RT journal article T1 Biogas biodesulfurization in an anoxic biotrickling filter packed with open-pore polyurethane foam A1 Fernández, Maikel A1 Ramírez, Martín A1 Gómez Montes de Oca, José Manuel A1 Cantero Moreno, Domingo A2 Ingeniería Química y Tecnología de Alimentos K1 Biotrickling filter K1 Hydrogen sulfide K1 Biogas Anoxic biofiltration K1 Open-pore polyurethane foam AB Biogas biodesulfurization by an anoxic biotrickling filter packed with open pore polyurethane foam atthe laboratory scale (packed volume 2.4 L) has been studied. The biotrickling system was operated for620 days with biogas supplied continuously and two nitrate feeding regimes were tested (manual andprogrammed). Biomass immobilization was carried out under the manual nitrate feeding regime anda study was then carried out on the effects on removal efficiency of the following parameters: nitratesource, H2S inlet load, nitrate concentration, sulfate accumulation, temperature, pH and trickling liquidvelocity. The effect of increased H2S inlet load was studied under the programmed nitrate feeding regime.The results show that a removal efficiency of 99% can be obtained when working under the followingconditions: inlet loads below 130 gS m−3h−1, a programmed nitrate feeding system, temperature of 30◦C,sulfate concentration below 33 g L−1, a pH between 7.3 and 7.5, and a trickling liquid velocity higher than4.6 m h−1. PB Elsevier SN 0304-3894 YR 2014 FD 2014-01-01T00:00:00Z LK http://hdl.handle.net/10498/16299 UL http://hdl.handle.net/10498/16299 LA eng NO http://dx.doi.org/10.1016/j.jhazmat.2013.10.046 DS Repositorio Institucional de la Universidad de Cádiz RD 12-nov-2026