Research On Municipal Sewerage Harness Of Shandong Segment In East Route Of South-to-North Water Diversion Project

South-to-North Water Diversion Project is super great infrastructure project which will relieve serious water shortage in north China. The East Route of water diversion should be completed by 2010, and pollution control to ensure diverted water quality is a key factor to guarantee the project successful. It is a significant sector to expedite working out the water pollution control planning for the East Route basin and strengthen researching on technical policy and implementing schemes.In this study investigation and analysis was carried out on background information of environment, social economy and state of wastewater discharge or treatment invovled in lineal basins of Shandong segment in the East Route. Currently water bodies of lineal basins have been polluted badly through Shandong segment. Pollution sources include domestic and industrial sewage, directly dicharged industrial wastewater and agricultural or aquiculture non-point sources, among these municipal wastewater and wastes are main pollution source as well as directly dicharged industrial wasterwater. So harness on municipal wastewater is crucial step on wate pollution control schedule.Based on theory of water pollution control planning, municipal water pollution loads were predicted for planning bound along the route. Since population in cities' general plannings cann't fit to cities' development, reestimation on population was performed according to rate of population natural increase, variation of floating population and trend of urbanization in Shandong Province during recent decades; integrated wastewater drainage standard per capita and COD concerntration of influent were confirmed according to situation of municipal water and wastewater facilities along the East Route in Shandong and construction experience of similar domestic cities. Then writer forecasted amount of water supply and wastewater, aqueous pollutants of individual cities by planning fixed number of years. In term of gross control principle whittled amount of pollutants was caculated by different planning years range level. Through regional water pollution control measures, integrative technical schemes and implementing suggestions were proposed for municipal wastewater harness along the Route in the study. Particularly treatment processes selection was combined with social and economic development level of lineal cities, and practical experience of projects construction for municipal sewerage facilities. Both of advanced technology and economic efficiency were considered.Eventually it was concluded that in Shandong segment of the East Route of South-to-North Watet Diversion Project 43 items of municipal wastewater treatment projects should be constructed and put to running by 2005 and total scale should reach to 1.755 million m3/d, reused water to 0.90 million m3/d, whittled COD load to 0.2589 million t/a, investment estimated to 2.793 billion yuan; by 2010 those 43 projects should be continued and expanded, then total scale should increase 0.935 million m3/d, reused water 0.69 million m3/d and whittled COD load 0.1473 million t/a, investment 2.320 billion yuan respectively.