1、 毕业设计(论文)毕业设计(论文) 题题 目:目: 500m3/d 垃圾渗滤液处理工程设计垃圾渗滤液处理工程设计 学学 院:院: 环境与化学工程学院环境与化学工程学院 专业班级:专业班级: 2009 级级环境科学环境科学(2)班班 指导教师:指导教师: xx 职称职称: 教授教授 学生姓名:学生姓名: 学学 号:号: 1 摘摘 要要 垃圾渗滤液水质的主要特点是含有大量的有机物,COD,BOD 含量较高,属高浓 度有机废水,故其生化需氧量也较大。该垃圾渗滤液填埋场厂的处理水量为 500 dm/ 3 , 原 渗滤 液中 各项 指 标为 : BOD 浓度 为 20004000mg/L,COD 浓度
2、为 600010000mg/L,SS 浓度为 600mg/L。 因此为了有效去除污染物,本次渗滤液处理设计包括一级预处理、二级生物处理和 深度处理。本设计工艺流程为: “格栅调节池吹脱塔调节池ABRSBR混 凝沉淀活性炭吸附消毒” 。 整个工艺具有总投资少,处理效果好,工艺简单,占地面积省,运行稳定,能 耗少的优点。 排放后浓度可以达到国家 2008 年 7 月 1 日正式实施的中华人民共和国生 活垃圾填埋场污染控制标准 (GB16889-2008)的水污染物排放浓度限值。 关键词:关键词:垃圾渗滤液处理, ABR , SBR 2 ABSTRACT The main feature of la
3、ndfill the leachate by water is rich in organic matter, COD , BOD ,content is high , a high concentration organic wastewater , so the BOD is also larger. The water which needs to treatment in the landfill leachate waste water treatment plant is500dm/ 3 , Various target in the raw waste water is: the
4、 concentration of BOD is20004000mg/L, the concentration of COD is 600010000mg/L, the concentration of SS is 600mg/L. After the analysis, the quality of this processing water belongs to the waste water that easy biology degrade and not have the obvious poison, could use two levels of biological treat
5、ments to cause the water drained meet the designated standard. The technological process of this design is: Landfill leachate waste water Grille The regulation pool Stripping tower The regulation pool Reaction tank of ABR Tank of SBR Mixing tank flocculation tank sedimentation tank activated carbon
6、adsorption tower disinfection poll Treatment water The entire technological process have the characteristics of lower investment, good treatment effect, easy technology process ,using small area, running steady, and consuming lower energy. It request the landfill the leachate waste water which drained must be strictly treated to the two effluence standard in the country, which is