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Esmaeili S, Dehvari M, Neisi A, Takdastan A, Tahmasebi Birgani Y, Babaei AA. Ultrasound‒induced facile synthesis of spinel CoFe 2O 4‒PAC magnetic nanocatalyst for remediation of hypersaline petrochemical wastewater: Degradation mechanism, biodegradability enhancement and phytotoxicity mitigation. ENVIRONMENTAL RESEARCH 2024; 254:118676. [PMID: 38763285 DOI: 10.1016/j.envres.2024.118676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/03/2024] [Accepted: 03/09/2024] [Indexed: 05/21/2024]
Abstract
In this study, magnetic CoFe2O4-PAC nanocatalysts were synthesized through facile hydrothermal and co‒precipitation approaches with ultrasonic irradiation, which were used for the treatment of hypersaline petrochemical wastewater (HPCW). When an ultrasound‒induced synthesis process (US@CoFe2O4‒PAC) was used, a more efficient and stable magnetic spinel CoFe2O4‒PAC nanocatalyst was developed. The application of this nanocatalyst as a PMS activator, not only caused eradication of 90.4% of chemical oxygen demand (COD) of a HPCW after 90 min reaction time under the optimum conditions (pH 5-6, catalyst dose 1.0 g/L and 1.0 mM PMS), but also led to marginal leaching of iron (314 μg/L) and cobalt (95 μg/L) from the nanocatalyst. Recycling experiments over five consecutive runs showed a negligible decrease (7.2%) in COD removal efficiency which proved the stability and reusability of magnetic US@CoFe2O4-PAC. Two main mechanisms of adsorption and catalytic oxidation processes (homogeneous and heterogeneous PMS) are involved simultaneously in the PMS/US@CoFe2O4-PAC system, which are responsible for the destruction of refractory contaminants of HPCW through the generation of SO4•‒ and OH• radicals. COD of HPCW was mainly removed through SO4•- radical attack (73.6%) and the biodegradability of HPCW was enhanced dramatically after 90 min reaction time. The germination index (GI) of raw HPCW was increased 17.1 ± 4.2% and 24.3 ± 8.8% after 15 and 90 min reaction time, respectively, even PMS/US@CoFe2O4-PAC system showed less impact on phytotoxicity mitigation. Hence, it can be recommended to dilute the effluent before using for irrigational purpose. The findings of this study present practical significance of spinel US@CoFe2O4-PAC, which is an environment‒friendly catalyst, easy to handle and can sustain long‒term operation for the treatment of recalcitrant hypersaline wastewater and the other potential practical applications.
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Affiliation(s)
- Shirin Esmaeili
- Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahboobeh Dehvari
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abdolkazem Neisi
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Afshin Takdastan
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Yaser Tahmasebi Birgani
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Akbar Babaei
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Zhang Y, Li K, Zang M, Cheng Y, Qi H. Graphene-based photocatalysts for degradation of organic pollution. CHEMOSPHERE 2023; 341:140038. [PMID: 37660797 DOI: 10.1016/j.chemosphere.2023.140038] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Compared with the traditional wastewater treatment technology, semiconductor photocatalysis is a rapidly emerging environment-friendly and efficient Advanced Oxidation Process for degradation of refractory organic contaminants. Single-component semiconductor photocatalysts exhibit poor photocatalytic performance and cannot meet the requirements of wastewater treatment. The combination of semiconductor photocatalysts and Graphene can effectively improve the photocatalytic activity and stability of semiconductor photocatalysts. This review focuses on the synergistic effect of several types of semiconductors with Graphene for photocatalytic degradation of organic pollutants. After a brief introduction of the photodegradation mechanism of semiconductor materials and the basic description of Graphene, the synthesis, characterization and degradation performance of various Graphene-based semiconductor photocatalysts are emphatically introduced.
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Affiliation(s)
- Yuxi Zhang
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Kuangjun Li
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Meng Zang
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Yuanyuan Cheng
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China.
| | - Hongbin Qi
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China.
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3
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Korobiichuk I, Mel'nick V, Ostapenko Z, Ruzhinska L. Study of heat and mass transfer processes during extraction of plant raw materials under the influence of ultrasound. ULTRASONICS SONOCHEMISTRY 2023; 98:106512. [PMID: 37413915 PMCID: PMC10345156 DOI: 10.1016/j.ultsonch.2023.106512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/18/2023] [Accepted: 06/30/2023] [Indexed: 07/08/2023]
Abstract
Theoretical analysis of the process of biologically active substances (BAS) extraction from plant raw materials in conditions of ultrasonic action and without it to describe the kinetics of the process has been conducted. A mathematical model of the process of BAS extraction from plant raw materials to establish the dependence of changes in the concentration of BAS in the volume of cells in the intercellular space and in the main volume of the extractant has been developed. On the basis of the solution of the mathematical model the duration of the model of BAS extraction process from plant raw materials has been established, results show that the duration of the process of extraction of oil from plant raw materials in an acoustic extractor decreases by 1.5 times ultrasonic extraction can be used for the extraction of biologically active substances, such as essential oils, lipids and dietary supplements from plants.
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Affiliation(s)
- Igor Korobiichuk
- Łukasiewicz Research Network - Industrial Research Institute for Automation and Measurements PIAP, Warsaw, Poland.
| | - Viktorij Mel'nick
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
| | - Zhanna Ostapenko
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
| | - Ludmila Ruzhinska
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
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4
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Liu Z, Ren X, Duan X, Sarmah AK, Zhao X. Remediation of environmentally persistent organic pollutants (POPs) by persulfates oxidation system (PS): A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160818. [PMID: 36502984 DOI: 10.1016/j.scitotenv.2022.160818] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/17/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Over the past few years, persistent organic pollutants (POPs) exhibiting high ecotoxicity have been widely detected in the environment. Persulfate-oxidation hybrid system is one of the most widely used novel advanced oxidation techniques and is based on the persulfate generation of SO4-∙ and ∙OH from persulfate to degrade POPs. The overarching aim of this work is to provide a critical review of the variety of methods of peroxide activation (e.g., light activated persulfate, heat-activated persulfate, ultrasound-activated persulfate, electrochemically-activated persulfate, base-activated persulfate, transition metal activated persulfate, as well as Carbon based material activated persulfate). Specifically, through this article we make an attempt to provide the important characteristics and uses of main activated PS methods, as well as the prevailing mechanisms of activated PS to degrade organic pollutants in water. Finally, the advantages and disadvantages of each activation method are analyzed. This work clearly illustrates the benefits of different persulfate activation technologies, and explores persulfate activation in terms of Sustainable Development Goals, technical feasibility, toxicity assessment, and economics to facilitate the large-scale application of persulfate technologies. It also discusses how to choose the most suitable activation method to degrade different types of POPs, filling the research gap in this area and providing better guidance for future research and engineering applications of persulfates.
