Study On Ecological Urban Construction-based Optimization Of Water Supply And Drainage Network And Optimization Of Wastewater Reclamation And Resue System

The city water demand is increasing against a background of shortage of waterresource and deterioration of water environment. So There is a growing appreciation ofthe need for building ecological city with using water more efficiently. The paperstudies the planning of urban water supply and drainage works，the planning ofreclaimed water in northwest city of fengdong new town in xixian new area and bringsthe designed optimal based on eco-city construction.And the paper also puts forward rational improvement proposals onunreasonable exploitation groundwater and unreasonable planning ofthe water distribution system and Water supply project construction scheduleill cases example. According to low impact development,the paper also put forwardensure priority eco building drainage system to achieve goals of stormwatermanagement and ecological development.As report of the case study in urban argues,the design platform of preparing storm sewer system special planning is relativelybackward. So the paper put forward and introduce a new technology-Digital WaterDrainage System for optimizing the storm sewer system.Therefore, the ability of thecase city storm sewer system resists waterlogging have increased significantly. At thesame time,the conditions of waterlogging in case city was simulated by DWDS in different rainfall intensity.The result showed the need of pre-arranging planning basedon the condition of different intensity.The paper has learned experience in usingreclaimed water in the cities short of water’such as Beijing and Tianjin.The experienceswere applied in the planning and construction of reclaimed water engineering in thenew town of Fengdong in Xixian.It indicated that there is a mistake of missinginvestigating the water supply volume of large consumer and also missingconsiderations of the need of water in landscape and recreation area in reclaimed waterspecial planning in the case city. The paper also puts forward an original idea aboutreasonable choice of reclaimed water supply. The paper raised the opinions of theadjustment about the layout of urban wastewater treatment plant and sewer pipes in theconstruction of sewer pipes.Meanwhile, it think that it is necessary to step up publicityefforts on public facilities.In the paper’it proposed an optimized scheme thatmunicapal pippeline tube should move away from the motor way on the whole.It alsobrought up that we should set up geographic information system of underground pipenetwork in case city as soon as possible. In conclusion, a raising of standards in runningand maintenance for drainage network, pump station and municipal network watersupply.