Filter press case studies and application notes across nine industries: mining, chemical, food & beverage, pharmaceutical, power & new energy, metallurgy, stone, municipal wastewater, and oil & gas.
The three sludges of a paper mill, moisture targets for boiler fuel, landfill and kilns, screw press vs belt press vs centrifuge vs chamber and membrane filter press on each sludge, conditioning, cloth, cycle and cake handling, plus lime mud and green liquor dregs.
Why kaolin, ball clay and bentonite are hard to dewater, where the filter press sits in a kaolin plant, membrane vs chamber vs belt vs centrifuge on clay, and how to design feed, cloth, squeeze and chamber depth for a 65 to 75% solids cake.
How coal fly ash, bottom ash, pond sediment and FGD gypsum behave in a filter press: abrasion, cloth blinding by fines, feed pump selection, cake moisture targets for landfill or sale, and how the CCR and zero-discharge rules drive dry ash handling.
What buyers mean by STP and ETP, how each is sized, why an ETP produces more and often hazardous sludge, and how to choose between a screw press and a filter press for each.
How a zero liquid discharge plant works stage by stage: pre-treatment, reverse osmosis to 50-75% recovery, brine concentrator and crystallizer, then filter press dewatering of softening sludge and salt cake.
How electroplating, mining and battery wastewater is treated: hexavalent chromium reduction, cyanide destruction, hydroxide and sulfide precipitation, and why the metal hydroxide sludge is the cost driver.