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10th International Rainwater Catchment Systems Conference
"Rainwater International 2001"
Mannheim, Germany - September 2001

Section 1: Rainwater Harvesting in an Urban Context

Paper 1.3

The Quality and Major Influencing Factors of Runoff in Beijing's Urban Area

Che Wu, Wang Huizhen, Li Junqi, Liu Hong, Meng Guanghui
Beijing Institute of Civil Engineering and Architecture
China
email: chewu812@sina.com

Introduction

Beijing is faced with dual pressure brought on by the shortage of water resources and water environment pollution. To cope with this situation, it is important to study the quality of the average annual runoff of about 200 million cubic meters in the urban area (Che, 2001).

We analyzed and studied the quality of the natural rainfall on roofs and roads during the rainy season 1999-2000. The study shows that the pollutants quantity of natural rainfall was relatively low and the water quality was basically fine. The rainwater on roofs and roads showed serious pollution, mainly organic pollution and suspended solid pollution. This article, therefore, focuses its analysis on the two COD and SS indexes

PDF of full document (4pp, 68kb)


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