Article
Engineering, Environmental
Yue Zhang, Jian Sun, Ziwei Guo, Xinqi Zheng, Pengran Guo, Jingwei Xu, Yongqian Lei
Summary: In this study, a novel Ferreous metal-organic frameworks (Fe-MOF) heterogeneous catalyst was successfully synthesized and applied to the degradation of Cu-EDTA, which improved the degradation efficiency by enhancing the catalyst performance, providing an effective and sustainable approach for the degradation of refractory organic pollutants.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ling Tan, Xiaoyan Wang, Shaoke Wang, Xiaorui Qin, Linfeng Xiao, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: The degradation performance of Fe-Nb-Cu-Si-B amorphous alloy powders for methyl orange in an ultrasonic Fenton-like process was studied. The effects of pH, H2O2, catalyst dosage, temperature, dye concentration, and ultrasound on the degradation efficiency were investigated. The results show that the amorphous alloy has potential application in the degradation of azo dyes.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Chemical
Wenjiao Sang, Wei Lu, Longjie Mei, Danni Jia, Cheng Cao, Qiang Li, Chen Wang, Cheng Zhan, Min Li
Summary: The study explored the coupling technique of introducing an oxidant into dielectric barrier discharge plasma to enhance the degradation of Orange G in aqueous solutions. Experiments showed that the addition of an appropriate amount of oxidant had a significant synergistic effect on improving the degradation efficiency and kinetics of Orange G. Results indicated that adding Fe(VI) showed higher degradation efficiency and energy yield in promoting Orange G degradation, while the effect of adding PS was relatively weak.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yukun Li, Shujian Li, Cong Chao, Sen Yao, Dan Zhang, Qishi Chen
Summary: This study investigated the degradation of methyl orange using visible-light-driven photocatalytic activation of persulfate. A macro-aerogel g-C3N4-doped graphene aerogel composite with a stratified structure was fabricated and applied as a recoverable heterogeneous catalyst for the activation of persulfate under visible light irradiation. The catalytic efficiency of the composite was enhanced significantly after modification with g-C3N4, and the GCN-3/VL/PDS system showed promising potential for practical wastewater purification due to its flexibility and recyclability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Jinpeng Wang, Ming Zhang, Runjuan Zhou, Jiyuan Li, Wei Zhao, Wenyuan Chen
Summary: The addition of trace Cu(II) enhances the degradation efficiency of Fe(II)/HA/PS system and broadens the applicable pH range. Optimal dosages of Fe(II), Cu(II), and PS promote the degradation of Orange II, while excessive or inadequate HA dosage is not conducive. Scavenger experiments indicate that SO4 center dot- is the main reactive oxygen species (ROS) in the system.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Hai-long Li, Zheng-wang Zhu, Songtao Li, Shuai Bao, Chun-ming Liu, Shiming Zhang, Hai-feng Zhang
Summary: Fe-based metallic glasses can efficiently degrade acid orange II by activating persulfate, showing promising potential for wastewater treatment. The experimental results demonstrate a two-step degradation mechanism and the effects of experimental parameters on the decolorization efficiency. This study provides new insights into the application of Fe-based metallic glasses as catalysts in wastewater treatment.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
Nnamdi Nwahara, Omotayo Adeniyi, Philani Mashazi, Tebello Nyokong
Summary: A visible light-responsive TiO2 - graphene oxide nanosheets - Zn phthalocyanine (TiO2@GONS@ZnPc) ternary structure was successfully fabricated for the photoelectrochemical degradation of Orange G azo dye. Characterization using various spectroscopic and microscopic techniques revealed that the surface hybrid heterojunction promotes charge separation and electron migration, leading to enhanced degradation efficiency. The study also demonstrated a non-radical activation route for persulfate using electron-rich ZnPc-GONS catalysts, indicating the crucial role of both GONS and ZnPc in mediating charge transfer.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Physical
P. M. D. Serra, A. Espirito-Santo
Summary: Microbial Fuel Cells are an effective technology for wastewater treatment but their full energetic potential has not been fully exploited. Currently, significant energy losses are still associated with these systems, decreasing the efficiency. Research is needed on how to maximize power extraction from Microbial Fuel Cells in the future.
