Jagadabhi, P S and Kaparaju, P and Väisänen, A and Rintala, J (2019) Effect of macro- and micro-nutrients addition during anaerobic mono-digestion of grass silage in leach-bed reactors. Environmental Technology (TSI), 40 (4). pp. 418-429. ISSN 0959-3330
Full text not available from this repository.Abstract
The 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.
| Item Type: | Article |
|---|---|
| Divisions: | Research Program : Innovation Systems for the Drylands (ISD) |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Leach bed reactor, micro-nutrients, anaerobic digestion, grass silage, methane |
| Subjects: | Others |
| Depositing User: | Mr Ramesh K |
| Date Deposited: | 30 Jul 2019 05:36 |
| Last Modified: | 23 Jan 2020 08:31 |
| URI: | http://oar.icrisat.org/id/eprint/11194 |
| Official URL: | https://doi.org/10.1080/09593330.2017.1393462 |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | Funding Finnish doctoral programme in Environmental Science and Technology (EnSte) is gratefully acknowledged for funding Mrs Padma Shanthi Jagadabhi's Ph.D. studies. Acknowledgements The authors gratefully acknowledge Mrs Mervi Koistinen for technical assistance in laboratory analyses. |
| Links: | |
Actions (login required)
 |
View Item |
Altmetric
Altmetric