… I would have to say that the SAI installation has fundamentally changed how I would approach sludge cake transfer design / plant layout in future .
Alan Whitty , Principal Mechanical Engineer at Veolia
SEEPEX supplied and commissioned three
sludge cake pumps with 2.5m custommade hoppers to suit the dimensions of the dewatered belt presses , the associated BLI pumps as well as the SAI controls .
The compact SAI system offered considerable savings by allowing the new plant to be installed within the existing sludge dryer building . By using dense phase conveying , Veolia was able to lower the discharge pressure from 16-18 bar to 3-4 bar , enabling smaller cake pumps compared to the 4-stage pumps otherwise required for a conventional system .
The robust SAI system requires nearly 50 % lower power compared to conventional pumping with subsequent energy cost savings . SAI has proven to have the operational flexibility required by the process and enables the pipework to be emptied when idle , eliminating the risk of cake line blockages ; it is easy to operate and extremely reliable .
SEEPEX open hopper pumps sit under the belt presses .
SEEPEX ’ s engineered solution using SAI technology and their proven
cake pumping expertise have enabled Veolia to upgrade their sludge cake handling system which feeds their THP process at Osberstown STF .
For further information , please visit www . seepex . com
Issue 55 PECM 85