caa a22 4500 605497885 CHVBK 20210128100543.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00253-014-5929-7 doi (NATIONALLICENCE)springer-10.1007/s00253-014-5929-7 Modeling the effects of biomass accumulation on the performance of a biotrickling filter packed with PUF support for the alkaline biotreatment of dimethyl disulfide vapors in air [Elektronische Daten] [Luis Arellano-García, Antonio Dorado, Axayacatl Morales-Guadarrama, Emilio Sacristan, Xavier Gamisans, Sergio Revah] Excess biomass buildup in biotrickling filters leads to low performance. The effect of biomass accumulation in a biotrickling filter (BTF) packed with polyurethane foam (PUF) was assessed in terms of hydrodynamics and void space availability in a system treating dimethyl disulfide (DMDS) vapors with an alkaliphilic consortium. A sample of colonized support from a BTF having been operating for over a year was analyzed, and it was found that the BTF void bed fraction was reduced to almost half of that calculated initially without biomass. Liquid flow through the examined BTF yielded dispersion coefficient values of 0.30 and 0.72m2h−1, for clean or colonized PUF, respectively. 3D images of attached biomass obtained with magnetic resonance imaging allowed to calculate the superficial area and the biofilm volume percentage and depth as 650m2m−3, 35%, and 0.6mm respectively. A simplified geometric approximation of the complex PUF structure was proposed using an orthogonal 3D mesh that predicted 600m2m−3 for the same biomass content. With this simplified model, it is suggested that the optimum biomass content would be around 20% of bed volume. The activity of the microorganisms was evaluated by respirometry and the kinetics represented with a Haldane equation type. Experimentally determined parameters were used in a mathematical model to simulate the DMDS elimination capacity (EC), and better description was found when the removal experimental data were matched with a model including liquid axial dispersion in contrast to an ideal plug flow model. Springer-Verlag Berlin Heidelberg, 2014 Biotrickling filter nationallicence Magnetic resonance imaging nationallicence Biofilm nationallicence Modeling nationallicence Dimethyl disulfide nationallicence Liquid dispersion nationallicence Arellano-García Luis Departamento de Ingeniería de Procesos e Hidráulica, UAM Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, Mexico City, Mexico aut Dorado Antonio Departamento de Ingeniería Minera y Recursos Naturales, UPC, Av. Bases de Manresa 61-73, 08242, Barcelona, Manresa, Spain aut Morales-Guadarrama Axayacatl Departamento de Ingeniería Eléctrica, UAM Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, Mexico City, Mexico aut Sacristan Emilio Departamento de Ingeniería Eléctrica, UAM Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, Mexico City, Mexico aut Gamisans Xavier Departamento de Ingeniería Minera y Recursos Naturales, UPC, Av. Bases de Manresa 61-73, 08242, Barcelona, Manresa, Spain aut Revah Sergio Departamento de Procesos y Tecnología, UAM Cuajimalpa, Artificios 40, Col. Hidalgo, Álvaro Obregón, 01120, Mexico City, Mexico aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 97-107 0175-7598 99:1<97 2015 99 253 https://doi.org/10.1007/s00253-014-5929-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-5929-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Arellano-García Luis Departamento de Ingeniería de Procesos e Hidráulica, UAM Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, Mexico City, Mexico aut NATIONALLICENCE 700 1- Dorado Antonio Departamento de Ingeniería Minera y Recursos Naturales, UPC, Av. Bases de Manresa 61-73, 08242, Barcelona, Manresa, Spain aut NATIONALLICENCE 700 1- Morales-Guadarrama Axayacatl Departamento de Ingeniería Eléctrica, UAM Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, Mexico City, Mexico aut NATIONALLICENCE 700 1- Sacristan Emilio Departamento de Ingeniería Eléctrica, UAM Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, Mexico City, Mexico aut NATIONALLICENCE 700 1- Gamisans Xavier Departamento de Ingeniería Minera y Recursos Naturales, UPC, Av. Bases de Manresa 61-73, 08242, Barcelona, Manresa, Spain aut NATIONALLICENCE 700 1- Revah Sergio Departamento de Procesos y Tecnología, UAM Cuajimalpa, Artificios 40, Col. Hidalgo, Álvaro Obregón, 01120, Mexico City, Mexico aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 97-107 0175-7598 99:1<97 2015 99 253