A Note for the Extended P-Graph Model for the Synthesis of Batch Water Network

Dominic C.Y. Foo, Lee Xiuan Chew, Tan Lim Chong, Wei Heng Teh, Hon Loong Lam, Amelie Peter Affery, Cheng Heng Pang

Research output: Journal PublicationArticlepeer-review

8 Citations (Scopus)


Most methods developed for water minimization for batch processes were reported based on pinch analysis and mathematical programming. In this work, a recently developed P-graph methodology for direct water reuse/recycle is extended for batch water network. The model allows direct water reuse/recycle when water sources and sinks are both located in the same time intervals, or stored for later use through water storage tank. A literature example is used to demonstrate the extended model. The important feature of P-graph is demonstrated through alternative solutions for the batch water network, with different numbers of water storage tanks.

Original languageEnglish
Pages (from-to)675-686
Number of pages12
JournalProcess Integration and Optimization for Sustainability
Issue number3
Publication statusPublished - Sept 2021


  • Direct reuse/recycle
  • Process optimization
  • Process synthesis
  • Resource conservation
  • Waste minimization
  • Water recovery

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Geography, Planning and Development
  • Chemical Engineering (all)
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal
  • Pollution
  • Management, Monitoring, Policy and Law


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