Study On The Scheme Of Sewerage Water Engineering At Shangsi Area In Hangzhou City

With the determination of the strategy in town construction in Hangzhou city, the preparative work in town construction has been carried out in Shangsi area where the infrastructure facilities were obviously delay to city development. Shangsi area is situated at the corner of the central city, and also at the upstream of drink water resource, sewerage water was concentrated for treatment in planning. Because the constructing land area was quickly expanded, it leads that the total quantity of clean water and waste water was rapidly increased to exceed the capacity of current treatment facilities, especially it is impossible to expand the existed long distance waste water drainage systems. Therefor it is an urgent task to seek for the best way to disposal sewerage water reliably and reasonably.The permission of dealing with regional sewerage water is to construct the saving sociality and keep sustainable development. Town construction must insist the policy of protecting environment, controlling water pollution, using regenerated water and introducing the theory of water cycle economy. The paper points out that it is very important to minimize waste water quantity and to reduce the loading suffered by natural water resources.The scheme of planning the wastewater at Shangsi area is suggested to fully use the current sewage pipe-networks and Sibao sewerage treatment plant. It will produce effective results to consider the reuse of regenerated water in priority and to reduce sewerage quantity. By the case study in reuse of generated water, the paper discusses relative policies, rule of law, experience in operation and management. The conclusions are available to provide some guide in sewerage water reuse for these cities of water shortage, especially worse water quality.