Indian researchers developed a styrene based polymer membrane for the recovery of auxiliary chemicals and water discharged by domsestic dyeing facilities. An experiment evaluated the performance of our membranes cast under vrying conditions. The membranes separated and revoered both simulated and real effluent from dyeing processes. The experiment measured permeate flux versus pressure for the effluent and for pure water, permeate flux versus time, and flow rate versus pH at different pressures. The membranes were very effective at the separation and recovery of effluent and represent a vialbel alternative ot more costly biological treatments. 5 refs.