Lim Seong-Rin, Park Jong Moon
Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
J Environ Manage. 2009 Mar;90(3):1454-62. doi: 10.1016/j.jenvman.2008.09.005. Epub 2008 Nov 12.
Synthesis of distributed wastewater treatment plants (WTPs) has focused on cost reduction, but never on the reduction of environmental impacts. A mathematical optimization model was developed in this study to synthesize existing distributed and terminal WTPs into an environmentally friendly total wastewater treatment network system (TWTNS) from a life cycle perspective. Life cycle assessment (LCA) was performed to evaluate the environmental impacts of principal contributors in a TWTNS. The LCA results were integrated into the objective function of the model. The mass balances were formulated from the superstructure model, and the constraints were formulated to reflect real wastewater treatment situations in industrial plants. A case study validated the model and demonstrated the effect of the objective function on the configuration and environmental performance of a TWTNS. This model can be used to minimize environmental impacts of a TWTNS in retrofitting existing WTPs in line with cleaner production and sustainable development.
分布式污水处理厂（WTPs）的综合一直侧重于降低成本，而从未关注过环境影响的减少。本研究开发了一个数学优化模型，从生命周期的角度将现有的分布式和终端污水处理厂综合成一个环境友好型的总污水处理网络系统（TWTNS）。进行了生命周期评估（LCA）以评估TWTNS中主要贡献者的环境影响。LCA结果被纳入模型的目标函数。从超结构模型制定了质量平衡，并制定了约束条件以反映工业工厂的实际污水处理情况。一个案例研究验证了该模型，并展示了目标函数对TWTNS的配置和环境性能的影响。该模型可用于在根据清洁生产和可持续发展对现有污水处理厂进行改造时，将TWTNS的环境影响降至最低。
