Article
Energy & Fuels
Zulfiqar Ahmad Bhatti, Mahnoor Syed, Farhana Maqbool, Yang-Guo Zhao, Xu Ying, Muhammad Faisal Siddiqui, Qaisar Mahmood
Summary: This study investigated the potential use of different concentrations of molasses wastewater in microbial fuel cells (MFCs) for bioelectricity production and reduction of chemical oxygen demand (COD). The results showed that an MFC with a molasses concentration of 5 g L-1 exhibited more efficient power generation compared to acetate, while the COD removal efficiency was similar for both molasses and acetate.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Environmental Sciences
Xiao Li, Yaobin Lu, Haiping Luo, Guangli Liu, Cesar Torres, Renduo Zhang
Summary: This study investigated the pH effect on bacterial community stratification in the cathodic biofilm of a microbial fuel cell (MFC) under alkaline conditions. The results showed significant changes in the composition and relative abundance of bacterial community with different pH values, and an increase in maximum power density in the MFC with higher pH values. The study is valuable for developing new catalysts and cathodes in MFCs.
Article
Environmental Sciences
Qiu-Ren Pan, Peng-Yang Jiang, Bi-Lin Lai, Yun-Bing Qian, Li-Juan Huang, Xiao-Xin Liu, Nan Li, Zhao-Qing Liu
Summary: The study investigates the exploration of low-cost, long-term stable, and highly electrochemically active cathode catalysts for microbial fuel cells (MFC). A series of 3D hierarchical porous Co-N-C materials are synthesized and designed, showing excellent performance in terms of oxygen reduction reaction (ORR) and durability. The study also reveals the influence of different ORR activity cathode catalysts on the types and abundance of anode microorganisms.
Article
Agricultural Engineering
Jianqi Yuan, Haiguang Yuan, Shaobin Huang, Lijie Liu, Feichao Fu, Yongqing Zhang, Fangqin Cheng, Jianfeng Li
Summary: This study compared the effects and bacterial community structure of single-chamber microbial fuel cells (MFCs) in treating NH4+-containing wastewater with different COD/N ratios. Results showed that MFCs with low COD/N had better NH4+-N removal and electrochemical performance, while MFCs with high COD/N had better removal stability and COD removal effect. High-throughput sequencing revealed that the anode community structure was weakly affected by the COD/N ratio, with Geobacter dominating, but the cathode community was complex and susceptible to the COD/N ratio. pH profiling in the cathode biofilm and FISH were used to confirm the distribution trends of nitrifiers and denitrifiers.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Rim Werheni Ammeri, Wafa Hassen, Yassine Hidri, Giuseppe Di Rauso Simeone, Abdennaceur Hassen
Summary: This study demonstrated the efficiency of bioaugmentation-phytoremediation using Typha angustifolia in removing PCP from wastewater. Significant PCP removal by indigenous bacteria and a decrease in chloride content were observed, along with an increase in bacterial numbers. Novel methods and analyses were employed to evaluate the phytoremediation process, showing positive effects on intrinsic microorganisms and promoting pollutant remediation.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2022)
Article
Energy & Fuels
Fatemeh Oveisi, Narges Fallah, Bahram Nasernejad
Summary: This study demonstrated the efficient treatment of styrene-contaminated wastewater and bioelectricity production using MFC system. Adapted activated sludge showed higher degradation rate and power generation in the MFC, achieving 100% styrene removal.
