ABSTRACT

This chapter begins with traditional techniques employed to treat water contaminated by arsenic, fluoride and uranium. In Membrane distillation, a hot aqueous feed solution is brought in contact with one side of a hydrophobic microporous membrane. There are different studies published in the literature on the use of membrane distillation for the treatment of waters contaminated by arsenic. The membrane distillation process can be a feasible alternative to treat contaminated ground waters. An integrated membrane desalination system as a new and innovative technique for contaminant removal from water was investigated by F. Macedonio and E. Drioli. Lower feed temperatures mean lower thermal energy to be supplied, which is quite important for countries affected by arsenic contaminated waters and where the sunny periods are limited. Only a few studies have been carried out to investigate the simultaneous removal of arsenic and fluoride.