Article
Energy & Fuels
Liana Vanyan, Adam Cenian, Karen Trchounian
Summary: This study investigates the potential of lignocellulosic waste as a source of eco-friendly and renewable energy generation through anaerobic digestion for biogas and biohydrogen production.
Article
Chemistry, Physical
Canto-Robertos Manuel, Quintal-Franco Carlos, Ponce-Caballero Carmen, Vega-De Lille Marisela, Moreno-Andrade Ivan
Summary: The dark fermentation process for biohydrogen production from food waste through fungal solid-state fermentation (SSF) was evaluated. The results showed that Aspergillus tubingensis was the best hydrolysis culture, and the hydrogen yield of food waste hydrolysate (FWH) at different substrate-inoculum ratios was lower than that of untreated food waste (RFW). The microbial community analysis revealed the presence of lactic-acid bacteria genera such as Latilactobacillus and Leuconostoc. The presence of actively growing bacteria during SSF could explain the lower hydrogen yield in the FWH treatment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Agricultural Engineering
Patrizio Tratzi, Doan Thanh Ta, Zhiping Zhang, Marco Torre, Francesca Battistelli, Eros Manzo, Valerio Paolini, Quanguo Zhang, Chenyeon Chu, Francesco Petracchini
Summary: This study reviews recent advances in using additives to enhance biomethane and biohydrogen production, focusing on their effects on microbial growth and key parameters. NH3's inhibition effect and impact on digestate quality are particularly highlighted.
BIORESOURCE TECHNOLOGY
(2022)
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)
Article
Agricultural Engineering
Ju-Hyeong Jung, Young-Bo Sim, Jeun Ko, So Young Park, Gi-Beom Kim, Sang-Hyoun Kim
Summary: This study investigated a two-stage dynamic membrane bioreactor system for biohydrogen and biomethane production from food waste. The system achieved high rates of hydrogen and methane production from particulate feedstock, recovering up to 79% of the chemical energy in the waste as renewable energy. The study also identified optimal operational conditions and dominant microbial populations.
BIORESOURCE TECHNOLOGY
(2022)
Review
Environmental Sciences
Velusamy Mozhiarasi, Thillai Sivakumar Natarajan, Kondusamy Dhamodharan
Summary: In recent years, there has been a growing demand for high-quality biofuels from renewable sources as a means to achieve a clean environment and meet future energy needs by replacing depleting fossil fuels. Research interest has focused on biohythane production from wastes, as it offers superior fuel characteristics compared to conventional biofuels such as biogas. This systematic review aims to promote research and explore the potential of biohythane production by examining various factors such as production pathways, substrate/microbial consortium suitability, reactor design, and process/operational factors. The study also highlights the importance of reactor configuration and addresses technical challenges, product optimization, scale-up, and policy considerations for building a hydrogen-based society.
ENVIRONMENTAL RESEARCH
(2023)
Article
Agricultural Engineering
Seyedeh Azadeh Alavi-Borazjani, Luis Antonio da Cruz Tarelho, Maria Isabel Capela
Summary: This study investigated the effect of adding ash from combustion of different biomass types on H2 and CH4 production from organic solid waste. Results showed that specific concentrations could significantly increase H2 production rate and CH4 yield in the biohythane production process.
BIOMASS & BIOENERGY
(2022)
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
Srijoni Banerjee, Dipankar Ghosh, Chetan Pandit, Sagnik Saha, Anwesha Mohapatra, Soumya Pandit, Minaxi Sharma, Kandi Sridhar, Baskaran Stephen Inbaraj, Ram Prasad
Summary: Microalgae have shown great potential as a prominent source for biomass production in the production of biofuels and bioenergy. They are capable of producing high yields of biomass and fuel while occupying smaller land footprints. Additionally, microalgae can be utilized in wastewater treatment and the generation of bioelectricity.
Article
Environmental Sciences
Chiu-Yue Lin, Chyi-How Lay, Kit Wayne Chew, Saifuddin Nomanbhay, Rui-Lin Gu, Shen-Ho Chang, Gopalakrishnan Kumar, Pau Loke Show
Summary: A mobile bioenergy generation station was constructed based on high-efficiency hydrogenesis & methanogenesis technology. Shortening hydraulic retention time was found to be a promising method to improve biogas quality and energy efficiency. This mobile bioenergy system showed commercial potential and economic benefit.
Review
Energy & Fuels
Yiru Zhao, Nathalie Bourgougnon, Jean-Louis Lanoiselle, Thomas Lendormi
Summary: Seaweeds are a promising and sustainable feedstock for biofuel production due to their high availability and easy fermentable composition. This comprehensive review examines the biochemical composition of seaweeds and their potential for biomethane and biohydrogen production, as well as the effects of common pretreatment methods. Satisfactory yields comparable to terrestrial biomass can be obtained, and a potential energy production scheme using seaweed from the Caribbean Islands is proposed.
