ABSTRACT
This chapter addresses air stripping, activated carbon, and biological treatment for organics in ground water, and chemical precipitation for inorganics in ground water. It describes the principles, design considerations and applications of the treatment processes. There are four basic equipment configurations used for air stripping, including diffused aeration, counter-current packed columns, cross-flow towers, and coke tray aerators. Air stripping has been successfully used for removing volatile organics from contaminated ground waters. Although the variation in the design of packed column air stripping systems results in various costs, the major components of an air stripping system for removing organic contaminants from a ground water would include the packed column, the air supply equipment, and re-pumping. Activated carbon adsorption has been successfully used for removing organics from contaminated ground waters. The cost of treating ground water by activated carbon adsorption is dependent on a number of factors, such as: flow rates, concentrations, type of contaminant, type of application, and site requirements.
