Article
Environmental Sciences
Zhengjun Qu, Lihui Huang, Mengmeng Guo, Ting Sun, Xiaoshen Xu, Zhenhui Gao
Summary: The application of polypyrrole/melamine foam (PPy-MF) auxiliary electrode in the traditional electrokinetic remediation (EKR) system significantly enhances the removal efficiency of Cr(VI) in heavily polluted soil. PPy-MF improves electrical conductivity, current strength, and electric field distribution. It also inhibits alkali front development and buffers catholyte's pH polarization. The use of PPy-MF auxiliary electrode increases the removal rates of total Cr and Cr(VI) and reduces the concentration of total Cr in the anolyte.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Ashley B. Davidson, Chris Holmden, Sulung Nomosatryo, Cynthia Henny, Roger Francois, Sean A. Crowe
Summary: The leaching of lateritic soils in Central Sulawesi Island, Indonesia can lead to drainage waters with high concentrations of Cr(VI). A remediation strategy involving FeSO4 solutions effectively removes Cr(VI) from the drainage, but the presence of Mn oxides may cause the oxidative remobilization of Cr(III) and lead to an increase in Cr(VI) concentration downstream. Further improvements to Cr(VI) remediation should focus on preventing the back reaction of Cr(III) with Mn oxides.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Polymer Science
Patrycja Bober, Islam M. Minisy, Zuzana Moravkova, Helena Hlidkova, Jiri Hodan, Jirina Hromadkova, Udit Acharya
Summary: Three-dimensional and porous polypyrrole (PPy) aerogels were synthesized via a simple two-step procedure involving cryopolymerization and freeze-drying. The choice of supporting polymers influenced the morphology, porosity, electrical conductivity, and mechanical properties of the PPy aerogels. These PPy aerogels exhibited effective adsorption of toxic Cr(VI) ions from aqueous solutions.
Article
Agricultural Engineering
Weipeng Pan, Ziyi Wang, Wenjuan Liu, Jian Lin
Summary: In this study, lignin fibers were prepared using a centrifugal spinning method to enhance its adsorption capacity for Cr(VI). The addition of sodium dodecyl sulfate and its subsequent dissolution during adsorption further improved the Cr(VI) adsorption capacity. These findings are significant for the application of lignin adsorbent materials in wastewater treatment.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Physical
Lei Wang, Haris Muhammad, Minwang Laipan, Xiaohu Fan, Junkang Guo, Yongtao Li
Summary: In this study, a new water remediation technique using an organic-inorganic composite was developed for the removal of Cr(VI) and Mo(VI). The composite showed high adsorption capacities and efficiency, following the Freundlich and Langmuir isotherm models.
APPLIED CLAY SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Peiyuan Xiao, Junqing Xu, Hongliang Shi, Fengyang Du, Huanzheng Du, Guangming Li
Summary: A chitosan-based magnetic porous microsphere (PPy@PMCS) was proposed for simultaneous Cr(VI) reduction and Cr(III) sequestration in a wide pH range. The abundant interaction sites of PPy@PMCS allowed for effective Cr(VI) adsorption and immediate reduction to less toxic Cr(III). The resulting Cr(III) was in-situ sequestrated by the complexation of chitosan matrix. PPy@PMCS exhibited superior adsorption capacity, even at near neutral pH, and could be easily separated and regenerated under an external magnetic field.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Green & Sustainable Science & Technology
Qian Wang, Jia Wen, Xiaohong Hu, Lang Xing, Caiya Yan
Summary: This study investigated the remediation of soil contaminated by hexavalent chromium using a combination of natural clay mineral attapulgite and natural antioxidant tea polyphenols. The results showed that the green-tea impregnated attapulgite effectively reduced the Cr(VI) content in soil and promoted the conversion of Cr(VI) to Cr(III). Additionally, it improved soil enzyme activities and environmental conditions, demonstrating its potential as a cost-effective and environmentally friendly solution for remediation of Cr(VI) contaminated soils.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Xiaofeng Jiang, Wenjun Long, Liangqiong Peng, Teng Xu, Faming He, Yuling Tang, Wenhua Zhang
Summary: The rapid immobilization of Cr(VI) from aqueous solution was achieved by reducing it to Cr(III) using tannic acid, followed by pH-triggered precipitation of organo-Cr(III) complexes formed in the redox reaction. This eco-friendly and cost-effective method utilizes natural polyphenols derived from plants.
