【作者】 刘小英；

【导师】 黄廷林；

【作者基本信息】 西安建筑科技大学 ， 市政工程， 2003， 硕士

【摘要】 十九世纪以来人类社会的高速发展，加剧了水体的污染和水资源的短缺，严重制约了社会的进一步发展。污水回用是大家公认的解决水资源不足和抑制水环境污染最有效的方法之一。国内外对它的系统研究，近几年才开始的，尤其是再生水价格研究可以说是空白，而价格正是影响再生水的使用和推广主要因素之一。 本文从污水再生回用系统出发，分析了再生水系统的构成(水源、水质、水量、价格等)，着重对再生水费用进行了研究。首先在再生水使用原则(水量充足，水质合格，价格合理)的基础上，结合西北地区的特点，通过分析再生水的潜在用户，初步确定了再生水的用户为城市工业用水中的冷却用水及其补充水，城市生活用水中的冲厕用水，洗车等杂用水和景观生态用水，由此给出了再生水的水质要求。然后重点论述了再生水的成本价格，应用再生水的生产成本价格模型，将再生水成本分为总投资(包括处理设施和管网两部分投资)折旧费和年运行费(包括电费、药剂费，大修理费等)两部分。运用最小二乘法对费用资料进行线性回归，得到几种传统处理工艺下的投资模型和管這投资模型，并运用实例和统计资料对投资模型进行了验证。然后结合对年运行费的分析，给出再生水的成本价格AC与流量Q、管长L的函数关系式。论文最后运用建立的模型对西宁市进行了实例分析，得出了西宁市近期再生水规模为6.2万m~3／d，总投资为2469.25万元，吨水投资为398.3元／m~3，制水成本为0.46元／m~3。更多还原

【Abstract】 From the last century, with the development of the human society, the problem of water shortage & water environment pollution had severely holdbacked the society progress. Wastewater reuse is taken for an available approach to solve water shortage & control water body contamination. At home and abroad research on the wastewater reuse system just come forth in recent years, Especially reclaimed water price, which is known as one of the main factors of the reclaimed water utilization, is hardly studied.The constitution of the reclaimed water system, which includes water source, water quality, water flow, water price and so on, is analyzed, and reclaimed water cost is emphasized in the paper. Firstly on the basis of reclaimed water utilized principal (i.e. sufficient water quantity, qualified water quality & rational water price)& northwest peculiarity, reclaimed water users are defined. And reclaimed water can be used in cooling water & supplementary in civil industrial consumption, flushing out lavatory & automobile and so on, & beautify the environment. Water quality standard of northwest region is supposed. Secondly reclaimed water self-cost price is stressed. By the analysis of several academic models operating self-cost model of reclaimed water is structured. Total cost includes depreciation cost of total investment & running cost including electricity cost, medicament cost, heavy repair cost and so on. During the process method of least squares is used to treat the charge date. And the investment function of several conventional treatment processes & pipeline of the reclaimed water is deduced & tested by some examples. Finally by applying to the foregoing conclusion in xi’ning city, some date is acquired, such as wastewater reuse scale: 62 × 103m3/d,total investment: 24.6925 million￥, unit investment: 398.3 ￥/t, cost unit price: 0.46 ￥/m3.更多还原