Ammonia and its compounds in natural or industrial waste waters have become a major environmental problem. When discharged without any treatment, even small amounts ammonia has negative effects on aquatic life. Because of the toxic nature of the wastewaters containing ammonia, it is generally difficult to treat these kind of wastewaters by biological processes. The recovery and removal of ammonia and its compound from wastewaters can be accomplished by biological, physical, chemical, or a combination of these methods such as adsorption, chemical precipitation, membrane filtration, reverse osmosis, ion exchange, air stripping, breakpoint chlorination and biological nitrification [1].