Article
Chemistry, Multidisciplinary
Chuan-Wang Yang, Li Yuan, Hong-Zhi Zhou, Xin Zhang, Guo-Ping Sheng
Summary: The study revealed that NOM has high adsorption affinity towards AgNPs, leading to rapid formation of NOM-corona and enhanced stability of nanoparticles under high salinity conditions. Additionally, coating ligands (such as citrate and polyvinylpyrrolidone) significantly impact the dynamics and equilibrium constant of NOM-corona formation.
ENVIRONMENTAL SCIENCE-NANO
(2021)
Article
Environmental Sciences
Thanasis Mpouras, Angeliki Polydera, Dimitris Dermatas, Nicola Verdone, Giorgio Vilardi
Summary: pH value is the most crucial factor influencing the adsorption efficiency of MWCNTs, with Cr(VI) adsorption being inversely proportional to pH value and significantly decreased above 7. MWCNTs exhibit high adsorption capacity and the adsorption process is fast, being almost completed within 1 hour. The experimental results were interpreted using different isotherm models.
Article
Chemistry, Physical
Maarten Verbraeken, Alessio Centineo, Luigi Canobbio, Stefano Brandani
Summary: The study introduces a new methodology for correcting experimental Zero Length Column data, which accurately describes the composite effect of individual contributions. The methodology is validated through experiments and can be applied to nonlinear adsorption systems.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2021)
Article
Polymer Science
Jiali Qu, Yi Gao, Wantai Yang
Summary: In this study, a reactive molecular dynamics scheme was developed to simulate the polymerization of 1-pentene and cyclopentene with maleic anhydride. The simulation results showed that chain termination was mainly caused by intramolecular cyclic entanglement. The simulated results were in good agreement with experimental data, demonstrating the suitability of the model for self-stable precipitation polymerization.
Article
Environmental Sciences
Caroline Maria Bezerra de Araujo, Gessica Wernke, Marcos Gomes Ghislandi, Alexandre Diorio, Marcelo Fernandes Vieira, Rosangela Bergamasco, Mauricio Alves da Motta Sobrinho, Alirio Egidio Rodrigues
Summary: This study demonstrates that the agar-graphene oxide (A-GO) hydrogel is a viable and eco-friendly alternative for the selective removal of chloroquine diphosphate and the cationic dye Safranin-O from water.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Thi Hai Nguyen, Seongchul Ryu, Paripurnanda Loganathan, Jaya Kandasamy, Tien Vinh Nguyen, Saravanamuthu Vigneswaran
Summary: In this study, a natural laterite adsorbent from Vietnam was investigated for its potential application in removing arsenic contamination from drinking water supplies. The adsorbent exhibited good adsorption capacity for arsenic and the study also developed a model to predict the adsorption performance in column experiments and filters.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Chemical
Xingxing Zhang, Lujie Liu, Banghe Jiang, Hefei Zhao, Liming Zhao
Summary: This study analyzed the adsorption-desorption characteristics of AOS on resins with different solid phase structures, predicted and constructed the suitable SM-7Cl resin for AOS separation, and performed adsorption experiments to verify the prediction. The results provide optimized chromatographic media and separation processing for AOS production.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Outi Kaarela, Markus Koppanen, Tero Kesti, Riitta Kettunen, Marja Palmroth, Jukka Rintala
Summary: The study investigated the removal of different natural organic matter components from boreal lake water in a full-scale drinking water treatment plant using granular activated carbon filters containing different commercial carbons. Results showed that coagulation-flocculation, flotation, and chlorine dioxide oxidation were effective in reducing organic matter content, while sand and GAC filtration were efficient in removing BDOC. It was concluded that complementary analyses such as LC-OCD, FEEM, and BDOC are beneficial for optimizing NOM removal in DWTPs, and comparing different GACs in full-scale studies is important due to variations in TOC removal efficiencies.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Analytical
Cadianne Chambers, Hemant Nagar, Sumit Sharma, M. Toufiq Reza
Summary: This study focuses on synthesizing pyrolyzed hydrochar from corn stover to adsorb MCLR from aqueous solutions. The research shows that both porosity and surface functional groups play a role in the adsorption of MCLR. Additionally, atomistic simulations provide insight into the behavior of MCLR molecules and their high affinity for adsorption on graphene sheets.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Engineering, Chemical
Chun-Miao Zhang, Jing Guan, Lin-Na Liu, Zhang-Hong Wan, Shu-Guang Wang, Xue-Fei Sun
Summary: Fouling of CDI electrodes can negatively impact their performance, with NOM being a major foulant. Commercial SA, HA, and BSA were chosen as model substances for the different NOM groups. The presence of NOM reduced the practical performance of porous activated carbons, which could be valuable for future studies and applications.
