Mathematical model of water quality rehabilitation with rainwater utilisation: A case study at Haigang

C. L. Wu, Kwok Wing Chau

Research output: Journal article publicationJournal articleAcademic researchpeer-review

95 Citations (Scopus)


This paper presents a mathematical model of water quality rehabilitation by utilising rainwater, which is separated into initial polluted rainwater and later unpolluted rainwater. The planned Haigang city, belonging to Shanghai metropolis in China, is taken as a case example. An analysis is made on how to utilise rainwater and appraise its function in a water quality rehabilitation scheme. It is demonstrated that this method can significantly reduce both project investment and operation costs. Moreover, appropriate drainage plan scheme is presented to address the initial polluted rainwater problem. Thus, the conflict between drainage and rainwater utilisation can be resolved appropriately.
Original languageEnglish
Pages (from-to)534-545
Number of pages12
JournalInternational Journal of Environment and Pollution
Issue number3-4
Publication statusPublished - 18 Dec 2006


  • Drainage planning
  • Mathematical model
  • Rainwater utilisation
  • Wastewater treatment plant
  • Water quality index
  • Water quality rehabilitation
  • WQI

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Pollution
  • Management, Monitoring, Policy and Law

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