Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Disinfection of Secondary Effluents Using Tin Oxide Anodes
Direct current applied to a tin oxide anode submersed in water has the potential to generate hydroxyl radicals, a strong chemical oxidant. Tin oxide anode systems, which may represent a viable alternative disinfectant, were investigated for the disinfection of secondary effluents. Coliform bacteria in the effluent were effectively inactivated in a bench‐scale tin oxide disinfection system. The number of anodes in the tin oxide disinfection system influenced the steady‐state concentration of hydroxyl radicals and, consequently, the contact time necessary to achieve a specified dose. The life expectancy of the anodes was greater than 30 days and no appreciable loss of tin was observed over a 5‐day period. A preliminary estimate of the capital and operating costs of a pilot‐ or full‐scale tin oxide disinfection system designed to meet a discharge requirement of 23 most probable number/100 mL at a 3 785‐m3/d (1‐mgd) facility was comparable to UV and chlorination/dechlorination facilities. Based on this preliminary assessment, tin oxide disinfection systems are a promising alternative disinfectant for secondary effluents.
Disinfection of Secondary Effluents Using Tin Oxide Anodes
Direct current applied to a tin oxide anode submersed in water has the potential to generate hydroxyl radicals, a strong chemical oxidant. Tin oxide anode systems, which may represent a viable alternative disinfectant, were investigated for the disinfection of secondary effluents. Coliform bacteria in the effluent were effectively inactivated in a bench‐scale tin oxide disinfection system. The number of anodes in the tin oxide disinfection system influenced the steady‐state concentration of hydroxyl radicals and, consequently, the contact time necessary to achieve a specified dose. The life expectancy of the anodes was greater than 30 days and no appreciable loss of tin was observed over a 5‐day period. A preliminary estimate of the capital and operating costs of a pilot‐ or full‐scale tin oxide disinfection system designed to meet a discharge requirement of 23 most probable number/100 mL at a 3 785‐m3/d (1‐mgd) facility was comparable to UV and chlorination/dechlorination facilities. Based on this preliminary assessment, tin oxide disinfection systems are a promising alternative disinfectant for secondary effluents.
Disinfection of Secondary Effluents Using Tin Oxide Anodes
Loge, Frank J. (Autor:in) / Inouye, Trevor (Autor:in) / Watts, Richard J. (Autor:in)
Water Environment Research ; 78 ; 41-48
01.01.2006
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Disinfection of secondary effluents by infiltration percolation
| British Library Conference Proceedings | 2001