Koch Membrane Systems is a leading manufacturer of cross-flow membranes and membrane systems. The technologies provided are reverse osmosis, nanofiltration, ultrafiltration, and microfiltration. Koch products have numerous uses in the chemical industry, including: product desalting, fractionation, and/or concentration production of high-purity process water wastewater reduction or recycling catalyst recovery and product recovery from spent solvent, acid and caustic streams.