Enhancing biohydrogen production from sugar industry wastewater using metal oxide/graphene nanocomposite catalysts in microbial electrolysis cell

Jayabalan, Tamilmani; Matheswaran, Manickam; Preethi, V.; Mohamed, Samsudeen Naina

doi:10.1016/j.ijhydene.2019.09.068

Cited by 92 publications

(32 citation statements)

References 42 publications

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“…When the sulphide ion concentration exceeded 0.2 M, however, the hydrogen production rate decreased unexpectedly. Such a sudden decease of hydrogen production at the higher ion concentration can be explained by photocatalytic corrosion on the catalyst surface, which degrades the hydrogen production efficiency [ 65 , 66 ]. When using sulphite ion-involved wastewater, we observed a similar feature of hydrogen production activities ( Figure 6 b).…”

Section: Resultsmentioning

confidence: 99%

Upcycling of Wastewater via Effective Photocatalytic Hydrogen Production Using MnO2 Nanoparticles—Decorated Activated Carbon Nanoflakes

et al. 2020

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In the present work, we demonstrated the upcycling technique of effective wastewater treatment via photocatalytic hydrogen production by using the nanocomposites of manganese oxide-decorated activated carbon (MnO2-AC). The nanocomposites were sonochemically synthesized in pure water by utilizing MnO2 nanoparticles and AC nanoflakes that had been prepared through green routes using the extracts of Brassica oleracea and Azadirachta indica, respectively. MnO2-AC nanocomposites were confirmed to exist in the form of nanopebbles with a high specific surface area of ~109 m2/g. When using the MnO2-AC nanocomposites as a photocatalyst for the wastewater treatment, they exhibited highly efficient hydrogen production activity. Namely, the high hydrogen production rate (395 mL/h) was achieved when splitting the synthetic sulphide effluent (S2− = 0.2 M) via the photocatalytic reaction by using MnO2-AC. The results stand for the excellent energy-conversion capability of the MnO2-AC nanocomposites, particularly, for photocatalytic splitting of hydrogen from sulphide wastewater.

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Section: Resultsmentioning

confidence: 99%

Upcycling of Wastewater via Effective Photocatalytic Hydrogen Production Using MnO2 Nanoparticles—Decorated Activated Carbon Nanoflakes

et al. 2020

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“…Moreover, energy conversion efficiency with biophotolysis was found to be around 2.4-4% [22]. Jayabalan et al [138] found a maximum H 2 production rate of 4.38 ± 0.11 mmol/L/D from the sugar industry wastewater using MEC. A H 2 production rate of 3.48 L/L/d and an H 2 yield of 511.02 mL H 2 g −1 VS was reported from food waste anaerobic digestion coupled with MEC [117].…”

Section: Challenges With Biohydrogen Production Through Biological Mementioning

confidence: 99%

Critical challenges in biohydrogen production processes from the organic feedstocks

Osman

Deka

Baruah

et al. 2020

Biomass Conv. Bioref.

134

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The ever-increasing world energy demand drives the need for new and sustainable renewable fuel to mitigate problems associated with greenhouse gas emissions such as climate change. This helps in the development toward decarbonisation. Thus, in recent years, hydrogen has been seen as a promising candidate in global renewable energy agendas, where the production of biohydrogen gains more attention compared with fossil-based hydrogen. In this review, biohydrogen production using organic waste materials through fermentation, biophotolysis, microbial electrolysis cell and gasification are discussed and analysed from a technological perspective. The main focus herein is to summarise and criticise through bibliometric analysis and put forward the guidelines for the potential future routes of biohydrogen production from biomass and especially organic waste materials. This research review claims that substantial efforts currently and, in the future, should focus on biohydrogen production from integrated technology of processes of (i) dark and photofermentation, (ii) microbial electrolysis cell (MEC) and (iii) gasification of combined different biowastes. Furthermore, bibliometric mapping shows that hydrogen production from biomethanol and the modelling process are growing areas in the biohydrogen research that lead to zero-carbon energy soon.

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“…For instance, fermentation processes yield 2 mol acetate and 4 mol H 2 from 1 mol of glucose, whereas MECs are capable of producing 12 mol H 2 /mol glucose due to the fact that they also utilize residual organic materials (Parkash, 2016). To explore hydrogen production in the MEC using sugar industrial effluent as a substrate versus phosphate buffer catholyte, Jayabalan et al (2020) used two graphene metal oxide nanocomposites as catalysts. At a 1.0 V voltage, the NiO.rGO nanocomposite demonstrated 4.38 ± 0.11 mmol/L/D as a maximum hydrogen generation rate, 20.8% cathodic hydrogen recovery and 65.6% coloumbic efficiency.…”

Section: Bioremediationmentioning

confidence: 99%

Biohydrogen Production From Biomass Sources: Metabolic Pathways and Economic Analysis

et al. 2021

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The commercialization of hydrogen as a fuel faces severe technological, economic, and environmental challenges. As a method to overcome these challenges, microalgal biohydrogen production has become the subject of growing research interest. Microalgal biohydrogen can be produced through different metabolic routes, the economic considerations of which are largely missing from recent reviews. Thus, this review briefly explains the techniques and economics associated with enhancing microalgae-based biohydrogen production. The cost of producing biohydrogen has been estimated to be between $10 GJ-1 and $20 GJ−1, which is not competitive with gasoline ($0.33 GJ−1). Even though direct biophotolysis has a sunlight conversion efficiency of over 80%, its productivity is sensitive to oxygen and sunlight availability. While the electrochemical processes produce the highest biohydrogen (>90%), fermentation and photobiological processes are more environmentally sustainable. Studies have revealed that the cost of producing biohydrogen is quite high, ranging between $2.13 kg−1 and 7.24 kg−1via direct biophotolysis, $1.42kg−1 through indirect biophotolysis, and between $7.54 kg−1 and 7.61 kg−1via fermentation. Therefore, low-cost hydrogen production technologies need to be developed to ensure long-term sustainability which requires the optimization of critical experimental parameters, microalgal metabolic engineering, and genetic modification.

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Enhancing biohydrogen production from sugar industry wastewater using metal oxide/graphene nanocomposite catalysts in microbial electrolysis cell

Cited by 92 publications

References 42 publications

Upcycling of Wastewater via Effective Photocatalytic Hydrogen Production Using MnO2 Nanoparticles—Decorated Activated Carbon Nanoflakes

Upcycling of Wastewater via Effective Photocatalytic Hydrogen Production Using MnO2 Nanoparticles—Decorated Activated Carbon Nanoflakes

Critical challenges in biohydrogen production processes from the organic feedstocks

Biohydrogen Production From Biomass Sources: Metabolic Pathways and Economic Analysis

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