Article
Engineering, Environmental
Mona Abbasi, Edwin Safari, Majid Baghdadi, Mehran Janmohammadi
Summary: In this study, sand enriched with graphene oxide (GO) was used to prevent heavy metals migration to groundwater. Batch experiments showed different adsorption capacities of GO for various heavy metals, with the nonlinear Freundlich model fitting the equilibrium reactions. The presence of GO enhanced the adsorption capacity of the sand column for heavy metals, and the adsorption behavior of GO in a mixture of metals was different from single components. Kinetic models successfully predicted the breakthrough curves of heavy metals in the reactive medium.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Chemical
Shifeng Zhao, Zhaosong Li, Haiyan Wang, Hanhan Huang, Caifeng Xia, Derui Liang, Junshan Yang, Qian Zhang, Zilin Meng
Summary: Mg-Al layered double hydroxides coated waste textile (MgAl-LDH@WT) were used for the removal of toxic metal ions such as As(V) and Cr(VI) from soil samples, yielding high adsorption capacities and showing a preferential adsorption of As(V) over Cr(VI). The results demonstrate a promising strategy for the excellent removal and convenient recovery of anionic heavy metals contaminated soil, highlighting the method's stability and partition capability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Yameng Ma, Jia Zhu, Jianghua Yu, Yicheng Fu, Chao Gong, Xiao Huang
Summary: In this study, Al-doped waste ceramsite (Al-ceramsite) was synthesized using sludge, cement block, and coal fly ash as ceramsite material. The Al-ceramsite showed efficient removal of phosphate (PO43--P) from aqueous solutions under optimized conditions. It was also successful in completely removing PO43--P from actual rainwater, with the effluent concentration meeting surface water quality standards. X-ray photoelectron spectroscopy (XPS) analysis indicated that ligand exchange and complexation were the main mechanisms of PO43--P removal by Al-ceramsite. This research highlights the potential of Al-ceramsite, a product made from industrial waste, for practical application in phosphorus removal.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Engineering, Chemical
Rongkui Su, Zishi Li, Xiancheng Ma, Yuying Li, Zheng Zeng, Liqing Li, Peng Sheng, Hanqing Wang, Shaobin Wang
Summary: The scientific design and preparation of porous carbon with high VOCs adsorption capacity are crucial for waste gas treatment. Machine learning was used to establish a prediction model for the adsorption conditions, nitrogen/oxygen groups, and pore structures, and molecular simulation was employed to calculate acetone adsorption isotherms with various nitrogen/oxygen groups and pore sizes, providing new insights into the adsorption behavior of acetone and theoretical support for the development of carbon-based adsorbents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Energy & Fuels
Jun Chen, Hongliang Li, Chunfu Liu, Lingyun Liu, Yu Sun, Fanfei Min
Summary: The study showed that quaternary ammonium salts can adsorb on the oxidized coal surface to improve its surface hydrophobicity, but cannot effectively promote the formation of hydrophobic agglomeration of coal particles. Water molecules mainly undergo strong hydration on oxidized coal surfaces by forming hydrogen bonds with oxygen-containing functional groups.
Article
Environmental Sciences
Gopal Penny, M. Shahjahan Mondal, Subir Biswas, Diogo Bolster, Jennifer L. Tank, Marc F. Mueller
WATER RESOURCES RESEARCH
(2020)
Article
Environmental Sciences
Guillem Sole-Mari, Daniel Fernandez-Garcia, Xavier Sanchez-Vila, Diogo Bolster
WATER RESOURCES RESEARCH
(2020)
Article
Water Resources
Michael J. Schmidt, Nicholas B. Engdahl, Stephen D. Pankavich, Diogo Bolster
ADVANCES IN WATER RESOURCES
(2020)
Article
Geosciences, Multidisciplinary
Gopal Penny, Connor Mullen, Diogo Bolster, Bruce Huber, Marc F. Mueller
Summary: Groundwater plays a vital role in supporting societal and ecological functions. The increasing water scarcity and climate variability have heightened the need for intensive groundwater management. To address the complex nature of groundwater systems, a simple web-based platform, anem, has been developed to assist users in defining aquifer properties, simulating particle tracking, and viewing hydraulic head maps. The platform is user-friendly, cost-effective, and allows for exploration of groundwater behavior under different conditions, benefiting both low-budget applications and advanced analysis through integration with the R language.
