eprintid: 11194
rev_number: 10
eprint_status: archive
userid: 1305
dir: disk0/00/01/11/94
datestamp: 2019-07-30 05:36:21
lastmod: 2020-01-23 08:31:00
status_changed: 2019-07-30 05:36:21
type: article
metadata_visibility: show
creators_name: Jagadabhi, P S
creators_name: Kaparaju, P
creators_name: Väisänen, A
creators_name: Rintala, J
creators_gender: Male
icrisatcreators_name: Jagadabhi, P S
affiliation: ICRISAT (Patancheru)
affiliation: Department of Biological and Environmental Science, University of Jyväskylä (Jyvaskyla)
affiliation: Griffith School of Engineering, Environment Building, Griffith University (Brisbane)
affiliation: Department of Chemistry, University of Jyväskylä (Jyvaskyla)
affiliation: Department of Chemistry and Bioengineering, Tampere University of Technology (Tampere)
country: India
country: Finland
country: Australia
title: Effect of macro- and micro-nutrients addition during anaerobic mono-digestion of grass silage in leach-bed reactors
ispublished: pub
subjects: s2
divisions: CRPS4
full_text_status: none
keywords: Leach bed reactor, micro-nutrients, anaerobic digestion, grass silage, methane
note: 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.
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.
date: 2019
date_type: published
publication: Environmental Technology (TSI)
volume: 40
number: 4
publisher: Taylor & Francis
pagerange: 418-429
id_number: 10.1080/09593330.2017.1393462
refereed: TRUE
issn: 0959-3330
official_url: https://doi.org/10.1080/09593330.2017.1393462
citation:   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