GB 50425-2019 (GB 50425-2008) PDF English
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Code for design of environmental protection of textile industry enterprise
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GB 50425-2008: Code for design of environmental protection of textile industry enterprise---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB50425-2008
NATIONAL STANDARD
OF THE PEOPLE'S REPUBLIC OF CHIN.A
Code for Design of Environmental Protection of
Textile Industry Enterprise
Issued on: OCTOBER 15, 2008
Implemented on: APRIL 1, 2009
Joint!)' Issued by Ministry of Housing and "Urban-Rural Development of the People's
Republic of China
General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China
NATIONAL STANDARD
OF THE PEOPLE'S REPUBLIC OF CHINA
Code for Design of Environmental Protection of
Textile Industry Enterprise
Chief Development Department. China National Textile and Apparel Council
Approval Depm1ment. Ministry of Housing and Urban-Rural Development of the People's Republic
of China
Implementation Date. April 1, 2009
Bcijing 2009
NOTICE
This code is written in Chinese and English. The Chinese text shall be taken as the ruling one in
the event of any inconsistency between the Chinese text and the English text.
Announcement of the Ministry of Housing and Urban-Rural
Development of the People's Republic of China
No. 131
Announcement on Publishing the National Standard of"Code for Design of
Environmental Protection of Textile Industry Enterprise"
"Code for Design of Environmental Protection of Textile Industry Enterprise" has been approved
as a national standard with a serial number GB 50425-2008 and shall be implemented from April 1,
2009. Therein, Articles (Items) 3 .1.4, 3 .2.4, 3.23 .12, 4.4.8 (2) and 6.1.9 are compulsory and must be
enforced strictly.
Authorized by the Standard Rating Research Institute of the Ministry of Housing and Urban-
Rural Development of the People's Republic of China, this code is published by China Planning Press.
Ministry of Housing and Urban-Rural Development of the People 's Republic of China
October 15, 2008
Foreword
This code was formulated by Shanghai Textile Architectural Design Research Institute jointly
w ith the relevant organizations accordi ng to the requirements of Document JIANBIAO [2005] No.
124 issued by the Ministry of Construction (MOC)-"Notice on Printing the Development and
Revision Plan (the Second Lot) of Nationa l Engineering Construction Standards and Codes in 2005".
During the formulating process, by means of summarizing the design and operation experience
on environmental engineering of the Chinese textile industry enterprise in recent years and of extensively
asking for opinions all around China from the relevant texti le research and design organizations,
manufacturing enterprise as well as experts and experts from universities and colleges, through repeated
discussion and modification, this code is finally finalized upon review.
This code is composed of eight chapters and one appendix and mainly covers. general provisions,
terms and symbols, waste water treatment, reclamation of waste water, waste gas treatment, disposal
and utilization of waste residue, noise control and greening.
The provisions printed in bold type are compulsory ones and must be enforced strictly.
The Ministry of Housing and Urban-Rural Development is in charge of the adm inistration of this
standard and the explanation of the compulsory provisions; China National Textile and Apparel Council
is responsible for the routine management and Shanghai Textile Architectural Design Research institute
is responsible for the explanation of specific technical contents. D uring the process of implementing
this code, all relevant organizations are kindly requested to sum up and accumulate your experience in
actual practices, and in case of any supplement and amendment, please send the opinions and
suggestions to Shanghai Textile Architectural Design Research Institute for reference (Address. No.
130, Changshou Road, 200060, Shanghai City, Ch ina; E-mail. yinzw731@ 126. com).
Chief Development Organization, Participating Development O rganizations and Chief Drafting
Staffs of this code.
Chief Development Organization. Shanghai Textile Architecn1ral Design Research Institute
Pa1ticipating Development Organization.
China Texti le Industrial Engineering Institute
Donghua U niversity
Zhej iang Super Max Environmental Engine_ering Co., Ltd.
Henan Textile Design Institute
Dandong Haiyan Chemical Fibre Co., Ltd.
Chief Drafting Staffs. Jiang Zhenhua, Yin Zhenwen, Cao Zhimin, Liu Fang, Yang Bo, L i Xuezhi,
Chen Jihua, Yu Ganjin, Huang Yingchun, Zhang Maohai, Zheng Wei and
Zhou Yide
Table of Contents
General Provisions ... 1
2 Tenns and Syn1bols ... 2
2.1 Tern1s ... 2
2 .2 Symbols ... 4
3 Waste Water Treatment... 5
3.1 General Require1nents ... 5
3.2 Grid and Grid Mesh ... 5
3.3 Collecting Tank ... 5
3.4 Water Pun1p and Ptnnp House ... 6
3 .5 Regulating Reservoir ... 6
3.6 Cooling and Insulation ... 7
3.7 PH Adjustn1ent ... 7
3.8 Pre-settling Tank ... 8
3 .9 Treatment of H igh-concentration Waste Water ... 8
3 .I 0 Defoan1ing Measures ... 8
3.11 Treatment of Harmful Toxic Substances ... 8
3. 12 Agent Syste1n ... 9
3.13 Oxygen Supply Faci lities and Fan Room ... 10
3.14 SludgeDehydration ... 11
3.15 Treatment of Dyeing Waste Water... 12
3.16 Treatment of Waste Water of Wool Scouring ... 14
3.17 Treatment of Degumming Waste Water of Ramie ... 15
3.18 Treatment of Waste Water of Silk ... 16
3.19 Treatment of Waste Water of Pulp and Viscose Fibre ... 16
3 .20 Treatment of Waste Water of Acrylic Fiber Processing ... 18
3.21 Treatment of Waste Water of Polyester Processing ... 18
3.22 Treatment of Waste Water of Polyamide, Spandex and Polypropylene ... 19
3.23 Selection of Waste Water Treatment Plant (Station) and General Layout ... l9
4 Reclamation of Waste Water ... 21
4.1 General Requirements ... 21
4.2 Reclaimed Water Source and Raw Water Quality ... 21
4.3 Reclaimed Water Use and Water Quality Standard ... 21
4.4 Types of Reclaimed Water System ... 22
4.5 Reclaimed Water Treatment System ... 23
5 Waste Gas Treat1nent... 25
5.1 General Requirements ... 25
5.2 Treatment of Waste Gas From Viscose Fibre Plant... 25
5.3 Treatment of Waste Gas From Acrylic Fiber Plant ... 25
5.4 Treatment of Waste Gas From Polyester Plant... 26
5.5 Treatment of Waste Gas From Polyamide Plant... 26
6 Disposal and Util ization of Waste Residue ... 27
6.1 General Requirements ... 27
6.2 Disposal of Waste Residue From Wool Mill, Hemp Mi ll and Printing and Dyeing Mi ll... 27
6.3 Disposal of Waste Residue in Cotton Mill ... 27
6.4 Disposal of Waste Resid ue From Viscose Plant... 28
6.5 Disposal of Waste Residue From Acrylic Fiber Plant ... 28
6.6 Disposal of Waste Residue From Polyamide, Spandex and Polypropylene ... 28
7 Noise Control ... 29
7.1 General Require1nents ... 29
7.2 Noise Control ... 29
7.3 Noise Control Measures ... 30
8 Greening ... 33
8.1 General Requirements ... 33
8.2 Green ing Layout... 33
Appendix A Minimum Clear Spacing Between the Drainage Piping of the Waste Water Treatment
Plant (Station) and Other Underground Pipelines (Structures) ... 34
Explanation of Wording in This Code ... 35
1 General Provisions
1.0.1 This code is fonnulated with view to preventing and controlling the pollution caused by the
textile industry as well as instructing and normalizing the design of environmental engine...
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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