（国家标准)GB 8978-1996 污水综合排放标准(英文).pdf

NATIONAL STANDARD of THE PEOPLE’S REPUBLIC OF CHINA 中华人民共和国国家标准 GB 8978-1996 Integrated Water Discharge Standard 污水综合排放标准 Date of Approval : Oct. 4, 1996 Date of Enforcement: Jan. 1, 1998 Preface The standard is the revised edition of “Integrated Wastewater Discharge Standard”(GB8978-88). The major contents for the revision are: put forward the standard of fixed date to substitute the classification of the existing enterprise and the new construction, extension and reconstruction (NCER) enterprise in previous standard. The time divided is determined according to the implementation date of this standard. The organizations built before December 31st, 1997 are required to implement the limit in the first time phase. The organizations built after the January 1st, 1998 are required to implement the limit in the second time phase. As for the applying scope of the standard, the principle is clear that the integrated wastewater discharge standard can not overlap with the trade discharge standard. Wastewater discharged from the paper industry, ship, ship-building industry, off-shore oil exploitation industry, dyeing finishing of textile industry, meat processing industry, synthetic ammonia industry, iron and steel industry, space propellant, ordnance industry, phosphate fertilizer industry, caustic alkali and polyvinyl chloride industries is required to implement the corresponding national trade standards. All the other organizations discharging wastewater are required to implement this standard. Except the above-mentioned 12