复合混凝剂处理石油化工二级出水的讨论(24 页)Good is good, but better carries it.精益求精，善益求善。 本科毕业设计(论文)学生姓名： 张震 学 号： 130 5070222 所在学院： 生物与制药工程学院 专 业： 生物技术 设计(论文)题目：复合混凝剂处理石油化工二级出水的 讨论 指导老师： 陈英文 副教授 2025年 6 月 2日复合混凝剂处理石油化工二级出水的讨论摘要本文考察了不同混凝剂对石油化工生化出水的混凝效果，并针对不同混凝剂的特性复配，对复配组分的种类、加量、pH、混凝剂总加量进行了讨论。结果表明，复合混凝剂PAFS+FS+PAM 比单独的混凝剂处理效果有显著的提高，该体系最佳混凝条件为 pH＝7.0、m（FS）∶m（PAFS）＝3:7（总加量保持 200 mg/L）、沉降时间约为 0.5h。在此条件下 COD 去除率达 51.3% ，TOC 去除率高达 31%，水质达到污水综合排放标准的一级标准(GB 8978—1996）；在 PAFS 和 FS 复配的基础上加入 200mg/L 污水的高岭土，COD 去除率可达 60%。关键词：石油化工二级出水 混凝 复合混凝剂Research of the secondary effluent of petrochemical treatment using complex coagulantAbstractThis text inspect the coagulation effect of petrochemical effluent using different coagulants.According to the characteristic of different coagulations,they can be mixed. The kind,increased amount,pH and the total amount of coagulant have been studyed.It is indicated that the coagulative result of the complex coagulant is extraordinary better than independent coagulation. The complex coagulant is PAFS+FS+PAM.The optimal coagulative condition of the system is that pH=5, m（FS）:m（PAFS）＝3:7(the total increased amount is 200mg/L ) and the settlement time is 0.5h.In this condition,the COD removal can reach 51.3% and the TOC removal can reach 31%.The effluent quality can meet the requirements of the Firstclass Standard of Integrated Wastewater Discharge Standards(GB 8978—1996）.COD removal can reach 60% with adding 200mg/L Kaolin on the base of the complex of PAFS ...
