Due to the presence of high organic load, dairy effluents degrade rapidly and deplete the DO (dissolve oxygen) level of the receiving streams and become the propagation place for mosquitoes and flies carrying malaria and other perilous disease such as dengue fever, yellow fever and chicken guinea [18]. The wastes are also characterized by strong butyric acid odor and heavy black flocculated sludge masses [19]. The dairy industries produce effluents rich in fats, oils and greases (FOGs) and can have negative impacts on wastewater treatment systems [20] as often cause foul odors, blockage of pipes and sewer lines. Volatile fatty acids (VFA) are among the most abundant volatile organic compounds in dairy manure and are associated with odor nuisance [65]. Raw milk contains of ammonia nitrogen and presence of 50 mg/L of nitrogen in wastewater stream is due to 1% loss of milk [21]. Presence of nitrate can cause methemoglobinemia if converted to nitrite [6] and contaminate groundwater. Presence of nitrogen in dairy effluent is another major problem that once converted may contaminate ground water with nitrate [22].