Abstract
This study evaluated methane production and nutrient recovery from industrially produced, lipid extracted algal biomass (LEA) of Auxenochlorella protothecoides using semi-continuous anaerobic digestion (AD) at different organic loading rates (OLRs) and hydraulic retention times (HRTs). It was shown, that AD can improve biofuel production efficiency and sustainability, especially for scaled processes, through up to 30% increase in energy generation (up to 0.25 L of methane per g of LEA volatile solids) and partial nutrient recovery and recycling. The nutrient recycling with the AD effluent may reduce the cost of the supplied fertilizers by up to 45%. However, methane production was limited to nearly 50% of theoretical maxima potentially due to biomass recalcitrance and inhibition effects from the residual solvent in the LEA. Therefore, further AD optimization is required to maximize methane yield and nutrient recovery as well as investigation and elimination of inhibition from solvent residues.
References
Aug 21, 1973·Archiv für Mikrobiologie·M V Conte, R S Pore
Jun 12, 2003·Bioresource Technology·Nathan O NelsonDean L Hesterberg
Oct 7, 2003·Annual Review of Biochemistry·Ruma Banerjee, Stephen W Ragsdale
Apr 3, 2007·Bioresource Technology·Ye ChenKurt S Creamer
May 1, 1983·Biotechnology and Bioengineering·M J Playne, B R Smith
Jul 14, 2009·Bioresource Technology·José Angel Siles LópezAntonio Martín Martín
Jun 15, 2011·Bioresource Technology·Jun ZhangXing Yan
Nov 4, 2011·Microbial Cell Factories·Wei-Luen YuMichael D Burkart
Sep 10, 2013·Bioresource Technology·Yingying GaoChanghai Wang
Nov 1, 1981·Planta·E Fernández, J Cárdenas
Jan 29, 2014·Bioresource Technology·Pavlo BohutskyiEdward J Bouwer
Mar 1, 1972·Planta·A W AtkinsonP C John
Apr 17, 2014·Bioresource Technology·Baisuo ZhaoCraig Frear
May 20, 2014·Applied Microbiology and Biotechnology·Pavlo BohutskyiF C Thomas Allnutt
Aug 26, 2014·Bioresource Technology·D HernándezA Bertucco
Citations
Jan 2, 2016·Bioresource Technology·P R PostmaG Ferrari
May 8, 2015·Applied Microbiology and Biotechnology·Pavlo BohutskyiEdward J Bouwer
May 11, 2016·Bioresource Technology·Rahulkumar MauryaSandhya Mishra
Oct 30, 2016·Bioresource Technology·Pavlo BohutskyiEdward J Bouwer
Oct 14, 2016·International Journal of Molecular Sciences·Luca ZulianiMatteo Ballottari
Jan 4, 2017·International Journal of Molecular Sciences·Junping LvShulian Xie
Apr 14, 2017·Waste Management·Dinh Duc NguyenHuu Hao Ngo
Jan 18, 2017·PeerJ·Jessica M MorrisonNoha H Youssef
Jul 6, 2017·International Journal of Molecular Sciences·Krystian MiazekDorothee Goffin
Feb 15, 2019·The Science of the Total Environment·Pavlo BohutskyiMichael J Betenbaugh
Apr 4, 2018·Bioresource Technology·Pavlo BohutskyiAlexander S Beliaev
Jun 27, 2021·Environmental Science and Pollution Research International·Faiz Ahmad AnsariFaizal Bux