污水处理厂工艺设计--倒置AAO工艺 - 毕业论文.doc

大连 * * 大学 毕业设计（论文） 题目：大连市污水处理厂工艺设计--倒置AAO工艺 姓　　 名 系 别、 专 业 导 师 姓 名、职 称 完 成 时 间 ABSTRACT The topic of this graduate design is about the design of the sewage treatment plant in the development area of economy and techonology in Da lian City. The technics of the plant is the inverted AAO process. The main task is the primary design of the plant and the shop drawing of the oxidation ditch pond. The task of the primary design is that a design book、a plan of the plant、the high drawing of the of sludge and sewage; In the single disposal build design, the harvest is that the section plane drawing、the plan and some part magnifying drawings of the inverted AAO process. The construction of this plant is 70000 ton per day. The process of the sewage in the plant is that: The sewage runs from pump house to sand sinking pond, enters the pond of sedimentation tank, enters disinfection pond, then enters calculation trough, at last lets out. The process of the sludge is that: Surplus sludge from the sedimentation tank enters concentration pond, enters digestion pong, then it is dehydrated, at last it is carried out of the plant. The outlet water of the plant meets the level two of the National Sewage Discharge Standard (GB8978-1996). There is an inverted AAO process prevents sludge from eapending, promots releasing phosphorus ,and strengthens anti-nitration. Key words：The inverted AAO process Taking off the nitrogen and the phosphorus 目 录 摘 要 I ABSTRACT II 前 言 1 第一部分 设计说明书 2 第一章 设计概论 2 1.1 设计任务 2 1.2 设计目的 2 1.3 设计要求 2 1.4 设计数据及材料 3 1.5 处理程度的计算 4 第二章 总体设计 5 2.1 工艺比较选择 5 2.2 主要生产构筑物工艺设计 16 2.2.1 格栅间 16 2.2.2 污水提升泵房 16 2.2.3 沉砂池 16 2.2.4 倒置AAO池 17 2.2.5 鼓风机房 17 2.2.6 二次沉淀池 17 2.2.7 接触消毒池 18 2.2.8回流污泥泵房 18 2.2.9 污泥浓缩池 18 2.2.10 脱水车间 19 第三章 污水处理厂总体布置 20 3.1 污水厂平面布置 20 3.1.1 污水处理厂平面布置的原则 20 3.1.2 污水处理厂的平面布置 22 3.2 污水厂的高程布置 22 3.2.1 污水处理厂高程的布置方法 22 3.2.2 本污水处理厂高程计算 24 第四章 组织结构与人员编制 27 第五章 污水厂投资估算 28 5.1 土建部分 28 5.2 设备部分 29 5.3 总投资费用 29 5.4 经