Optimization of Hybrid Desalination Processes Including Multi Stage Flash and Reverse Osmosis Systems

MARCOVECCHIO, MARIAN GABRIELA; MUSSATI, SERGIO FABIÁN; SCENNA, NICOLÁS JOSÉ; AGUIRRE, PÍO ANTONIO

Desalination, Trends and Technologies

Editorial Collegiums

Año: 2010; p. 311 - 334

This work addresses an optimization model of Hybrid Desalination Processes including MSF and RO systems. All the possible configurations for both processes are considered. Hybrid RO-MSF desalination systems have potential advantages of a higher overall availability, low power demand, and improved water quality. In this work a mathematical model of a hybrid desalination plant including MSF(OT) and RO process is presented. The objective is to determine the optimal process design and operating conditions for given fresh water demand and seawater conditions. Both RO and MSF systems are modeled in a rigorous way. The resulting mathematical model contains inherently nonlinear and non-convex constraints. The solution obtained by the proposed mathematical model provides the basic design of the hybrid MSF(OT)-RO desalination plant. Several case studies are presented to illustrate the application of the proposed model.