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
Chemistry, Physical
Tan-Trung Nguyen, Chen-Yeon Chu, Chung-Mao Ou
Summary: This study examines the continuous co-digestion of swine manure and pineapple waste using two-stage anaerobic reactors, focusing on hydraulic retention time (HRT) and substrate heat pre-treatment. The results show that a complete anaerobic co-digestion process can achieve optimal energy production and COD removal efficiency, while the two-stage co-digestion process significantly improves COD removal efficiency, hydrogen production rate, and net energy gains, thereby reducing fermentation time.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Heshan Zheng, Yu Wang, Xiaochi Feng, Shuo Li, Yoong Kit Leong, Jo-Shu Chang
Summary: This paper reviews the recent progress in bio-hydrogen production from straw, focusing on the advancements in pretreatment and hydrolysis technologies. Various pretreatment procedures have been developed to enhance the availability of straw substrate for hydrogen-producing bacteria, enabling large-scale bio-hydrogen production. The challenges, prospects, and future directions of straw-based biohydrogen production are also discussed.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Energy & Fuels
Gayathri Priya Iragavarapu, Syed Shahed Imam, Omprakash Sarkar, Srinivasula Venkata Mohan, Young-Cheol Chang, Motakatla Venkateswar Reddy, Sang-Hyoun Kim, Naresh Kumar Amradi
Summary: To meet the growing energy needs and address the depletion of fossil resources, there is a need to shift from fossil-based feedstocks to organic waste for a competitive, resource-efficient, and low-carbon sustainable economy. Chemical routes for fuel and chemical production have low production costs, but the use of toxic and expensive catalysts make the process unsustainable. Utilizing renewable resources for bioprocessing with a multi-product approach improves resource utilization and contributes to the green economy.
Article
Chemistry, Physical
Tan-Trung Nguyen, Chen-Yeon Chu, Chung-Mao Ou
Summary: This study examines the continuous co-digestion of swine manure and pineapple waste using two-stage anaerobic reactors, focusing on hydraulic retention time (HRT) and substrate heat pre-treatment. The results show that a complete anaerobic co-digestion process can achieve optimal energy production and COD removal efficiency, while the two-stage co-digestion process significantly improves COD removal efficiency, hydrogen production rate, and net energy gains, thereby reducing fermentation time.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Van Giang Tran, Chen-Yeon Chu, Yuwalee Unpaprom, Rameshprabu Ramaraj, Tsung-Hsien Chen
Summary: This study investigated the effect of substrate concentration and hydraulic retention time on hydrogen production in a continuous anaerobic bioreactor using unhydrolyzed common reed. The optimal conditions for maximum hydrogen yield were found to be a substrate concentration of 50 g COD/L and a HRT of 12 hours.
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)
Article
Environmental Sciences
Shen-Shih Chiang, Le-Shu Chen, Chen-Yeon Chu
Summary: Hypertension is a common global illness, and precise blood pressure control can reduce complications. Camellia oleifera Abel and Camellia sinensis (Oolong tea) have antibacterial, antioxidant, and anti-inflammatory properties that can reduce oxidative stress and vascular remodeling, lowering blood pressure and decreasing the risk of cardiovascular disease.
Article
Energy & Fuels
Worapong Wongarmat, Alissara Reungsang, Sureewan Sittijunda, Chen-Yeon Chu
Summary: Optimizing the proportions of biogas effluent, sugarcane filter cake, and anaerobic sludge can achieve high methane yield without the need for inoculum. Evaluation of hydraulic retention time using a first-order kinetic model and semi-continuous fermentation in a continuous stirred tank reactor confirmed the impact of optimum proportions and HRT on methane production rate.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Chemical
Adriano Palma, Chen-Yeon Chu, Francesco Petracchini, Mei-Ling Yeh, Cheng-Ting Wu, Yu-Chen Lai
Summary: Perennial woody crops can positively impact carbon balance by absorbing and storing carbon for several years; models with remote sensing data can help in monitoring greenhouse gas fluxes; a study compared carbon uptake of different cultivars in Taiwan and Italy using physiological process-based models.
