Announcement of the Ministry of Housing and Urban-Rural Development of the People's Republic of China
No. 362
Announcement on publishing the national standard Code for design of water saving for iron and steel enterprises
Code for design of water saving for iron and steel enterprises has been approved as a national standard with a serial number of GB 50506-2009, and shall be implemented from December 1, 2009. Thereinto, 3.0.3, 3.0.5, 3.0.7, 3.0.10, 3.0.15 and 6.1.5 are compulsory provisions and must be enforced strictly.
Authorized by the Research Institute of Standards and Norms of the Ministry of Housing and Urban-Rural Development of the People's Republic of China, this code is published and distributed by China Planning Press.
Ministry of Housing and Urban-Rural Development of the People's Republic of China
June 17, 2009
Foreword
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
According to the requirements of Notice on printing and distributing the (JIANBIAOHAN [2005] No. 124) issued by the former Ministry of Construction, this code is jointly prepared by Capital Engineering & Research Incorporation Ltd. with organizations concerned.
During the development of this code, the drafting group has adhered to the core of "water saving and discharge reduction", and conscientiously implemented the guiding ideology of "saving water, utilizing water resources rationally, reducing pollution discharge and protecting water resources", summarized the water saving experiences of construction and design units of iron and steel enterprises in recent years by conducting targeted surveys and gathering data from iron and steel enterprises, actively sought and incorporated feedbacks from experts, scholars, and design professionals across the nation in the fields of design, scientific research, enterprises and other units, and held a number of symposiums. Following thorough examination, analysis, and multiple revisions by the group, this code was ultimately finalized upon review.
This code is divided into 10 clauses and one annex, with main contents including general provisions, terms, basic requirements, water source, production process, recirculating water treatment system, systems for softening & demineralizing water, reutilization of wastewater, rainwater utilization, leakproof & seepage prevention, etc.
The provisions printed in bold type in this code are compulsory and must be enforced strictly.
The Ministry of Housing and Urban-Rural Development of the People's Republic of China is in charge of the administration of this code and the explanation of the compulsory provisions; China Metallurgical Construction Association is in charge of routine management; Capital Engineering & Research Incorporation Ltd. is responsible for the explanation of specific technical contents. In case of any modification and supplement suggestion during the implementation of this code, please submit the suggestions and relevant information to the "Code for design of water saving for iron and steel enterprises" national code management team of the chief development organization, namely Capital Engineering & Research Incorporation Ltd. (Address: No.7 Jian'an Street, Beijing Economic and Technological Development Zone, 100176, China) for reference in future revision.
Code for design of water saving for iron and steel enterprises
1 General provisions
1.0.1 For the purpose of saving water, reducing sewage discharge, protecting water resources, improving water use efficiency of iron and steel enterprises and building water saving iron and steel enterprises, this code is formulated in accordance with the relevant national laws, regulations and policies on water saving and water pollution prevention & control.
1.0.2 This code is applicable to all design stages for construction, renovation and extension of iron and steel enterprises.
1.0.3 In the design of construction, renovation and extension for iron and steel enterprises, contents related to water saving shall be included, and the water saving technology, equipment and measures used shall be specified.
1.0.4 The design of water saving for iron and steel enterprises shall be combined with local urban, industrial and agricultural water development planning to use water resources rationally and protect water resources, thus ensure the sustainable socio-economic development in the context of limited water resources.
1.0.5 In addition to this code, the water saving design of iron and steel enterprises shall meet the requirements of current relevant national standards.
