Article
Environmental Sciences
G. Trancone, D. Spasiano, M. Race, V Luongo, A. Petrella, F. Pirozzi, U. Fratino, A. F. Piccinni
Summary: This study evaluates the efficiency of mesophilic and thermophilic dark fermentation (DF) using glucose as the substrate for the biological treatment of asbestos cement waste (ACW). The results show that both types of fermentation partially convert glucose into organic acids, successfully degrading asbestos fibers and producing hydrogen-rich biogas.
Article
Energy & Fuels
Chandan Mahata, Suman Dhar, Subhabrata Ray, Debabrata Das
Summary: This study found that thermal pretreated organic waste can be used as an effective feedstock for dark fermentative hydrogen production, achieving higher H-2 production and yield. Various kinetic models were used to analyze the effect of pretreatment, and it was shown that gaseous energy recovery was improved by two folds.
Article
Chemistry, Physical
E. R. Mikheeva, I. Katraeva, D. L. Vorozhtsov, D. A. Kovalev, A. A. Kovalev, V. S. Grigoriev, Yu Litti
Summary: The feasibility of continuous biohydrogen production from industrial wastewater through the dark fermentation process was evaluated in this study. The results showed that producing biohydrogen from confectionery wastewater is promising. The fluidized bed reactor achieved higher hydrogen yield and production rate under certain operating parameters.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Nusara Sinbuathong, Boonsong Sillapacharoenkul
Summary: Biohydrogen can be produced from starch factory wastewater and mixed microorganisms through dark fermentation. The efficiency of hydrogen production is influenced by the initial pH level during fermentation, with alkaline-treated bacteria showing higher yield and production rate. No methane gas was observed in the gas mixture produced throughout the study.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Sopee Panin, Worajit Setthapun, Alicia Amelia Elizabeth Sinsuw, Hathaithip Sintuya, Chen-Yeon Chu
Summary: This study utilized enriched microflora to produce biohydrogen from vegetable residues through dark fermentation. Mashed onion substrate with bioreactor inoculum achieved the maximum hydrogen production within 7 days. The research suggests that utilizing enriched microflora for vegetable waste treatment is a potential pathway for green energy production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Multidisciplinary
Salma Aathika Abdur Rawoof, P. Senthil Kumar, Dai-Viet N. Vo, Sivanesan Subramanian
Summary: This article discusses factors influencing the production of biohydrogen and biomethane, as well as methods to improve efficiency, such as co-digestion, pre-treatment, application of additives, and optimal digester design.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Review
Energy & Fuels
Jey-R S. Ventura, Saul M. Rojas, Ruby Lynn G. Ventura, Fidel Rey P. Nayve, Nacita B. Lantican
Summary: Fossil fuel consumption leads to resource depletion and climate change, prompting a global interest in alternative energy sources, with a focus on biological fermentation for hydrogen production. The Philippines' agricultural abundance positions it as a promising candidate for biohydrogen production from biomass, including various agricultural wastes.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Energy & Fuels
Chaoyang Lu, Guangtao Wang, Quanguo Zhang, Xudong Yang, Jicai Yu, Tao Liu, Francesco Petracchini, Zhiping Zhang, Yong Sun, Danping Jiang, Xiaoyu Liang, Yameng Li, Yang Zhang, Tian Zhang, Huan Zhang
Summary: Biorefinery technology contributes to the realization of the Paris Agreement, China's carbon peak and carbon neutralization. This study investigated the gas, liquid, and kinetic characteristics of four biorefinery methods using corn stover as the raw material. The results provide insights into the efficient utilization of biomass resources and a comprehensive evaluation of biorefinery technology.
Article
Energy & Fuels
Balasubramani Ramprakash, Aran Incharoensakdi
Summary: The study investigated the conversion of garden wastes into hydrogen using different pretreatment and hydrolysis methods, finding that the optimal conditions for maximum hydrogen production were 2% sulfuric acid and 2% Viscozyme L. The fermentation by Escherichia coli of hydrolyzate from combined acid and enzyme treatment resulted in a 2.7-fold increase in hydrogen production compared to untreated garden wastes.
Article
Energy & Fuels
Tinku Casper D'Silva, Sameer Ahmad Khan, Subodh Kumar, Dushyant Kumar, Adya Isha, Saptashish Deb, Saurabh Yadav, Biju Illathukandy, Ram Chandra, Virendra Kumar Vijay, Paruchuri M. V. Subbarao, Zoltan Bagi, Kornel L. Kovacs, Liang Yu, Bhushan P. Gandhi, Kirk T. Semple
Summary: Green and clean hydrogen production has gained importance for sustainable renewable energy fuel needs. The dark fermentation (DF) process for biohydrogen production from organic wastes is environmentally friendly, energy-efficient, and cost-effective. This article explores the feasibility of transforming the DF process into a biorefinery system and discusses factors influencing its performance, as well as the need for downstream processes and hydrogen purification techniques. Furthermore, it highlights opportunities, challenges, and research directions for enhancing hydrogen yield and microbial metabolism, and analyzes the commercialization status and policy-level issues from the Indian perspective.