Article
Engineering, Environmental
Alicia Amelia Elizabeth Sinsuw, Cynthia Erlita Wuisang, Chen-Yeon Chu
Summary: The study found that implementing the Symnergy model with a biogas production pilot plant in a rural community can enhance self-sustainability and have positive environmental and social impacts. Results showed that utilizing cow biowaste and wastewater from a slaughterhouse can lead to cost savings and additional income for villagers, while also benefiting the community through biofertilizer production and increased profits from selling chili.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Kuan-Tseng Lee, Chen-Yeon Chu, Shen-Shih Chiang
Summary: The study revealed that LCP fruit powder has anti-dementia effects on A beta-induced Alzheimer's mice, improving learning and memory abilities while reducing oxidative stress, brain atrophy, and A beta plaque deposition.
Article
Environmental Sciences
Chen-Yeon Chu, Jin-Long Zheng, Tsung-Hsien Chen, Prakash Bhuyar
Summary: The study found that using an expired soft drink as a substrate in a packed-filter bioreactor, with a substrate concentration of 20 g total sugar/L and the packed filter placed at the half-height position of the reactor, resulted in optimal hydrogen production rate and yield. The predominant bacterial communities in this setup were Clostridium sp., Clostridium tyrobutyricum, and Bifidobacterium crudilactis. Furthermore, the packed-filter bioreactor demonstrated stable hydrogen production in high-strength organic effluent.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Chemistry, Physical
Doan-Thanh Ta, Chiu-Yue Lin, Thi-Minh-Ngoc Ta, Chen-Yeon Chu
Summary: A novel single-reactor system has been developed for co-production of H2 and CH4. The study shows that a short pH shock can regulate the H2/CH4 composition without significantly affecting biogas yield and COD removal.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Ming-Yan Shen, Chen-Yeon Chu, Chayanon Sawatdeenarunat, Prakash Bhuyar
Summary: The synthesis of polyhydroxyalkanoates (PHA) using mixed microbial cultures (MMC) was studied in three stages, and it was found that adding pyruvate can increase the yield of PHA, potentially contributing to commercial activities in treating high organic wastewater.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Physical
Ming-Yan Shen, Marco Torre, Chen-Yeon Chu, Patrizio Tratzi, Monica Carnevale, Francesco Gallucci, Valerio Paolini, Francesco Petracchini
Summary: This study investigates the effects of different ratios of food waste to seed digestate and pH values on biohydrogen production in an anaerobic reactor. The results show that cattle manure and chicken manure in the seed digestate can adapt to high concentrations of COD in food waste and increase biohydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Agricultural Engineering
Ponnambalam Sabarikirishwaran, Ming-Yan Shen, Rameshprabu Ramaraj, Yuwalee Unpaprom, Hsuan-Chen Wu, Chen-Yeon Chu
Summary: This study aimed to produce biomethane from E. coli fermenter effluent through anaerobic fermentation using wastewater treatment sludge, and optimized various factors affecting the anaerobic digestion process. The results showed that adjusting the pH to 6.5 significantly enhanced the inherent methanogenic homeostasis and increased biomethane production by 22%. 16S rRNA analysis and kinetic study were conducted to analyze microbial communities and model cumulative biomethane production.
BIOMASS & BIOENERGY
(2023)
Article
Agricultural Engineering
Jayen Aris Kriswantoro, Chen-Yeon Chu, Ting-Rui Chang, Hao-Jen Pai, Chih-Kai Chang, Yi-Pang Chiu
Summary: The aim of this study was to investigate the impact of thermal alkaline pretreatment and zinc acetate-catalyzed methanolysis on biogas production from bioplastic in anaerobic digestion. The pretreated bioplastic with MtOH-ZnOAc exhibited efficient solubilization and generated 205.7 ± 6.9 mL/g CODadded, surpassing thermal alkaline degradation. Mesophilic conditions resulted in over 79% higher biogas production compared to thermophilic conditions with pretreated bioplastic diluted by 30 times. The kinetic study demonstrated a correlation between cumulative biogas, production rate, and lag phase in both mono- and two-stage systems, with the two-stage system surpassing the mono-stage system in terms of biogas production.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Chen-Yeon Chu, Duc-Binh Nguyen, Vinh-Phuc Ha, Vinh-Dat Vuong, Yi-Hsin Chien, Thang Van Le
Summary: Electrophoretic deposition (EPD) is a potential process for fabricating high porosity thin films or complex surface coatings in perovskite photovoltaics. In this study, electrostatic simulation is used to optimize the EPD cell design for cathodic EPD of functionalized multiwalled carbon nanotubes (f-MWCNTs). The results of scanning electron microscopy (SEM) and atomic force microscopy (AFM) evaluate the similarity between the thin film structure and electric field simulation, revealing a higher roughness at the edge of the thin film compared to the center position. The study also demonstrates the positive charging and deposition of f-MWCNTs with low defect density and the adsorption/electrostatic attraction of aluminum atoms to interlayer defect positions of f-MWCNTs.