Article
Engineering, Environmental
Tianyu Zhao, Heping Hu, Alex T. Chow, Pengfei Chen, Yanling Wang, Xinyue Xu, Zerui Gong, Shaobin Huang
Summary: This study constructed a sediment microbial fuel cell system coupled with Vallisneria natans (P-SMFC) to remove surface water and sediment pollutants, generate electricity, and reduce the demand for additional oxygen supply. P-SMFC demonstrated excellent pollutant removal and power generation performance under different pollution loads.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Shu-Hui Liu, Wun-Jie Huang, Chi-Wen Lin, Ting-Jun Zhu
Summary: The study developed a single-medium, membraneless microbial fuel cell to investigate Cu(II) migration in sediment, showing that a biocathode can enhance Cu(II) electromigration efficiency, and optimizing cathode conditions can improve Cu(II) removal efficiency. Additionally, dominant bacteria phyla capable of degrading organic matter, generating electricity, and tolerating Cu(II) were discovered in the system.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Agricultural Engineering
Sha Long, Lin Zhao, Jinchen Chen, Juhee Kim, Ching-Hua Huang, Spyros G. Pavlostathis
Summary: The transformation of tetracycline in microbial fuel cells was mainly due to adsorption, with implications for the inhibition of biofilm activity and changes in microbial populations. The MFC-Fenton cathode proved to be an efficient and energy-saving process for tetracycline removal compared to anodic bio-oxidation.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Bao Yu, Liu Feng, Yali He, Lei Yang, Yu Xun
Summary: The study found that the SMFC with graphite felt as the anode performed well in terms of bioelectricity output and pollutant removal, which can be attributed to the conductivity of the material. The surface structure of the anode material also influences the internal resistance of the battery and the abundance of microbial communities.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Huimin Wang, Xiaoyan Qi, Siyu Chen, Xia Wang
Summary: In this study, breeding wastewater was efficiently treated using an electroactive microbial community screened from the native microorganisms of the wastewater in microbial fuel cells. The results showed good power generation and high pollutants removal efficiency. The morphology characterization demonstrated the formation of a thick biofilm by the screened electroactive microbial community. Microbial community analysis revealed an increase in microorganisms associated with electricity generation and pollutant degradation, while pathogenic microorganisms were greatly decreased. These findings suggest that the MFC constructed using the screened electroactive microbial community can be a sustainable method for breeding wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Fida Hussain, Nabil Al-Zaqri, Atthirah Binti Muhammad Adnan, M. Hazwan Hussin, Oh Sang-Eun, Khalid Umar
Summary: Bakery waste as an organic substrate in microbial fuel cells shows good stability and high removal efficiency, indicating its potential as an alternative energy source. The study provides insights into the mechanism of bakery waste oxidation and discusses future possibilities in this field.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Environmental Sciences
Haonan Wang, Peng Chen, Shixuan Zhang, Jiwei Jiang, Tao Hua, Fengxiang Li
Summary: The study demonstrated that pyrene can be effectively degraded in single-chamber air-cathode microbial fuel cells (MFCs), but the addition of pyrene reduces the electrical performance of MFCs and suppresses power output. Additionally, the proportion of Alcaligenes and Stenotrophomonas in the anodic microbial community increases with the increase in pyrene concentration, potentially explaining the high degradation rate of pyrene.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Yue Shi, Kaiguo Huang, Xinxiang Pan, Guobing Liu, Yuhang Cai, Asad A. Zaidi, Kun Zhang
Summary: The study found that the microbial electrolysis cell-based electro-fermentation system (MEC-EFS) showed higher biodegradation rate and lipid extraction efficiency when treating microalgae, along with better electrochemical performance. Both MEC-EFS and microbial fuel cell-based EFS (MFC-EFS) also exhibited higher saturated fatty acid ratios compared to conventional fermentation system (CFS).
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Houyun Yang, Jian Chen, Li Yu, Weihua Li, Xianhuai Huang, Qian Qin, Shuguang Zhu
Summary: Constructed wetland-microbial fuel cell system (CW-MFC) is an effective technology for domestic wastewater treatment and bioelectricity generation. This study investigated the influence of influent COD concentration, HRT, and external resistance on system performance and found the optimal operating conditions. The results showed that CW-MFC outperformed traditional CW system in terms of pollutant removal efficiency and bioelectricity production. The analysis of microbial community indicated that the enrichment of electroactive bacteria and denitrifying bacteria might contribute to the performance improvement of CW-MFC system.
