Hello Mahesh Gadekar You ...
Published by Rajat Singhal, Technical Head & Partner at CEE India
Hello Mahesh Gadekar
You can consider putting up a mercury removal plant which will remove the mercury as mercurous chloride (calomel) which can be sold as mercury sludge. If tonnage is sufficient you can put up a electrolysis plant to convert calomel to mercury.
All the Best!