Imperial College London


Faculty of EngineeringDepartment of Chemical Engineering

Professor of Process Systems Engineering



b.chachuat Website




609Roderic Hill BuildingSouth Kensington Campus






BibTex format

author = {Seong, Khor C and Chachuat, B and Shah, N},
doi = {10.1016/B978-0-444-59519-5.50008-3},
pages = {36--40},
title = {Optimal water network synthesis with membrane separation-based regenerators},
url = {},
volume = {30},
year = {2012}

RIS format (EndNote, RefMan)

AB - This article is concerned with the water network synthesis problem. We propose a superstructure that consists of three layers similar to a pooling problem: sources for reuse/recycle; regenerators for contaminants removal; and sinks for acceptance of water for direct or regeneration-reuse/recycle. The superstructure accounts for membrane separation-based regenerators such as ultrafiltration and reverse osmosis. Linear models are developed for the membrane regenerators. A MINLP is then formulated based on the superstructure to determine the optimal interconnections in terms of total flowrates and contaminant concentrations. Computational experiments are performed using GAMS/BARON on an industrial case study of a petroleum refinery water system. We include model-tightening linear logical constraints to enhance solution convergence, resulting in a globally optimal water network that promotes 27% savings in freshwater use. © 2012 Elsevier B.V.
AU - Seong,Khor C
AU - Chachuat,B
AU - Shah,N
DO - 10.1016/B978-0-444-59519-5.50008-3
EP - 40
PY - 2012///
SN - 1570-7946
SP - 36
TI - Optimal water network synthesis with membrane separation-based regenerators
UR -
VL - 30
ER -