Article
Energy & Fuels
Mahboubeh Namdarimonfared, Hamid Zilouei, Hadiseh Tondro
Summary: This study assessed the feasibility of continuous hydrogen production in an anaerobic packed bed biofilm reactor (APBR) using paper mill effluent (PME) without any pretreatment or modification. The highest hydrogen concentration achieved was 41.5% at a hydraulic retention time (HRT) of 4 hours. The system showed potential for high hydrogen production rates and yields under different HRTs.
Article
Environmental Sciences
Shafiul Haque, Rajeev Singh, Dan Bahadur Pal, Hani Faidah, Sami S. Ashgar, Mohammed Y. Areeshi, Atiah H. Almalki, Bhawna Verma, Neha Srivastava, Vijai Kumar Gupta
Summary: This review evaluates and enhances the production of thermophilic biohydrogen using organic, cellulosic waste as a potential bioresource. The combination of suitable organic and cellulose-rich substrates, thermotolerant microbes, and stable enzymes can significantly improve biohydrogen production. Various factors that contribute to enhancing biohydrogen production are discussed, as well as the limitations of the thermophilic biohydrogen production strategy. The review also explores future prospects such as structural and functional microbiome analysis, genetic engineering for fermentation pathway modifications, and the application of nanotechnology to enhance thermophilic biohydrogen production.
Review
Biotechnology & Applied Microbiology
Eka Latiffah Nadia Dzulkarnain, Jemilatu Omuwa Audu, Wan Rosmiza Zana Wan Dagang, Mohd Firdaus Abdul-Wahab
Summary: Biohydrogen production through dark fermentation is an attractive solution for mitigating the effects of climate change. Understanding the microbial communities involved in the fermentation process and their interactions is crucial for process optimization. This review discusses the different systems and microbiomes used in dark fermentation, with a focus on palm oil mill effluent. The challenges and molecular biology tools used to study the microbial ecology associated with biohydrogen production are also summarized. The future outlook highlights the potential of microbiome-based technologies in maximizing biohydrogen production output.
BIORESOURCES AND BIOPROCESSING
(2022)
Article
Chemistry, Physical
K. Rambabu, G. Bharath, Fawzi Banat, Abdul Hai, Pau Loke Show, The Hong Phong Nguyen
Summary: Biohydrogen production from date-palm fruit wastes was studied using Enterobacter aerogenes by dark fermentation, with the addition of iron oxide nanoparticles and its nanocomposites enhancing hydrogen yield and productivity. Fe3O4/DSAC nanocomposites showed better hydrogen production enhancement than Fe3O4 NPs, with optimal dosage observed at 150 mg/L. Metabolites analysis indicated that hydrogen evolution followed the ethanol-acetate pathway, with Fe3O4/DSAC reducing the formation levels of longer chain co-metabolites. The nanocomposites exhibited significant application potential for biohydrogen production from date fruit wastes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Agricultural Engineering
A. Saravanan, P. Senthil Kumar, Kuan Shiong Khoo, Pau-Loke Show, C. Femina Carolin, C. Fetcia Jackulin, S. Jeevanantham, S. Karishma, Kuan-Yeow Show, Duu-Jong Lee, Jo-Shu Chang
Summary: Microbial fermentation of organic matter under anaerobic conditions is currently the prominent pathway for biohydrogen production, with agricultural residues and other organic wastes commonly used as feedstock due to their high organic content and biodegradability. Enhancing biohydrogen production can be achieved through optimizing operation conditions, adding essential nutrients, and nanoparticles.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Tugce Daglioglu, Tuba Ceren Ogut, Guven Ozdemir, Nuri Azbar
Summary: Carbon capture and utilization (CCU) is considered a potential technological solution for mitigating global greenhouse gas emissions and climate change. This study aimed to exploit the merits of cell immobilization for a stable hydrogenotrophic biomethanation process and compared the performance of two different immobilized bioreactors.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2021)
Article
Microbiology
Didem AKSU, Mamadou Malick DIALLO, Umut SAHAR, Tayyibe A. L. P. A. Y. UYANIKER, Guven OZDEMIR
Summary: In this study, the ability of Comamonas testosteroni strain 3a2 to effectively degrade para-toluic acid was investigated. The strain was able to degrade up to 1000 mg/L of para-toluic acid within 14 hours, with the highest degradation yield observed in the presence of yeast extract as a nitrogen source. Additionally, genes for various dioxygenases were detected in the genomic DNA of 3a2, indicating their role in the degradation process.
ARCHIVES OF MICROBIOLOGY
(2021)
Review
Biotechnology & Applied Microbiology
Lulu Yang, Ousman Bajinka, Pa Omar Jarju, Yurong Tan, Aji Mary Taal, Guven Ozdemir
Summary: Antibiotics, while being vital therapeutic drugs against bacterial pathogens, can have detrimental effects on gut microbial compositions and diversities, potentially leading to dysbiosis. Factors such as antibiotic class, dosage, route of administration, and others play a role in the varying effects observed, including destroying common phyla.
