8WANG Y P, SMITH R. Wastewater minimization[J]. Chem Eng Sci, 1994, 49(7): 981-1006.
9HUANG C H, CHANG C T, LING H C, et al. A mathematical programming model for water usage and treatment network design [J]. Industrial & Engineering Chemistry Research, 1999, 38 (7) :2666-2679.
10ZHENG P Y, FENG X, QIAN F. Water system integration of a chemical plant[J]. Energy Conversion artd Management, 2006, 47 (15/16) : 2470-2478.