HJ 1139-2020
Self-monitoring Technical Guidelines for Pollutant Discharging Units Chemical Fiber Manufacturing Industry (English Version)

Standard No.

HJ 1139-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

Professional Standard - Environmental Protection

Latest

HJ 1139-2020

Introduction

Standard Background and Scope of Application

This standard is formulated in accordance with the Environmental Protection Law and other laws and regulations, and for the first time puts forward systematic self-monitoring requirements for the chemical fiber manufacturing industry. It is applicable to the monitoring of water, air and noise pollution in the production process of seven major products such as viscose fiber and polyester fiber.

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Analysis of core monitoring requirements

Monitoring type	Key indicators	Minimum frequency	Special requirements
Wastewater discharge	COD, ammonia nitrogen, total zinc	Quarterly/automatic monitoring	Viscose fiber needs to be tested for carbon disulfide
Organized waste gas	Non-methane total hydrocarbons, particulate matter	Monthly/quarterly	Nylon needs to be tested for formaldehyde
Unorganized waste gas	Hydrogen sulfide, ammonia	Half a year	Monitoring at factory boundaries

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Technical points

Typical application scenarios

Case: A polyester fiber factory detected a total antimony concentration of 0.8mg/L at the emission outlet of the polymerization workshop and discovered the catalyst leakage problem in time through the monthly monitoring frequency required by this standard.

Principles for developing monitoring plans

• All pollution-generating links (dope preparation → spinning → post-processing) must be covered
• The "strictest frequency" principle shall be implemented (e.g. the frequency of exhaust gas monitoring shall be the highest requirement of each process)
• Dynamic monitoring shall be implemented at rainwater outlets (frequency shall be increased in case of abnormality)

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Implementation suggestions

1. Establish a corresponding relationship matrix between pollution sources, pollutants and treatment facilities
2. VOCs automatic monitoring equipment shall be configured first (applicable to synthetic fiber manufacturing)
3. Hazardous waste records shall distinguish between waste activated carbon and waste mineral oil
4. Monitoring plan compliance review shall be conducted every quarter

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Analysis of standard evolution

Compared with the general provisions of HJ 819, the innovations of this standard include:

• Specify the differentiated monitoring requirements for 7 types of fiber products
• Add monitoring specifications for new fibers such as Lyocell fiber
• Specify special VOCs control for recycled polyester

HJ 1139-2020 Referenced Document

• GB 31571 Emission standard of pollutants for petroleum chemistry industry
• GB 31572 Emission standard of pollutants for synthetic resin industry
• GB/T 4146.1 Textiles—Man-made fibres—Part 1: Generic names
• GB/T 4146.2 Textiles.Man-made fibers.Part 2:Terms of products
• GB/T 4754 National Economic Industry Classification
• HJ 1102 Technical Specifications for Application and Issuance of Pollutant Discharge Permits for Manufacture of Chemical Fibers
• HJ 194 Technical specification for manual monitoring of ambient air quality "Revision No. 1"
• HJ 2.3 Technical guidelines for environmental impact assessment surface water environment
• HJ 442 Specification for offshore environmental monitoring
• HJ 664 Technical regulation for selection of ambient air quality monitoring stations (on trial)
• HJ 819 General Principles of Technical Guidelines for Self-Monitoring of Sewage Discharge Units
• HJ 820 Self-monitoring guidelines for pollution sources—Thermal power generation and boiler
• HJ 947 Self-monitoring Technical Guidelines for Pollutant Discharging Units Petrochemical Industry
• HJ/T 164 Technical specifications for environmental monitoring of groundwater
• HJ/T 166 Technical specification for soil environmental monitoring
• HJ/T 55 Technical guidelines for fugitive emission monitoring of air pollutants

HJ 1139-2020 history

• 2020 HJ 1139-2020 Self-monitoring Technical Guidelines for Pollutant Discharging Units Chemical Fiber Manufacturing Industry

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