Sterlite Industries India Limited, Silvassa, undertakes water conservation efforts as a corporate initiative (2007)

This documentation provides a lot of specific details of individual process modifications and presents results in terms of both physical and financial savings

This presentation describes the efforts undertaken by Sterlite Industries India Limited, Silvaasa at water conservation and management. Sterlite, a subsidiary of the London-listed metals and mining major Vedanta Resources Group is a leading producer of electrolytic grade copper in India.

Their water conservation documentation is particularly interesting because it provides a lot of specific details of savings brought about by individual process modifications and presents results in terms of both physical and financial savings.

Initiatives include:

  • Modification in the thermosyphon cooling water arrangement,
  • Condensate recovery of RVD for filter press backwashing
  • Process modification in the leaching section to reduce steam consumption
  • Modification of nozzles in ASWM for better drying & reduction in water consumption
  • Reuse of collected condensate water generated by anode casting cooled water
  • Rainwater harvesting
  • Conversion of gland packing pumps into mechanical seal
  • Provision of electrolytic cell covers in the refinery and the use of a lube cooled heat exchanger for compressors with recirculation.

An interesting statistic that highlights the good business sense of these measures is that for a total of Rs.1.55 million spent on them, no less than Rs. 1.15 million, or in other words nearly 75% of the investment is recovered in the form of savings.

Download the presentation from below for more details:

 

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