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Affiliation(s)
- Zhibo Liu
- College of Environmental Science and Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping 136000, China
| | - Xin Ren
- College of Environmental Science and Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping 136000, China; Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Siping 136000, China
| | - Xiaoyue Duan
- College of Environmental Science and Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping 136000, China
| | - Ajit K Sarmah
- The Department of Civil & Environmental Engineering, Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Xuesong Zhao
- College of Environmental Science and Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping 136000, China; Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Siping 136000, China.
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Adewuyi YG, Arif Khan M. Modeling the Synchronous Absorption and Oxidation of NO and SO2 by Activated Peroxydisulfate in a Lab-scale Bubble Reactor. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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NMR evidence for hydrogen bonding stabilized anti conformation of 1-methoxy-1-methyl-3-phenylurea and the concentration detection by SERS. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Dai C, Li S, Duan Y, Leong KH, Liu S, Zhang Y, Zhou L, Tu Y. Mechanisms and product toxicity of activated carbon/peracetic acid for degradation of sulfamethoxazole: implications for groundwater remediation. WATER RESEARCH 2022; 216:118347. [PMID: 35395496 DOI: 10.1016/j.watres.2022.118347] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/16/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Carbon-based materials activated peracetic acid (PAA) to repair groundwater is an environmentally friendly and low-cost technology to overcome secondary pollution problems. In this study, thermally modified activated carbon (AC600) was applied to activate PAA to degrade sulfamethoxazole (SMX). And the effect of groundwater pH, chloride ion (Cl-), bicarbonate (HCO3-), sulfate ion (SO42-), and natural organic matter (NOM) on SMX removal by AC600/PAA process was studied in detail. PAA could be effectively activated by AC600. Increasing AC600 dose (10-100mg/L) or PAA dosages (0.065-0.39 mM) generally enhanced the SMX removal, the excellent performance in SMX removal was achieved at 50 mg/L AC600 and 0.26 mM PAA. The removal of SMX was well-described by second-order kinetic, with the rate constant (kobs) of 10.79 M-1s-1, both much greater than the removal constants of PAA alone (0.034 M-1s-1) and AC600 alone (1.774 M-1s-1). R-O·(CH3C(O)OO·, CH3C(O)O·) and electron-transfer process were proved to be responsible for the removal of SMX while HO· and 1O2 made little to no contribution to the novel PAA/AC600 system, which differs from typical advanced oxidation processes. The SMX can be removed effectively over a wide pH range (3-9), exhibiting a remarkable pH-tolerant performance. Sulfate ion (SO42-), dissolved oxygen (DO), NOM displayed negligible influence on the SMX removal. Bicarbonate (HCO3-) exerted an inhibitory effect on SMX abatement, while chloride ion (Cl-) promoted the removal of SMX. This showed excellent anti-interference capacity and satisfactory decontamination performance under actual groundwater conditions. Furthermore, the degradation pathways of SMX were proposed, there was no obvious difference in the acute toxicity of the mixed products during the degradation process. It will facilitate further research of metal-free catalyst/PAA system as a new strategy for groundwater in-situ remediation technology.
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Affiliation(s)
- Chaomeng Dai
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P.R. China
| | - Si Li
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P.R. China
| | - Yanping Duan
- Institute of Urban Studies, School of Environmental and Geographical Sciences, Shanghai Normal University, 100 Guilin Rd., Shanghai 200234, P.R. China; Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai 200234, P.R. China.
| | - Kah Hon Leong
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, 31900, Kampar, Perak, Malaysia
| | - Shuguang Liu
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P.R. China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, P.R. China
| | - Lang Zhou
- Department of Civil, Architectural, and Environmental Engineering, The University of Texas at Austin, 301 E. Dean Keeton St., Stop C1786, Austin, TX 78712, USA
| | - Yaojen Tu
- Institute of Urban Studies, School of Environmental and Geographical Sciences, Shanghai Normal University, 100 Guilin Rd., Shanghai 200234, P.R. China; Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai 200234, P.R. China
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Li X, Luo R, Liang X, Wu Q, Gong C. Recent advances in enhancing reactive oxygen species based chemodynamic therapy. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Anucha CB, Altin I, Bacaksiz E, Stathopoulos VN. Titanium Dioxide (TiO₂)-Based Photocatalyst Materials Activity Enhancement for Contaminants of Emerging Concern (CECs) Degradation: In the Light of Modification Strategies. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100262] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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10
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Haroon M, Iali W, Al-Saadi AA. Conformational analysis and concentration detection of linuron: Spectroscopic NMR and SERS study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 263:120223. [PMID: 34329849 DOI: 10.1016/j.saa.2021.120223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023]
Abstract
Linuron is a commonly used organic herbicide which is used in plant growth control. Due to its potential health concerns, the characterization and monitoring of linuron have been a subject of several studies. In this work, we employed nuclear magnetic resonance (NMR) and Raman spectroscopic techniques supported with the density functional theory (DFT) to investigate the conformational behavior and electronic aspects of linuron. The selective nuclear Overhauser effect (SelNOE) spectra confirmed that linuron exists predominantly in the anti configuration and is facilitated with a weak intramolecular hydrogen bonding between the acidic amide proton and oxygen of methoxy moiety. Quantum chemical results showed that the corresponding syn form of the molecule is 8.5 kcal/mol less stable. Further, the surface enhanced Raman scattering (SERS) technique using gold nanoparticles (AuNPs) was implemented as a potential spectroscopic protocol for the concentration monitoring of trace linuron. The Raman responses of four vibrational modes, namely CC stretching, CN stretching, N-H rocking and ring deformation, were successfully enhanced with an excellent linear concentration-intensity dependency. The aromatic CC stretching vibration at 1595 cm-1 in the Raman spectra has demonstrated the highest enhancement factor (6.5 × 104) and the lowest limit of detection (10-7 M). The interaction of linuron with the gold nanocluster was simulated by establishing a simple DFT model which predicted that the most pronounced binding with the gold atom takes place at the benzene ring.
