分散式污水再生回用系统优化分析

Optimization of the decentralized sanitation and reuse system

运用系统动力学的方法,建立了分散式污水再生回用系统供需水之间相互关系的动态、非线性模型.以居民小区为例,在对小区分散式污水再生回用系统进行系统分析的基础上,预测了未来小区自来水用水状况、污水处理回用的需求情况、回用水处理工程的发展规模.表明开展分散式污水回用工程可在不降低居民生活用水标准的情况下,减少自来水的消耗,确定了较合理的污水回用规模.

With the application of system dynamics, a dynamic, nonlinear model was developed in this paper in order to reflect the relationships of decentralized water use and reclaimed water supply and demand. Through a system analysis, the model was applied for predicting and analyzing the future fresh water use to the example of the resident district, reused water demand and supply and the sige of water treatment projects. It illustrated that wastewater decentralized reuse can decrease fresh water consumption, ensure rational reuse water treatment size. The paper also predicts systematic relevant influencing factors including water pricing and consumers' acceptable degree of reuse water.