学校代码： 11059 学 号：1102031041HefeiUniversity 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：环境工程松涛导师：叶劲松 完成时间： 2024 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，pH8～9。设计主要任务是确定污水处理厂设计规模、进行多方案比较、选定工艺流程、各单体设计、进行高程设计、工艺设备选型、总平面布置。该设计采纳吹脱法+AO 工艺处理氮肥厂的氨氮废水。污水处理流程为：细格栅到初沉池初沉池到调节池，调节池到吹脱塔，吹脱塔到 AO 池，AO 池到二沉池。废水处理后排入城市管网。污泥处理流程为：从二沉池排出的污泥一部分经污泥回流泵房回流至 AO 池，另一部分剩余污泥脱水后外运处置。所选的吹脱法+AO 工艺，对氨氮废水具有较好的处理效果。处理后达到《合成氨工业水污染物排放标准》（GB13458－2024）中的间接排放标准。关键词：氮肥厂废水；高氨氮；AO；吹脱法； Treatment process design for a 30000 tons nitrogenous fertilizer plant’s wastewaterAbstractThis 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 t...