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Affiliation(s)
- Muhammad Haroon
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Wissam Iali
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Abdulaziz A Al-Saadi
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
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Abdelhay A, Othman AA, Albsoul A. Treatment of slaughterhouse wastewater using high-frequency ultrasound: optimization of operating conditions by RSM. ENVIRONMENTAL TECHNOLOGY 2021; 42:4170-4178. [PMID: 32200694 DOI: 10.1080/09593330.2020.1746409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/15/2020] [Indexed: 06/10/2023]
Abstract
Slaughterhouse processes produce substantial amounts of high organic strength wastewater due to high COD level. A fundamental work had been carried out to explore the removal of COD from actual poultry slaughterhouse wastewater by ultrasound irradiation. The effect of applied frequency, power density, irradiation time, pH, and adding H2O2 on COD removal was investigated. The COD removal reached ultimate levels after irradiation time of 180 min. The COD removal percentage increased from 2% to 43% and from 2% to 49% when the power density increased from 160 to 1200 W/L at working frequencies of 1142 and 578 kHz, respectively. Increasing the pH from 7 to 9 reduced the COD removal from 51% to 13%. At low power densities, the high frequency (1142 kHz) was more efficient in COD removal than low frequency (578 kHz) and vice versa at high power densities. A combined system of US and H2O2 was more effective in removing COD than US standalone system. Finally, the kinetics of the COD decay using sonication was found to obey the first-order model. In conclusion, the US can be used efficiently at least to pretreat slaughterhouse wastewater with a COD removal of about 50%.
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Affiliation(s)
- Arwa Abdelhay
- Civil and Environmental Engineering Department, German Jordanian University, Amman, Jordan
| | - Abeer Abu Othman
- Civil and Environmental Engineering Department, German Jordanian University, Amman, Jordan
| | - Abeer Albsoul
- Department of Chemical Engineering, Al-Huson University College, Al-Balqa Applied University, Irbid, Jordan
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12
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Xin C, Xia H, Zhang Q, Zhang L, Zhang W. Recovery of Zn and Ge from zinc oxide dust by ultrasonic-H 2O 2 enhanced oxidation leaching. RSC Adv 2021; 11:33788-33797. [PMID: 35497536 PMCID: PMC9042369 DOI: 10.1039/d1ra06510f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 09/27/2021] [Indexed: 12/07/2022] Open
Abstract
Zn and Ge were selectively extracted from zinc oxide dust (ZOD) by the ultrasonic-H2O2 (UH) combined oxidation-leaching process. In the leaching process, the effects of the dosage of H2O2 (6–29.5 mL), ultrasonic power, initial acidity (100–200 g L−1), liquid/solid mass ratio (4–8 : 1), leaching temperature (50–90 °C), and leaching time (30–240 min) on the leaching rates of Zn and Ge were studied. The experimental results showed that the ultrasonic power and the dosage of H2O2 have the greatest influence on the leaching rates of Zn and Ge. The results showed the optimum conditions as: ultrasonic power 200 W, the dosage of H2O2 14.8 mL, initial acidity 160 g L−1, liquid/solid mass ratio 7 : 1, leaching time 60 min, stirring speed 400 rpm, leaching temperature 60 °C, and the leaching rate of Zn and Ge reaches 99.61% and 88.29%, respectively. The leaching rates of Zn and Ge by UH were 7.86% and 5.65% higher than that by conventional leaching (CL), respectively. The experimental results showed that UH leaching technology can improve the rates of Zn and Ge from ZOD, reduce the leaching temperature, save the production cost, solve the problem of low leaching rates of Zn and Ge in ZOD treatment technology, and realize the resource, reduction and harmless treatment of ZOD. Zn and Ge were selectively extracted from zinc oxide dust (ZOD) by the ultrasonic-H2O2 (UH) combined oxidation-leaching process.![]()
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Affiliation(s)
- Chunfu Xin
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China .,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology Kunming 650093 China.,Kunming Key Laboratory of Special Metallurgy, Kunming University of Science and Technology Kunming 650093 China.,Key Laboratory of Unconventional Metallurgy, Ministry of Education Kunming 650093 China
| | - Hongying Xia
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China .,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology Kunming 650093 China.,Kunming Key Laboratory of Special Metallurgy, Kunming University of Science and Technology Kunming 650093 China.,Key Laboratory of Unconventional Metallurgy, Ministry of Education Kunming 650093 China
| | - Qi Zhang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China .,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology Kunming 650093 China.,Kunming Key Laboratory of Special Metallurgy, Kunming University of Science and Technology Kunming 650093 China.,Key Laboratory of Unconventional Metallurgy, Ministry of Education Kunming 650093 China
| | - Libo Zhang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China .,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology Kunming 650093 China.,Kunming Key Laboratory of Special Metallurgy, Kunming University of Science and Technology Kunming 650093 China.,Key Laboratory of Unconventional Metallurgy, Ministry of Education Kunming 650093 China
| | - Wei Zhang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China .,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology Kunming 650093 China.,Kunming Key Laboratory of Special Metallurgy, Kunming University of Science and Technology Kunming 650093 China.,Key Laboratory of Unconventional Metallurgy, Ministry of Education Kunming 650093 China
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Abazari R, Sanati S, Morsali A, Kirillov AM. Instantaneous Sonophotocatalytic Degradation of Tetracycline over NU-1000@ZnIn 2S 4 Core-Shell Nanorods as a Robust and Eco-friendly Catalyst. Inorg Chem 2021; 60:9660-9672. [PMID: 34161079 DOI: 10.1021/acs.inorgchem.1c00951] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The universal pollution of diverse water bodies and declined water quality represent very important environmental problems. The development of new and efficient photocatalytic water treatment systems based on the Z-scheme mechanisms can contribute to tackling such problems. This study reports the preparation, full characterization, and detailed sonophotocatalytic activity of a new series of hybrid NU@ZIS nanocomposites, which comprise a p-n heterojunction of 3D Zr(IV) metal-organic framework nanorods (NU-1000) and photoactive ZnIn2S4 (ZIS) nanostars. Among the obtained materials with varying content of ZIS (5, 10, 20, and 30%) on the surface of NU-1000, the NU@ZIS20 nanocomposite revealed an ultrahigh catalytic performance and recyclability in a quick visible-light-induced degradation of the tetracycline antibiotic in water under sonophotocatalytic conditions. Moreover, increased activity of NU@ZIS20 can be ascribed to the formation of a p-n heterojunction between NU-1000 and ZIS, and a synergistic effect of these components, leading to a high level of radical production, facilitating a Z-scheme charge carrier transfer and reducing the recombination of charge carriers. The radical trapping tests revealed that •OH, •O2-, and h+ are the major active species in the sonophotocatalytic degradation of tetracycline. Possible mechanism and mineralization pathways were introduced. Cytotoxicity of NU@ZIS20 and aquatic toxicity of water samples after tetracycline degradation were also assessed, showing good biocompatibility of the catalyst and efficacy of sonophotocatalytic protocols to produce water that does not affect the growth of bacteria. Finally, the obtained nanocomposites and developed photocatalytic processes can represent an interesting approach toward diverse environmental applications in water remediation and the elimination of other types of organic pollutants.
