This work regards the application of the ozonation process for reducing biological sludge production in a Wastewater Treatment Plant (WWTP). The experimental activity was carried out in the aerobic digestion unit of the full-scale WWTP of Sabaudia (LT). Three different ozone flowrates were tested: (1) 60 gO3/h; (2) 500 gO3/h; (3) 670 gO3/h. The higher ozone dosages allowed to achieve a significant decrease of the amount of sludge to be finally disposed of by the WWTP. In terms of monthly-based production, a reduction from 64 to 85% was obtained as compared to the expected amount in the absence of ozonation.
Full-scale application of ozone oxidation for minimization of excess sludge production in an aerobic digester / Chiavola, Agostina; E., D’Amato; R., Gori; C., Lubello; P., Sirini. - ELETTRONICO. - unico:(2012). (Intervento presentato al convegno Convegno internazionale: SIDISA Milano 2012. Sustainable Technology for Environmental Protection 9th Edition International Symposium of Sanitary and Environmental Engineering. 11th Edition of the Italian-Brazilian Symposium of Sanitary and Environmental Engineering tenutosi a Milano nel 26-29 Giugno 2012).
Full-scale application of ozone oxidation for minimization of excess sludge production in an aerobic digester
CHIAVOLA, Agostina;
2012
Abstract
This work regards the application of the ozonation process for reducing biological sludge production in a Wastewater Treatment Plant (WWTP). The experimental activity was carried out in the aerobic digestion unit of the full-scale WWTP of Sabaudia (LT). Three different ozone flowrates were tested: (1) 60 gO3/h; (2) 500 gO3/h; (3) 670 gO3/h. The higher ozone dosages allowed to achieve a significant decrease of the amount of sludge to be finally disposed of by the WWTP. In terms of monthly-based production, a reduction from 64 to 85% was obtained as compared to the expected amount in the absence of ozonation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
