Graphically based analysis of water system with zero liquid discharge
Based on graphical method, this paper proposed the necessary conditions of zero liquid discharge (ZLD) and optimized the corresponding regenerated flowrate and regeneration concentration for single contaminant water system with fixed mass load. As far as the water system without water loss is concerned, ZLD can be accomplished when the post-regeneration concentration is not higher than the minimum limiting inlet concentration of all the operations. Moreover, considering the water system with water loss, the formulations for calculating the optimal targets (the optimal regenerated flowrate and the optimal regeneration concentration) for ZLD are deduced. The maximum post-regeneration concentration for ZLD was defined. If the post-regeneration concentration is not higher than it, ZLD is feasible. The optimal zero discharge water network is constructed with a given post-regeneration concentration.
water system integration zero discharge regeneration recycle fixed mass load
Chun Deng Xiao Feng Jie Bai
Department of Chemical Engineering,Xi’an Jiaotong University,Xi’an
国际会议
西安
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）