Effect of macro- and micro-nutrients addition during anaerobic mono-digestion of grass silage in leach-bed reactors
Jagadabhi, P. S., Kaparaju, P., Väisänen, A., & Rintala, J. (2019). Effect of macro- and micro-nutrients addition during anaerobic mono-digestion of grass silage in leach-bed reactors. Environmental Technology, 40(4), 418-429. https://doi.org/10.1080/09593330.2017.1393462
Julkaistu sarjassa
Environmental TechnologyPäivämäärä
2019The effect of macro- (NH4Cl) (set I) and micro-nutrients (Fe, Ni, Co and Mo) (set II) addition on chemical oxygen demand (COD) solubilisation during anaerobic mono-digestion of grass silage was investigated in two sets of leach bed reactor experiments at 35°C. Results showed that addition of NH4Cl and micro-nutrients improved COD solubilisation by 18% (0.56 g SCOD g−1 volatile solids) and 7% (0.45 g SCOD g−1 VS), respectively than control. About 20–50% of the added micro-nutrients were bioavailable in the produced leachates, while the rest (50–80%) were adsorbed onto the grass silage. Results of biological methane potential assays showed that, specific methane yields of grass silage were improved by 17% (0.36 ± 0.02 m3 CH4 kg−1 VSadded) when NH4Cl was supplemented while Fe, Ni, Co and Mo addition improved methane yields by 15% (0.33 ± 0.005 m3 CH4 kg−1 VSadded) when compared to control.
Julkaisija
Taylor & FrancisISSN Hae Julkaisufoorumista
0959-3330Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/27288413
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