RT Journal Article
T1 Blending based optimisation and pretreatment strategies to enhance anaerobic digestion of poultry manure
A1 Rodríguez Verde, Iván
A1 Regueiro Abelleira, Leticia
A1 Lema Rodicio, Juan Manuel
A1 Carballa Arcos, Marta
K1 Ammonia inhibition
K1 Co-digestion
K1 Lignocellulosic material
K1 Livestock waste
K1 Methane
AB Anaerobic digestion of poultry manure is limited by the excessive levels of nitrogen and the high concentration of dry matter. These limitations are usually overcome either by applying procedures to remove nitrogen or by employing pretreatments that allows to solubilise organic matter. In this work, the treatment of poultry manure was enhanced by co-digestion with pig manure through the methodological determination of optimal mixtures combined together with a thermochemical pretreatment coupled to ammonia stripping. The optimum poultry-pig mixture, resulting in a 24%:76% (volume basis) poultry-pig manure, was determined by applying a methodology based on linear programming which calculates the proportions of the blend which returns the maximum methane production while keeping a stable process. Pretreatment batch experiments, consisting of increasing both temperature and pH simultaneously with ammonia stripping process was optimised for a temperature of 90 °C and a pH of 10 resulting in a nitrogen removal efficiency of 72% and a 1.2-fold higher methane production in comparison to the unpretreated mixture. Continuous anaerobic co-digestion of pretreated optimum mixture enhanced the COD removal efficiency by 37% when compared with the treatment of unpretreated feedstock (37% vs 27%, respectively). This study indicates that combining blending optimisation of substrates, thermochemical pretreatments and ammonia stripping procedures prior to anaerobic co-digestion becomes a good strategy to overtake the limitations offered by solid- and nitrogen-rich substrates, such as poultry manure
PB Elsevier
SN 0956-053X
YR 2018
FD 2018
LK http://hdl.handle.net/10347/17086
UL http://hdl.handle.net/10347/17086
LA eng
NO Rodriguez-Verde, I., Regueiro, L., Lema, J., & Carballa, M. (2018). Blending based optimisation and pretreatment strategies to enhance anaerobic digestion of poultry manure. Waste Management, 71, 521-531. doi: 10.1016/j.wasman.2017.11.002
NO This is the accepted manuscript of the following article: Rodriguez-Verde, I., Regueiro, L., Lema, J., & Carballa, M. (2018). Blending based optimisation and pretreatment strategies to enhance anaerobic digestion of poultry manure. Waste Management, 71, 521-531. doi: 10.1016/j.wasman.2017.11.002© 2018 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
NO This research was supported by the European Comission by ManureEcoMine project (ENV.213.6.3-2) and by CDTI through SmartGreenGas project (2014-CE224). The authors belong to CRETUS (AGRUP2015/02) and to the Galician Competitive Research Group GRC 2013-032, both programme co-funded by FEDER
DS Minerva
RD 27 abr 2026