华中某城市污水处理厂初步设计A preliminary design of a sewage treatment plant in the middle of China 摘要 此次污水处理厂的初步设计，是以长沙市第一污水处理厂的水质条件、地质条件、地理气象条件为基础设计的。鉴于本次设计的水量为 20 万吨/天，选择如下的处理程序。首先是物理处理，通过提升泵房的一次提升，然后再经过中格栅、细格栅，接着是生物处理，在对各工艺进行技术可行性、经济合理性、应用广泛、管理科学方便的综合比较之后，选择了经济可行、管理方便的 A/A/O 法。在平面布局上，厂前区布置在西北向，生产区布置在东南向，具体布局见平面布局图。关键字：污水处理厂；长沙；物理处理；生物处理；A/A/O 法AbstractThe preliminary design of the sewage treatment plant, the sample of which is he water quality conditions, geological conditions, weather and geographical conditions in Changsha First Sewage Treatment Plant. Given the quantity of this design is200, 000 tons per day, we choose the following process. The first is the physical treatment, the water go though the middle grille, the small grille, and then is upgraded in the pumping station. Followed is the biological treatment, after a series of comparison in technical feasibility, economic rationality of the extensive application, science and facilitate in management, we use a viable economic, flexible process named Anaerobic-Anoxic-Oxic . In the plane layout, the former factory districts are in the northeast, while the production areas are in the southwest .For the details, please have a look at the specific flat layout.Keyword: the sewage treatment plant； Changsha； the physical treatment； the biological treatment,；Anaerobic-Anoxic-Oxic目 录摘要...........................................................................................................................................................................IABSTRACT.........................................................
