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A cost effective minimum water network model for intra and interplant system

Wan Alwi, Sharifah Rafidah and Ching, H. H. and Handani, Z. B. and Abd Manan, Zainuddin and Hashim, Haslenda (2011) A cost effective minimum water network model for intra and interplant system. In: 2011 4th International Conference on Modeling, Simulation and Applied Optimization (ICMSAO). IEEE Explore, pp. 1-7. ISBN 978-145770005-7

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Official URL: http://dx.doi.org/10.1109/ICMSAO.2011.5775546

Abstract

This paper presents a mathematical model for a cost effective minimum water network for intra and interplant involving multiple contaminants for a set of process plants. A generic mixed integer non-linear programming (MINLP) model has been developed based on water network superstructure to targets and design minimum water network for retrofit design. The model includes all levels of the water management hierarchy (i.e. source elimination, source reduction, direct reuse/ outsourcing of external water, regeneration reuse and fresh water) and is set to achieve a payback period criteria set by the designer to ensure cost effectiveness of the solution. The approach is illustrated by using an inter-plant case study involving a semiconductor and a chlor-alkali plant. The results show that the new freshwater and wastewater targets are 14.99 t/hr and 2.94 t/hr respectively with capital cost of USD 276,900 and payback period of 3 years. This represents a 54.90% increment in freshwater reduction as compared to Handani et al [1] and Wan Alwi et al [2].

Item Type:Book Section
Uncontrolled Keywords:cost effective, interplant, intraplant, mathematical modeling, water minimisation
Subjects:G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:27988
Deposited By: Liza Porijo
Deposited On:23 Oct 2012 03:38
Last Modified:23 Oct 2012 03:38

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