Article
Engineering, Environmental
Elise E. Wright, Nicole L. Sund, David H. Richter, Giovanni M. Porta, Diogo Bolster
Summary: The LATERS Markov model is applied to predict reactive transport and it is found that the accuracy of the prediction is influenced by the Damkohler numbers, with high Damkohler numbers leading to more challenging reactions. A key component in modeling high Damkohler systems is the incorporation of the idea that nearby particles are more likely to react, achieved by reducing the spatial grid resolution.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2021)
Article
Environmental Sciences
Guillem Sole-Mari, Michael J. Schmidt, Diogo Bolster, Daniel Fernandez-Garcia
Summary: This study utilizes a reduced-order basis to model reactive transport, maintaining constant spatial resolution in a Lagrangian context and simplifying the interaction between equilibrium and kinetic reactions, with results matching those of the Eulerian method.
WATER RESOURCES RESEARCH
(2021)
Article
Limnology
Zachary J. Hanson, Jacob A. Zwart, Stuart E. Jones, Alan F. Hamlet, Diogo Bolster
Summary: The study examined the potential impact of climate change on the hydrology of lakes in North America, finding that warming temperatures will lead to reduced ice cover and snowpack, increased evaporation, and varied responses among different lake types. Drainage lakes showed little change in water levels, while seepage lakes may experience a decrease in minimum water levels.
Article
Energy & Fuels
Paola Crippa, Mariana Alifa, Diogo Bolster, Marc G. Genton, Stefano Castruccio
Summary: This study develops a new model for alpha that captures hourly variability across different geographic/topographic features, outperforming prior formulations and reducing wind speed RMSE by 23-33% on average. The improved estimates have significant implications for wind energy potential assessments and wind farm siting.
Editorial Material
Geosciences, Multidisciplinary
Shannon L. Speir, Lanyu Shang, Diogo Bolster, Jennifer L. Tank, Casey J. Stoffel, Danielle M. Wood, Brett W. Peters, Na Wei, Dong Wang
Article
Environmental Sciences
Ceara J. Talbot, Diogo Bolster, David Medvigy, Stuart E. Jones
Summary: This study develops a conceptual framework of lateral carbon transport (LCT), focusing on dissolved organic carbon (DOC) transport, and operationalizes it with a coupled terrestrial-aquatic carbon and hydrology model. The research finds that climate is the strongest driver of LCT-DOC, with precipitation positively related and temperature inversely related to LCT-DOC at continental scales. Plant traits, especially water use efficiency, also interact strongly with climate and have a measurable influence on LCT-DOC.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2022)
Article
Environmental Sciences
Mariana Alifa, Stefano Castruccio, Diogo Bolster, Mercedes Bravo, Paola Crippa
Summary: This article presents a novel method to reduce uncertainty in health outcome models related to air pollution by increasing input data and quantifying tradeoffs. The method is applied to long-term mortality from fine particulate matter and short-term PM2.5-related mortality in an urban area.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Civil
Amy Kryston, Marc F. Muller, Gopal Penny, Diogo Bolster, Jennifer L. Tank, M. Shahjahan Mondal
Summary: Climate change affects water allocations in international river treaties. This study presents a method to design climate-robust treaty solutions by considering multiple objectives and uncertainties. The approach is applied to the Ganges water agreement, providing insights for improving transboundary allocations.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Liming Xing, Diogo Bolster, Haifei Liu, Thomas Sherman, David H. Richter, Kyle Rocha-Brownell, Zhiming Ru
Summary: This study investigates the transport of microplastics in open-channel flows by implementing three Markov models. The models are validated using numerical simulations and laboratory experiments, demonstrating their effectiveness and high efficiency. The research provides new insights into preventing and reducing the environmental hazards of microplastics.
WATER RESOURCES RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Pedro F. P. Brandao-Dias, Daniel M. C. Hallack, Elise D. D. Snyder, Jennifer L. L. Tank, Diogo Bolster, Sabrina Volponi, Arial J. J. Shogren, Gary A. A. Lamberti, Kyle Bibby, Scott P. P. Egan
Summary: Environmental DNA (eDNA) analysis is a powerful tool for detecting target organisms remotely. This study explores the possibility of obtaining longitudinal dynamics information on targets by separating different size components of eDNA within a sample. The results show that medium-sized particles decay more slowly and increase in proportion over time. Different sizes of eDNA particles do not decay independently, but a parsimonious mathematical model best explains the data. A framework for discerning target distance and abundance with eDNA data is proposed.
MOLECULAR ECOLOGY RESOURCES
(2023)
Article
Environmental Sciences
Connor Mullen, Marc F. Mueller, Gopal Penny, Fengwei Hung, Diogo Bolster
Summary: The common-pool nature of groundwater resources leads to over-pumping. In transboundary aquifers, differences in economic and hydrogeologic conditions between users can either dampen or amplify incentives to over-pump. Combinations of different types of user asymmetry can enhance common-pool overdraft.
WATER RESOURCES RESEARCH
(2022)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.