Article
Environmental Sciences
Soheil Valizadeh, Yasin Khani, Hoesuk Yim, Suhyeong Chai, Dongwon Chang, Abid Farooq, Pau-Loke Show, Byong-Hun Jeon, Moonis Ali Khan, Sang-Chul Jung, Young-Kwon Park
Summary: In this study, nickel-loaded perovskite oxides catalysts were synthesized and used in the catalytic steam gasification of swine manure to produce H2-rich syngas. The catalysts produced ultrafine nanoparticles with a uniform dispersion of Ni particles. The gas yield and H-2 production showed variation depending on the perovskite supports used, with the highest selectivity achieved by 10% Ni/CaTiO3. This study provides a solution for enhanced H-2 production through steam gasification, while also suggesting suitable supports to prevent Ni deactivation and coke formation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Agricultural Engineering
Gabriele Kuhn Dupont, Morgana Maciel Oliveira, Naiara Jacita Clerici, Carolina Grings Serafini, Daniel Joner Daroit, Bruno Munchen Wenzel
Summary: Anaerobic co-digestion is a promising biotechnological approach for waste management and renewable energy production. This study investigated methane production during batch co-digestion of swine manure and cassava bagasse. The highest methane yield was observed with a specific combination of total solids and cassava bagasse. However, methane production was inhibited at higher cassava bagasse additions. A novel proposed model explained the acid inhibition phenomenon and can be applied to similar systems for rational scale-up.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Multidisciplinary
Jaume Gasia, Teresa Lopez-Montero, Lola Vidal, Rodrigo Miro, Christophe Bengoa, Adriana H. Martinez
Summary: This study characterized an asphalt binder modified with a bio-binder obtained from swine manure through hydrothermal liquefaction. Results showed that the modified binder had lower consistency and greater thermal susceptibility. This research demonstrates the feasibility of using bio-binder as a modifier for asphalt.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Asad Javed, Ashraf Aly Hassan
Summary: This study analyzed the performance characteristics of a sequential flow batch reactor (SFBR) for biohydrogen production using co-cultures. The results showed that optimizing organic loading rate (OLR) and hydraulic retention time (HRT) can increase biohydrogen production. Additionally, the limitations of continuous stirred tank reactor (CSTR) handling need to be addressed.
Article
Energy & Fuels
Fidel Aguilar-Aguilar, Libertad Adaya, E. Ernestina Godoy-Lozano, L. A. Pantoja, Alexandre Soares dos Santos, Delfeena Eapen, P. J. Sebastian
Summary: This study evaluated the biogas production from anaerobic co-digestion of raw glycerol and swine manure, and investigated the microbial community interaction. The results showed that the highest biogas and methane yields were observed at certain concentrations of glycerol and swine manure. However, an excessive concentration of glycerol had inhibitory effects on the co-digestion process.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Editorial Material
Biotechnology & Applied Microbiology
Qi Zhou, Xiang Li, Shaohua Wu, Yuanyuan Zhong, Chunping Yang
Summary: This article discusses recent strategies for enhanced antibiotic removal from swine wastewater and offers insights on anaerobic digestion process design for improved antibiotic removal.
TRENDS IN BIOTECHNOLOGY
(2021)
Article
Energy & Fuels
Neng Tao, Meicai Xu, Xiu Wu, Zilei Pi, Chaohua Yu, Di Fang, Lixiang Zhou
Summary: The addition of Schwertmannite significantly improved methane production from swine manure loaded with Cu, Zn, and As, by stimulating the enrichment of methanogenic bacteria and increasing the content of extracellular polymeric substances to enhance substrate degradation and microbial aggregates formation.
Article
Thermodynamics
Naira Meky, Ahmed Elreedy, Mona G. Ibrahim, Manabu Fujii, Ahmed Tawfik
Summary: The study investigates the production of biohydrogen under acidic pH conditions using an intermittent dark-photo circular baffled reactor (IDP-CBR), which successfully achieved efficient hydrogen production from gelatin-based substrate. Adapted bacteria for this process were identified, and the IDP-CBR was found to outperform sequential configurations in maintaining medium pH and promoting light-dependent biohydrogen production.
Article
Agricultural Engineering
Yihui Wei, Zhengwu Liang, Yan Zhang
Summary: This study investigated the changes in physicochemical properties and bacterial community during swine manure composting using a new compost tray. The results showed a decrease in organic matter and moisture content, while total nitrogen, P2O5, K2O, and humic acids increased. Firmicutes, Actinobacteria, Proteobacteria, and Bacteroidetes were the dominant phyla during composting.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Katarzyna Bulkowska, Wioleta Mikucka, Tomasz Pokoj
Summary: This study investigated the effect of glycerine phase on the anaerobic digestion of cattle manure under mesophilic conditions. It was found that the addition of 10% glycerine phase significantly increased biogas production and methane content. Biogas formation was strongly correlated with the concentrations of ammonium nitrogen and volatile fatty acids, and the biogas production decreased over time.