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Affiliation(s)
- Reza Abazari
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
| | - Soheila Sanati
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
| | - Ali Morsali
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
| | - Alexander M Kirillov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisbon 1049-001, Portugal.,Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
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14
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Adewuyi YG. Recent Advances in Fly-Ash-Based Geopolymers: Potential on the Utilization for Sustainable Environmental Remediation. ACS OMEGA 2021; 6:15532-15542. [PMID: 34179596 PMCID: PMC8223219 DOI: 10.1021/acsomega.1c00662] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/26/2021] [Indexed: 05/29/2023]
Abstract
This Mini-Review provides the fundamentals and the state-of-the-art overview on geopolymers, novel inorganic polymeric materials (also known as alkali-bounded ceramics), synthesized from aluminosilicate sources and explores their current and potential sustainable environmental applications. It summarizes and examines concisely the recent scientific advances on geopolymers widely synthesized from abundantly available fly-ash-based aluminosilicate materials via alkaline activation at relatively low temperatures. Although geopolymerization is not a new concept and has offered valuable solutions to some environmental challenges as a low-cost and environmentally benign alternative to conventional energy-intensive Portland cement-based construction materials and has also been used as a barrier in immobilizing toxic and radioactive metals, the application of this technology to produce effective adsorptive materials for mitigation of liquid- and gas-phase contaminants is relatively recent. The valorization of the fly-ash waste in the sustainable and cost-effective development of geopolymeric adsorbents and catalysts for the treatment and control of environmental contaminants and energy production and storage could lead to many economic benefits due to the low cost and resource recycling of this globally abundant raw material. Perspectives on the synthesis and utilization of new geopolymer-based adsorbents for environmental and energy applications with insights into future research directions, prospects, and challenges for economic large-scale production are addressed.
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15
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Nidheesh PV, Couras C, Karim AV, Nadais H. A review of integrated advanced oxidation processes and biological processes for organic pollutant removal. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2020.1864626] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Catia Couras
- Department of Environment and Planning & CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - Ansaf V. Karim
- Environmental Science and Engineering Department, Indian Institute of Technology, Bombay, India
| | - Helena Nadais
- Department of Environment and Planning & CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
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16
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Kerboua K, Hamdaoui O, Alghyamah A. Acoustic frequency and optimum sonochemical production at single and multi-bubble scales: A modeling answer to the scaling dilemma. ULTRASONICS SONOCHEMISTRY 2021; 70:105341. [PMID: 32971392 PMCID: PMC7786541 DOI: 10.1016/j.ultsonch.2020.105341] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 05/23/2023]
Abstract
The present work consists of an innovative approach aiming to address the scalability dilemma of the sonochemical activity dependency of acoustic frequency. The study originates from the discordance of observations between the theoretical investigations of the sonochemical activity of the single acoustic cavitation bubble in function of the acoustic frequency, in one hand, and the experimental findings regarding the optimal frequency condition, mainly in terms of pollutant degradation, in the other hand. A single bubble and an up-scaled model of the sonochemical activity are suggested and simulations were conducted based on both of them over the frequencies 20, 200, 300, 360, 443, 500, 600 and 800 kHz under an oxygen atmosphere. The results reveal that the sonochemical production at single bubble scale is monotonously decreasing with the increase of frequency, while all the products demonstrate an absolute optimum of sonochemical production at 200 kHz, except HO• that attains its maximum molar yield under 300 kHz. Besides, the production of the predominant species, namely HO2•, HO• and O3, manifests a clear rebound at 500 kHz. All the present results were compared to and confirmed by experimental findings, while the scalability of the concentrations of sonochemically produced species was discussed using a parameter we introduced as "the mass focusing factor".
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Affiliation(s)
- Kaouther Kerboua
- Higher School of Industrial Technologies, Department of Second Cycle, P.O. Box 218, 23000 Annaba, Algeria.
| | - Oualid Hamdaoui
- Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, 11421 Riyadh, Saudi Arabia
| | - Abdulaziz Alghyamah
- Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, 11421 Riyadh, Saudi Arabia
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17
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Anito DA, Wang TX, Liu ZW, Ding X, Han BH. Iminodiacetic acid-functionalized porous polymer for removal of toxic metal ions from water. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123188. [PMID: 32947749 DOI: 10.1016/j.jhazmat.2020.123188] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
The design of efficient adsorbent with abundant binding sites for heavy metal ions is crucial for developing innovative materials that will remove pollutant metal ions. The high uptake capacity, kinetics, and affinity towards the toxic metals are the key requirements that the materials under invesigation should accomplish. Here we report the synthesis of iminodiacetic acid-functionalized hypercrosslinked polymer (IDA-HCP) for purification of water polluted by toxic metal ions via coordination of carboxylate and amino active sites on the surface of porous polymer. The obtained porous polymer is stable under harsh conditions and the structural features on the polymer work together to help the removal of Pb(II) with 1138 mg g-1 uptake capacity. In the meanwhile, the IDA-HCP reveals reuseability and very promising capture efficiency not only for Pb2+, but also for Hg2+ and Cd2+ from a mixture of Pb2+, Hg2+, Cd2+, Co2+, Fe3+, Zn2+, Mg2+, and Na+ metal ions. This result gives us confidence that the polymer material can solve the pollution problem caused by various metal ions.
