Sounds simple, but reducing ...

Published October 20, 2016 18:40 by Maeve Hall, Group Manufacturing Sustainability Manager

Sounds simple, but reducing sludge disposal costs can come from reducing the amount of sludge. This is done through dewatering, different treatment methods which minimise the amount of sludge - e.g. avoidance of alum, and then finally identify secondary life for the sludge - soil conditioners, fuels etc. To do this you may also need to change the treatment method.

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Dewatering takes a huge amount of energy and the huge pumps are difficult and expensive to repair. Further, you have to pay for trucking fees and tipping fees to ship the sludge. Many states do not allow this sludge to be used for putting on land as fertilizer due to possibilities of unfriendly ingredients in the sludge and lastly, you are responsible for the sludge should the truck have an accident...the sludge is your responsibility until it has reached its final home.

Published November 15, 2016 16:46 by Joseph Massidda, Partner at Cellulose Solutions

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