GB 21900-2008
Emission standard of pollutants for electroplating (English Version)

Standard No.

GB 21900-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 21900-2008

Scope

This standard specifies the discharge limits of electroplating water pollutants and air pollutants for electroplating enterprises and enterprises with electroplating facilities. This standard is applicable to the discharge management of water pollutants and air pollutants of existing electroplating enterprises. This standard applies to the environmental impact assessment of electroplating enterprise construction projects, the design of environmental protection facilities, the completion of environmental protection acceptance and the management of water and air pollutant discharge after commissioning. This standard also applies to anodizing surface treatment process facilities. This standard applies to the discharge of pollutants permitted by law. The site selection of newly established pollution sources and the management of existing pollution sources in special protection areas shall comply with the "Law of the People's Republic of China on Prevention and Control of Air Pollution", "Law of the People's Republic of China on Prevention and Control of Water Pollution", "Law of the People's Republic of China on Marine Environmental Protection" and "Solid State of the People's Republic of China". The Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Waste, the Law of the People's Republic of China on the Prevention and Control of Radioactive Pollution, and the Law of the People's Republic of China on Environmental Impact Assessment are implemented. The water pollutant discharge control requirements stipulated in this standard are applicable to the discharge behavior of enterprises to environmental water bodies. When enterprises discharge wastewater into urban drainage systems with sewage treatment plants, the toxic pollutants total chromium, hexavalent chromium, total nickel, total cadmium, total silver, total lead, and total mercury shall implement corresponding discharge limits at the monitoring positions specified in this standard. The emission control requirements of other pollutants shall be agreed upon by the enterprise and the urban sewage treatment plant or the relevant standards shall be implemented according to their sewage treatment capacity, and shall be reported to the local environmental protection authority for record; the urban sewage treatment plant shall ensure that the pollutants discharged meet the requirements of the relevant discharge standards . When a construction project intends to discharge wastewater into the urban drainage system with a sewage treatment plant, the construction unit and the urban sewage treatment plant shall implement the provisions of the preceding paragraph.

GB 21900-2008 Referenced Document

• GB/T 6920-1986 Water quality--Determination of pH value--Glass electrode method
• GB/T 7466-1987 Water quality--Determination of total chromium
• GB/T 7467-1987 Water quality--Determination of chromium(6)--1.5 Diphenylcarbahydrazide spectrophotometric method
• GB/T 7468-1987 Water quality--Determination of total mercury--Cold atomic absorption spectrophotometry
• GB/T 7469-1987 Water quality--Determination of total mercury--Potassium permanganate-potassium persulfate decomposed method--Dithizone spectrophotometric method
• GB/T 7470-1987 Water quality--Determination of lead--Spectrophotometric method with dithizone
• GB/T 7471-1987 Water quality--Determination of cadmium--Spectrophotometric method with dithizone
• GB/T 7472-1987 Water quality--Determination of zinc--Spectrophotometric method with dithizone
• GB/T 7473-1987 Water quality--Determination of copper--2,9-Dimethyl-1,10-phenanthroline spectrophotometric method
• GB/T 7474-1987 Water quality--Determination of copper--Sodium diethyldithiocarbamate spectrophotometric method
• GB/T 7475-1987 Water quality--Determination of copper, zinc, lead and cadmium--Atomic absorption spectrometry
• GB/T 7478-1987 Water quality--Determination of ammonium--Distillation and titration method
• GB/T 7479-1987 Water quality--Determination of ammonium-Nessler's reagent colorimetric method
• GB/T 7481-1987 Water quality--Determination of ammonium--Spectrophotometric method with salicylic acid
• GB/T 7483-1987 Water quality--Determination of fluoride--Fluor reagent spectrophotometric method
• GB/T 7484-1987 Water quality--Determination of fluoride--Ion selective electrode method
• GB/T 7486-1987 Water quality--Determination of cyanide--Part 1:Determination of total cyanide

GB 21900-2008 history

• 2008 GB 21900-2008 Emission standard of pollutants for electroplating