摘  要：本设计为周口市新城区拟建自来水厂给水处理工艺，计划建造水厂的处理量为50万m3/d。以南水北调中线为水源，设计的主要内容包括：研究状况、设计水量的确定、工艺流程的确定、工程论证、预处理工艺、投药系统、隔板絮凝池、平流沉淀池、配管及清水池的计算，最后绘制主要构筑物的平面图和剖面图。本次设计选用臭氧为消毒剂，聚合氯化铝为絮凝剂，活性炭为吸附剂。在满足出水质标准《生活饮用水卫生标准》(GB5749-2014)下，采用的工艺流程为：原水→一级泵站→往复式隔板絮凝池→平流沉淀池→快滤池→清水池→二级泵房→用户。83106

毕业论文关键词：工艺设计；水源水质；设计水量；用水量；臭氧

The Design of 500,000 m3/d City Water Supply Plant

Abstract: This design was the treatment process of water supply plant of Zhoukou new district, its treatment scale was 500,000 m3/d。 The middle line of the south-to-north water transfer project was used for water source。 The key contents of this design contained the research status, the determination of design flow, the project argumentation, the pretreatment process, the technological process, the drug delivery systems, the clapboard flocculation pool, the advection sedimentation tank, the piping and the calculation of the clear water reservoirs，the plan and section of main structures。 Ozone, poly aluminium chloride, activated carbon were respectively used as disinfector, the flocculant, the adsorbent in this project design。 The effluent quality must strictly meet “the health standard for domestic drinking water”《GB5749-2014》。 The whole treatment process was: the source of the water →a pumping station → reciprocating baffled flocculation → advection sedimentation tank → rapid filter→ clean water tank→ secondary pump→ user。 

Key Words: Process design; Water resources quality; design flow; Water consumption; Ozone

目    录

摘  要 1

1 绪 论 1

1。1选题背景及意义 1

1。2 国内外研究进展 2

2 研究区域状况 2

2。1城区状况 2

2。2城区人口数量 3

2。3城区的地位 3

2。4 市区供水概况、存在问题、用水量预测 3

3 工程方案论证 4

3。1 设计方案建立 4

3。2 工艺设计方案确定 4

4自来水厂工程计算 6

4。1设计水量 6

4。2投药系统 6

4。3臭氧投加量 6

4。4 隔板絮凝池 7

4。5 平流沉淀池 8

4。6 清水池 9

4。7 取水方案设计 10

5 工程概预算及经济社会效益 11

5。1工程概预算 11

5。2经济社会效益 13

参考文献 13

致  谢 15

50万m3/d城市自来水厂处理工艺设计1 绪 论

1。1选题背景及意义