2 Terms
2.0.1
water saving
reduce water consumption, save water resources, improve the utilization efficiency of water resources, decrease sewage, protect water resources, and maintain sustainable utilization of water resources by adopting technology and management means
2.0.2
water saving in process
adopt water saving technology, equipment and measures in the production process
2.0.3
water saving facilities
production process facilities, water supply and drainage facilities for the purpose of saving water
2.0.4
water saving project
construction project for the purpose of saving water
2.0.5
enhanced primary treatment
process of coagulating sedimentation and filtration of wastewater
2.0.6
reclaimed water
water reutilized from wastewater directly or after treatment
2.0.7
reclaimed water volume
volume of water actually reutilized from wastewater directly or after treatment
2.0.8
purified rainwater
rainwater that can be used after purification treatment
2.0.9
wastewater reuse project
collection, transportation and treatment of wastewater, as well as the supported transportation of reclaimed water
2.0.10
rainwater utilization project
collection, transportation and treatment of rainwater, as well as the supported transportation of purified rainwater
2.0.11
wastewater reuse system
complex composed of some facilities, for example, collection, transportation and treatment facilities of wastewater, as well as supported transportation facilities of reclaimed water, arranged in a certain way
2.0.12
rainwater utilization system
complex composed of some facilities, for example, collection, transportation and treatment facilities of rainwater and supported transportation facilities of purified rainwater, arranged in a certain way
2.0.13
concentrated salt-containing wastewater
industrial wastewater with salt content greater than or equal to 2,000mg/L
2.0.14
reused salt-containing wastewater
reclaimed water of concentrated salt-containing wastewater after collection and treatment
2.0.15
leakage water loss
water lost by leakage during the treatment, transportation and use
2.0.16
spray water loss
water that is sprayed or carried away by air in the form of droplets during treatment or use
2.0.17
evaporation water loss
water lost by evaporation during the treatment, transportation and use
2.0.18
sewerage loss
water that must be discharged to maintain the stability of the water quality during treatment and use due to the ever-rising concentration of impurities or salt in the water
2.0.19
adsorption water loss
water consumed during treatment or use due to the entrainment or adsorption effect of solid media
3 General requirements
3.0.1 Water saving facilities for constructed, extended and renovated projects must be designed, constructed and put into operation simultaneously with the main project.
3.0.2 When the main part of the constructed, extended and renovated projects is built by stages, water saving facilities shall be planned comprehensively. When the water saving facilities are built in stages, the operation time shall not be later than that for the main part which is built by stages, and the construction scale of water saving facilities shall not be reduced.
3.0.3 Advanced water saving processes, technologies and equipment shall be adopted for the constructed, extended and renovated projects. The backward and obsolete processes, technologies and equipment with high water consumption must not be used.
3.0.4 The processes, technologies and equipment with high water consumption used in the production facilities of existing iron and steel enterprises shall be phased out through renovation.
3.0.5 As for newly-built iron and steel enterprises, the supporting wastewater treatment and reuse facilities must be constructed.
3.0.6 The existing iron and steel enterprises shall construct or improve supporting wastewater treatment and reuse facilities along with the constructed, extended and renovated projects.
3.0.7 As for the constructed, extended and renovated projects, the substandard wastewater must not be discharged into the receiving waters.
3.0.8 The reclaimed water shall be used when meeting the user's water utilization conditions.
3.0.9 If each workshop or unit has different water quality requirements for the production water, the water shall be supplied based on different water qualities. The high-quality water should not be supplied to low-quality water users.
Foreword i
1 General provisions
2 Terms
3 General requirements
4 Water source
5 Production process
5.1 Mining
5.2 Mineral processing
5.3 Raw material yard
5.4 Sintering & pelletizing
5.5 Coking
5.6 Ironmaking
5.7 Steelmaking
5.8 Steel rolling
5.9 Auxiliary production workshop
5.10 Metallurgical lime, soft-burned dolomite and refractory workshops
6 Recirculating water treatment system
6.1 General requirements
6.2 Indirect closed recirculating cooling water system
6.3 Indirect open recirculating cooling water system
6.4 Direct recirculating cooling water system
7 Systems for softening & demineralizing water
7.1 General requirements
7.2 System for softening water
7.3 System for demineralizing water
8 Wastewater reutilization
9 Rainwater utilization
10 Leakproof & seepage prevention
10.1 Water supply system
10.2 Water drainage system
Annex A Control indicators of quantity of water intake (consumption) for each production process of iron and steel enterprises
Explanation of wording in this code
List of quoted standards
Announcement of the Ministry of Housing and Urban-Rural Development of the People's Republic of China
No. 362
Announcement on publishing the national standard Code for design of water saving for iron and steel enterprises
Code for design of water saving for iron and steel enterprises has been approved as a national standard with a serial number of GB 50506-2009, and shall be implemented from December 1, 2009. Thereinto, 3.0.3, 3.0.5, 3.0.7, 3.0.10, 3.0.15 and 6.1.5 are compulsory provisions and must be enforced strictly.