Article
Energy & Fuels
Simge Sertkaya, Nuri Azbar, Haris Nalakath Abubackar, Tugba Keskin Gundogdu
Summary: Syngas fermentation via the Wood-Ljungdahl pathway has the potential to convert gaseous pollutants into high-value commodities. This study identified the most effective trace elements and their concentrations for ethanol production by Clostridium ljungdahlii, demonstrating a significant improvement in ethanol production could be achieved by optimizing trace element concentrations. The effects of tungsten and copper on ethanol and biomass production were found to be the most significant, and the developed model could potentially reduce the cost of trace element solutions by 18-22%.
Article
Microbiology
Caner Vural, Mamadou M. Diallo, Guven Ozdemir
Summary: In this study, the degradation ability of Comamonas testosteroni strain PT9 on phthalic acid was characterized, showing complete degradation of a high concentration of phthalic acid within 6 hours. The study also investigated the stimulation of cell growth during degradation and screened for catalytic genes involved in the degradation pathways of phthalic acid isomers in strain PT9.
JOURNAL OF BASIC MICROBIOLOGY
(2022)
Article
Environmental Sciences
Caner Vural, Tugba Topbas, S. Tugce Daghoglu, Ozlem Dagli, Rahime Oral, Nalan Kabay, Guven Ozdemir
Summary: This study evaluated the microbiological quality and toxicity conditions of industrial effluents treated by advanced filtration technologies for agricultural irrigation. The results showed that the treated effluents met irrigation standards and did not exhibit acute toxic effects on freshwater organisms within 48 hours. Industrial effluents may serve as a significant water resource option for agricultural irrigation, benefiting both the environment and economy.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Environmental Sciences
Roma Agrahari, Busra Bayar, Haris Nalakath Abubackar, Balendu Shekher Giri, Eldon R. Rene, Radha Rani
Summary: Microbial fuel cells are emerging technologies that convert organic waste into electricity, offering potential solutions to energy crises and eco-friendly wastewater treatment. The performance of microbial fuel cells is greatly influenced by electrode properties and biocatalysts, making electrode modification crucial for improving power generation capacity.
Article
Green & Sustainable Science & Technology
Ramita Khanongnuch, Harris Nalakath Abubackar, Tugba Keskin, Mine Gungormusler, Gozde Duman, Ayushi Aggarwal, Shisir Kumar Behera, Lu Li, Busra Bayar, Eldon R. Rene
Summary: Air pollution is a significant global issue that has contributed to global warming and severe health and environmental impacts. This review compares different bioreactor configurations for waste gas treatment and discusses the potential of resource recovery. The study highlights the importance of composition, concentration, and flow rate in the performance of bioreactors.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Environmental Sciences
Sivabalan Kaniapan, Jagadeesh Pasupuleti, Kartikeyan Patma Nesan, Haris Nalakath Abubackar, Hadiza Aminu Umar, Temidayo Lekan Oladosu, Segun R. Bello, Eldon R. Rene
Summary: This review provides an assessment of the characterization, valorization approaches, and techno-economic analyses of rice residue, with a focus on its potential as a sustainable biomass option. The limitations of various pre-treatment methods and the phase structure of fuel utilization processes are also discussed.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Chemistry, Physical
Haris Nalakath Abubackar, Idris Biryol, Azize Ayol
Summary: Simultaneous pollutant removal and electricity production using microbial fuel cells is a promising technology for environmental sustainability. The performance of the process varies in real-world applications involving wastewater due to different sources, microorganisms, and electrodes. This study investigates the simultaneous treatment of baker's yeast industrial effluents and electricity generation in various MFCs using titanium and graphite electrodes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Deniz Demir Atli, Didem Aksu
Summary: A new benzimidazolium salt containing a 2,5-dimethylbenzyl substituent and six N-heterocyclic carbene (NHC) silver complexes were synthesized and characterized. The stability of the complexes in solution was investigated, and their antibacterial activities against Gram-positive and Gram-negative bacteria were evaluated. Among the complexes, 2b exhibited the highest antibacterial activity overall.
JOURNAL OF COORDINATION CHEMISTRY
(2023)
Article
Oncology
Betul Ilhan, Caner Vural, Ceyda Gurhan, Cansu Vural, Ali Veral, Petra Wilder-Smith, Guven Ozdemir, Pelin Guneri
Summary: The impact of Candida sp. on the development of oral cancer is still uncertain. This study used Real-Time PCR to detect the presence of five Candida sp. in oral biopsy tissue samples and found a significant increase in the presence of C. albicans and C. tropicalis in the mild/moderate dysplasia group.
Article
Biology
Didem Aksu, Caner Vural, Burcin Karabey, Guven Ozdemir
Summary: Terephthalic acid is widely used in polyester production, but can release toxic chemicals that need wastewater treatment. Biodegradation is an effective method for eco-friendly degradation of hydrocarbons, and certain bacterial strains have been found capable of degrading terephthalic acid effectively.
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
(2021)
