Water pinch analysis

Water pinch analysis (WPA) originates from the concept of heat pinch analysis. WPA is a systematic technique for reducing water consumption and wastewater generation through integration of water-using activities or processes. WPA was first introduced by Wang and Smith.[1] Since then, it has been widely used as a tool for water conservation in industrial process plants. Water Pinch Analysis has recently been applied for urban/domestic buildings.[2] It was extended in 1998 by Nick Hallale at the University of Cape Town, who developed it as a special case of mass exchange networks for capital cost targeting.

Techniques for setting targets for maximum water recovery capable of handling any type of water-using operation including mass-transfer-based and non-mass-transfer based systems include the source and sink composite curves (Nick Hallale (2002). A New Graphical Targeting Method for Water Minimisation. Advances in Environmental Research. 6(3): 377–390) and water cascade analysis (WCA).[3] The source and sink composite curves is a graphical tool for setting water recovery targets as well as for design of water recovery networks.[4]

See also

References
  1. Wang, Y. P. and Smith, R. (1994). Wastewater Minimisation. Chem. Eng. Sci. 49, 981–1006.
  2. Manan, Z. A., Wan Alwi, S. R. and Ujang Z. (2006). Water pinch analysis for urban system: a case study on the Sultan Ismail Mosque at Universiti Teknologi Malaysia (UTM) . Desalination. 194: 52–68.
  3. Manan, Z. A., Foo, C. Y. and Tan, Y. L. (2004). Targeting the Minimum Water Flowrate Using Water Cascade Analysis Technique, AIChE Journal, Volume 50, No. 12, 2004.
  4. Wan Alwi, S. R. and Manan, Z. A. (2008). Generic Graphical Technique for Simultaneous Targeting and Design of Water Networks . Ind. Eng. Chem. Res. 47 (8): 2762–2777. doi:10.1021/ie071487o.

5. Hallale, Nick. (2002). A New Graphical Targeting Method for Water Minimisation. Advances in Environmental Research. 6(3): 377–390

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