Counterproductive flush water in an evaporator pump leads to big savings

This Betterworld partner April case study of the month shows how the pulp and paper industry can sharpen its competitive edge and go greener at the same time.

During an energy audit at a Canadian pulp and paper plant, AESSEAL^® identified 15 packed evaporator area pumps that needed upgrading to mechanical seals. This was due to the packing flush water diluting the black liquor which was already trying to remove the excess water to enable its use as fuel for their recovery boiler.