Influence and strategies for enhanced biohydrogen production from food waste

Dinesh, G. Kumaravel; Chauhan, Rashi; Chakma, Sankar

doi:10.1016/j.rser.2018.05.009

Cited by 120 publications

(27 citation statements)

References 203 publications

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“…5). H 2 yields with simple sugar substrates (like glucose) reported in the literature are often the highest at pH values between 5.0 and 6.0 (Dinesh et al 2018). However, efficient cellulose hydrolysis has been reported at a pH around 7.0 (Lo et al 2009).…”

Section: Resultsmentioning

confidence: 99%

“…So, the enrichment of microorganisms, which have satisfying fermentation performance, is still a daunting task. The theoretical maximum H 2 yield of dark fermentative hydrogen production is 4 mol H 2 /mol hexose (Dinesh et al 2018). Recently, a high yield of 1.92 mol H 2 /mol hexose was obtained with co-culture of Clostridium termitidis and Clostridium beijerinckii with cellulose as a substrate (Gomez-Flores et al 2017).…”

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confidence: 99%

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Direct Fermentative Hydrogen Production from Cellulose and Starch with Mesophilic Bacterial Consortia

Zagrodnik

Seifert

2020

Polish Journal of Microbiology

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Hydrogen produced from lignocellulose biomass is deemed as a promising fuel of the future. However, direct cellulose utilization remains an issue due to the low hydrogen yields. In this study, the long-term effect of inoculum (anaerobic sludge) heat pretreatment on hydrogen production from untreated cellulose and starch was evaluated during repeated batch processes. The inoculum pretreatment at 90°C was not sufficient to suppress H2 consuming bacteria, both for starch and cellulose. Although hydrogen was produced, it was rapidly utilized with simultaneous accumulation of acetic and propionic acid. The pretreatment at 100°C (20 min) resulted in the successful enrichment of hydrogen producers on starch. High production of hydrogen (1.2 l H2/lmedium) and H2 yield (1.7 mol H2/molhexose) were maintained for 130 days, with butyric (1.5 g/l) and acetic acid (0.65 g/l) as main byproducts. On the other hand, the process with cellulose showed lower hydrogen production (0.3 l H2/lmedium) with simultaneous high acetic acid (1.4 g/l) and ethanol (1.2 g/l) concentration. Elimination of sulfates from the medium led to the efficient production of hydrogen in the initial cycles – 0.97 mol H2/molhexose (5.93 mmol H2/gcellulose). However, the effectiveness of pretreatment was only temporary for cellulose, because propionic acid accumulation (1.5 g/l) was observed after 25 days, which resulted in lower H2 production. The effective production of hydrogen from cellulose was also maintained for 40 days in a repeated fed-batch process (0.63 mol H2/molhexose).

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Direct Fermentative Hydrogen Production from Cellulose and Starch with Mesophilic Bacterial Consortia

Zagrodnik

Seifert

2020

Polish Journal of Microbiology

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“…Therefore for the technology to be economically viable, increasing efforts have been made to utilize low cost substrates such as food processing wastes and crop residues instead of pure chemicals. [167][168][169] Benefitting from development of photobioreactors for algal biorefinery, pilot studies on photofermentative hydrogen production have been more common and in larger scales than those on other methods of hydrogen production. Herein we highlight a few recent and notable pilot-scale examples, the operating conditions and performance of which are summarized in Table 3.…”

Section: Photobiological Demonstrationsmentioning

confidence: 99%

Research advances towards large-scale solar hydrogen production from water

et al. 2019

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Solar hydrogen production from water is a sustainable alternative to traditional hydrogen production route using fossil fuels. However, there is still no existing large-scale solar hydrogen production system to compete with its counterpart. In this Review, recent developments of four potentially cost-effective pathways towards large-scale solar hydrogen production, viz. photocatalytic, photobiological, solar thermal and photoelectrochemical routes, are discussed, respectively. The limiting factors including efficiency, scalability and durability for scale-up are assessed along with the field performance of the selected systems. Some benchmark studies are highlighted, mostly addressing one or two of the limiting factors, as well as a few recent examples demonstrating upscaled solar hydrogen production systems and emerging trends towards large-scale hydrogen production. A techno-economic analysis provides a critical comparison of the levelized cost of hydrogen output via each of the four solar-to-hydrogen conversion pathways.

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“…Among the products that can be produced in MECs, H 2 has demonstrated very promising commercialization potential as a renewable energy, considering the convenience for storage and transportation, as well as the rapidly increasing market demand of H 2 [19]. The system efficiency of MECs is significantly higher than that of other BESs [18], and therefore, more and more research attention has been focused on producing H 2 in MECs using a variety of wastes and wastewater [20][21][22][23]. During the recent years, remarkable advances in MEC-based H 2 production have been reported, with H 2 yield (i.e., moles of produced hydrogen per moles of consumed substrate, or mass of produced hydrogen per mass of consumed substrate) raised from less than 50% to nearly 100%, and H 2 production rates elevated from below 0.1 m 3 H 2 /m 3 reactor/day to as high as 50 m 3 H 2 /m 3 reactor/day [18].…”

Section: Microbial Electrolysis Cells (Mecs)mentioning

confidence: 99%

Applications of Emerging Bioelectrochemical Technologies in Agricultural Systems: A Current Review

Chen

Anandhi

2018

Energies

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Background: Bioelectrochemical systems (BESs) are emerging energy-effective and environment-friendly technologies. Different applications of BESs are able to effectively minimize wastes and treat wastewater while simultaneously recovering electricity, biohydrogen and other value-added chemicals via specific redox reactions. Although there are many studies that have greatly advanced the performance of BESs over the last decade, research and reviews on agriculture-relevant applications of BESs are very limited. Considering the increasing demand for food, energy and water due to human population expansion, novel technologies are urgently needed to promote productivity and sustainability in agriculture. Methodology: This review study is based on an extensive literature search regarding agriculture-related BES studies mainly in the last decades (i.e., 2009–2018). The databases used in this review study include Scopus, Google Scholar and Web of Science. The current and future applications of bioelectrochemical technologies in agriculture have been discussed. Findings/Conclusions: BESs have the potential to recover considerable amounts of electric power and energy chemicals from agricultural wastes and wastewater. The recovered energy can be used to reduce the energy input into agricultural systems. Other resources and value-added chemicals such as biofuels, plant nutrients and irrigation water can also be produced in BESs. In addition, BESs may replace unsustainable batteries to power remote sensors or be designed as biosensors for agricultural monitoring. The possible applications to produce food without sunlight and remediate contaminated soils using BESs have also been discussed. At the same time, agricultural wastes can also be processed into construction materials or biochar electrodes/electrocatalysts for reducing the high costs of current BESs. Future studies should evaluate the long-term performance and stability of on-farm BES applications.

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Influence and strategies for enhanced biohydrogen production from food waste

Cited by 120 publications

References 203 publications

Direct Fermentative Hydrogen Production from Cellulose and Starch with Mesophilic Bacterial Consortia

Direct Fermentative Hydrogen Production from Cellulose and Starch with Mesophilic Bacterial Consortia

Research advances towards large-scale solar hydrogen production from water

Applications of Emerging Bioelectrochemical Technologies in Agricultural Systems: A Current Review

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