AIR STRIPPING - A METHOD FOR TREATMENT OF WASTE-WATER

During recent years the air stripping process has been increasingly ap plied to the cleaning of water contaminated by volatile organic compou nds (VOC). The present contribution compares various methods of treati ng VOC-contaminated water, with a special focus on removal efficiency and economic aspects. In particular, air stripping, a universally used cleaning method, is described in greater detail. Design and operation al aspects are worked out for packed stripping towers for the special case of water contaminated with chlorinated hydrocarbons. Experimental results substantiate predictions of various operating conditions, pac king types and scale-up effects.