The Pembroke Pollution Control Centre is using the DDI Heat Exchanger with very positive results.  Raw sludge with an average temperature between 11* C to 19* C flows through one side of the heat exchanger and re-circulated sludge from the digesters with temperatures ranging in the high thirty’s flows through the opposite side of the heat exchanger.  This has resulted in substantial savings has the raw sludge is increased in temperature prior to entering the digesters at no expense to the City sewage system.  After almost two years of operation no plugging has occurred and it works as per specification.  I am very satisfied with the results of this piece of equipment.   

David Atkinson

City of Pembroke
Utilities Superintendent
Office 613-735-6821 ext. 1490
Cell    613-281-2141
Fax    613-732-7028

 

12 Sep 2007

Vitalix Inc. has been using the DDI heat exchanger almost a year now with very positive results. Raw molasses at 65% to 70% solids is running on one side and hot water on the other. We have had no problems with plugging or pressure buildup. We are also very pleased with the effectiveness of this unit in heat transfer. Thank you for your help and support. 

Plant Mgr.  Doug Olson
308-762-8358
Vitalix Inc.
Alliance NE.