An overview of fungal pretreatment processes for anaerobic digestion: Applications, bottlenecks and future needs

Kainthola, Jyoti; Podder, Aditi; Fechner, Marcus; Goel, Ramesh

doi:10.1016/j.biortech.2020.124397

Cited by 61 publications

(31 citation statements)

References 79 publications

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“…Several studies have found that the combination of WRF pretreatment with other physicochemical methods cannot only reduce the time necessary for the whole process, but also introduce cost-effectiveness (Shirkavand et al 2016;Xie et al 2017). Anaerobic digestion of lignocellulosic biomass has been considered as an efficient way to produce energy (Kainthola et al 2021). However, application of WRF in the pretreatment of substrates for anaerobic digestion started late, and further exploration is necessary.…”

Section: High Frequency Abstract Analysismentioning

confidence: 99%

Bibliometric analysis of global research on white rot fungi biotechnology for environmental application

Xiao

Wang

2021

Environ Sci Pollut Res

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In recent years, white rot fungi (WRFs) have received tremendous attention as a biotechnological tool for environmental pollution control. In order to systematically and comprehensively describe the progress, trends, and hotspots of WRF biotechnology in the field of environmental pollution control, the 3967 related publications from 2003 to 2020 were collected from Web of Science Core Collection database, and the bibliometric characteristics including publication output, country, institution, journal, author, citation frequency, h-index, and research focus were evaluated by using Excel 2007, CiteSpace V, and VOSviewer. The results indicated that the number of research publications increased rapidly before 2009, but after that, the number of publications fluctuated in a certain range. China and USA were the most productive countries and the most active country in international cooperation. In this field, most authors tend to cooperate within a small group. The journal and subject category with the largest number of publications are "International Biodeterioration & Biodegradation" and "Biotechnology Applied Microbiology", respectively. The analysis of high-frequency keywords revealed that "laccase", "biodegradation", "decolorization", and "Phanerochaete chrysosporium" were the most cited terms among all publications. The pretreatment of biomass waste, decolorization of dye wastewater, and bioremediation of polluted environment are the key research directions of WRF biotechnology. Finally, the frontier topics and active authors in this research field were identified using burst detection. We believe that this bibliometric study provides a comprehensive and systematic overview and promoted the future cooperative research and knowledge exchange in this field of WRF biotechnology for environmental applications.

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Section: High Frequency Abstract Analysismentioning

confidence: 99%

Bibliometric analysis of global research on white rot fungi biotechnology for environmental application

Xiao

Wang

2021

Environ Sci Pollut Res

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“…Bio-delignification is an attractive approach because of its cost-effectiveness, lowenergy requirement, low environment impact, and low formation of toxic materials such as furfural, hydroxymethylfurfural, etc., which could negatively affect anaerobic digestion [41].…”

Section: Bio-delignification With White-rot Fungimentioning

confidence: 99%

“…Despite B. adusta pretreatments of GW being eco-friendly, cost-effective, and seemingly not affected by sugar losses [41,47,65,71], in comparison with other chemical treatments, it is a time consuming process, which must have a detrimental effect on the overall process costs. This application deserves a specific technoeconomic analysis that accounts for capital costs, energy consumption, requirements of chemicals, and waste management; fungal pretreatment imposes extra costs, which often forms a chief hindrance for industrial scaling up of lignocellulosic biomass.…”

Section: Anaerobic Digestion (Ad) Of Ofmsw and Bio-delignificated Gwmentioning

confidence: 99%

Bio-Delignification of Green Waste (GW) in Co-Digestion with the Organic Fraction of Municipal Solid Waste (OFMSW) to Enhance Biogas Production

Semeraro¹,

Summa

Costa

et al. 2021

Applied Sciences

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The organic fraction of municipal solid waste (OFMSW) is recognized as a suitable substrate for the anaerobic digestion (AD) process and is currently considered a mature technology. A promising strategy to enhance biogas yield and productivity is the co-digestion of OFMSW with other organic biomass, such as green waste (GW), a mixture of leaves, grass, and woody materials originated from private yards and public greenspace management. The main limitation to the use of GW for biogas production is the high percentage of the lignocellulosic fraction, which makes necessary a pretreatment of delignification to dissolve the recalcitrant structure. In this study, a new strategy of sustainable bio-delignification using the white-rot fungi Bjerkandera adusta (BA) in comparison with other chemical pretreatments were investigated. Untreated and treated GW were, respectively, submitted to anaerobic co-digestion with OFMSW. AD processes were carried out in a lab-scale plant for 30 days in thermophilic conditions (55 °C). Biogas cumulative production was increased by about 100% in the case of treated GW compared with that of just OFMSW, from 145 to 289 Nm3 CH4/ton SV, and productivity almost doubled from 145 to 283 Nm3/ton FM * day. The measured average methane content values in the cumulative biogas were 55% from OFMSW and 54% from GW. Moreover, over 95% of the biogas was produced in 20 days, showing the potential opportunity to reduce the AD time.

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“…Pretreating corn stover is to reduce the recalcitrance of lignin and increase enzymatic contact surface area, so that increases the biogas yield [9,11]. Various pretreatment methods have been tested such as physical pretreatment (steam-explosion [12], hydrothermolysis [13], and irradiation [14]), chemical pretreatment (acid [15] and alkali [16]), and biological pretreatment (fungi [17] and enzymes [18]). Co-digestion refers to digesting two or more feedstocks simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Operating Methods in Cartridge Anaerobic Digestion of Corn Stover

2021

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Anaerobic digestion of lignocellulosic biomass faces changes such as biomass floating and effluent discharge. To overcome these challenges, a unique removable cartridge anaerobic digester was built and tested using corn stover as the feedstock. Three operating methods differing in the number of cartridges and days of rotation were tested. The first method used three cartridges, with each cartridge being rotated every 7 days. The second and third methods employed four cartridges, with cartridges being rotated every 7 and 9-10 days, respectively. The retention time for methods 1, 2, and 3 was 21, 28, and 38 days, respectively. After observation spanning 1 year, it was found that the cartridge digester was capable of generating a stable amount of biogas for energy without biomass floating or effluent discharging issues. The average daily methane yield from each method was 7.57, 7.11, and 6.82 L/day/kg-VS, and the cumulative methane yield was 158. 95, 199.04, and 259.00 L/kg-VS, respectively. Ammonium nitrogen and pH values were in normal ranges throughout the experiment. This study provided new knowledge in operating and optimizing this cartridge digester, which may be broadly used for the anaerobic digestion of lignocellulosic biomass in the near future.

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An overview of fungal pretreatment processes for anaerobic digestion: Applications, bottlenecks and future needs

Cited by 61 publications

References 79 publications

Bibliometric analysis of global research on white rot fungi biotechnology for environmental application

Bibliometric analysis of global research on white rot fungi biotechnology for environmental application

Bio-Delignification of Green Waste (GW) in Co-Digestion with the Organic Fraction of Municipal Solid Waste (OFMSW) to Enhance Biogas Production

Comparison of Operating Methods in Cartridge Anaerobic Digestion of Corn Stover

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