Outreach

For improved recycling and water harvesting

Water audit at Wheels India

ICCW conducted water balance study and identified water saving opportunities for automobile components factory, Wheels India at Padi, Chennai. The company has initiated several water saving measures such water metering at all source & consumption points, demarcation of process, utilities, domestic and irrigation consumption, recycling of ETP treated water through RO and multiple effect evaporator for paint shop process water, recycling of STP treated water for gardening and green belt development.

water-audit1

The water balance audit presented

  • The water balance showing the combined input of freshwater, ETP and STP, indicating the breakup for fresh water consumed and reuse for gardening and roof cooling.
  • The optimisation of treated water consumed in development of green belt.
  • Reduction in freshwater consumption by 10% which is around 40 m3/day of total fresh water consumed through changes in faucets and fixtures.
  • Redirecting Softeners regeneration water to raw water sump instead of the ETP.
  • At a freshwater cost of Rs 90/m3, the potential savings is Rs 10.8 lakhs per year.
  • Identified measures for reducing the cost of treatment in ETP by treating the effluent from paint shops locally and take only the rejects to ETP for treatment.
  • Indirect saving of around 34% of freshwater by substitution of fresh water by STP treated water in cooling towers

ICCW joined with Hand in hand Inclusive Development Services (HHIDS), Green Rameswaram’ partner for Vivekananda Kendra- NARDEP for implementing the water resources security schemes for Rameswaram island.
ICCW was the consultant for developing the WRSM for jurisdictional boundaries of Rameswaram island.
There was a need to build water security in the context of increased pilgrims and the exploitation of available groundwater has made the residents of the island vulnerable to the access, availability and affordability of potable water.

The water resources security mapping consisted rapid assessment framework and development of an action plan with available water resources, current management practices and the risks associated with the availability of the water resources.

A road map for implementation was suggested and interactions were organized with the local stakeholders
Results

The water security index score of Rameswaram island is 4 on a scale of 1 to 5, with 1 for poor water security and 5 for sustainable water security.  The island is rich in water resources inspite of water withdrawals, consumption or demand.

Recommended suggestions

  •  Non -revenue water (NRW) reduction
  •  Efficiency of consumption
  • Roof top rainwater harvesting on buildings.
  • Aquifer recharge to reduce salinity.
  • Watershed health protection- protection of theerthams through 4Rs Revive, rejuvenate, renovate and restore
  • Provide quality clean drinking water by innovative cost effective community based drinking water treatment technologies
water-audit2