Case Study
 
The Challenge:

The paper & pulp industry consumes huge volumes of water in its production processes and simultaneously generates huge quantities of waste water. A leading company was facing water scarcity as well as a problem with disposal of white water effluent - the quality of white water was inconsistent and unable to meet pollution discharge norms

 
The Solution:
The treatment recommended and implemented by Ion Exchange consisted of:
  • Clarification
  • Filtration
 

A new process for recycling, operating on the gravity settling principle, and using  INDION  High Rate Solids Contact Clarifier (HRSCC) followed by INDION Continuous Sand Filter was also proposed.

 
Result:
  • 2.9 MGD  water recycled and reused in process
  • Water recovery of 98% and fibre recovery of 99%
  • Capital investment payback period of less than 2 years