RT journal article
T1 Effect of VOCs and methane in the biological oxidation of the ferrous ion by an acidophilic consortium
A1 Almengló Cordero, Fernando
A1 Ramírez, Martín
A1 Gómez Montes de Oca, José Manuel
A1 Cantero Moreno, Domingo
A1 Revah, Sergio
A1 González-Sanchez, Armando
A2 Ingeniería Química y Tecnología de Alimentos
K1 acidophilic fungus
K1 ferrooxidans bacteria
K1 H2S
K1 methane
K1 VOCs
AB During the elimination of H2S from biogas in an aqueous ferric sulphate solution, volatile organic compounds (VOCs) and methane are absorbed and may have an effect on the subsequent biological regeneration of ferric ion. This study was conducted to investigate the effect of maximum concentrations of methane and some VOCs found in biogas on the ferrous oxidation of an acidophilic microbial consortium (FO consortium). The presence and impact of heterotrophic microorganisms on the activity of the acidophilic consortium was also evaluated. No effect on the ferrous oxidation rate was found with gas concentrations of 1500 mg toluene m−3, 1400 mg 2-butanol m−3 or 1250 mg 1,2-dichloroethane m−3, nor with methane at gas concentrations ranging from 15–25% (v/v). A tenfold increase in VOCs concentrations totally inhibited the microbial activity of the FO consortium and the heterotrophs. The presence of a heterotrophic fungus may promote the autotrophic growth of the FO consortium.
PB Taylor & Francis
SN 0959-3330
YR 2012
FD 2012-01-01T00:00:00Z
LK http://hdl.handle.net/10498/16307
UL http://hdl.handle.net/10498/16307
LA eng
NO DOI: 10.1080/09593330.2011.584569
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026