ENVIRONMENTAL RESEARCH
(2022)
Article
Biotechnology & Applied Microbiology
Yukuan Duan, Lifen Liu
Summary: The Z-scheme ternary heterojunction of g-C3N4 and BiOI co-modified with Bi2WO6 (BCB) was prepared to enhance photocatalyst activity. The optimized doping ratios of 3 wt% BiOI/10 wt% g-C3N4/Bi2WO6 exhibited excellent catalytic performance in degrading rhodamine B (RhB) under visible light irradiation, achieving almost complete degradation in 30 minutes and a high reaction kinetic constant of 0.245 min(-1). The catalyst showed good stability and removal effect for different concentrations of tetracycline (TC), indicating its potential application in pollution control.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Nuclear Science & Technology
Jawaria Ahad, Talha Rizwan, Amjad Farooq, Khalid Waheed, Masroor Ahmad, Kamran Rasheed Qureshi, Waseem Siddique, Naseem Irfan
Summary: The filtered containment system is a passive safety system used to control over-pressurization of containment in design-based accidents by venting a high-pressure mixture of air, steam, and radioactive gases, such as iodine, through a scrubbing system. A lab-scale facility was developed to study iodine removal using a venturi scrubber, simulating accidental scenarios. A modified mathematical model was proposed to improve the efficiency of iodine removal by considering important parameters that were not previously included. Experimental results showed that removal efficiency increased with liquid level height and gas flow rate up to an optimum point before decreasing. The maximum removal efficiency achieved was 99.8%.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Lanlan Liang, Peike Cao, Xin Qin, Shuai Wu, Haokun Bai, Shuo Chen, Hongtao Yu, Yan Su, Xie Quan
Summary: Developing efficient and interference-tolerant catalysts for practical use in catalytic ozonation process is challenging. In this study, a surface Vo-rich catalyst was prepared by doping Co into zinc ferrite spinel, showing efficient mineralization of recalcitrant organic pollutants. The removal of contaminants was mainly attributed to nonradical-based oxygen species, *O, rather than traditional hydroxyl radicals, •OH. The Vo-driven nonradical catalysis exhibited high resistance to coexisting ions and excellent performance in actual wastewater treatment, providing a novel strategy for efficient mineralization of pollutants in complicated water matrices.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Haiwei Yang, Lvzhu Cheng, Qiliang Yang, Amjad Farooq, Lili Ying, Peng Wang, Zongqian Wang
Summary: The integration of natural textiles and MXene has great potential for the development of wearable thermal management materials. However, the susceptibility of MXene to oxidation and the weak interaction between MXene and fibers pose challenges in fabricating MXene-decorated textiles with durable and stable thermal management performance. In this study, a novel surface modification strategy using natural sericin was proposed to protect MXene and enhance its stability. The fabricated MXene-coated silk fabrics not only demonstrated excellent thermal management performance, but also possessed superior breathability, laundry durability, and flame retardancy.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Yuting Liu, Changfei Gao, Lifen Liu, Hongbo Wang
Summary: Abuse of antiviral drugs in natural water is a significant concern. In this study, a novel CuMn2O4@WO3/g-C3N4 ((CMNW)CN) cathode electrode was developed for the photoelectrocatalytic degradation of acyclovir in a Photo-Bio-Electro-Fenton (PBEF) system. The (CMNW)CN electrode exhibited excellent redox performance and efficient electron transfer efficiency. The study identified three degradation pathways and eight degradation intermediates, and confirmed the high degradation efficiency of acyclovir using the (CMNW)CN electrode within 30 minutes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xueyang Zhao, Qin Geng, Fan Dong, Kun Zhao, Shuo Chen, Hongtao Yu, Xie Quan
Summary: Electrochemically reducing nitrate to ammonia is an efficient method to address nitrate pollution. However, controlling the selectivity and kinetics of ammonia production remains a challenge. In this study, a single-atom Cu catalyst was developed for selective and efficient nitrate reduction, achieving high Faradic efficiency and ammonia selectivity. DFT calculations revealed the underlying mechanism, demonstrating the superiority of the single-atom Cu catalyst over Cu nanoparticle catalyst. This research provides a strategy for designing electrocatalysts for efficient and selective ammonia production via nitrate reduction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Jing Wang, Ling Li, Baihui Chi, Jiajia Shan, Xianliang Yi, Yang Liu, Hao Zhou
Summary: The use of disinfectants made from quaternary ammonium compounds (QACs) has increased significantly since the outbreak of SARS-CoV-2. However, the effect of QACs on wastewater treatment performance remains unclear. This study investigated the effect of a commonly used QAC, benzyl dodecyl dimethyl ammonium bromide (BDAB), on nutrient removal in a moving-bed biofilm reactor (MBBR). The results showed that high BDAB concentrations significantly reduced ammonia removal efficiency and nitrate production rate constants, but the inhibition could be partially recovered by lowering the BDAB concentration. Metagenomic sequencing revealed different functional genera in the control and BDAB-added reactors, and analysis of functional genes suggested potential ecological risks associated with BDAB introduction in WWTPs.
