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Volume 2
Journal of Environmental Research
Page 68
JOINT EVENT
July 26-27, 2018 Rome, Italy
&
6
th
Edition of International Conference on
Water Pollution & Sewage Management
4
th
International Conference on
Pollution Control & Sustainable Environment
Household low temperature MS2 (ATCC15597-B1) virus and
E.coli
(ATCC 15597-B1) inactivation
using a hot bubble column evaporator (HBCE)
A Garrido
and
R M Pashley
University of New South Wales, Australia
T
he MS2 (ATCC15597-B1) virus and
E. coli
(ATCC 15597) were used as a surrogate to estimate the inactivation rates for
enteric viruses and bacteria when using a hot bubble column evaporator (HBCE) system in the treatment of household
wastewater. In this study, we have combined the use of 6 different gases (CO
2
, N
2
, O
2
, Ar, air and combustion gas) with thermal
inactivation rates, using an improved double layer plaque assay technique, in order to assess the efficiency of the HBCE process
for virus and bacterial removal in water. When bubbling a continuous flow of dry air at 200°C, it only heats the aqueous
solution in the bubble column to about 50°C. Virus and bacteria are not inactivated by this solution temperature, as confirmed
separately from water bath heating experiments. Hence, the efficiency of the HBCE process for virus and bacteria removal in
water appeared to be caused entirely by collisions between the hot air bubbles and the organisms. This new energy efficient
treatment for water reuse applications can reduce the thermal energy requirement to only 25% (about 113.7 kJ/L) of that
required for boiling (about 450 kJ/L).
Adrian.GarridoSanchis@student.adfa.edu.auJ Environ Res 2018, Volume: 2