The effect of enzyme addition on anaerobic digestion of Jose Tall Wheat Grass

Romano, Rowena T.; Zhang, Ruihong; Teter, Sarah; McGarvey, Jeffery A.

doi:10.1016/j.biortech.2008.12.065

Cited by 154 publications

(83 citation statements)

References 24 publications

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“…Analysis of variance (P ≤ 0.05) showed that these methane yields did not differ significantly between them and the control (no enzyme addition). These findings are in line with other studies where insignificant changes in BMP were obtained when enzymes were added to lignocellulosic wastes [22,31]. The BMP may not improve after enzyme addition in AD systems; nevertheless, a considerable improvement of the hydrolysis rate can be achieved [31].…”

Section: Inoculum Activity and Substrate Characterizationsupporting

confidence: 90%

Fresh banana pseudo-stems as a tropical lignocellulosic feedstock for methane production

Liu

Nges

et al. 2016

Energ Sustain Soc

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Background: The banana pseudo-stem is a low-lignin-content lignocellulosic biomass that can be used for methane production. In recent years, anaerobic digestion (AD) of dried banana stems for methane production has attracted considerable attention. However, there is limited information regarding methane production from the fresh banana pseudo-stem. The direct usability of fresh banana stems as a resource for renewable energy production through AD is a called upon prerequisite for an improved waste management system culminating in a sustainable as well as socioeconomic development of local banana-producing communities. Methods: In this study, three series of experiments were performed simultaneously to investigate the methane production from fresh banana pseudo-stems for the first time. The tests included size reduction, enzyme addition, and co-digestion of banana stems with cow manure.

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Section: Inoculum Activity and Substrate Characterizationsupporting

confidence: 90%

Fresh banana pseudo-stems as a tropical lignocellulosic feedstock for methane production

Liu

Nges

et al. 2016

Energ Sustain Soc

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“…As in the studies of ROMANO et al, (2009) andDIAK et al, (2012), results from batch experiments showed that enzymatic treatment does not increase hydrolysis and digestion rates in maize silage chopped at different lengths and with the addition of cellulase. No significant improvements (p-value>0.05) were observed in all variables for MSL and MSL + C compared with Ms and MSS.…”

Section: Kinetics and Biodegradabilitymentioning

confidence: 68%

“…ROMANO et al (2009) found no biogas production improvement when adding ellulose, hemicellulase and ᵦ-glucosidase to a thermophilic anaerobic digestion of wheat grass. Three digestion configurations were simulated and investigated.…”

Section: Introductionmentioning

confidence: 94%

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Cellulase effect on anaerobic digestion of maize silage under discontinuous operation

et al. 2015

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This paper studied the effect of adding an enzyme ( ellulose) on anaerobic digestion of maize silage. We compared materials at chopping lengths of 8 mm (MSL), 4mm (MSS) and natural size (Ms) under a mesophilic and discontinuous operation (batch process). Hence, we found the process to be significantly influenced by particle size. Moreover, the ellulose addition did not significantly impact biogas production after a 35-day digestion period. Ms and MSS displayed an improved response to all variables when compared with MSL and MSL+C, with significant differences. Studies on the refractory fraction at infinite time (R 0 ) have demonstrated that the lowest values correspond to Ms and MSS (0.122 and 0.155, respectively

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“…Various types of pre-treatment for AD has been suggested for enhanced waste treatment and stabilisation, such as thermal, ultrasonic, chemical (ozone, H 2 O 2 , etc.) and enzymatic pre-treatment [34,97,[112][113][114][115]. The feasibility of many such treatment options are, however, not well proven either economically or technically.…”

Section: Degradation Of Recalcitrant and Toxic Organics Using Aeratiomentioning

confidence: 99%

Oxygen Effects in Anaerobic Digestion – A Review

Botheju¹,

Bakke²

2011

TOWMJ

145

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This article reviews the experimental and theoretical studies conducted on the possible effects of oxygen in biogas generating anaerobic digesters. The interactions of oxygen with various biochemical processes associated with anaerobic digestion are discussed together with other relevant aspects. The conventional perception of oxygen being merely toxic in anaerobic digestion (AD) is refuted. Digesters can withstand significant levels of oxygenation without drastic negative impacts. Limited quantities of oxygen can even lead to improved AD reactor performance under certain operating conditions. Co-existence of anaerobic and aerobic cultures in a single bioreactor environment has been demonstrated. It is shown that the partial aeration assisted AD can serve as a beneficial treatment strategy for simultaneous waste treatment and energy generation, for a multitude of organic waste categories.

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The effect of enzyme addition on anaerobic digestion of Jose Tall Wheat Grass

Cited by 154 publications

References 24 publications

Fresh banana pseudo-stems as a tropical lignocellulosic feedstock for methane production

Fresh banana pseudo-stems as a tropical lignocellulosic feedstock for methane production

Cellulase effect on anaerobic digestion of maize silage under discontinuous operation

Oxygen Effects in Anaerobic Digestion – A Review

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