Performance of an industrial biofilter from a composting plant in the removal of ammonia and VOCs after material replacement

BACKGROUND: Biofiltration is a suitable odor reduction technique for the treatment of gaseous emissions from composting processes, but little is known about the start-up of full-scale biofilters after material replacement and their performance after several years of operation. - RESULTS: Biofilter m...

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Detalles Bibliográficos
Autores: Colón Jordà, Joan|||0000-0003-1677-7239, Martínez Blanco, Julia|||0000-0001-6976-8956, Gabarrell Durany, Xavier|||0000-0003-1730-4337, Rieradevall, Joan|||0000-0003-3360-6829, Font, Xavier|||0000-0003-4981-7436, Artola, Adriana|||0000-0002-0524-2119, Sánchez, Antoni|||0000-0003-4254-8528
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:163649
Acceso en línea:https://ddd.uab.cat/record/163649
https://dx.doi.org/urn:doi:10.1002/jctb.2139
Access Level:acceso abierto
Palabra clave:Ammonia
Biofilter
Composting
Removal efficiency
Volatile organic compounds
Descripción
Sumario:BACKGROUND: Biofiltration is a suitable odor reduction technique for the treatment of gaseous emissions from composting processes, but little is known about the start-up of full-scale biofilters after material replacement and their performance after several years of operation. - RESULTS: Biofilter material (wood chips used previously as bulking agent in a composting process) can effectively remove ammonia and most of the volatile organic compounds (VOCs) content, achieving removal efficiencies greater than 70% for VOCs and near 90% for ammonia immediately after material replacement. These removal efficiencies were maintained for several months after material replacement. In the studied full-scale biofilter no lag phase was observed in the removal of ammonia whereas in the case of VOCs different patterns were detected during biofilter start-up. For the old biofilter material, after 4 years of operation, a statistically significant decrease of removal efficiency for ammonia in comparison with the new material was detected. No statistically significant differences were found in the case of VOCs. - CONCLUSIONS: Data on the emissions of several pollutants from biofilters treating composting exhaust gases have been systematically obtained. The tested filtering media presented adequate properties for biofiltration of gases emitted during the composting process.

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