Título:
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Biofiltration of WWTP sludge composting emission at contact times of 2 to 8 seconds
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Autor/a:
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Dorado Castaño, Antonio David; Gabriel Buguña, David; Gamisans Noguera, Javier
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera i Recursos Naturals; Universitat Politècnica de Catalunya. ERNMA - Enginyeria dels Recursos Naturals i Medi Ambient |
Abstract:
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The performance of a biotrickling filter for the abatement of composting emissions was
evaluated at short contact times of 2 to 8 seconds. The effect of EBRT, pH control and
water renovation rate were evaluated. The average elimination capacity was 13 and 3.3
g N/C m-3
h
-1
for ammonia and VOCs, respectively, and the maximum EC obtained
during a doping process were 40 and 20 g N/C m
-3
h
-1
. Biotrickling filters appear as a
better alternative than biofilters due to their controllability. However, water renovation
becomes a critical parameter to avoid substrate inhibition by nitrite and ammonia
accumulation. Not only ammonia absorption is negatively affected at low renovation
rate but it is also affected the biological process. A decrease of 40 % was detected in the
nitrification step when the hydraulic residence time increased from 2 to 5 hours. Results
presented herein demonstrate that high removal efficiencies can be achieved for
composting emissions in a biotrickling filter operated at short contact times which
entails a substantial reduction of operational and investment costs in comparison to
traditional techniques. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria química::Química orgànica::Bioquímica -Biotrickling filter -Biofiltration -Filters and filtration -Volatile organic compounds -Ammonia -Filtres i filtració -Compostos orgànics volàtils -Amoníac |
Derechos:
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Tipo de documento:
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Artículo - Versión presentada Objeto de conferencia |
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