Article
Engineering, Environmental
Shuchang Wang, Yang Deng, Binbin Shao, Jiahui Zhu, Xiaohong Guan
Summary: This study systematically evaluated the reactivity of Fe(VI) towards TrOCs and found that Fe(VI) exhibited superior reactivity towards phenolic compounds. The coexisting water matrix constituents not only affected the reactivity of different ferrate species, but also altered the concentrations of ferrates.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Analytical
Shuning Yin, Qunfang Shen, Yong Dong Liu, Rugang Zhong
Summary: This study investigated the mechanisms of nitrate formation from amino acids and amines during ozonation using the DFT method. The results showed that N-ozonation initially produced competitive nitroso- and N,N-dihydroxy intermediates, with the former being preferred for both amino acids and primary amines. Further ozonation generated oxime and nitroalkane, which were important intermediate products for nitrate formation. The ozonation of these intermediates was the step controlling nitrate yield, with the reactivity of the C=N moiety in the oxime explaining why amino acids had higher nitrate yields compared to general amines. The good relationship between nitrate yields and activation free energies confirmed the proposed mechanisms. Bond dissociation energy of C-alpha-H in nitroalkanes formed from amines was found to evaluate amine reactivity. These findings contribute to a better understanding of nitrate formation mechanisms and predicting nitrate precursors during ozonation.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2023)
Article
Chemistry, Physical
Fernando J. Beltran, Ana Maria Chavez, Pedro Cintas, R. Fernando Martinez
Summary: Gas-phase and aqueous oxidations of formic and oxalic acids with ozone and OH radicals were studied using DFT methods. The reactions proceeded through both common and distinctive pathways, involving H atom abstraction and formation of hydropolyoxide derivatives. The reactions with neutral ozone and OH radicals showed low energy concerted mechanisms. Interestingly, for formic acid, carbonylic H-abstraction was found to be more favorable than dissociative abstraction.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Multidisciplinary Sciences
Xinke Wang, Weihong Wang, Lisa M. Wingen, Veronique Perraud, Michael J. Ezell, Jessica Gable, Thomas L. Poulos, Barbara J. Finlayson-Pitts
Summary: Although nitro and amino alkenes are common in various industries, their environmental behaviors remain unclear. This study investigated the reactions of a series of model compounds containing different combinations of these functional groups with ozone. The results showed that vinyl nitro groups significantly decrease reactivity, while amino groups have the opposite effect. The findings provide insights into the environmental fates of these emerging contaminants, such as neonicotinoid pesticides.
Article
Engineering, Environmental
Tianqi Zhang, Urs von Gunten
Summary: This study investigated the kinetics and mechanisms of the reactions between chlorine and seven amides, finding that the apparent second-order rate constants for the reactions are in the range of 5.8 x 10-3 - 1.8 M- 1s- 1 at pH 8, with activation energies ranging from 62-88 kJ/mol. The reactions between chlorine and different amides decrease with increasing electron donor character of the substituents on the amide structures. The findings of this study improve the understanding of the fate of amides and chlorine during chlorination processes.
Article
Engineering, Environmental
Mischa Juette, Janine Grosse, Mohammad Sajjad Abdighahroudi, Christoph Schueth, Holger Lutze
Summary: This study found that N-acetyl-l-tyrosine and N-acetyl-l-tryptophan can react with ClO2 and form free available chlorine (FAC), which may contribute to pathogen inactivation.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Clayton R. Mulvihill, Yuri Georgievskii, Stephen J. Klippenstein
Summary: This paper investigates the quantitative descriptions of non-adiabatic transition rates at intermediate temperatures, focusing on the interplay between quantum effects and anharmonicity in the seam potential. The findings highlight the importance of quantum effects and anharmonicity in non-adiabatic reactions at intermediate temperatures.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Engineering, Environmental
Chaoqun Tan, Ying Shen, Xinchi Jian, Suqian Xu, Lin Deng, Huan He, Xinhua Min, Ming Chen
Summary: This study investigates the effectiveness of peroxymonosulfate (PMS) as an oxidative agent in the removal of micro-contaminants. The results show that PMS is more effective at higher pH values and achieves removal through the generation of different reactive oxygen species.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Review
Environmental Sciences
Zhonghao Chen, Wen-Da Oh, Pow-Seng Yap
Summary: Phenolic compounds are highly detrimental to human and living beings. The development of suitable remediation technologies is critically important. Utilizing enzymatic technologies for biodegradation is a promising solution to address pollution caused by phenolic compounds in aquatic environments. This review presents the latest developments in using immobilized laccase for the degradation of phenolic compounds in water.
Article
Green & Sustainable Science & Technology
Edna R. Meza-Escalante, Larissa Lepe-Martinie, Carlos Diaz-Quiroz, Denisse Serrano-Palacios, Luis H. Alvarez-Valencia, Ana Renteria-Mexia, Pablo Gortares-Moroyoqui, Gabriela Ulloa-Mercado
Summary: This study investigates the removal capacity of marine microalga for phenolic compounds and demonstrates that marine microalga Tetraselmis suecica can simultaneously degrade phenol, p-cresol, and o-cresol in a mixture. The results suggest that biological treatments using this marine microalga can be an effective method to remove phenolic compounds.
Article
Environmental Sciences
Vanessa Santolin, Gabriel Andre Tochetto, Adriana Dervanoski, Gean Delise Leal Pasquali
Summary: Advanced oxidative processes are effective in degrading organic compounds. The addition of hydrogen peroxide can achieve complete removal of contaminants and enhance the degradation rate.
WATER AIR AND SOIL POLLUTION
(2022)
Review
Chemistry, Multidisciplinary
Virender K. Sharma, Xingmao Ma, Radek Zboril
Summary: Water is a crucial component of the United Nations' sustainable development goals, and water reuse is becoming increasingly accepted in response to global water scarcity. However, traditional treatment processes face challenges in treating low concentrations of pollutants in the presence of other chemicals. Advanced oxidation processes and the use of single atom catalysts offer promising solutions to these challenges.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Applied
Pietro Previtali, Nick K. Dokoozlian, Bruce S. Pan, Kerry L. Wilkinson, Christopher M. Ford
Summary: This study found that grape ripening accelerates under warmer and drier conditions, which can lead to an imbalance in the accumulation of sugars, phenolic, and aromatic compounds, ultimately affecting the quality of wine. By manipulating crop load and irrigation, grape ripening rates can be altered, thereby influencing the aroma and profile of the resulting wine. Phenolic composition is influenced by the irrigation regime, with color and tannin levels increased by late season irrigation.
Article
Chemistry, Analytical
Guozhan Jiang, Rachel Fenwick, Jonathan Seville, Hameed B. Mahood, Rex B. Thorpe, Suchismita Bhattacharya, D. A. Sanchez Monsalve, Gary A. Leeke
Summary: The measurement of kinetic parameters in the pyrolysis of polyolefins requires the use of a lumped kinetic model. A non-isothermal method was established to predict the product distribution, and the measured parameters were validated using isothermal experimental data. The non-isothermal method proves to be a faster approach for measuring intrinsic rate constants at high temperatures.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Multidisciplinary
Claudio M. Nunes, Jose P. L. Roque, Srinivas Doddipatla, Samuel A. Wood, Robert J. McMahon, Rui Fausto
Summary: This study presents a new example of chemical reactivity governed by quantum tunneling and highlights the limitations of classical theories. The different conformers of a 2-formylphenylnitrene underwent spontaneous rearrangement to different products, and the kinetics measurements provided evidence of concomitant tunneling reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)