RT journal article
T1 Simultaneous removal of ammonium from landfill leachate and hydrogen sulfide from biogas using a novel two-stage oxic-anoxic system
A1 González Cortés, José Joaquín
A1 Almengló Cordero, Fernando
A1 Ramírez Muñoz, Martín
A1 Cantero Moreno, Domingo
A2 Ingeniería Química y Tecnología de Alimentos
K1 Anoxic biodesulfurization
K1 Nitrification
K1 Landfill leachate
K1 Hydrogen sulfide
K1 Gas-lift
K1 Sulfurimonas
AB Anoxic biodesulfurization has been achieved in several bioreactor systems that have shown robustness and high elimination capacities (ECs). However, the high operating costs of this technology, which are mainly caused by the high requirements of nitrite or nitrate, make its full-scale application difficult. In the present study, the use of biologically produced nitrate/nitrite by nitrification of two different ammonium substrates, namely synthetic medium and landfill leachate, is proposed as a novel alternative. The results demonstrate the feasibility of using both ammonium substrates as nutrient solutions. A maximum elemental sulfur production of 95 ± 1% and a maximum H2S EC of 141.18 g S-H2S m-3 h-1 (RE = 95.0%) was obtained using landfill leachate as the ammonium source. Next Generation Sequencing (NGS) analysis of the microbial community revealed that the most common genera present in the desulfurizing bioreactor were Sulfurimonas (91.8-50.9%) followed by Thauera (1.1-24.2%) and Lentimicrobium (2.0-9.7%).
PB Elsevier B.V
SN 1879-1026
YR 2020
FD 2020-08-11
LK http://hdl.handle.net/10498/29904
UL http://hdl.handle.net/10498/29904
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026