No, not cost effectively.
• Simple filtration does not work because the colloidal clay is too finely grained. It either passed through the filter or clogs it too quickly.
• Sand filtration works because such filters allow for automated back flushing and work effectively with flocculation agents.
• Vanson has experimented with centrifugal filters, but found that the process breaks down the floc rendering it ineffective.
• There is a process called D.A.F. (dissolved air floatation) that would almost certainly replace the need for a settling tank and might reduce the demand for floc use. However, the D.A.F process would still require sand filtration for final clarification, and even a small D.A.F. unit would cost in excess of $50K alone.