A regional linear programming model with technological,economic and resource constraints was established to carry out optimal analysis on wastewater reuse potential in China.The regional disparities in wastewater reuse potential were compared and effects of different water tariffs on estimated reuse volumes were explored.The result indicates that the current total optimized capacity of wastewater reuse is around 17.8×10~8 m~3/a,most of which are located in northeast,southeast,and north China.Specifically,th...