Gas Permeable Membranes for Municipal Water Treatment

Gas Permeable (GP) membranes are a relatively mature technology for various industrial water treatment applications; however, they are an emerging technology in municipal water and wastewater applications. GP membrane processes use a microporous hollow-fiber membrane to achieve mass transfer of a dissolved, volatile constituent from liquid to gas, similar to an air stripping process. Advantages include substantially lower space requirements, the ability to operate inline without clearwells, lower energy requirements, and a number of operational advantages.