Profile: AJM / Polyfilters specializes in providing continuous process filters, effluent sludge de-watering, energy saving Powerboss and energy saving lighting. In sludge reduction & effluent filtration, the sludge is pumped into the filter as typically a 5 percent solids slurry. This is reduced to around a 55 percent dry solids filter cake which is suitable for landfill. Sludge filter is used on the spent latex effluent from a carpet factory.