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Influence of liquid-to-biogas ratio and alkalinity on the biogas upgrading performance in a demo scale algal-bacterial photobioreactor

Author
Marín, D.; Ortiz, A.; Diez Montero, Ruben; Uggetti, E.; Garcia, J.; Lebrero, R.; Muñoz Torre, Raul
Type of activity
Journal article
Journal
Bioresource technology
Date of publication
2019-05
Volume
280
First page
112
Last page
117
DOI
10.1016/j.biortech.2019.02.029
Project funding
Innovative Eco-Technologies for Resource Recovery from Wastewater
Repository
http://hdl.handle.net/2117/129741 Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S096085241930210X Open in new window
Abstract
The influence of the liquid-to-biogas ratio (L/G) and alkalinity on methane quality was evaluated in a 11.7¿m3 outdoors horizontal semi-closed tubular photobioreactor interconnected to a 45-L absorption column (AC). CO2 concentrations in the upgraded methane ranged from <0.1 to 9.6% at L/G of 2.0 and 0.5, respectively, with maximum CH4 concentrations of 89.7% at a L/G of 1.0. Moreover, an enhanced CO2 removal (mediating a decrease in CO2 concentration from 9.6 to 1.2%) and therefore higher CH4 ...
Citation
Marín, D. [et al.]. Influence of liquid-to-biogas ratio and alkalinity on the biogas upgrading performance in a demo scale algal-bacterial photobioreactor. "Bioresource technology", Maig 2019, vol. 280, p. 112-117.
Keywords
Algal-bacterial photobioreactor Alkalinity Biogas upgrading Liquid/gas ratio Outdoors conditions
Group of research
GEMMA - Group of Environmental Engineering and Microbiology

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