High rate manure supernatant digestion

Water Research
Wenche Hennie BerglandRune Bakke

Abstract

The study shows that high rate anaerobic digestion may be an efficient way to obtain sustainable energy recovery from slurries such as pig manure. High process capacity and robustness to 5% daily load increases are observed in the 370 mL sludge bed AD reactors investigated. The supernatant from partly settled, stored pig manure was fed at rates giving hydraulic retention times, HRT, gradually decreased from 42 to 1.7 h imposing a maximum organic load of 400 g COD L(-1) reactor d(-1). The reactors reached a biogas production rate of 97 g COD L(-1) reactor d(-1) at the highest load at which process stress signs were apparent. The yield was ∼0.47 g COD methane g(-1) CODT feed at HRT above 17 h, gradually decreasing to 0.24 at the lowest HRT (0.166 NL CH4 g(-1) CODT feed decreasing to 0.086). Reactor pH was innately stable at 8.0 ± 0.1 at all HRTs with alkalinity between 9 and 11 g L(-1). The first stress symptom occurred as reduced methane yield when HRT dropped below 17 h. When HRT dropped below 4 h the propionate removal stopped. The yield from acetate removal was constant at 0.17 g COD acetate removed per g CODT substrate. This robust methanogenesis implies that pig manure supernatant, and probably other similar slurries, can b...Continue Reading

References

Jun 10, 2003·Applied Biochemistry and Biotechnology·Ho KangSoon-Chul Park
Apr 11, 2008·Water Science and Technology : a Journal of the International Association on Water Pollution Research·A Schnürer, A Nordberg
Apr 22, 2009·Water Science and Technology : a Journal of the International Association on Water Pollution Research·C Dinamarca, R Bakke
Aug 10, 2010·Water Research·Kanokwan BoeIrini Angelidaki
Nov 6, 2010·Bioresource Technology·C RicoJ L Rico
Jan 1, 2008·Microbes and Environments·Satoshi Hattori
Jan 25, 2012·FEMS Microbiology Ecology·Maialen BarretGuylaine Talbot
Jul 19, 2013·Environmental Microbiology Reports·Ingrid BakkeOlav Vadstein
Aug 29, 2014·BioMed Research International·Wenche BerglandRune Bakke

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Citations

Dec 31, 2015·Journal of Environmental Management·André Cestonaro do AmaralTaís Carla Gaspareto
Apr 25, 2016·Journal of Environmental Management·Liangwei DengZiai Chen
Oct 16, 2015·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Sunil Prasad LohaniSanjay N Khanal
May 6, 2019·Environmental Science and Pollution Research International·Luis A Cueto, Anne M Hansen
May 2, 2018·Applied Microbiology and Biotechnology·Antonio Castellano-HinojosaJesús González-López
Oct 28, 2018·Scientific Reports·Anna Synnøve Røstad NordgårdIngrid Bakke
Nov 6, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Melesse Eshetu MogesRune Bakke
Jan 17, 2017·Environmental Science and Pollution Research International·Zhuo ZengWei Li
May 10, 2020·The Science of the Total Environment·Zhuo ZengPing Zheng

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