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GB/T 41952-2022 English PDF

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GB/T 41952-2022: Technical specification of treatment and disposal for waste liquid from naphthalene dye intermediates
Status: Valid
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GB/T 41952-2022199 Add to Cart 3 days Technical specification of treatment and disposal for waste liquid from naphthalene dye intermediates Valid

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Basic data

Standard ID: GB/T 41952-2022 (GB/T41952-2022)
Description (Translated English): Technical specification of treatment and disposal for waste liquid from naphthalene dye intermediates
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Z05
Classification of International Standard: 13.030.20
Word Count Estimation: 10,168
Date of Issue: 2022-12-30
Date of Implementation: 2023-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41952-2022: Technical specification of treatment and disposal for waste liquid from naphthalene dye intermediates


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 13.030.20 CCSZ05 National Standards of People's Republic of China Treatment and disposal of waste liquid from the production of naphthalene dye intermediates specifications Posted on 2022-12-30 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Standardization Technical Committee on Disposal of Waste Chemicals (SAC/TC294). This document was drafted by. Shenzhen Ruishenghua Technology Co., Ltd., Wudi Dexin Chemical Co., Ltd., CNOOC Tianjin Chemical Research Design Institute Co., Ltd., Shishi Lanxin Environmental Protection Technology Co., Ltd., Shenzhen Huixin Environmental Technology Co., Ltd., Weifang Menjie Chemical Co., Ltd., Dachaidan Hexin Technology Co., Ltd., Inner Mongolia Meilijian Technology and Chemical Co., Ltd., Jinhua Shuizhiyin Testing Co., Ltd. The main drafters of this document. Zhang Xiaojiang, Wang Senlin, Gong Chuangzhou, Xu Yuyang, Yin Huaze, Liu Quanjun, Ruan Guosheng, Xue Hongda, Zhu Chunlian, Zhao Tuo, Wang Haijuan, Niu Ke, Guo Mingying, An Xiaoying, Ding Ling, Zhang Hongqiang. Treatment and disposal of waste liquid from the production of naphthalene dye intermediates specifications

1 Scope

This document specifies the general requirements, disposal methods and environmental protection requirements for the treatment and disposal of waste liquid from the production of naphthalene dye intermediates. This document applies to the treatment and disposal of waste liquid from the production of naphthalene dye intermediates.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB 5085.7 General Rules for Hazardous Waste Identification Standards GB/T 6009-2014 Industrial Anhydrous Sodium Sulfate GB/T 10500-2009 Industrial sodium sulfide GB 18599 Pollution Control Standards for General Industrial Solid Waste Storage and Landfill HG/T 5907 dye by-product ammonium sulfate HJ/T 20 Technical Specifications for Sampling and Preparation of Industrial Solid Waste HJ298 Technical Specification for Identification of Hazardous Wastes HJ501-2009 Determination of total organic carbon in water quality Combustion oxidation - non-dispersive infrared absorption method HJ828 Determination of chemical oxygen demand in water quality Dichromate method

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Using naphthalene as raw material through sulfonation, nitration, reduction, alkali fusion and other production processes to obtain naphthalenesulfonic acid as the main body, used for the production of dyes, pigments, etc. intermediate products. Note. Including H acid (1-amino-8-naphthol-3,6-disulfonic acid), J acid (2-amino-5-naphthol-7-sulfonic acid), tunic acid (2-naphthylamine -1-sulfonic acid), amino acid (2-naphthalene Amine-3,6,8-trisulfonic acid), 1-naphthol, 2-naphthol, etc. 3.2 Aiming at the specific groups of pollutants in the wastewater, the corresponding complexing agent is used to complex the specific groups, and the mutual difference between the complexing agent and the wastewater is used to Compatibility, effectively separate the complex from wastewater, and remove naphthalene-based organics in wastewater. 3.3 The wastewater from which organic matter has been removed is evaporated and concentrated by mechanical vapor recompression (MVR) technology to crystallize the salt.
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