Article
Chemistry, Physical
Jonni Guiller Ferreira Madeira, Elizabeth Mendes Oliveira, Marcus Val Springer, Hosana Lopes Cabral, Douglas Ferreira do Carmo Barbeito, Ana Paula Gomes Souza, Diego Antonio da Silva Moura, Angel Ramon Sanchez Delgado
Summary: The study evaluated the potential of producing hydrogen from swine manure biogas using steam reforming and water gas shift processes, demonstrating both ecological and economic viability. With an ecological efficiency of 93.73%, the production cost of hydrogen was only $0.14/kWh.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Agricultural Engineering
Zhiping Zhang, Xiaoni Fan, Yameng Li, Peng Jin, Yinggang Jiao, Fuke Ai, Haorui Zhang, Quanguo Zhang
Summary: The study evaluated the effect of microwave irradiation (MI) assisted with surfactant addition on corncob for biohydrogen production, showing significant increase in hydrogen yield and substrate conversion efficiency.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
B. Riano, B. Molinuevo-Salces, A. Parralejo, L. Royano, J. Gonzalez-Cortes, M. C. Garcia-Gonzalez
Summary: This study assesses the feasibility of using pepper waste and swine manure for methane production, finding that anaerobic co-digestion can increase methane yield and has positive economic indicators.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Energy & Fuels
Anh Ngoc T. Cao, Cham Q. Pham, Tung M. Nguyen, Thuan Van Tran, Pham T. T. Phuong, Dai-Viet N. Vo
Summary: Dysprosium (Dy) promoted Co/Al2O3 catalysts with different Dy loadings were synthesized and found to enhance the basicity and activity of the catalysts for methane dry reforming. The addition of Dy reduced the crystallite size of Co3O4, resulting in better metal dispersion and higher catalytic performance. The optimal Dy loading was found to be 0.3 wt%, achieving the highest CH4 conversion and H-2 and CO yields.
Article
Energy & Fuels
Zhiping Zhang, Xiaoni Fan, Shengnan Zhu, Peng Jin, Yinggang Jiao, Haorui Zhang, Quanguo Zhang, Yameng Li
Summary: This study evaluated the effects of different Tween series surfactants on hydrogen production in the photo-fermentative biohydrogen production (PFHP) process. It was found that Tween 80 was the most suitable surfactant, resulting in the highest cumulative hydrogen yield. Additionally, Tween 80 also significantly improved the growth and activity of photosynthetic bacteria.
Article
Engineering, Environmental
Archishman Bose, Richard O'Shea, Richen Lin, Jerry D. Murphy
Summary: This study aims to optimize the bubble column component in the photosynthetic biogas upgrading system, and provides optimization conditions for liquid inlet pH, alkalinity, superficial gas velocity, and liquid to gas flow rate. These results can improve the overall process performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Chen Deng, Richen Lin, Xihui Kang, Benteng Wu, David Wall, Jerry D. Murphy
Summary: Fermentative production of biohydrogen and volatile fatty acids from advanced feedstocks such as seaweed offers opportunities in the carbon-neutral bioeconomy. However, the current challenge lies in improving fermentation efficiency related to seaweed's rigid structure and inefficient metabolic electron transfer within microbial communities. This study evaluated the effects of carbonaceous additives on biohydrogen fermentation of different substrates and found that graphene and wood-derived biochar showed superior performance in enhancing fermentation efficiency.
Article
Agricultural Engineering
Kwame O. Donkor, Lalitha D. Gottumukkala, Richen Lin, Jerry D. Murphy
Summary: Anaerobic digestion is a technology that integrates into circular economy systems, reducing greenhouse gas emissions and producing renewable energy and biofertilizer. This article proposes an innovative integrated system using alkali pre-treatment, temperature-phased AD, and bioaugmentation techniques, aiming to increase methane production and lower costs.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Weida Zeng, Peirong Li, Yun Huang, Ao Xia, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: This study explored the essential principle of microalgal cell adhesion onto solid substrates from the perspective of the interaction energy between microalgal cells and solid substrates. The influence of surface properties between microalgal cells and solid substrates on interaction energies was discussed. The results showed that surface properties, including surface potential and surface free energy components, significantly affect the adhesion tendency of microalgal cells on different solid substrates.
Editorial Material
Biochemistry & Molecular Biology
Ao Xia, Huize Chen, Yun Huang, Xun Zhu, Qiang Liao
Summary: This forum article focuses on the formation and differences between biofilms and planktonic cells. It examines how intercellular mechanical interactions and physiological behaviors influence the morphology of biofilms and explores their characteristics through mathematical models.
