广安区肖溪镇汤镇污水处理站设计毕业论文说明书.doc

毕业设计说明书 摘 要 4 1 设计概论 6 1.1设计依据和设计任务 6 1.2 设计水量 7 1.3 设计水质 7 2 工艺流程的确定 9 2.1设计方案及可行性分析 9 2.2工艺流程 1 3 污水处理构筑物设计计算 15 3.1粗格栅 15 3.2调节池 18 3.3提升泵房 19 3.4细格栅 20 3.5平底沉砂池 22 3.6生物接触氧化池 25 3.7二沉池 28 3.8消毒池 31 3.9加氯间 32 3.10污泥浓缩池 32 3.11鼓风机房 36 3.12贮泥池 36 3.13污泥脱水机房 38 4 主要设备说明 41 5 污水处理厂布置 44 5.1污水处理厂平面布置 44 5.2污水处理厂高程布置 46 6 工程概算与成本分析 51 6.1企业组织 51 6.2投资概算 51 6.3工程建设其他费用计算 54 6.4预备费用计算 54 6.5运行费用 54 结论与体会 58 致谢 59 参考文献 60 摘 要 我国最大的环境问题之一，发展对我国能否实现可持续发展起作用。水资源的不合理利用，水污染日益严重。，污水处理工艺效、合理、经济是这些问题的。 本设计是生活污水处理的初步设计。根据所处的地理位置和污水的规模，并结合的要求，生物接触氧化工艺附着在载体上的生物膜净化有机废水水处理工艺工艺稳定性高，处理构筑物少投资点。通过此工艺的处理出水水质达到国家《城镇污水处理厂污染物排放标准》（GB18918-2002）一级B标。 关键词：污水处理； 生物接触氧化； 工艺流程； Abstract Water pollution is one of the biggest environmental problems in China, the development of water treatment technology play an important role to the realization of the sustainable development of our country. The unreasonable utilization of water resources and development, the worst is the main factor of water pollution is increasingly serious. Sewage treatment process, therefore, high efficient, reasonable and economic guarantee is the key to solve these problems. This design is wont XiaoXi Town of 800 m3 / d for preliminary design of sewage treatment station. According to the XiaoXi Town of geographical location and the size of the sewage plant, and combining in the field of biological nitrogen removal, biological contact oxidation process is most suitable for the process sewage treatment station. Using biological membrane water treatment of wastewater biological contact oxidation is attached to the carrier biofilm, achieve organic wastewater purification water treatment technology with high efficiency, high process stability, less processing structures, the advantages of less investment. Through this process of treated effluent water quality and can meet the Level B of Class 1 innational urban sewage treatment plant pollutant discharge standard (GB18918-2002) . Key words: sewage treatment station ; biolo