We have developed supported liquid membrane (SLM) technology for removal and recovery of metals, including chromium, copper, and zinc, from waste waters and process streams. The technology for chromium not only removes the Cr(VI) ranging from about 100 to 1,000 ppm to less than 0.05 ppm in the treated effluent allowable for discharge or recycle, but also recovers the chromium product at a high concentration of about 20
展开▼
