Investigation of water quality in combined recycled water and stormwater systems

M. P. Perera, A. W.M. Ng, S. Muthukumaran, J. O’Connor, B. J.C. Perera

Research output: Contribution to journalArticlepeer-review


Integrated Urban Water Management (IUWM) approach is an important strategy for urban water utilities to improve water security and system resilience. This study proposes a novel approach to combine recycled water and stormwater. This novel mixing method of capturing and treating stormwater at various locations along the recycled water pipeline and injecting treated stormwater in to the recycled water pipe line is unknown to have been practiced anywhere in the world. Water quality control of combined water is a vital factor for the safe use, as mixing percentage of stormwater is decided based on availability. A method to determine the water quality before mixing is required. Therefore, this paper investigates the appropriateness of the mass balance method to compute combined water quality and proposes a guideline for water quality of combined water.

Original languageEnglish
Pages (from-to)478-487
Number of pages10
JournalUrban Water Journal
Issue number5
Publication statusPublished - 28 May 2018
Externally publishedYes


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