日处理3万吨氮肥厂废水处理工艺设计毕业论文.doc

学校代码： 11059 学 号：1102031041 Hefei University 毕业设计（论文） BACHELOR DISSERTATION 论文题目： 日处理3万吨氮肥厂废水处理工艺设计 学位类别： 工学学士 学科专业： 环境工程 作者姓名： 赵松涛 导师姓名： 叶劲松 完成时间： 2015 年5月 日处理3万吨氮肥厂废水处理工艺设计 摘 要 本次毕业设计的题目为日处理3万吨氮肥厂废水处理工艺设计。进水水质情况如下COD800mg/l， BOD5250mg/l，SS300mg/l，NH4-N1000mg/l，pH8～Treatment process design for a 30000 tons nitrogenous fertilizer plant’s wastewater Abstract This graduation project topic is the process design for the treatment of30000 tons wastewater of the nitrogen fertilizer plant in a day. The influent water quality is as follows: COD800mg/l, BOD5250mg/l, NH4-N1000mg/l, pH8, SS300mg/l ~ 9.The primary mission is determined the sewage treatment plant design scale, carries on the multi-plan comparison, designated the technical process, carries on the elevation design, the process unit shaping, various monomers design, the total plane arrangement. Air stripping method and AO are adopt in the treatment process of the wastewater.the specific process of the treatment is : the fine grid to the beginning of the sink, the beginning of the pool to adjust the pool, adjust the pool to air stripping tower, tower to the AO pool, AO pool to two sink.Sewage treatment into the city pipe network.?Sludge treatment process for: from the sludge of secondary sedimentation tank discharge of a part through a sludge reflux pump back to the Ao pool, another part of the residual sludge dewatering Sinotrans disposal.?The +AO process of the Air stripping method has good effect for ammonia nitrogen wastewater. The quality of the water can reached synthetic ammonia industrial water pollutant discharge standards (GB134582013) indirect discharge standard of the. KEY WORD: Nitrogenous fertil