Squeeze the water out of your sludge and cut disposal costs — filter presses produce the driest cake of any dewatering method.
Every treatment plant produces sludge, and hauling wet sludge is expensive. A filter press presses that sludge into a firm, high-solids cake — slashing volume, weight and disposal cost — while returning clear filtrate to the plant. CWG supplies and integrates plate-and-frame filter presses for ETPs, STPs and process industries.
A plate-and-frame filter press forces conditioned sludge between a series of filter-cloth-covered plates. Water passes through the cloth as clear filtrate while solids build up as a cake in the chambers.
As the chambers fill and pressure rises, the cake is compressed to a high dryness. The plates then open and the dewatered cake drops out for disposal or reuse.
It’s a batch process that delivers the driest cake of any common dewatering technology — ideal where disposal is charged by weight or volume.
Conditioned sludge is pumped into the press, dewatered under rising pressure, then released as a dry cake.
Sludge is conditioned (often with polymer or lime) to release water more readily.
Feed pumps push sludge into the chambers between the filter plates.
Rising pressure squeezes water through the cloths as filtrate; solids compact into a cake.
The plates separate and the firm, dry cake drops out for disposal or recovery.
Produces higher cake solids than belt or screw presses — the least residual water.
Less volume and weight to haul and dispose of.
Returns clean filtrate to the plant for treatment or reuse.
Heavy-duty construction handles demanding industrial sludges.
Efficient dewatering with modest conditioning.
Dry cake can be reused or safely landfilled.
Driest cake and best for heavy chemical sludges; screw press suits continuous, lighter duty.
Higher cake solids and a cleaner working area, with an enclosed batch cycle.
Far faster and weather-independent, in a fraction of the land.
With sludge disposal costs and environmental scrutiny both rising, dewatering is no longer optional. A filter press cuts the cost of every load leaving your site and keeps sludge handling clean and compliant.
Since 1998, CWG Watch Water Technology has delivered advanced water & wastewater solutions across Pakistan — wastewater plants, RO, demineralization, softening, filtration, specialty chemicals and complete plant engineering. With decades of experience, international technology partnerships and a proven portfolio, we design customised MBBR solutions built specifically for Pakistan’s industrial requirements.
Tell us your sludge type and volume, and CWG will size a filter press to give you the driest possible cake.
