期刊名称：Research Journal of Environmental and Earth Sciences
印刷版ISSN：2041-0484
电子版ISSN：2041-0492
出版年度：2013
卷号：5
期号：3
页码：153-159
DOI：10.19026/rjees.5.5652
出版社：Maxwell Science Publications
摘要：The contrast of decrease in fresh water supply and an increasing demand for multiple uses of water has adversely affected the quality of waste water. Water-borne illnesses caused by the addition of agricultural and industrial chemicals, by-product wastes and sewage in water reservoirs, have become a serious problem to human health. Sustainable use of water resources, conservation and efficient treatment processes for the re-use of waste water are inevitable. The current study was designed to find the degree of deterioration of water and to formulate the cost-effective technique or method for waste water treatment. Chemically Enhanced Primary Treatment (CEPT) with alum in conjunction with Advance Oxidation Process (AOPs) with H2O2/UV to meet specific objectives in municipal Waste Water Treatment (WWT) was evaluated. This study reports a reduction in COD (70%), BOD (58%) and Turbidity (81%) with an optimum dose of alum (14mg/L). Further degradation of such chemicals with 40% Waste Hydrogen Peroxide and Ultra Violet radiation (H2O2/UV) was also investigated. Reduction in COD (96%) and BOD (95%) of wastewater was observed in samples treated with an exposure to 3ml H2O2/. Moreover, a 100% reduction in colony forming units (CFU/ml) of fecal coliform was observed after 90 min treatment with 3ml of 40% H2O2/L wastewater coupled with exposure to UV light. Use of wasted H2O2 is economical as compared to other chemical treatment methods besides reducing H2O2/ pollution. Thus CEPT treatment along with H2O2//UV exhibited a promising approach without causing any negative impact on the environment.
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