Performance of a novel two-phase continuously fed leach bed reactor for demand-based biogas production from maize silage

Linke, Bernd; Rodríguez-Abalde, Ángela; Jost, Carsten; Krieg, Andreas

doi:10.1016/j.biortech.2014.11.070

Cited by 30 publications

(20 citation statements)

References 25 publications

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“…On-demand biogas production and its subsequent electrication or its implementation in Power to Gas strategies has been identied by several researchers as a vital approach to provide short and long term as well as secondary and tertiary, positive and negative balancing power (Hahn et al, 2014;Linke et al, 2015). In micro gas grids the biogas production can avoid the necessity of large gas reservoirs by following demand curves and provide gas when needed.…”

Section: Introductionmentioning

confidence: 99%

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Demand-driven biogas production in anaerobic filters

Lemmer

Krümpel

2017

Applied Energy

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Section: Introductionmentioning

confidence: 99%

“…Upow sludge blanket reactor (UASB) or anaerobic lter (AF) where the majority of biogas production takes place (Linke et al, 2015;. In the acidication stage a hydrolysate rich in organic acids and other intermediary products such as alcohols, sugars, and amino acids is produced.…”

Section: Introductionmentioning

confidence: 99%

Demand-driven biogas production in anaerobic filters

Lemmer

Krümpel

2017

Applied Energy

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“…The total volatile fatty acids (VFAs) values are important for AD operation, and those values were used here as the critical indicators of methanogenesis (Liew et al 2011;Linke et al 2015). The VFAs and changes in biogas production yield, pH, total organic carbon (TOC), and total nitrogen (TN) contents are shown in Fig.…”

Section: Performance Of Anaerobic Digestion Process Variation Of Chemmentioning

confidence: 99%

Production of Bioflocculants Prepared from Wastewater Supernatant of Anaerobic Co-Digestion of Corn Straw and Molasses Wastewater Treatment

Zhao

Sun

et al. 2017

BioResources

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a Novel bioflocculants (BS-MBF) were prepared using the wastewater supernatant from anaerobic co-digestion of corn straw and molasses wastewater as a nutrient resource. Acetic acid and ethanol were the dominant fermentation products during the anaerobic digestion process and were estimated to be 50.5% and 30.0%, respectively, after 150 d of operation. Equal volumes of bioflocculant producing bacteria F2 (Rhizobium radiobacter) and F6 (Bacillus sphaericus) were mixed to form F + , which was inoculated to wastewater supernatant at different times. A maximum flocculation activity of 91.3% was achieved, and 2.32 g/L of purified bioflocculant was extracted when a compound medium from 110-d wastewater supernatant was used. The removal efficiencies of heavy metals from simulated electroplating wastewater were tested by using these prepared bioflocculants. The optimal conditions for heavy metal removal to BS-MBF were found to be at 374 mg/L at an initial pH of 6.0 and a contact time of 40 min. The adsorption capacities for Cu 2+ and Zn 2+ reached more than 90%, while for Cr 6+ it reached approximately 30%. Overall, the study showed for the first time that wastewater supernatant from anaerobic co-digestion of corn straw and molasses wastewater can be used for producing bioflocculants, which can be effectively used to remove heavy metals from electroplating wastewater.

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“…Linke et al. presented a new two‐phase semicontinuous feeding reactor system consisting of a leach bed reactor and an AF . In the leach bed reactor, the solids formed a floating bed on the top.…”

Section: Introductionmentioning

confidence: 99%

“…The reactors operated with a mixture of maize silage and straw and obtained excellent hydrolytic and methanogenic performance. Linke et al presented a new two-phase semicontinuous feeding reactor system consisting of a leach bed reactor and an AF [20]. In the leach bed reactor, the solids formed a floating bed on the top.…”

mentioning

confidence: 99%

Decoupling the retention time of easily degradable and persistent substances using ultrafiltration membranes increases biogas production yield

Schreiber

Vollmer

Breuer

et al. 2015

Engineering in Life Sciences

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The decoupling of the retention time of easily degradable and persistent substances relieves the degradation process from inhibitors and increases the biogas yield. Anaerobic digestion of maize silage was investigated in a pilot‐scale plant with a coupled ultrafiltration membrane. The aim of the study was the evaluation of the influence of the membrane‐based relief of the degradation process and the increase of the retention time of persistent substances. For that purpose, the fermenter content was separated into solid and liquid fractions. The solid fraction was recirculated to the fermenter for longer retention time and higher substrate degradation rates. The fermentation process was improved by the removal of the liquid fraction and adding volatile fatty acids. The results showed an increase of the biogas yield by 7.2% in comparison to the anaerobic digestion without membrane filtration.

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Performance of a novel two-phase continuously fed leach bed reactor for demand-based biogas production from maize silage

Cited by 30 publications

References 25 publications

Demand-driven biogas production in anaerobic filters

Demand-driven biogas production in anaerobic filters

Production of Bioflocculants Prepared from Wastewater Supernatant of Anaerobic Co-Digestion of Corn Straw and Molasses Wastewater Treatment

Decoupling the retention time of easily degradable and persistent substances using ultrafiltration membranes increases biogas production yield

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