城市自来水厂工艺设计计算说明书.pdf

城市自来水厂工艺设计 计算说明书 摘要：水资源是一种宝贵的而且有限的资源。随着社会经济的高速发展与城市化 进程的加速，水源污染的问题日趋严重，生活饮用水中有毒有害物质明显增加， 而人类对于水的需求只增未减。目前，我国的水资源污染情况严重，加剧了水资 源的贫乏局面。因此，对水资源的合理开发利用，受到普遍关注和重视。到20 世纪初，饮用水净化技术已基本形成了现在被人们普遍称之为常规处理工艺的处 理方法，即混凝、沉淀或澄清、过滤和消毒。这种常规处理工艺至今仍被世界上 大多数国家所采用，成为目前饮用水处理的主要工艺。本开发区原水的色度、浊 度、细菌总数、大肠菌群等指标有所超标，但是重金属离子、有机物等污染指标 正常，因此按照常规处理工艺（混凝、沉淀、过滤、消毒）即可，不仅略去深度 处理工艺的设计与施工，同时大幅降低了成本与建设难度。设计内容包括了水处 理工艺的选择、具体构筑物的选择和计算、平面与高程布置。 关键词：管式静态混合器；机械絮凝池；平流式沉淀池；V 型滤池；液氯消毒。 The technological design of the water plan Abstract: Water resource is a kind of precious and limited resources. With the rapid development of social economy and the acceleration of urbanization, the problem of water pollution becomes worse and worse, toxic and harmful substances in drinking water increased significantly, while human demand for water will only increase. At present, the pollution of water resource, aggravated the poverty situation of water resources. Therefore, for the rational development and utilization of water resources, by the widespread concern and attention. To the beginning of the 20th century, drinking water purification technology has been basically formed is now widely known as a conventional treatment process of processing methods, namely, coagulation, precipitation or clarification, filtration and disinfection. The conventional treatment process is still been adopted by most countries in the world and become the main technology of water treatment. This development zone chromaticity and turbidity of raw water, total bacterial count, coliform bacteria and other indicators are overweight, but heavy metal ions, organic pollution index such as normal, so according to the conventional treatment process (coagulation, sedimentation, filtration, disinfection) can, not only omit depth treatment t