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Affiliation(s)
- Dejene Assefa Anito
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China
| | - Tian-Xiong Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China
| | - Zhi-Wei Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China
| | - Xuesong Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.
| | - Bao-Hang Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China.
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18
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Alvarado-Camacho C, Castillo-Araiza CO, Ruiz-Martínez RS. Degradation of Rhodamine B in water alone or as part of a mixture by advanced oxidation processes. CHEM ENG COMMUN 2020. [DOI: 10.1080/00986445.2020.1835874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Carlos Alvarado-Camacho
- Grupo de Procesos de Transporte y Reacción en Sistemas Multifásicos, Depto. de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana - Iztapalapa, Iztapalapa, Mexico
| | - Carlos O. Castillo-Araiza
- Grupo de Procesos de Transporte y Reacción en Sistemas Multifásicos, Depto. de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana - Iztapalapa, Iztapalapa, Mexico
| | - Richard S. Ruiz-Martínez
- Grupo de Procesos de Transporte y Reacción en Sistemas Multifásicos, Depto. de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana - Iztapalapa, Iztapalapa, Mexico
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19
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Drew SC. Aldehyde Production as a Calibrant of Ultrasonic Power Delivery During Protein Misfolding Cyclic Amplification. Protein J 2020; 39:501-508. [PMID: 33011953 DOI: 10.1007/s10930-020-09920-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2020] [Indexed: 11/30/2022]
Abstract
The protein misfolding cyclic amplification (PMCA) technique employs repeated cycles of incubation and sonication to amplify minute amounts of misfolded protein conformers. Spontaneous (de novo) prion formation and ultrasonic power level represent two potentially interrelated sources of variation that frustrate attempts to replicate results from different laboratories. We previously established that water splitting during PMCA provides a radical-rich environment leading to oxidative damage to substrate molecules as well as the polypropylene PCR tubes used for sample containment. Here it is shown that the cross-linking agent formaldehyde is generated from buffer ions that are attacked by hydroxyl radicals. In addition, free radical damage to protein, nucleic acid, lipid, and detergent molecules produces a substantial concentration of aldehydes (hundreds of micromolar). The measurement of aldehydes using the Hantzsch reaction provides a reliable and inexpensive method for measuring the power delivered to individual PMCA samples, and for calibrating the power output characteristics of an individual sonicator. The proposed method may also be used to better account for inter-assay and inter-laboratory variation in prion replication and de novo prion generation, the latter of which may correlate with aldehyde-induced cross-linking of substrate molecules.
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Affiliation(s)
- Simon C Drew
- Department of Medicine (Royal Melbourne Hospital), The University of Melbourne, Victoria, 3010, Australia. .,Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, 02-106, Poland.
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20
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Chen H, Wang C, Zhang J, Shi Y, Liu Y, Qian Z. NO x attenuation in flue gas by •OH/SO 4•--based advanced oxidation processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:37468-37487. [PMID: 32681339 DOI: 10.1007/s11356-020-09782-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
The combustion of fossil fuels has resulted in rapidly increasing emissions of nitrogen oxide (NOx), which has caused serious human health and environmental problems. NO capture has become a research focus in gas purification because NO accounts for more than 90% of NOx and is difficult to remove. Advanced oxidation processes (AOPs), features the little secondary pollution and the broad-spectrum strong oxidation of hydroxyl radicals (•OH), are effective and promising strategies for NO removal from coal-fired flue gas. This review provides the state of the art of NO removal by AOPs, highlighting several methods for producing •OH and SO4•-. According to the main radicals responsible for NO removal, these processes are classified into two categories: hydroxyl radical-based AOPs (HR-AOPs) and sulfate radical-based AOPs (SR-AOPs). This paper also reviews the mechanisms of NO capture by reactive oxygen species (ROS) and SO4•- in various AOPs. A HiGee (high-gravity) enhanced AOP process for improving NO removal, characterized by intensified gas-liquid mass transfer and efficient micro-mixing, is then proposed and discussed in brief. We believe that this review will be useful for workers in this field. Graphical abstract.
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Affiliation(s)
- Hongyu Chen
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cuicui Wang
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiahao Zhang
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yijie Shi
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuexian Liu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhi Qian
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
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21
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Fagan WP, Zhao J, Villamena FA, Zweier JL, Weavers LK. Synergistic, aqueous PAH degradation by ultrasonically-activated persulfate depends on bulk temperature and physicochemical parameters. ULTRASONICS SONOCHEMISTRY 2020; 67:105172. [PMID: 32454446 DOI: 10.1016/j.ultsonch.2020.105172] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 06/11/2023]
Abstract
Coupling ultrasound with other remediation technologies has potential to result in synergistic degradation of contaminants. In this work, we evaluated synergisms from adding high-power ultrasound (20 kHz; 250 W) to activated persulfate over a range of bulk temperatures (20-60 °C). We studied the aqueous degradation kinetics of three polycyclic aromatic hydrocarbons (PAHs: naphthalene, phenanthrene, and fluoranthene) treated by ultrasound-alone, heat-activated persulfate, and combined ultrasonically-activated persulfate (US-PS). At 20 °C, observed US-PS rate constants strongly correlated with Wilke-Chang diffusion coefficients. This correlation indicates PAH molecules diffuse to the bubble-water interface prior to reaction with sulfate radicals (SO4-) generated at the interface. At higher temperatures, observed US-PS rate constants appear to be a more complicated function of temperature and diffusion coefficients. Synergy indexes for PAHs with fast diffusion coefficients were greatest at 20 °C. Fluoranthene, the largest and most hydrophobic PAH, had a maximum synergy index at 30 °C; it benefited from additional thermal persulfate activation in bulk solution. Fluoranthene synergy indexes, however, decreased above 30 °C and became antagonistic at 60 °C. Electron paramagnetic resonance (EPR) spin trapping was used to quantify hydroxyl radical (OH) produced from acoustic cavitation in the absence of persulfate. These data showed consistent OH production from 20 to 60 °C, indicating PAH antagonisms at 60 °C were not due to lower bubble collapse temperatures. Instead, the results suggest that PAH antagonisms are caused by increased radical-radical recombination as bulk temperature increases. In effort to develop an efficient, combined remediation technology, this work suggests bulk temperatures between 20 and 40 °C maximize US-PS synergisms.
