MUST Waste Water Treatment System

摘要

The purpose of this program was to develop a second-generation water treatment unit that would treat liquid wastes (except human) from the MUST Hospital and produce (1) water, safe for ground discharge, and (2) potable water. As the previous flotation system exhibited problems, electrochemical, ultrafiltration, and reverse-osmosis units were investigated for primary treatment application. The electrochemical unit evinced difficulty in controlling current flow; the ultrafilters developed severe fouling problems; the reverse-osmosis system proved satisfactory, even after repeated treatment of raw wastes, to the extent of producing a 95-percent product recovery. The organic breakthrough that evolved with the reverse-osmosis system was treated with activated carbon for partial success. When ozonation was added as a final step for removing the organic materials, the product water purification increased to a high of 95 percent. (Author)