Stone & Building Material
Stone processing and construction material manufacturing often generate large volumes of wastewater and slurry. Filter presses are essential for efficient sludge dewatering and wastewater recycling in these industries.
During cutting, polishing, and mixing, materials like stone, concrete, tiles, and sand produce wastewater containing stone powder, cement particles, and sand. Filter presses clarify the water for reuse and reduce sludge moisture for easier disposal.
Quick answer: Stone-cutting, granite and marble polishing, quartz and sand-washing plants produce a fine mineral slurry that settles slowly and cannot be discharged. A chamber filter press fed from a thickener or settling tank turns it into a firm cake that can be stacked, trucked or reused as fill, and returns clear water to the saws and polishing lines. Stone slurry filters fast, so 1000–1500 mm presses with a short cycle and automatic plate shifting are typical; a membrane press is added when the cake must be drier for disposal or when floor space limits the press size.
Key figures at a glance
- Feed: thickened stone slurry, usually with a flocculant, from a settling tank or thickener
- Presses: chamber, 1000–1500 mm polypropylene plates, feed 0.6–1.0 MPa; membrane option for a drier cake
- Cloth: polypropylene monofilament for fast filtrate and clean cake release; see filter press cloth
- Water returned to the process is normally the main saving, together with lower sludge haulage
Related: stone-industry filter press · granite, marble and quartz slurry guide · how to size a filter press · filtration test on your slurry
For marble, granite, engineered stone, and terrazzo factories, chamber filter presses perform well in dewatering high-solids sludge. Concrete batching plants and construction sites can benefit from fully automatic filter presses to recycle wastewater efficiently.
In high-viscosity slurry dewatering, such as quartz countertops, artificial stone, or resin fillers, corrosion-resistant membrane filter presses are more effective and reliable.
We’ve provided suitable filter press solutions for stone factories and construction sites in Saudi Arabia, Indonesia, Vietnam, and more. Our mobile filter press systems support 24/7 continuous operation, helping cut sludge transport costs and ease filter cake handling.
Filter presses are now indispensable solid–liquid separation systems for modern stone and building material enterprises seeking energy saving, environmental protection, and intelligent manufacturing.