Article
Environmental Sciences
Xinru Yang, Peng Liu, Meng Yao, He Sun, Ruxue Liu, Jiayin Xie, Yongsheng Zhao
Summary: The study found that using molasses to remediate Cr(VI)-contaminated groundwater is cost-effective and can effectively avoid secondary contamination. The addition of ascorbic acid can promote the rate of bioremediation, while NaHCO3 can buffer pH changes and promote the precipitation of Cr(III).
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Yaowu Cao, Qinghai Guo, Zheyan Miao, Baochun Tang, Yuehua Ma, Jie Zhao, Hongyu Song
Summary: In this study, a low-cost and highly efficient method to prepare ultra-thin layered meixnerite was reported. The material showed superior performance in treating Cr(VI)-contaminated aqueous solutions with minimal secondary pollution. The unique morphology of ultra-thin layered meixnerite facilitated its dispersion in solutions and provided more active sorption sites. Additionally, the material could undergo restacking during Cr(VI) removal, leading to enhanced sorption capacity. At higher reaction temperatures, the material showed improved Cr(VI) removal efficiency, making it suitable for treating industrial wastewaters with elevated temperatures.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Xuheng Li, Chunli Wang, Feng Liu, Zhihao Zhang, Jafar Ali, Qingwen Long, Jing Zhang
Summary: The MoS2 film electrode prepared by electrochemical deposition-annealing method successfully reduced the overpotential in the electrochemical reduction of Cr(VI), enhancing electron utilization and achieving a 99% reduction efficiency. In-situ generated hydrogen peroxide played a critical role in accelerating the reduction process. The selective oxygen reduction reaction on the MoS2 cathode, along with the preserved interfaces between 2H and 1T' in the heterophase MoS2, contributed to the high electrocatalytic activity and productivity of hydrogen peroxide.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Edson da S. Reis, Filipe D. S. Gorza, Graciela da C. Pedro, Bruna G. Maciel, Romario J. da Silva, Gabriela P. Ratkovski, Celso P. de Melo
Summary: In this study, a new hybrid magnetic nanocomposite (HMNC) based on maghemite, chitosan, and polypyrrole was prepared and utilized for water remediation protocols. The HMNC showed excellent removal capacity for Cr (VI) ions in aqueous media and demonstrated high reusability through multiple adsorption/desorption cycles. The hybrid composites offer a promising platform for wastewater treatment due to their high adsorption capabilities and easy removal of captured contaminants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Yawen Gu, Xiaoxia Chen, Liqiang Liu, Saifei Wang, Xinran Yu, Zhenhua Jia, Xiaohui Zhou
Summary: This research discovered an exceptional novel bacterium, Bacillus para-mycoides Cr6, which is capable of removing hexavalent chromium (Cr(VI)). The study investigated the molecular biology behind its removal mechanism and identified two key genes, bcr005 and bcb765, that play a role in the removal process. These genes encode the Cr(VI)-reductase BCR005 and Cr(VI)-binding protein BCB765, respectively, and their synergistic expression is essential for Cr(VI) removal by Cr6. This research provides a deeper understanding of the molecular mechanism of Cr(VI) removal and highlights the potential practical applications of BCR005 and BCB765 enzymes in the remediation of Cr-contaminated water.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Song Li, Hong-Yan Zeng, Jie Xiong, Sheng Xu
Summary: The conjugated polymer polypyrrole (PPy) was used to decorate ZnTi hydrotalcite (ZnTi-LDH) to construct an organic-inorganic PPy/ZnTi-LDH composite, which exhibited superior photocatalytic performance and stability under visible light irradiation for Cr(VI) reduction. The enhanced photocatalytic performances were attributed to the combined effect of ZnTi-LDH structure and conductive PPy facilitating charge transfer and increasing visible-light absorption. The crucial role of PPy in Cr(VI) reduction and the proposed photocatalytic reaction mechanism were also discussed.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Fen Zhang, Luyao Xi, Meiqi Zhao, Yaguang Du, Liying Ma, Shaohua Chen, Hengpeng Ye, Dongyun Du, Tian C. Zhang
