiashan Luye Environmental Protection Material Factory, Hunan Bangpu Cycle Technology
Company, CNOOC Tianjin Chemical Research and Design Institute Co., Ltd., Beijing Puren Meihua Environmental Protection Technology Co., Ltd., Jiangsu Wardkai Environmental Protection Co., Ltd.
Technology Co., Ltd., Shenzhen Zhongrun Water Industry Technology Development Co., Ltd., Weifang Dayao New Material Co., Ltd., Shandong Yifeng Biochemical Environmental Protection Unit
Co., Ltd.
The main drafters of this standard. Li Bing, Lin Xiao, Zhuang Mazhan, Ye Zhengmao, Zhao Bing, Feng Fanrang, Yu Haijun, Gu Lingling, Yu Minghua, Tang Honghui,
Zhao Meijing, Yu Dongchuan, Li Zuqiang, Li Kai, Li Jun, Zhang Chao, Wei Sha.
Ammonia (ammonium) waste liquid treatment and disposal method
1 Scope
This standard specifies the terms and definitions, treatment and disposal methods and environment for the treatment and disposal of ammonia (ammonium) waste liquid (hereinafter referred to as "ammonia waste liquid").
Protection requirements.
This standard applies to the treatment and disposal process of inorganic ammonia (ammonium) waste liquid.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB 8978 Integrated Wastewater Discharge Standard
GB 13458 Synthetic ammonia industrial water pollutant discharge standard
GB 14554 Odor Pollutant Discharge Standard
GB 16297 Integrated emission standards for atmospheric pollutants
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Ammonia (ammonium) wasteliquid
Waste liquid containing inorganic ammonia and ammonium salts produced during industrial production and use.
4 treatment and disposal methods
4.1 Stripping distillation method
4.1.1 Scope of application
Ammonia-containing waste liquid with an ammonia content (in terms of NH3) greater than 1000 mg/L is treated.
4.1.2 Method summary
By adjusting the pH of the ammonia-containing waste liquid, all the ammonia in the waste liquid is converted into molecular ammonia, which is based on ammonia and water molecules in the stripping rectification column.
The difference in volatility, control of the temperature inside the column, the ammonia is separated from the water in the form of molecular ammonia, and then recovered as an ammonia or ammonium salt product.
4.1.3 Process
The ammonia-containing waste liquid is placed in a pH adjusting tank, and the pH is adjusted to ≥10 by liquid alkali. The waste liquid is preheated by the bottom heat exchanger and then introduced into the stripping distillation column.
Ammonia removal. Passing steam to control the temperature inside the tower, evaporating ammonia in the waste liquid, and obtaining a deamination solution. The deamination solution is discharged after heat exchange and is steamed.
After the ammonia is sent to the top condenser, part of it is returned to the stripping rectification column, and a part of it is directly condensed to obtain ammonia water or added to the ammonia gas absorbent to be recovered.
Ammonium salt products.
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