城市污水处理厂工艺方案选择技术经济分析

Technical and Economic Analysis on the Selection of Municipal Sewage Treatment Schemes

城市污水处理厂需要较大的投资和运营费用。在我国目前经济条件比较落后,怎样用最少的钱达到最佳的处理效果非常关键。污水处理厂建设中最重要的就是污水处理工艺的选择。通过工程预算得到不同工艺不同规模的处理方案的总费用,通过曲线拟和得到不同工艺的费用和规模的函数关系式。根据技术经济学原理,将污水治理项目的费用和削减污染物的数量相联系,对项目的费用流和削减污染物负荷流进行贴现计算。

Municipal sewage treatment needs much investment and running costs.So how to reach the optimal treatment effects with low costs is especially key under this backward conditions in China.The selection of sewage treatment processes is important in the construction of sewage treatment plants.This essay shows the whole expense of the different treatment schemes through the project budge,and uses curves to obtain the mathematical models of different technical charges and scales.The link between the cost of sewag treatment projects and the reduction d pollutants is built up though the theory, of technological economics and then the discounted cash calculations between project cost flow and pollutants reduction burden flow arc conducted.