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Water conservation opportunities.

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Water conservation opportunities. Water conservation opportunities. Presentation Transcript

  • Water Conservation Opportunities in Industry & Power Sectors D. Pawan Kumar
  • Estimated Sectoral Water Demands in India (2009)  Water Requirement in Various sectors:  Irrigation 688 BCM  Drinking Water 56 BCM  Industry 12 BCM  Energy 5 BCM  Others 52 BCM
  • Depleting reserve apart, energy use for water pumping also key concern area for sectors like agriculture, industry and power, for water pumping.  Agricultural sector draws 104 Billion Units of electricity.  Industry sector draws 25 Billion Units of Electricity.  PWW draws 12 Billion Units of electricity.  Power Sector accounts for almost 4-5% of generation, towards pumping needs.
  • As a part of CSR and also for survival needs, industry & power sector have been addressing water & energy conservation for concurrent benefits. The good practices include: Adopting Reduce-Reuse-Recycle-Recharge approach  Developing standards and reporting procedures for water consumption  Determining water foot prints of specific products and services  Adoption of zero discharge systems  Process modifications for reducing water energy consumption  Condensate recovery in steam systems
  • The good practices include (Contd)  CoC improvements in cooling water systems  Adoption of Reverse Osmosis systems Green belt development  Re-use of effluents  Adopting community based approach through awareness for better water efficiency  Roof top water collection  Rain water collection  Surface water collection  Use of blow down water for gardening  Promotion of water energy nexus interventions.  Adoption of cleaner production initiatives
  • The good practices include (Contd)  Adopting Percolation ponds  Nozzle size reduction in direct use  Minimizing wastage in desert coolers, fire hydrants, tanks, canteens, urinals and colonies  Rain water harvesting by adopting check dams, peculation pits, Recharging wells  Re-use drain water for fire fighting  Re-use back water for process  Use ICT (Google Earth) for water shed development  Adoption of water efficient devices
  • The good practices include (Contd)  Adopting water efficient drip irrigation equipment  Promoting water user communities and self help groups  Promoting lift irrigation projects  Adopting dry ash disposal systems  Use of fly ash as building material and for cement manufacture  Ash-water ratio optimization in power plants  Adopting energy efficient pumps, motors and piping systems  Promoting demand side management in the use of water and energy  Promoting agricultural pump rectification.  Bio- methanation in sewage treatment plants for power generation
  • Conclusions:  Going by experiences so far, major drivers for water conservation are felt to be :  Local regulatory interventions/policy .  Shortfall in quality and quantity of water supply .  Prevalence of focus on CSR.  Raising water and electricity tariffs.  Compliance needs of ISO standards.  If not already being in place, water conservation could soon emerge as a key focus area in industry and power sectors.