JOURNAL OF POWER SOURCES
(2021)
Article
Environmental Sciences
Pengfei Gan, Zihang Zhang, Yating Hu, Yunyi Li, Jiangyu Ye, Meiping Tong, Jialiang Liang
Summary: This work investigated the role of Fe in the synergetic effect of persulfate/sulfite and Fe2O3@g-C3N4 for the degradation of carbamazepine. The study found that Fe2O3 in FCN plays different roles for sulfite and persulfate activation. The initial pH was also found to affect CBZ removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Hong Li, Rongliang Qiu, Yetao Tang, Xiaoguang Duan, Yanling Gu, Hailan Yang, Qiang Chen, Zihan Shu, Ling Xiang, Shaobo Liu, Xiaofei Tan
Summary: Fe(IV) formation and PS activation in biochar/PS systems under a wide range of pH conditions were investigated using Fe-BC250. It was found that Fe-BC250/PS system showed superior performance in contaminant removal under alkaline conditions due to the slow release of Fe2+ and the formation of Fe(IV). This study provides new insights into Fe(IV) formation mechanism and highlights the potential application of low-cost iron-carbon composites in water treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Chunyang Lin, Shengna Liang, Xiaojing Yang, Qiao Yang
Summary: Microbial fuel cells (MFCs) based biosensors are widely studied for environmental monitoring. However, the responsive signals of toxins in microbial electrochemical sensors have not been extensively researched. This study analyzed the different response signals of sodium selenite over a concentration range of 0 to 150 mg/L. Correlation analysis revealed that high concentrations of exogenous selenite were negatively correlated with maximum voltage and maximum power density, while low concentrations were positively correlated with average voltage, maximum power density, and coulombic yield. The addition of sodium selenite solution also affected the anode community structure, resulting in changes in the removal efficiency of organic matter. Based on the analysis of experimental data, the maximum power density was identified as the best response signal for microbial fuel cell-based sensors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Bor-Yann Chen, Chung-Chuan Hsueh, Yu-Hsiu Lin, Lemmuel L. Tayo, Shu-Yun Sun, Junming Hong, Pei-Shan Cai
Summary: This study quantitatively deciphered the electron-transferring phenomena (ETP) in CC and AC to optimize bioelectric generation and dye decolorization. Supplementing cathode acceptors in the CC efficiently increased the stoichiometric ratio of electron transfer f value, significantly enhancing reductive decolorization performance. DC-MFC appeared to be more electroactive than single chamber-MFC for maximizing ET efficiency in SDD&BG.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Chemical
Huiyang Liu, Dong Wang, Hequn Kang, Jianfeng Yu
Summary: In this study, a novel sonochemical microreactor was designed to achieve efficient degradation of azo dye effluent. The system featured effective ultrasonic transmittance, improved temperature control, and continuous flow processing. The effects of different factors on the degradation efficiency of Orange G were investigated, and the maximum degradation efficiency reached 96.0% after 6 minutes of treatment. Compared with conventional chemistry treatment, ultrasound and microchannel enhanced the degradation efficiency by 9.9% and 2.7%, respectively, in this sonochemical microreactor system. The results clearly demonstrate the potential application of the newly designed microreactor for azo effluent treatment.
DESALINATION AND WATER TREATMENT
(2023)
Article
Engineering, Environmental
Zhibin Wu, Zhijun Tong, Yuanyuan Xie, Haibo Sun, Xiaomin Gong, Pufeng Qin, Yunshan Liang, Xingzhong Yuan, Dongsheng Zou, Longbo Jiang
Summary: In this study, a porous thin layered Fe, Co and O co-doped g-C3N4 material (FCOCN) was synthesized and used for tetracycline (TC) degradation. The results showed that FCOCN had higher degradation efficiency and kinetic constant in the presence of persulfate (PS). The efficiency of the reaction was improved by modulating the electronic structure and specific surface area of the material. FCOCN also exhibited good degradation performance for organic compounds in water and showed high TC elimination in various matrices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Yue Liu, Yingwei Li, Hu Li, Ruigang Wang, Jian Zhou, Ying Zhang, Guangzhou Qu, Tiecheng Wang, Hanzhong Jia
Summary: Through the novel strategy of plasma + iron, there were distinct synergistic effects on Cu-EDTA decomplexation, resulting in improved efficiency and energy efficiency compared to the single plasma system. Iron powder accelerated the decomposition of H2O2 and formation of center dot OH, mitigating the negative effects of radical quenchers. Co-precipitation with polymeric iron further promoted the removal of released Cu ions, leading to the identification of various organic compounds as byproducts of effective Cu-EDTA decomplexation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
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)