Research and develop a regenerable adsorbent and filtration system which when combined with existing effluent treatment technology can produce a recycleable water supply from a highly coloured trade waste or ground water supply. This will also by necessity involve a total dissolved solids reduction utilizing nanofiltration or other membrane separation technology in order to produce a high quality recycled water supply. It will be necessary to develop a new filtration process together with process and manufacturing methods for the construction of a bio-chemical adsorbtion bed and its regeneration. It will be necessary to establish characteristics that offer the prevention of fouling of membranes surfaces with resultant wastes of high C.O.D. chemical oxygen demand which are found in Dyehouse Trade Effluent together with the final removal of trace chemicals which inhibit the re-use of such trade wastes.