Biohydrogen and Biogas – An overview on feedstocks and enhancement process

Bharathiraja, B.; Sudharsanaa, T.; Bharghavi, A.; Jayamuthunagai, J.; Praveenkumar, R.

doi:10.1016/j.fuel.2016.08.030

Cited by 197 publications

(75 citation statements)

References 209 publications

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“…The future prospects of coupling microalgae cultivation with other processes such as with wastewater treatment and carbon capture are more promising to reduce the cost and make this fuel from microalgae more competitive . Furthermore, biogas from microalgae is one of the newly sought sources of fuel as it can aid in waste management by decomposing organic substances such as kitchen waste, crop waste and wastewater . Moreover, Harun et al stated that there is an effective technology for producing biogas from microalgae where multi‐variant calculation of profitability is being carried out for different methods of energetic exploitation of marine algae.…”

Section: Industrial Potentialmentioning

confidence: 99%

Analysis of Economic and Environmental Aspects of Microalgae Biorefinery for Biofuels Production: A Review

et al. 2018

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Microalgae are considered promising feedstock for the production of biofuels and other bioactive compounds, yet there are still challenges on commercial applications of microalgae-based products. This review focuses on the economic analysis, environmental impact, and industrial potential of biofuels production from microalgae. The cost of biofuels production remains higher compared to conventional fuel sources. However, integration of biorefinery pathways with biofuels production for the recovery of value-added products (such as antioxidants, natural dyes, cosmetics, nutritional supplements, polyunsaturated fatty acids, and so forth) could substantially reduce the production costs. It also paves the way for sustainable energy resources by significantly reducing the emissions of CO , NO , SO , and heavy metals. Large-scale biofuels production has yet to be successfully commercialized with many roadblocks ahead and heavy competition with conventional fuel feedstock as well as technological aspects. One of the prominent challenges is to develop a cost-effective method to achieve high-density microalgal cultivation on an industrial scale. The biofuels industry should be boosted by Government's support in the form of subsidies and incentives, for addressing the pressing climate change issues, achieving sustainability, and energy security.

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Section: Industrial Potentialmentioning

confidence: 99%

Analysis of Economic and Environmental Aspects of Microalgae Biorefinery for Biofuels Production: A Review

et al. 2018

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“…In GW the fermentable sugars are present in complex and hardly digestible forms, while FW is an easier biodegradable substrate which is also a source of nitrogen (that is lacking in GW). Nevertheless, the presence of lipids and proteins in FW composition is generally associated with a lower hydrogen production than carbohydrate-rich organic wastes (Bharathiraja et al, 2016). Co-fermentation of FW and GW may contribute to overcome the disadvantages of single fermentation and potentially improve the hydrogen production from these wastes.…”

Section: Introductionmentioning

confidence: 99%

Garden and food waste co-fermentation for biohydrogen and biomethane production in a two-step hyperthermophilic-mesophilic process

Abreu

Tavares

Alves

et al. 2019

Bioresource Technology

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A B S T R A C TCo-fermentation of garden waste (GW) and food waste (FW) was assessed in a two-stage process coupling hyperthermophilic dark-fermentation and mesophilic anaerobic digestion (AD). In the first stage, biohydrogen production from individual substrates was tested at different volatile solids (VS) concentrations, using a pure culture of Caldicellulosiruptor saccharolyticus as inoculum. FW concentrations (in VS) above 2.9 g L −1 caused a lag phase of 5 days on biohydrogen production. No lag phase was observed for GW concentrations up to 25.6 g L −1 . In the co-fermentation experiments, the highest hydrogen yield (46 ± 1 L kg −1 ) was achieved for GW:FW 90:10% (w/w). In the second stage, a biomethane yield of 682 ± 14 L kg −1 was obtained using the end-products of GW:FW 90:10% co-fermentation. The energy generation predictable from co-fermentation and AD of GW:FW 90:10% is 0.5 MJ kg −1 and 24.4 MJ kg −1 , respectively, which represents an interesting alternative for valorisation of wastes produced locally in communities. (M.M. Alves), acavaleiro@deb.uminho.pt (A.J. Cavaleiro), alcina@deb.uminho.pt (M.A. Pereira).

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“…Recent concerns over climate change and depleting fossil fuels are driving to develop alternative biofuels as replacements for non-renewable fossil fuels. The challenges of dwindling fossil fuel reserves and anthropogenic climate change are driving intense research into sustainable energy resources (Bharathiraja et al, 2016;Chawla et al, 2018;Hallenbeck, 2009).…”

Section: Introductionmentioning

confidence: 99%

Anaerobic membrane bioreactors for biohydrogen production: Recent developments, challenges and perspectives

Aslam

Ahmad

Yasin

et al. 2018

Bioresource Technology

108

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Biohydrogen as one of the most appealing energy vector for the future represents attractive avenue in alternative energy research. Recently, variety of biohydrogen production pathways has been suggested to improve the key features of the process. Nevertheless, researches are still needed to overcome remaining barriers to practical applications such as low yields and production rates. Considering practicality aspects, this review emphasized on anaerobic membrane bioreactors (AnMBRs) for biological hydrogen production. Recent advances and emerging issues associated with biohydrogen generation in AnMBR technology are critically discussed. Several techniques are highlighted that are aimed at overcoming these barriers. Moreover, environmental and economical potentials along with future research perspectives are addressed to drive biohydrogen technology towards practicality and economical-feasibility.

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Biohydrogen and Biogas – An overview on feedstocks and enhancement process

Cited by 197 publications

References 209 publications

Analysis of Economic and Environmental Aspects of Microalgae Biorefinery for Biofuels Production: A Review

Analysis of Economic and Environmental Aspects of Microalgae Biorefinery for Biofuels Production: A Review

Garden and food waste co-fermentation for biohydrogen and biomethane production in a two-step hyperthermophilic-mesophilic process

Anaerobic membrane bioreactors for biohydrogen production: Recent developments, challenges and perspectives

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