TRENDS IN MICROBIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Ao Xia, Dong Feng, Yun Huang, Xianqing Zhu, Zhengxin Wang, Xun Zhu, Qiang Liao
Summary: This study investigated the effect of sustainable conductive material supplementation on the anaerobic digestion of furfural wastewater, and explored the potential mechanism of direct interspecies electron transfer (DIET) in furfural degradation as the sole substrate.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Xiaobo Guo, Ao Xia, Wuyuan Zhang, Feng Li, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Fatty acid photodecarboxylase of Chlorella variabilis NC64A (CvFAP) is a novel photoenzyme that shows potential in waste lipid treatment and sustainable aviation fuel production. However, CvFAP is susceptible to blue light. In this study, it was found that an anaerobic environment significantly improved the photostability of CvFAP. Decarboxylation of palmitic acid by CvFAP under anaerobic conditions resulted in a 44.7% increase in pentadecane yield compared to aerobic conditions. The residual activity of CvFAP after blue-light preillumination in an anaerobic environment was 80.4%, 258.7 times higher than that in an aerobic environment. The accumulation of superoxide radical and singlet oxygen in CvFAP under aerobic conditions led to its poor photostability. The anaerobic environment helped mitigate the production of these reactive species, thus improving the photostability of CvFAP.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Yun Huang, Weida Zeng, Peirong Li, Ao Xia, Qiang Liao, Xianqing Zhu, Xun Zhu
Summary: This study developed a nondependent and environmentally friendly thermoresponsive coating with temperature-switchable performance. The coating could enhance cell adhesion at the optimum growth temperature of microalgae and achieve efficient cell detachment at lower temperatures.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Agricultural Engineering
Feng Li, Ao Xia, Xiaobo Guo, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: In this study, CvFAP was immobilized in magnetic nickel ferrite (NiFe2O4) nanoparticles for easy recovery. The interaction between Ni2+ and histidine of CvFAP was clarified by detecting the shift of Ni 2p in electron binding energy. The coordination of NiFe2O4 and CvFAP resulted in an efficient affinity binding with a capacity of 98 mg/g carrier. Hydrocarbon fuel concentration of 3.7 mM was obtained by NiFe2O4@CvFAP-induced photoenzymatic decarboxylation. The high stability of CvFAP in terms of residual enzyme activity of 79.7% at pH 9.0 and that of 68% at organic solvent ratio of 60% was observed.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Nurul Syahirah Mat Aron, Kit Wayne Chew, Zengling Ma, Yang Tao, Malinee Sriariyanun, Inn Shi Tan, Cuong Nguyen Manh, Ao Xia, Tonni Agustiono Kurniawan, Pau Loke Show
Summary: The increase in global temperature requires action to reduce greenhouse gas emissions, particularly in the transportation sector, which contributes up to 25% of total emissions. Biofuels have emerged as a potential sustainable alternative to traditional fossil fuels. However, the production of biofuels raises concerns about food security. This study focuses on the extraction of lipids from microalgae using a liquid biphasic flotation system combined with a sugaring-out method, demonstrating high extraction efficiency and the potential of sugar solution as a cell disruption agent.
FERMENTATION-BASEL
(2023)
Article
Energy & Fuels
Jingmiao Zhang, Shuai Wu, Ao Xia, Dong Feng, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Anaerobic digestion (AD) technology is an effective method for biogas production and livestock waste treatment. This study investigated the impact of oxytetracycline (OTC) on the AD process and found that OTC significantly inhibited methane production, with methane yields decreasing by 58.6% and 73.3% in mesophilic and thermophilic ADs respectively at an initial OTC concentration of 400 mg/L. OTC can be degraded by the AD process with a removal efficiency above 90% at lower concentrations. Higher OTC concentrations resulted in lower bio-methane yield, energy conversion efficiency, and contaminant removal in both mesophilic and thermophilic ADs.
Article
Engineering, Environmental
Feng Li, Ao Xia, Xiaobo Guo, Wuyuan Zhang, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Fatty acid photodecarboxylase (CvFAP) found in Chlorella variabilis NC64A can efficiently catalyze the conversion of C16-C18 fatty acids into shortened hydrocarbons under visible light. In this study, a cascade system integrating lipase hydrolysis and CvFAP decarboxylation was demonstrated for the efficient production of hydrocarbon fuels from waste oils, achieving a high production rate of 18.4 mM/h and an optimal conversion of 61.2% with a residence time of 50 min.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Ao Xia, Xiaobo Guo, Yingxin Chai, Wuyuan Zhang, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: It was documented that green light was able to enhance the photostability of fatty acid photodecarboxylase from Chlorella variabilis (CvFAP). Compared to blue light, green light increased the yield of pentadecane by 27.6% and improved the residual activity of CvFAP by 5.9-fold after preillumination. Kinetics and thermodynamics studies showed that blue light facilitated a high activity of CvFAP.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Yun Huang, Weida Zeng, Peirong Li, Qiang Liao, Ao Xia, Xianqing Zhu, Xun Zhu
Summary: This study developed a temperature-responsive coating that enhances cell adhesion of microalgae at their optimum growth temperature and enables efficient cell detachment at lower temperatures. The coating showed excellent temperature-switchable performance and significantly increased cell adhesion density and detachment efficiency compared to conventional coatings.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ao Xia, Kai Lin, Tong Zhu, Yun Huang, Xianqing Zhu, Xun Zhu, Kaiyong Cai, Zidong Wei, Qiang Liao
Summary: Inspired by termite digestion, this study proposed a two-stage microreactor system loaded with enzymes for efficient hydrolysis of wheat straw. The results showed that the continuous action of cellulase and xylanase in this system significantly improved the enzymatic hydrolysis efficiency of lignocellulosic biomass and increased glucose production.