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Affiliation(s)
- William P Fagan
- Department of Civil, Environmental, and Geodetic Engineering, The Ohio State University, Columbus, OH 43210, United States
| | - Jia Zhao
- Department of Civil, Environmental, and Geodetic Engineering, The Ohio State University, Columbus, OH 43210, United States; College of Natural Resources and Environment, Hunan Agricultural University, Changsha, Hunan, China
| | - Frederick A Villamena
- Department of Biological Chemistry and Pharmacology and The Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, United States
| | - Jay L Zweier
- Department of Internal Medicine, Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, The Ohio State University College of Medicine, Columbus, OH 43210, United States
| | - Linda K Weavers
- Department of Civil, Environmental, and Geodetic Engineering, The Ohio State University, Columbus, OH 43210, United States.
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22
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Matafonova G, Batoev V. Dual-frequency ultrasound: Strengths and shortcomings to water treatment and disinfection. WATER RESEARCH 2020; 182:116016. [PMID: 32619682 DOI: 10.1016/j.watres.2020.116016] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/18/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
Since the early 2000s, dual-frequency ultrasound (DFUS) has received much attention for synergistically enhanced elimination of organic pollutants and pathogenic microorganisms from water. In the present review, we have surveyed recent developments in acoustic physics to elucidate the mechanism of synergistic effect under exposure of aqueous media to DFUS. Briefly, the nonlinear dynamics of microbubbles upon DFUS exposure produces additional frequencies, such as harmonics, subharmonics, ultraharmonics and combination frequencies. These increase the probability of bubbles collapse, thereby enhancing cavitation and generating more reactive oxygen species (ROS) for advanced oxidation processes (AOPs). Further, literature data on ROS generation, chemical degradation and microbial inactivation in aqueous media through DFUS alone and DFUS-based AOPs (involving oxidants or catalysts) have been discussed. In this regard, optimal frequency combination, sonoreactor type and transducer arrangement appear to be key parameters for achieving a high synergistic effect. Strengths and shortcomings of DFUS to water treatment and disinfection have been identified and future research directions have been proposed. Though most studies were conducted on pure (matrix-free) aqueous solutions, these AOPs could be applicable for treating real waters.
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Affiliation(s)
- Galina Matafonova
- Laboratory of Engineering Ecology, Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, Ulan-Ude, Russia.
| | - Valeriy Batoev
- Laboratory of Engineering Ecology, Baikal Institute of Nature Management, Siberian Branch of Russian Academy of Sciences, Ulan-Ude, Russia
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23
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Mancuso G, Langone M, Andreottola G. A critical review of the current technologies in wastewater treatment plants by using hydrodynamic cavitation process: principles and applications. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:311-333. [PMID: 32399243 PMCID: PMC7203374 DOI: 10.1007/s40201-020-00444-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 01/14/2020] [Indexed: 05/22/2023]
Abstract
In the last decade, hydrodynamic cavitation (HC) was increasingly used in the field of wastewater treatment. Due to its oxidative capability, HC was applied to treat aqueous effluents polluted by organic, toxic and bio-refractory contaminants, whereas its mechanical and chemical effects have allowed to disintegrate cells of microorganisms in biological applications. Due to their geometries, HC can be detected in some reactors, in which a variation of hydraulic parameters in the fluid such as flow pressure and flow velocity is induced. HC process involves the formation, growth, implosion and subsequent collapse of cavities, occurring in a very short period of time and releasing large magnitudes of power. In this paper, the vast literature on HC is critically reviewed, focusing on the basic principles behind it, in terms of process definition and analysis of governing mechanisms of both HC generation and pollutants degradation. The influence of various parameters on HC effectiveness was assessed, considering fluid properties, construction features of HC devices and technological aspects of processes. The synergetic effect of HC combined with chemicals or other techniques was discussed. An overview of the main devices used for HC generation and different existing methods to evaluate the cavitation effectiveness was provided. Knowledge buildup and optimization for such complex systems from mathematical modeling was highlighted.
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Affiliation(s)
- Giuseppe Mancuso
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, viale Giuseppe Fanin 50, 40127 Bologna, Italy
| | - Michela Langone
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, via Mesiano 77, 38123 Trento, Italy
| | - Gianni Andreottola
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, via Mesiano 77, 38123 Trento, Italy
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24
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Investigation of the Synergistic Effect of Sonolysis and Photocatalysis of Titanium Dioxide for Organic Dye Degradation. Catalysts 2020. [DOI: 10.3390/catal10050500] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Herein, we report the effect of sonoluminescence and an initial dye concentration on the sonophotocatalysis of TiO2 for the degradation of eosin B, a textile dye. We first investigated the light illuminated during ultrasound irradiation (sonoluminescence) by photographic images, a radical indicator (luminol), and photoluminescence spectra of the detection range of 300–1050 nm. Next, we examined the synergistic effect of sonolysis on photocatalysis by comparing the dye degradation of sonophotocatalysis to that of individual contributions of sonolysis and photocatalysis. Since it was found that the synergist effect is highly engaged with a dye concentration and sonication power, we conducted the comparison test in different concentrations of eosin B (5 and 20 mg/L) and ultrasound powers (35.4, 106.1, and 176.8 W/cm2). When the concentration of dyes was low, negative synergistic effects were found at all ultrasound powers, whereas at the high concentration, positive synergistic effects were observed at high ultrasound power. This difference in synergistic effects was explained by the influence of ultrasound on dynamics of dye adsorption on the TiO2 surface.