Summary: In this study, a novel composite of PPy/NP was synthesized and applied for the efficient removal of hexavalent chromium from aqueous solutions. The results showed that the PPy/NP composites exhibited better Cr(VI) removal performance than PPy alone, and could be used as recyclable absorbents for multiple cycles.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Yushu Wang, Kojiro Uetani, Shouxin Liu, Xianquan Zhang, Yucai Wang, Ping Lu, Tong Wei, Zhuangjun Fan, Jing Shen, Haipeng Yu, Shuya Li, Qi Zhang, Qing Li, Juanjuan Fan, Ningning Yang, Qingwen Wang, Yixing Liu, Jun Cao, Jian Li, Wenshuai Chen
Article
Agricultural Engineering
Jun Fan, Ting Li, Yangzhao Ren, Xueren Qian, Qingwen Wang, Jing Shen, Yonghao Ni
INDUSTRIAL CROPS AND PRODUCTS
(2017)
Article
Agricultural Engineering
Anlong Zhang, Guiqiu Wang, Guoli Gong, Jing Shen
INDUSTRIAL CROPS AND PRODUCTS
(2017)
Article
Engineering, Chemical
Wen-Hui Zhang, Ishneet Kaur, Weipeng Zhang, Jing Shen, Yonghao Ni
SEPARATION AND PURIFICATION TECHNOLOGY
(2017)
Article
Materials Science, Multidisciplinary
C. Saravanan, Jing Shen, Bitao Xiong, Yonghao Ni
Article
Chemistry, Multidisciplinary
Juanjuan Fan, Shinsuke Ifuku, Mengzhu Wang, Kojiro Uetani, Haiwei Liang, Haipeng Yu, Yongming Song, Xiaohe Li, Jiale Qi, Yiqun Zheng, Haigang Wang, Jing Shen, Xianquan Zhang, Qing Li, Shouxin Liu, Yixing Liu, Qingwen Wang, Jian Li, Ping Lu, Zhuangjun Fan, Wenshuai Chen
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Chemistry, Multidisciplinary
Dong Wu, Limei Li, Ying Wang, Zhengren Meng, Xueren Qian, Yongsheng Wang, Jing Shen
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Review
Biochemistry & Molecular Biology
Bo Sun, Min Zhang, Jing Shen, Zhibin He, Pedram Fatehi, Yonghao Ni
CURRENT MEDICINAL CHEMISTRY
(2019)
Article
Materials Science, Composites
Bo Shao, Yiqun Fang, Bo Chen, Jing Shen, Shihua Xu, Rongxian Ou, Qingwen Wang
POLYMER COMPOSITES
(2020)
Article
Chemistry, Multidisciplinary
Jinming Wan, Peng Wang, Xueren Qian, Meiyun Zhang, Shunxi Song, Meng Wang, Qiyu Guo, Jing Shen
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Applied
Lijian Sun, Jing Shen, Xianhui An, Xueren Qian
Summary: This study introduces a novel concept of fabricating flame-retardant, mechanically strong, UV and blue light double-blocking carboxymethylated cellulose-based nanocomposite bioplastics enabled by nano-metal organic framework. The incorporation of nano-MIL-125(Ti)-NH2 significantly improves the mechanical strength and decreases the flammability of nanocomposite bioplastics, offering a facile strategy for diversified applications.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Applied
Limei Li, Xueren Qian, Jing Shen
Summary: Cellulosic paper, with its characteristics of renewability, biodegradability, flexibility, and recyclability, can be converted into a multifunctional wetstrength product through disassembly-initiated fiber processing. The disassembly process generates cellulosic additives for surface engineering, leading to the enhancement of dry and wet strengths by more than 8 and 35 times respectively. The engineered paper also exhibits flame-retardant, antibacterial, and liquid-barrier features, making it a potential replacement for difficult-to-degrade synthetic plastics.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Mingming Yang, Hailong Li, Jing Shen, Shujun Li, Shouxin Liu, Jian Li, Zhijun Chen, Meng Li, Tony D. James
Summary: In this study, the phosphorescence of the syringyl units of sodium lignosulfonate in water was investigated, and their lifetime was prolonged by encapsulation. The findings were applied to the development of afterglow paper, H2O2 sensor, and anti-counterfeiting applications.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Qing Li, Ming Dai, Xueren Qian, Tian Liu, Zhenbo Liu, Yu Liu, Ming Chen, Wang He, Suqing Zeng, Yu Meng, Chenchen Dai, Jing Shen, Yingtao Liu, Wenshuai Chen, Wenbo Liu, Ping Lu
Summary: A multifunctional nanocomposite paper (NGCP) was developed using wood-derived nanofibrillated cellulose (NFC) and graphene as building blocks. The NGCP samples showed flexibility, high mechanical strength, electrical resistance, and electrochemical activity. Even at high temperatures, NGCP maintained advantageous properties due to the high thermal stability of NFC and their entangled web-like structures.
JOURNAL OF RENEWABLE MATERIALS
(2021)
Article
Chemistry, Applied
Xiaoyan yu, Peiwen Bian, Yang Xue, Xueren Qian, Haipeng Yu, Wenshuai Chen, Xiaohai Hu, Peng Wang, Dong Wu, Qinghui Duan, Limei Li, Jing Shen, Yonghao Ni
CARBOHYDRATE POLYMERS
(2017)
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)
