Among the challenges to mankind, few are more critical than the need to protect the environment. The rapid increase in population, coupled with the enormous rate on industrialization had a negative effect on the realization of this goal. As a result, the environ ment (water, air and earth) has been deteriorating more and more every day. It is only with the proper treatment of the wastes which are produced by man and his activities, that this deteriora tion can be stopped. Wastewater, is a major polluter of the environment. Although in many areas, science and technology has reached a level...