Ultraviolet, chlorine and ozone disinfection of some enteroviruses in drinking water and treated effluents
Journal of the Egyptian Public Health Association [The]. 1997; 72 (3-4): 411-423
em Inglês
| IMEMR
| ID: emr-45088
ABSTRACT
The inactivation efficiency of chlorine, ultraviolet light and ozone were determined for poliovirus type 3, Coxsackievirus type B4 and Hepatitis A virus in drinking water and treated effluent. Ultraviolet was more efficient than the other two disinfectants at wave length 254 rim where no infective virus was detected after 4 mm of UV irradiation in both drinking water and treated effluent. Inactivation by chlorine dose more than 25 mg/L was sufficient for studied viruses in both drinking water and treated effluent. Also virus- seeded drinking water was exposed to ozone for 18 min at ozone rate of 319 mg/L/h to obtain the maximum inactivation of PV3, CoxB4 and HAV but about 20 min of ozone exposure was needed for treated effluent. Physico-chemical parameters were measured before and after disinfection assay. No significant changes were observed
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Índice:
IMEMR (Mediterrâneo Oriental)
Assunto principal:
Ozônio
/
Raios Ultravioleta
/
Microbiologia da Água
/
Cloro
/
Desinfecção
/
Enterovirus
/
Enterovirus Humano B
/
Hepatovirus
/
Poliovirus
/
Desinfetantes
Idioma:
Inglês
Revista:
J. Egypt. Public Health Assoc.
Ano de publicação:
1997
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