The content of sludge, sand ...
Published by Peter Althaus, Help making organisations successful
The content of sludge, sand and silts in surface water can reach several thousand milligrams per liter. Chemical precipitation and flocculation produce important amounts of solids.
An economic process to remove this pollution is parallel plate settling (sedimentation). Multiple sedimentation planes within one tank reduce the size and cost of the tanks.
Tube settlers, like TubeDEK are an ideal product for this application. It can be adapted to process design requirements by variation of inclination, length of tubes and module sizes. The already mentioned Jar test is definitly the right approach.