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Wang D, Yu Y, He J, Ma J, Zhang J, Strathmann TJ. Comprehending the practical implementation of permanganate and ferrate for water remediation in complex water matrices. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132659. [PMID: 37820527 DOI: 10.1016/j.jhazmat.2023.132659] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/22/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
Most previous studies examined permanganate or ferrate oxidation using various emerging pollutants (EPs) spiked in ultrapure water with concentrations of orders-of-magnitude higher than those in natural waters. In present study, we assessed the efficiency of permanganate and ferrate (with ozone as a comparison) at mg L-1 level to remove selected EPs at μg L-1 level in complex water matrices. The efficiency of permanganate and ferrate is more easily affected by the humic acid in synthetic water or dissolved organic matter (DOM) in natural river water compared to ozone. Experiment results revealed that humic acid or DOM were not mineralized by oxidants, but changed in compositional nature, including decreases in the aromaticity, electron-donating capacity, and average molecular weight. At molecular level, condensed aromatic, lignin-like, and tannin-like components in humic acid and DOM are the critical sites being attacked by permanganate or ferrate, the alkene groups and aromatic structures were oxidized predominantly to carboxylic acids. Overall, the present study provided insights into the performance of permanganate and ferrate used for EPs treatment under realistic conditions, as well as alternations of DOM that can be expected following exposure to these oxidants.
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Affiliation(s)
- Dingxiang Wang
- School of Environment, Harbin Institute of Technology, Harbin 150090, China; Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yongqiang Yu
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Jiahao He
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Jun Ma
- School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jing Zhang
- School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Timothy J Strathmann
- Department of Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401, United States
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Ershov BG, Panich NM. Ozone in Polar (Acetonitrile) and Nonpolar (Carbon Tetrachloride) Organic Liquids: Optical Absorption, Solubility, and Stability. ChemistrySelect 2022. [DOI: 10.1002/slct.202201462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Boris G. Ershov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences Leninskii pr. 31–4 Moscow 119071 Russia
| | - Nadezhda M. Panich
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences Leninskii pr. 31–4 Moscow 119071 Russia
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Panich NM, Ershov BG. Solubility and stability of ozone in acetonitrile. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ershov BG, Panich NM, Bykov GL, Kustov AL, Krasovskiy VG, Kustov LM. Ozonation of Decalin as a Model Saturated Cyclic Molecule: A Spectroscopic Study. Molecules 2021; 26:molecules26185565. [PMID: 34577038 PMCID: PMC8469405 DOI: 10.3390/molecules26185565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/07/2021] [Accepted: 09/11/2021] [Indexed: 11/29/2022] Open
Abstract
Ozonolysis is used for oxidation of a model cyclic molecule-decalin, which may be considered as an analog of saturated cyclic molecules present in heavy oil. The conversion of decalin exceeds 50% with the highest yield of formation of acids about 15–17%. Carboxylic acids, ketones/aldehydes, and alcohols are produced as intermediate products. The methods of UV-visible, transmission IR, attenuated total reflection IR-spectroscopy, NMR and mass-spectrometry were used to identify reaction products and unravel a possible reaction mechanism. The key stage of the process is undoubtedly the activation of the first C-H bond and the formation of peroxide radicals.
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Affiliation(s)
- Boris G. Ershov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, 31 Leninsky Prospect, bldg. 4, 119071 Moscow, Russia; (B.G.E.); (N.M.P.); (G.L.B.)
| | - Nadezhda M. Panich
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, 31 Leninsky Prospect, bldg. 4, 119071 Moscow, Russia; (B.G.E.); (N.M.P.); (G.L.B.)
| | - Gennadii L. Bykov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, 31 Leninsky Prospect, bldg. 4, 119071 Moscow, Russia; (B.G.E.); (N.M.P.); (G.L.B.)
| | - Alexander L. Kustov
- N.D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky prosp., 119991 Moscow, Russia; (A.L.K.); (V.G.K.)
- Institute of Ecotechnologies and Engineering, National University of Science and Technology MISiS, 4 Leninsky prosp., 119049 Moscow, Russia
- Chemistry Department, Moscow State University, 1 Leninskie Gory, bldg. 3, 119991 Moscow, Russia
| | - Vladimir G. Krasovskiy
- N.D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky prosp., 119991 Moscow, Russia; (A.L.K.); (V.G.K.)
| | - Leonid M. Kustov
- N.D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky prosp., 119991 Moscow, Russia; (A.L.K.); (V.G.K.)
