新型大学校园用水系统的优化分析——以东北大学为例

Analysis and Optimization of College's Daily Water System——Case of NEU

用SFA法分析了东北大学的用水结构和用水现状.结果显示,当前东北大学人均用水量为106.7 t/a,循环用水量少,水质污染主要是悬浮物和氮磷污染物,经简单处理后可直接回用.基于校园内各部门水量水质监测,提出一种可行的优化方案,实现人均用水量减低到92.1 t/a,可节约总用水量的13.7%,人均排水量减至86.7 t/a;若推广至全国所有高校,总节水量约78.4×M t/a,节水效果显著,减少了环境污染和水处理成本.

SFA （substance flow analysis） method was used to analyze the water-use system in NEU. The results showed that the current water consumption per person is 106. 7 t/a, and almost no recycling water is used. Besides, the main pollutants in water include suspended substance and nitrogen/phosphorus pollutants, which can be removed by simple treatment process and the water recyclable. Based on the water quality inspection for different departments, an optimization plan was put forward to reduce the water consumption per person to 92. 1 t/a, and the total water consumption can be cut down by 13.7% , and the water drainage per capita can be reduced to 86. 7 t/a. Predictably, an amount of water saving can be up to 78.4 x 106 t/a if some simple drainage equipments and plan are applied in all universities in the whole country, which would dramatically reduce the environmental oollution and water treatment costs.