中文摘要：

在污水再生回用中,随着处理深度的增加,再生水的水质不断上升,可匹配的水阱增加,但污水回用的再生率也相应下降,可回用水量减少。本文将再生率和再生后浓度关联,建立具有多个双出口再生单元再生循环水网络模型,并通过求解具体案例,详细说明夹点法确定具有多个双出口再生单元的再生循环水网络的流率目标值的优化设计步骤。模型规定了用水系统、再生系统及环境系统各自与相互之间的关系,通过物料平衡分析计算和图形表示方法,实现多个再生单元同时供水。再生循环的应用和网络优化,使用水系统达到新鲜水用量最少,且同时满足环保法规的要求。

英文摘要：

In a water network with regeneration recycling, with deeper treatment, the quality of reclaimed water is rising, and more water sinks can be matched, but the regeneration rate is declining. In this paper, the concentration after regeneration was related to the regeneration rate, and a model of regeneration recycling water networks with multiple double outlets regeneration units was built. By solving an example case, a method of optimizing regeneration recycling water networks with multiple double outlets regeneration units was proposed. The model provides the water using system, regeneration system and environment system and the relationship between each other. Graphical representations, as well as analytical algorithms, are proposed to ensure multiple regeneration units supply reclaimed water at the same time. Applying the concept of regeneration and recycling of wastewater, the network consumes minimum freshwater while discharges wastewater satisfying environmental regulations.