Water Conservation Optimisation For Building Drainage Systems

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Abstract

An assessment of the impact of water conserving fixtures and fittings in typical housing development subject to aggressive water conservation measures is conducted. A range of 25 different house styles were simulated with a diversity (random usage) profile based on appliance type and site investigation. The simulation was conducted by DRAINET, a simulation engine based on the Method of Characteristics and a finite difference scheme validated through field studies. Simulation results show that water conservation down to 80% of non-conserved levels did not significantly reduce the solid transport capability of the associated waste water collection system. At 60% of non-conserved levels, there was a marked reduction in the solid transport capability of the waste water collection system. The use of a small (14 litre) intermittent discharge tank (tipping tank) is suggested as a means of extending safe water conservation practices. The tipping tank option would be the best value and fastest technology to implement as a retro-fit option or as a feature in new-builds. Using only approximately 10% of the water conserved, this measure is effective in maintaining solid transport down to 60% of non-conserved levels, which is significantly lower than current water conservation initiatives are achieving.
Original languageEnglish
Pages (from-to)60-65
Number of pages6
JournalInternational Journal of Engineering and Applied Sciences
Volume4
Issue number4
Publication statusPublished - 8 May 2017

Keywords

  • water conservation
  • risk reduction
  • novel technology
  • simulation

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