Authorized by the Research Institute of Standards and Norms of the Ministry of Housing and Urban-Rural Development of the People's Republic of China, this code is published and distributed by China Planning Press.
Ministry of Housing and Urban-Rural Development of the People's Republic of China
June 17, 2009
Foreword
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
According to the requirements of Notice on printing and distributing the (JIANBIAOHAN [2005] No. 124) issued by the former Ministry of Construction, this code is jointly prepared by Capital Engineering & Research Incorporation Ltd. with organizations concerned.
During the development of this code, the drafting group has adhered to the core of "water saving and discharge reduction", and conscientiously implemented the guiding ideology of "saving water, utilizing water resources rationally, reducing pollution discharge and protecting water resources", summarized the water saving experiences of construction and design units of iron and steel enterprises in recent years by conducting targeted surveys and gathering data from iron and steel enterprises, actively sought and incorporated feedbacks from experts, scholars, and design professionals across the nation in the fields of design, scientific research, enterprises and other units, and held a number of symposiums. Following thorough examination, analysis, and multiple revisions by the group, this code was ultimately finalized upon review.
This code is divided into 10 clauses and one annex, with main contents including general provisions, terms, basic requirements, water source, production process, recirculating water treatment system, systems for softening & demineralizing water, reutilization of wastewater, rainwater utilization, leakproof & seepage prevention, etc.
The provisions printed in bold type in this code are compulsory and must be enforced strictly.
The Ministry of Housing and Urban-Rural Development of the People's Republic of China is in charge of the administration of this code and the explanation of the compulsory provisions; China Metallurgical Construction Association is in charge of routine management; Capital Engineering & Research Incorporation Ltd. is responsible for the explanation of specific technical contents. In case of any modification and supplement suggestion during the implementation of this code, please submit the suggestions and relevant information to the "Code for design of water saving for iron and steel enterprises" national code management team of the chief development organization, namely Capital Engineering & Research Incorporation Ltd. (Address: No.7 Jian'an Street, Beijing Economic and Technological Development Zone, 100176, China) for reference in future revision.
Code for design of water saving for iron and steel enterprises
1 General provisions
1.0.1 For the purpose of saving water, reducing sewage discharge, protecting water resources, improving water use efficiency of iron and steel enterprises and building water saving iron and steel enterprises, this code is formulated in accordance with the relevant national laws, regulations and policies on water saving and water pollution prevention & control.
1.0.2 This code is applicable to all design stages for construction, renovation and extension of iron and steel enterprises.
1.0.3 In the design of construction, renovation and extension for iron and steel enterprises, contents related to water saving shall be included, and the water saving technology, equipment and measures used shall be specified.
1.0.4 The design of water saving for iron and steel enterprises shall be combined with local urban, industrial and agricultural water development planning to use water resources rationally and protect water resources, thus ensure the sustainable socio-economic development in the context of limited water resources.
1.0.5 In addition to this code, the water saving design of iron and steel enterprises shall meet the requirements of current relevant national standards.
