运用二分法设计具有再生再利用的多杂质水网络Dichotomization Designing Method for Water-Using Networks with Multiple Contaminants and with Regeneration and Reuse
王焕云,潘春晖,范小振,田云奎,刘树恒
摘要(Abstract):
为了优化具有再生再利用的多杂质水网络设计,提出一种二分法设计方法。即认为所有过程仅包含不使用和使用再生水的过程,假设前者完全使用新鲜水,根据过程的源水流值可算出初始再生浓度C~0_(reg),其流量待定,然后基于再利用的设计方法进行设计。完成本次迭代后,以未回用的源水流即为再生前水流,将其流量与再生水用量进行比较,数值较小者与再生水量的初值构成一个区间,用二分法确定出再生水量,据此选择浓度势较小的再生前水流,并计算出再生浓度C~i_(reg),直至{C~i_(reg)}收敛时结束。并对文献中几个实例进行计算,结果表明此方法设计步骤简捷、计算量小,且设计的新鲜水用量和再生浓度比文献的设计值低。
关键词(KeyWords): 多杂质用水网络;再生再利用;二分法;废水最小化
基金项目(Foundation): 河北省自然科学基金(B2015110004);; 河北省科技计划项目(15274514);; 河北省高等学校科学技术研究项目(Z2015128)
作者(Author): 王焕云,潘春晖,范小振,田云奎,刘树恒
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