1、 *市给水厂工艺的初步设计 摘 要 水是生命的源泉，没有水人类就不能生存。正常的供水系统是一个现代化 城市不可或缺的基础设施，是城市生命线工程的重要组成部分。本文通过对安 哥拉罗安达市目前的饮用水系统的现状及存在的问题进行分析，指出了建设给 水厂的必要性与迫切性。 在本文中，首先分析了国内外饮用水水源现状，介绍了给水处理工艺的发 展；在水源地现状调查的基础上，对罗安达市水源水质进行了分析,采用 Bengo 河作为原水水源，水厂规模为 60,000m3/d。其次，经过比较，提出了给水厂工 艺流程推荐方案混凝沉淀过滤消毒，混凝采用静态管道混合器和折板絮 凝反应池，沉淀采用斜管沉淀池，过滤采用 V
2、型滤池，消毒采用氯气消毒，并 对各个反应池进行了设计计算。最后，运用 AutoCAD 软件，绘制主体构筑物图， 设计深度为初步设计。 关键词:供水系统 处理技术 初步设计 The Preliminary Design of the Waterworks Process of Angola, Luanda, Africa ABSTRACT Water is the source of life, and humanbeings without water cannot exist. The normal water supply system is one of the indispensabl
3、e infrastructures and an important component for modern urban. Based on the analysis of Luanda citys water supply status, the necessity and urgency of building the waterworks are indicated. In this paper, the current domestic of drinking water sources was analyzed and the development of water treatm
4、ent technology was presented. On the basis of water sources investigation, we analyzed the resource of the waterworks of Luanda and chose Bengo reservoir as the resource to build a waterworks with the scale of 60,000 m3/d. Secondly, by comparison,coagulationsedimentationfiltrationdisinfection was re
5、commended as the technical procedure of the waterworks, the static channel mixer board and baffled plate flocculation tank was chosen as coagulation technology, the slanted tube sedimentation tank was used as sedimentation,filtration was the V filter pond, disinfection was used with chlorine , then
6、each reaction pool was calculated and designed. Finally, with the help of AutoCAD software, the main structures were rendered and design depth for the preliminary design. Key Words: Water Supply System Treating Techniques Preliminary Design 目 录 第一章 总论 . 1 1.1 罗安达市概况及供水现状 . 1 1.1.1 罗安达市概况 1 1.1.2 罗安达市供水现状 1 1.2 项目建设的必要性 . 2 1.3 项目的主要研究内容及设计原则 . 2 1.3.1 工程设计内容 2 1.3.2 设计原则 2 第二章 给水厂发展状况 3 2.1 水源水质现状分析 . 3 2.2 给水厂工艺发展 . 3 第三章 给水厂总体设计 5 3.1 设计规模 . 5 3.2 取水水源及水质分析 . 5 3.2.1 供水水质分析 5 3.2.2 水处
