化工学报 ›› 2015, Vol. 66 ›› Issue (12): 4916-4921.DOI: 10.11949/j.issn.0438-1157.20151426

• 过程系统工程 • 上一篇    下一篇

考虑环境及处理单元流股回用的多性质用水网络集成

杨彩玲1, 刘琳琳1,2, 都健1   

  1. 1 大连理工大学化工系统工程研究所, 辽宁 大连 116024;
    2 大连理工大学环境学院工业生态与环境工程教育部重点实验室, 辽宁 大连 116024
  • 收稿日期:2015-09-09 修回日期:2015-09-30 出版日期:2015-12-05 发布日期:2015-12-05
  • 通讯作者: 都健
  • 基金资助:

    国家自然科学基金项目(21406026);辽宁省自然科学基金项目(2014020007)。

Water utilization networks integration with multiple-property based on environment and treated water reused

YANG Cailing1, LIU Linlin1,2, DU Jian1   

  1. 1 Institute of Process Systems Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China;
    2 Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education(MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2015-09-09 Revised:2015-09-30 Online:2015-12-05 Published:2015-12-05
  • Supported by:

    supported by the National Natural Science Foundation of China(21406026) and the Natural Science Foundation of Liaoning Province, China(2014020007).

摘要:

水资源的日益匮乏和更为严格的废水排放法律法规促使过程工业必须重视节水减排问题,而传统的用水网络综合仅将杂质浓度作为约束物料回用的限制因素,忽略流股的性质或功能对流股回用的影响,不足以反映实际的工业生产要求。因此,开展用水网络的多性质集成问题研究具有重要的现实意义。本文在考虑环境问题的多性质用水集成超结构模型基础上,增加了对废水流股性质处理中部分流股依次回用给阱单元使用的过程。该方法以最小年度总费用为目标函数,建立了考虑环境和过程流股性质的直接回用及经过处理单元后流股回用的混合整数非线性规划(MINLP)模型,并将其用于实例计算,结果表明本文方法在降低年度总费用的同时还减少了新鲜水使用量及废水排放量,验证了本文方法的有效性及优越性。

关键词: 用水网络, 多性质, 回用, 集成, 废水, 优化

Abstract:

With an increasing shortage of water resources, more rigid regulations regarding waste water discharge, water saving and discharge reduction have become more and more valued by industries. However, the traditional water utilization networks only regard impurity concentration as the restricting factor for controlling material reuse and overlook the effect of stream's characteristic or function on its reuse, thus unable to reflect the actual industrial production requirement. Therefore, it is of great significance to look into the multiple-property integration of water utilization networks. In this paper, a method is proposed where the super structure model of multiple-property water utilization considering the environment problems is presented as a basis, on which a process is added to reuse part of streams in the treated water stream characteristic process for the sinks. This method takes the minimum annual cost as the target function and builds the mixed integer non-linear programming mathematical model with the consideration of environment, the direct reuse of stream in the process and reuse of stream from treated water. The model is then evaluated, whose result reveals that this method reduces not only the annual total cost but also the use of fresh water and waste water discharge, validating the efficacy and superiority of the proposed method.

Key words: water utilization networks, multiple-property, reuse, integration, waste water, optimization

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