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25
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Rajchel-Mieldzioć P, Tymkiewicz R, Sołek J, Secomski W, Litniewski J, Fita P. Reaction kinetics of sonochemical oxidation of potassium hexacyanoferrate(II) in aqueous solutions. ULTRASONICS SONOCHEMISTRY 2020; 63:104912. [PMID: 31945577 DOI: 10.1016/j.ultsonch.2019.104912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 11/13/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
We studied sonochemical reactions resulting from ultrasonic treatment of potassium hexacyanoferrate(II) in aqueous solutions using a custom-built apparatus working at 536 kHz. We concluded that primary reactions are completely dominated by oxidation of Fe(II) to Fe(III) and did not find any evidences for degradation of cyanide. At the highest concentration used in the present study (0.1 M) we detected formation of pentacyanoaquaferrate(II) complex, which is most probably formed in reactions between hexacyanoferrate(III) anions and hydrogen atoms or hydrated electrons formed in sonochemical processes. We also determined that hydroxyl radicals formation rate in our system, (8.7 ± 1.5)∙10-8 M∙s-1, is relatively high compared to other reported experiments. We attribute this to focusing of the ultrasonic wave in the sample vessel. Finally, we suggest that oxidation rate of hexacyanoferrate(II) anions can be a convenient benchmark of efficiency of sonochemical reactors.
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Affiliation(s)
- Paulina Rajchel-Mieldzioć
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Ryszard Tymkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Jan Sołek
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Wojciech Secomski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Jerzy Litniewski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Piotr Fita
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland.
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26
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Abdelhay A, Allafi A, Albsoul A. Optimization of ibuprofen degradation in water using high frequency ultrasound-assisted biological reactor. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:2250-2259. [PMID: 32701502 DOI: 10.2166/wst.2020.291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ultrasound (US) is being considered as a promising emerging advanced oxidation process to degrade persistent organic-pollutants. This paper investigated the effect of several operating parameters on the degradation of a recalcitrant pharmaceutical product, namely ibuprofen (IBP), using an ultrasound-assisted biological reactor. The tested operating parameters are the power density (960, 480) W/L, US frequency (1,142, 860, 578) kHz, working volume (500, 250) mL, initial IBP concentration (30, 60) mg/L, and pH (8.2, 4). It was observed that the IBP degradation was directly influenced by the power density, and the highest degradation efficiency (99%) was obtained at 960 w/L. However, the degradation of IBP at sonication time of 120 min was found to increase from 39% to 96% while decreasing the US frequency from 1,142 to 578 kHz. The working volume had no clear effect on the IBP degradation. The optimal pH was found to be 4, which resulted in 99.5% IBP degradation efficiency after 120 min of sonication time. The degradation of IBP followed the first order kinetics. Finally, the sonically-treated water was fed to a subsequent aerobic biological reactor. The results revealed that the remaining chemical oxygen demand (COD) after sonication was lowered in the biological reactor by a percentage of 47%.
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Affiliation(s)
- Arwa Abdelhay
- Civil and Environmental Engineering department, German Jordanian University, Amman 11180, Jordan E-mail:
| | - Aya Allafi
- School of Natural Resources Engineering and management (SNREM), German Jordanian University, Amman 11180, Jordan
| | - Abeer Albsoul
- Department of Chemical Engineering, Al-Huson University College, Al-Balqa Applied University, Irbid, Jordan
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27
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González T, Dominguez JR, Correia S. Neonicotinoids removal by associated binary, tertiary and quaternary advanced oxidation processes: Synergistic effects, kinetics and mineralization. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 261:110156. [PMID: 32148258 DOI: 10.1016/j.jenvman.2020.110156] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/20/2019] [Accepted: 01/16/2020] [Indexed: 05/24/2023]
Abstract
The degradation of four representative neonicotinoids, namely Thiamethoxam, Imidacloprid, Acetamiprid and Thiacloprid, was carried out by the sequential association of different advanced oxidation processes, including Ozonation, Electro-chemical Oxidation, Ultrasound, Ultraviolet radiation, and their different possible associations. There are no published papers in the literature on the removal of this type of insecticides through these associated oxidation processes. Single oxidation processes did not achieve total pollutants removal in less than 3 h (only UV radiation treatment obtain a total removal of Thiamethoxan in 150 min, but with mineralization below 15% TOC). For double sequential processes, Electro-oxidation-Ozone treatment obtains a total removal of Imidacloprid in 120 min and an increase of mineralization to 50% TOC. Three or four sequential processes are recommended to improve degradation and mineralization rates in a significant way, Electro-oxidation-Ozone-UV treatment obtains a total removal of Thiamethoxan in 80 min with mineralization over 75% TOC. These results confirm important synergistic effects which were quantified. The global trend indicates that Thiamethoxam is the most oxidizable neonicotinoid, whereas Acetamiprid is the most recalcitrant compound. The degradation rate of each neonicotinoid followed pseudo-first-order kinetics and the different oxidation pathways were also quantified from a kinetic point of view.
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Affiliation(s)
- Teresa González
- Department of Chemical Engineering and Physical Chemistry, Area of Chemical Engineering, Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, 06006, Badajoz, Spain.
| | - Joaquin R Dominguez
- Department of Chemical Engineering and Physical Chemistry, Area of Chemical Engineering, Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, 06006, Badajoz, Spain.
| | - Sergio Correia
- Department of Chemical Engineering and Physical Chemistry, Area of Chemical Engineering, Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, 06006, Badajoz, Spain
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28
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Adewuyi YG, Khan MA. Simultaneous NO and SO 2 removal by aqueous persulfate activated by combined heat and Fe 2+: experimental and kinetic mass transfer model studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:1186-1201. [PMID: 29948722 DOI: 10.1007/s11356-018-2453-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
This study evaluates the chemistry, kinetics, and mass transfer aspects of the removal of NO and SO2 simultaneously from flue gas induced by the combined heat and Fe2+ activation of aqueous persulfate. The work involves experimental studies and the development of a mathematical model utilizing a comprehensive reaction scheme for detailed process evaluation, and to validate the results of an experimental study at 30-70 °C, which demonstrated that both SO2 and Fe2+ improved NO removal, while the SO2 is almost completely removed. The model was used to correlate experimental data, predict reaction species and nitrogen-sulfur (N-S) product concentrations, to obtain new kinetic data, and to estimate mass transfer coefficient (KLa) for NO and SO2 at different temperatures. The model percent conversion results appear to fit the data remarkably well for both NO and SO2 in the temperature range of 30-70 °C. The conversions ranged from 43.2 to 76.5% and 98.9 to 98.1% for NO and SO2, respectively, in the 30-70 °C range. The model predictions at the higher temperature of 90 °C were 90.0 and 97.4% for NO and SO2, respectively. The model also predicted decrease in KLa for SO2 of 1.097 × 10-4 to 8.88 × 10-5 s-1 (30-90 °C) and decrease in KLa for NO of 4.79 × 10-2 to 3.67 × 10-2 s-1 (30-50 °C) but increase of 4.36 × 10-2 to 4.90 × 10-2 s-1 at higher temperatures (70-90 °C). This emerging sulfate-radical-based process could be applied to the treatment of flue gases from combustion sources. Graphical abstract.
