The Promotion UV Disinfection Efficiency in Treating Secondary Effluent by Expandedperlite Filter

Year 2007, Volume: 1 Issue: 8, 55 - 65, 01.01.2007

Y. Saatçı A. Özgüven Y. Demirci

Abstract

Wastewater treatment plants WTPs remove primarily the organic matters and in some WTPs, nitrogen and phosphorus. Conventional WTPs reduce the numbers of coliforms, but effluents still contain high numbers of fecal microorganisms [1, 2]. Wastewater treatment plants should minimize the discharge of pathogens to environment, to limit the infection cycles of pathogenic microorganisms. Most countries follow the World Health Organization WHO and United States Environmental Protection Agency US-EPA standards for irrigation of food that can be eaten raw and landscape irrigation. In addition, many European countries are adopting themselves to microbial guidelines in the European Union EU bathing water directive Table 1 .

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