Article
Engineering, Environmental
Xin Qin, Peike Cao, Xie Quan, Kun Zhao, Shuo Chen, Hongtao Yu, Yan Su
Summary: In this study, a dual-atomic-site catalyst (CoFe DAC) was proposed to cooperatively catalyze middotOH electrogeneration. The CoFe DAC showed higher middotOH production rate compared to single-site catalysts, and it was more energy-efficient for coking wastewater treatment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Textiles
Mengmeng Li, Qiuyu Xu, Wei Jiang, Amjad Farooq, Yirui Qi, Lifang Liu
Summary: In this study, Fe3O4 nanoparticles and graphene oxide (GO) are combined to form Fe3O4@reduced graphene oxide (rGO) composites. Cellulose nanofiber (CNF) and l-ascorbic acid are then added, and the mixture is freeze-dried to produce Fe3O4@rGO/CNF foams. The resulting foams exhibit improved electrical conductivity and magnetism, making them suitable for electromagnetic interference (EMI) shielding materials. The optimized foam shows an EMI shielding effectiveness value of approximately 23 dB in the X-band, thanks to the porous structure and composition of Fe3O4@rGO/CNF foams. This research provides a reference for the design and fabrication of novel EMI shielding materials.
FIBERS AND POLYMERS
(2023)
Article
Engineering, Chemical
Qi Song, Yihua Li, Wancen Xie, Changfei Gao, Lifen Liu, Baicang Liu
Summary: In this study, an electro-Fenton coupled membrane filtration system was constructed to efficiently degrade micromolecular carbamazepine (CBZ) in aquatic environment. The system involved a composite cathode membrane that filtered out humic acid while allowing CBZ to pass through, followed by an EF process using a magnetic Fe@PC catalyst to degrade CBZ with high efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Mengdie Hou, Mengjun Xu, Jiangtao Xu, Jiafeng Lu, Yi An, Liangjin Huang, Xianglong Zeng, Fufei Pang, Jun Li, Lilin Yi
Summary: We demonstrate the first simulation and experimental realization of decomposing cylindrical vector (CV) and orbital angular momentum (OAM) modes by reconstructing multi-view images of the projected intensity distribution. The use of deep learning-based stochastic parallel gradient descent (SPGD) algorithm allows for the retrieval of modal coefficients and optical field distributions with high efficiency and accuracy. The generated donut modes are experimentally decomposed into CV and OAM modes, with a purity of 99.5% for CV modes. Rapid switching of vortex modes is achieved by electrically driving the polarization controller. Our findings provide a convenient way to characterize and deepen the understanding of CV or OAM modes, with potential applications in information coding and quantum computation.
Article
Chemistry, Physical
Jun Wang, Jingjing Zhan, Hao Zhou, Xianliang Yi, Yang Liu
Summary: Tourmaline-LiCoO2 composites were synthesized and found to have high adsorption capacity for Pb2+. The optimal conditions for Pb2+ adsorption were determined to be 0.375 g tourmaline addition and sintering at 800 degrees C. The adsorption behavior of TM0.375LCO800 was influenced by solution pH and foreign cations, with Cu2+ and Zn2+ having the largest effect. XRD, ATR, SEM, TEM, UV-vis DRS, and XPS analysis revealed the physicochemical properties of the composites. The high-temperature transformation of tourmaline and LiCoO2 promoted Pb2+ removal. This study highlights the potential of tourmaline-LiCoO2 composites for heavy metal ion removal and provides scientific insights for future environmental applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Qian Zhang, Lifen Liu
Summary: Integrating filtration membrane cathode and packed granular carbon cathode in an up-flow bio-electrochemical reactor can maintain both higher-level treatment capacity and electricity generation in the microbial fuel cell (MFC). Scale-ups via unit stacking (U-S) or size-enlarged reactor/electrode (SE-RE) were tested on a Nylon wastewater, achieving high removal efficiencies of nitrogen compounds and COD, as well as significant power generation. Adjusting influent C/N with urea enhanced the COD removal and reduced membrane fouling, making U-S scale-up with urea dosage feasible for practical application in MFC treating Nylon wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Yanping Shi, Tao Liu, Xie Quan, Shuo Chen, Hongtao Yu, Wuzhe Quan
Summary: A municipal WWTP upgraded its process to A2O-IFFAS by filling ZVI-modified biofilm carriers into anoxic bioreactors and clinoptilolite-modified biofilm carriers into aerobic bioreactors. The upgraded process achieved high nitrogen removal efficiency and met the discharge standard requirements.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Teng Li, Xuefeng Ren, Lifen Liu
Summary: This article summarizes and investigates the progress in the research of single-atom catalysts (SACs) in environmental applications and energy field. SACs have shown great potential in advanced oxidation processes, photocatalysis and photo-electrochemical systems, as well as fuel cells, with their performance depending on the metal element, support substrate, and coordination status shaped in preparation.
INORGANICA CHIMICA ACTA
(2024)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
