The Project Designing And The Programming Research Of Wastewater Reused In The Development Area Of Huangdao

HuangDao is the economic and technological development zone of QingDao. Nowadays, it is the fact that the shortage of water and water pollution restrict the development of HuangDao. Water reused is the main way tothe problem.On the basis of a systematic summary of domestic and international experience and technology and processes in water reused,the design takes HuangDao as the research object, analyzes the necessity and feasibility of implementation of water reuse. Under this background, this issue makes the wastewater as a second water source, puts forward the project designning and programming of water reuse in HuangDao,provides reference on mitigating water conflicts and reducing water pollution for the developing area.Firstly, through the research of drainfield and users, the design divides HuangDao into three fields which is Lan Wanhe field, Tang Daowan field, Long Quanhe field respectively, corresponding with three sewage treating plants in the area.Secondly, on the basis of field dividing, according to collection,processing,delivery and user management, the design divides the wastewater reuse system into sewerage collecting system,treating system,transmission and distribution system and management system, and designs in turn, goes along the programming for the water reuse system in HuangDao. Besides, for the actual situation of each field, the issue designs collecting system,the treating scale,reuse means,process flow,treating equipment,adopted flocculant and disinfection method for every field.At the same time, the issue design every field's pipe network,including the layout,maximum flow and the most negative point of hydraulic pressure and so on..Finally, the paper carrys through the economic evaluation and benefit analysis on water reuse project in HuangDao, educing that the financial evaluation is cost-effective and the national economic evaluation is significantly beneficial. Furthermore, it is proved that wastewater reuse project can bring about huge economic benefits,environmental benefits and social benefits for HuangDao. Consequently this project is feasible.