Optimization analysis of decentralised sanitation and re-use system.
With the application of system dynamics, a dynamic nonlinear model reflecting the relationship between decentralised water use and reclaimed water supply and demand has been established. Through a system analysis, the model has been applied to a small residential district to predict and analyse the situation of future use of fresh water, demand and supply of re-used water, and treatment scale of reclaimed water. It is illustrated in this paper that wastewater decentralised treatment and re-use can decrease the consumption of fresh water without lowering the standard of living water for the district residents. On this basis, a rational scale and construction time of the decentralised sanitation and re-use system have been determined. Also, the paper predicts the influencing factors of the increasing water cost and changes in consumers' acceptability to re-use water in the decentralised sanitation and re-use system.
Huang
Ting-Lin
TL
School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, China.
Xu
Zhi-Qiang
ZQ
Wang
Xiaochang C
XC
Zhang
Hui
H
D002681:China; D003247:Conservation of Natural Resources / Q000191:economics / Q000639:trends; D003365:Costs and Cost Analysis; D008962:Models, Theoretical; D018508:Water Purification / Q000191:economics / Q000592:standards; D014881:Water Supply / Q000191:economics / Q000592:standards*