某大学本科毕业设计-黑龙江省某市排水工程管网以及污水处理厂设计.doc

哈尔滨工业大学本科毕业设计（论文） PAGE - PAGE I- 摘 要 随着社会的进步和科学技术的不断发展，人们物质文化生活的需要也日益增加，人们对环境的要求也越来越高了。因此，环境问题成了人们关注的焦点，大气、土壤和水成为了重点污染对象，如何治理就成为我们所要面对的首要问题。 作为一名给水排水工程大学生，应以污水处理，改善水质为己任，认真学习本科生的功课，在指导教师的指导下完成毕业设计，为将来的学习工作打下坚实的基础，争取在将来为解决水污染问题贡献自己的一份力量。 本设计是黑龙江省大庆市污水处理工程设计，包括管网和污水处理厂设计。 依管网定线原则及水文地质资料对黑龙江省大庆市进行污水收集、输送管网定线，共设计2套技术可行方案，通过经济比较，确定选用方案一。 根据污水处理程度的计算，确定污水处理厂排放标准为一级B标准（GB18918-xxx）。 ，污水泵房形式选用自灌式，集水池与泵房合建；污水处理的工艺流程中，沉砂池采用平流式，停留时间30S； 初沉池采用辐流式，停留时间为1.5h；生化处理工艺选择SBR工艺，SBR的周期为8h，排放比取0.4，消毒接触池接触时间取30min。污泥处理工艺流程为：浓缩池→贮泥池→消化池→脱水→外运，其中消化工艺采用二级消化处理。 经过经济计算，排水工程的总造价约1.5亿元，污水处理成本为0.52元/吨。该工程的实施，可望解决该地区污水污染问题，具有较好的社会、环境和经济效益。 关键词 管网定线；污水处理；SBR工艺；污泥处理 Abstract With the improvement of society and the development of technology, more and more are needed by people. The problem of environment has been the focus. Air, soil, water become the most polluted, so how to control the pollution is what we have to be faced with .As a college student of water supply and drainage engineering, I should consider that the pollution of water as my duty. And study very hard to do my undergraduate courses .with the help of my faculty adviser-BingnanLv, I will complete my graduation design, lay a solid foundation for future study and work,struggle to contributes my own strength for solving problems in the future. This design is heilongjiang province daqing sewage disposal engineering design, at daqing, heilongjiang province ,including the network and sewage treatment plant design. According to the principle of fixing line pipe and hydrogeological information fix up the pipes which used to collect and transport sewage of heilongjiang province daqing drainage works for line. Design two sets of technically feasible plans, through the economic comparison,choose plan one. According to calculate he degree of sewage treatment, determine firstlevel class B standard as sewage discharge standards (GB18918-xxx). Wastewater treatment process is: pipe → pump room → detritus pit → primary se