Three industries and wastewater and COD discharge of Beijing

Article type: Research Article

Authors: Wang, Yan | Wang, Hong-rui | Ning, Da-tong

Affiliations: Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China | Institute of Environmental Sciences, Beijing Normal University, Beijing 100875, China

Abstract: With the swift development of economy, the water quality of Beijing is becoming worse day by day and hampers the sustainable development obviously. In this paper, the current conditions of the municipal wastewater structure in the industrial sectors are analysed and discussed in terms of the indicators, such as direct wastewater-discharge coefficient, complete wastewater-discharge coefficient, direct discharge coefficient of COD and complete discharge coefficient of COD, by taking a year of 1990s as the base year. Some countermeasures are studied and the corresponding recommendations are put forward in order to improve the water environment in Beijing. This provides a scientific ground for coordinating the relationship between the aquatic environment and economic growth in this city.

Keywords: direct wastewater-discharge coefficient (DWDC), complete wastewater-discharge coefficient (CWDC), direct discharge efficient of COD (DDC of COD), complete discharge coefficient of COD (CDC of COD)

Journal: Journal of Environmental Sciences, vol. 12, no. 4, pp. 474-477, 2000