Supporting equipment for filter press systems — slurry pumps, diaphragm pumps, screw pumps, ceramic plunger pumps, multi-disc screw presses, and RO water treatment. Specifications, integration tips, and feeding strategies.
Quick answer: The membrane is only as good as what reaches it. Free chlorine destroys polyamide membranes permanently and cannot be cleaned off. Hardness scales, iron fouls, oil coats, suspended solids plug. Decide pre-treatment from a full water analysis before…
Quick answer: Choose from the slurry, not from the press. Air-operated diaphragm pumps are the most forgiving because they stall harmlessly against a closed press. Progressing cavity pumps suit polymer-conditioned sludge. Slurry pumps fill fast but cannot finish. Ceramic piston…
The best filter press feed pump depends on abrasiveness and pressure: diaphragm pumps suit general slurries up to about 1.0 MPa, progressing cavity pumps suit viscous sludge, slurry pumps handle moderate abrasion at high flow, and ceramic piston pumps handle abrasive tailings up to 1.6 MPa.
Quick answer: A filter press gives the driest cake (often 20–30 percentage points drier than a belt press) and the clearest filtrate but runs in batches; a decanter centrifuge runs continuously and compactly but leaves a wetter cake and uses…
Reverse osmosis (RO) systems produce 99%+ pure water for filter cloth washing, laboratory dilution, and process makeup. System design, membrane selection, and water recovery explained.
Multi-disc screw presses dewater municipal and industrial sludge continuously to 18-25% dry solids, using 90% less energy than a centrifuge. Operating principle, capacity selection, and limits explained.