- Institute of Ecotechnologies and Engineering, National University of Science and Technology MISiS, 4 Leninsky prosp., 119049 Moscow, Russia
- Chemistry Department, Moscow State University, 1 Leninskie Gory, bldg. 3, 119991 Moscow, Russia
- Correspondence: or
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Ponomarev AV, Ershov BG. The Green Method in Water Management: Electron Beam Treatment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:5331-5344. [PMID: 32267147 DOI: 10.1021/acs.est.0c00545] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
During the prebiotic era, radiolytic transformations in the oceans played a key role in purifying water from toxic impurities and, thus, played a role in the formation of the aquatic environment of our planet, making it suitable for the emergence of life. Today, the planet again faces the challenge of how to provide people with clean water. Therefore, it is reasonable to look back at past historical stages and again consider the possibility of neutralizing pollutants in water by means of radiolysis, which has already been tested by time. Modern radiolytic treatments can be much faster and safer thanks to the advent of powerful electron accelerators and high-rate electron beam treatment (ELT) of water and wastewater. Radiolytic treatment of water using accelerated electrons corresponds to the essence of advanced oxidative technologies and green chemistry. The ELT of water instantly generates a high concentration of short-lived radicals that can quickly neutralize and decompose chemical and bacterial pollutants. Due to the ability of accelerated electrons to penetrate into a substance, ELT provides the decomposition of both dissolved and suspended pollutants. The cleaning effect of ELT is due to the ability to inactivate toxic and chromophore functional groups, transform impurities into an easily removable form, damage the DNA of microorganisms and their spore forms, and increase the biodegradability of organic impurities. The use of ELT in water treatment provides significant savings in chemical reagents, thereby improving quality and reducing the number of cleaning steps. The compactness, high degree of automation of the equipment used, energy efficiency, high productivity, and excellent compatibility with traditional water treatment methods are important advantages of ELT. Unlike conventional chemicals, the excess radicals generated in the ELT process are converted back to water and hydrogen; thus, the chemical and corrosive activity of water does not increase. Equipping research institutes with electron accelerators, developing cheaper accelerators, and granting government support for pilot projects are key conditions for introducing ELT into water treatment practice.
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Affiliation(s)
- Alexander V Ponomarev
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect, 31, Moscow 119071, Russia
| | - Boris G Ershov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect, 31, Moscow 119071, Russia
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Qiu J, Liang Z, Tonokura K, Colussi AJ, Enami S. Stability of Monoterpene-Derived α-Hydroxyalkyl-Hydroperoxides in Aqueous Organic Media: Relevance to the Fate of Hydroperoxides in Aerosol Particle Phases. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3890-3899. [PMID: 32131591 DOI: 10.1021/acs.est.9b07497] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The α-hydroxyalkyl-hydroperoxides [R-(H)C(-OH)(-OOH), α-HH] produced in the ozonolysis of unsaturated organic compounds may contribute to secondary organic aerosol (SOA) aging. α-HHs' inherent instability, however, hampers their detection and a positive assessment of their actual role. Here we report, for the first time, the rates and products of the decomposition of the α-HHs generated in the ozonolysis of atmospherically important monoterpenes α-pinene (α-P), d-limonene (d-L), γ-terpinene (γ-Tn), and α-terpineol (α-Tp) in water/acetonitrile (W/AN) mixtures. We detect α-HHs and multifunctional decomposition products as chloride adducts by online electrospray ionization mass spectrometry. Experiments involving D2O and H218O, instead of H216O, and an OH-radical scavenger show that α-HHs decompose into gem-diols + H2O2 rather than free radicals. α-HHs decay mono- or biexponentially depending on molecular structure and solvent composition. e-Fold times, τ1/e, in water-rich solvent mixtures range from τ1/e = 15-45 min for monoterpene-derived α-HHs to τ1/e > 103 min for the α-Tp-derived α-HH. All τ1/e's dramatically increase in <20% (v/v) water. Decay rates of the α-Tp-derived α-HH in pure water increase at lower pH (2.3 ≤ pH ≤ 3.3). The hydroperoxides detected in day-old SOA samples may reflect their increased stability in water-poor media and/or the slow decomposition of α-HHs from functionalized terpenes.
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Affiliation(s)
- Junting Qiu
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan
| | - Zhancong Liang
- School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Kenichi Tonokura
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan
| | - Agustín J Colussi
- Ronald and Maxine Linde Center for Global Environmental Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Shinichi Enami
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan
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