RT info:eu-repo/semantics/article
T1 Economic analysis of microaerobic removal of H2S from biogas in full-scale sludge digesters
A1 Díaz Villalobos, Israel
A1 Fernández-Polanco Íñiguez de la Torre, María
A1 Ramos, Iris
K1 biogas
K1 economic analysis
K1 FeCl3
K1 microaerobic
K1 H2S removal
K1 3308.10 Tecnología de Aguas Residuales
K1 3303 Ingeniería y Tecnología Químicas
AB The application of microaerobic conditions during sludge digestion has been proven to be an efficient method for H2S removal from biogas. In this study, three microaerobic treatments were considered as an alternative to the technique of biogas desulfurization applied (FeCl3 dosing to the digesters) in a WWTP comprising three full-scale anaerobic reactors treating sewage sludge, depending on the reactant: pure O2 from cryogenic tanks, concentrated O2 from PSA generators, and air. These alternatives were compared in terms of net present value (NPV) with a fourth scenario consisting in the utilization of iron-sponge-bed filter inoculated with thiobacteria. The analysis revealed that the most profitable alternative to FeCl3 addition was the injection of concentrated O2 (0.0019 €/m3 biogas), and this scenario presented the highest robustness towards variations in the price of FeCl3, electricity, and in the H2S concentration.
PB Elsevier
SN 0960-8524
YR 2015
FD 2015
LK https://uvadoc.uva.es/handle/10324/63808
UL https://uvadoc.uva.es/handle/10324/63808
LA spa
NO Bioresource Technology, Seotiembre 2015, vol 192, p. 280-286
NO Producción Científica
DS UVaDOC
RD 12-sep-2024