2 Terms
2.0.1
water saving
reduce water consumption, save water resources, improve the utilization efficiency of water resources, decrease sewage, protect water resources, and maintain sustainable utilization of water resources by adopting technology and management means
2.0.2
water saving in process
adopt water saving technology, equipment and measures in the production process
2.0.3
water saving facilities
production process facilities, water supply and drainage facilities for the purpose of saving water
2.0.4
water saving project
construction project for the purpose of saving water
2.0.5
enhanced primary treatment
process of coagulating sedimentation and filtration of wastewater
2.0.6
reclaimed water
water reutilized from wastewater directly or after treatment
2.0.7
reclaimed water volume
volume of water actually reutilized from wastewater directly or after treatment
2.0.8
purified rainwater
rainwater that can be used after purification treatment
2.0.9
wastewater reuse project
collection, transportation and treatment of wastewater, as well as the supported transportation of reclaimed water
2.0.10
rainwater utilization project
collection, transportation and treatment of rainwater, as well as the supported transportation of purified rainwater
2.0.11
wastewater reuse system
complex composed of some facilities, for example, collection, transportation and treatment facilities of wastewater, as well as supported transportation facilities of reclaimed water, arranged in a certain way
2.0.12
rainwater utilization system
complex composed of some facilities, for example, collection, transportation and treatment facilities of rainwater and supported transportation facilities of purified rainwater, arranged in a certain way
2.0.13
concentrated salt-containing wastewater
industrial wastewater with salt content greater than or equal to 2,000mg/L
2.0.14
reused salt-containing wastewater
reclaimed water of concentrated salt-containing wastewater after collection and treatment
2.0.15
leakage water loss
water lost by leakage during the treatment, transportation and use
2.0.16
spray water loss
water that is sprayed or carried away by air in the form of droplets during treatment or use
2.0.17
evaporation water loss
water lost by evaporation during the treatment, transportation and use
2.0.18
sewerage loss
water that must be discharged to maintain the stability of the water quality during treatment and use due to the ever-rising concentration of impurities or salt in the water
2.0.19
adsorption water loss
water consumed during treatment or use due to the entrainment or adsorption effect of solid media
3 General requirements
3.0.1 Water saving facilities for constructed, extended and renovated projects must be designed, constructed and put into operation simultaneously with the main project.
3.0.2 When the main part of the constructed, extended and renovated projects is built by stages, water saving facilities shall be planned comprehensively. When the water saving facilities are built in stages, the operation time shall not be later than that for the main part which is built by stages, and the construction scale of water saving facilities shall not be reduced.
3.0.3 Advanced water saving processes, technologies and equipment shall be adopted for the constructed, extended and renovated projects. The backward and obsolete processes, technologies and equipment with high water consumption must not be used.
3.0.4 The processes, technologies and equipment with high water consumption used in the production facilities of existing iron and steel enterprises shall be phased out through renovation.
3.0.5 As for newly-built iron and steel enterprises, the supporting wastewater treatment and reuse facilities must be constructed.
3.0.6 The existing iron and steel enterprises shall construct or improve supporting wastewater treatment and reuse facilities along with the constructed, extended and renovated projects.
3.0.7 As for the constructed, extended and renovated projects, the substandard wastewater must not be discharged into the receiving waters.
3.0.8 The reclaimed water shall be used when meeting the user's water utilization conditions.
3.0.9 If each workshop or unit has different water quality requirements for the production water, the water shall be supplied based on different water qualities. The high-quality water should not be supplied to low-quality water users.
Contents of GB 50506-2009
Foreword i
1 General provisions
2 Terms
3 General requirements
4 Water source
5 Production process
5.1 Mining
5.2 Mineral processing
5.3 Raw material yard
5.4 Sintering & pelletizing
5.5 Coking
5.6 Ironmaking
5.7 Steelmaking
5.8 Steel rolling
5.9 Auxiliary production workshop
5.10 Metallurgical lime, soft-burned dolomite and refractory workshops
6 Recirculating water treatment system
6.1 General requirements
6.2 Indirect closed recirculating cooling water system
6.3 Indirect open recirculating cooling water system
6.4 Direct recirculating cooling water system
7 Systems for softening & demineralizing water
7.1 General requirements
7.2 System for softening water
7.3 System for demineralizing water
8 Wastewater reutilization
9 Rainwater utilization
10 Leakproof & seepage prevention
10.1 Water supply system
10.2 Water drainage system
Annex A Control indicators of quantity of water intake (consumption) for each production process of iron and steel enterprises
Explanation of wording in this code
List of quoted standards