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Affiliation(s)
- Yusuf G Adewuyi
- Chemical, Biological, and Bioengineering Department, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA.
| | - Md Arif Khan
- Chemical, Biological, and Bioengineering Department, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA
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29
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Madhavan J, Theerthagiri J, Balaji D, Sunitha S, Choi MY, Ashokkumar M. Hybrid Advanced Oxidation Processes Involving Ultrasound: An Overview. Molecules 2019; 24:molecules24183341. [PMID: 31540329 PMCID: PMC6767267 DOI: 10.3390/molecules24183341] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/09/2019] [Accepted: 09/11/2019] [Indexed: 12/07/2022] Open
Abstract
Sonochemical oxidation of organic pollutants in an aqueous environment is considered to be a green process. This mode of degradation of organic pollutants in an aqueous environment is considered to render reputable outcomes in terms of minimal chemical utilization and no need of extreme physical conditions. Indiscriminate discharge of toxic organic pollutants in an aqueous environment by anthropogenic activities has posed major health implications for both human and aquatic lives. Hence, numerous research endeavours are in progress to improve the efficiency of degradation and mineralization of organic contaminants. Being an extensively used advanced oxidation process, ultrasonic irradiation can be utilized for complete mineralization of persistent organic pollutants by coupling/integrating it with homogeneous and heterogeneous photocatalytic processes. In this regard, scientists have reported on sonophotocatalysis as an effective strategy towards the degradation of many toxic environmental pollutants. The combined effect of sonolysis and photocatalysis has been proved to enhance the production of high reactive-free radicals in aqueous medium which aid in the complete mineralization of organic pollutants. In this manuscript, we provide an overview on the ultrasound-based hybrid technologies for the degradation of organic pollutants in an aqueous environment.
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Affiliation(s)
- Jagannathan Madhavan
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore 632115, Tamilnadu, India;
- Correspondence: (J.M.); (M.A.)
| | - Jayaraman Theerthagiri
- Centre of Excellence for Energy Research, Sathyabama Institute of Science and Technology, Deemed to be University, Chennai 600119, India;
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea;
| | - Dhandapani Balaji
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore 632115, Tamilnadu, India;
| | - Salla Sunitha
- Department of Chemistry, Sathyabama Institute of Science and Technology, Deemed to be University, Chennai 600119, India;
| | - Myong Yong Choi
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea;
| | - Muthupandian Ashokkumar
- School of Chemistry, University of Melbourne, Parkville campus, Melbourne, VIC 3010, Australia
- Correspondence: (J.M.); (M.A.)
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Liu XC, Li WQ, Wang YR, Zhou GN, Wang YX, He CS, Wang GM, Mu Y. Cathode-Introduced Atomic H* for Fe(II)-Complex Regeneration to Effective Electro-Fenton Process at a Natural pH. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:6927-6936. [PMID: 31117534 DOI: 10.1021/acs.est.9b00345] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Promotion of iron solubility using ligands is the preliminary step in the homogeneous electro-Fenton (EF) process at a mild pH, but the chelate efficiencies of most organic ligands are unsatisfactory, resulting in insufficient Fe(II) availability. In this study, atomic H* was, for the first time, introduced to the EF process to accelerate the regeneration of the Fe(II)-complex at a mild pH using a Ni-deposited carbon felt (Ni-CF) cathode. The introduction of atomic H* significantly elevated total organic carbon (TOC) abatement of ciprofloxacin (CIP) from 42% (CF) to 81% (Ni-CF) at a natural pH. In the presence of humic acids (HAs), atomic H* introduced via Ni-CF enhanced the CIP degradation rate to 10 times that of the CF at a mild pH. The electron spin resonance (ESR), density functional theory (DFT) calculations, electrochemical characterization, and in situ electrochemical Raman study clearly demonstrated that the atomic H* generated from the Ni-CF cathode was highly efficient at reducing Fe(III)-complexes at a natural pH. Additionally, the Ni-CF could generate atomic H* without significant nickel leaching. Thus, the atomic H* could continuously facilitate iron cycling and, consequently, enhance pollutant mineralization via the homogeneous EF process at a mild pH in an environmentally friendly manner.
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Affiliation(s)
- Xiao-Cheng Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
| | - Wen-Qiang Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
| | - Yi-Ran Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
| | - Guan-Nan Zhou
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
| | - Yi-Xuan Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
| | - Chuan-Shu He
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
| | - Gong-Ming Wang
- Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry , University of Science & Technology of China , Hefei 230026 , China
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Seid-Mohammadi A, Asgarai G, Ghorbanian Z, Dargahi A. The removal of cephalexin antibiotic in aqueous solutions by ultrasonic waves/hydrogen peroxide/nickel oxide nanoparticles (US/H2O2/NiO) hybrid process. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1603241] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Abdolmotaleb Seid-Mohammadi
- Social determinants of health research center (SDHRC), Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ghorban Asgarai
- Social determinants of health research center (SDHRC), Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Zeinab Ghorbanian
- Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abdollah Dargahi
- Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
- Student Research Committee, Hamadan University of Medical Sciences, Hamadan, Iran
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Fang Y, Hariu D, Yamamoto T, Komarov S. Acoustic cavitation assisted plasma for wastewater treatment: Degradation of Rhodamine B in aqueous solution. ULTRASONICS SONOCHEMISTRY 2019; 52:318-325. [PMID: 30559079 DOI: 10.1016/j.ultsonch.2018.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/16/2018] [Accepted: 12/03/2018] [Indexed: 06/09/2023]
Abstract
A novel wastewater treatment process, acoustic cavitation assisted plasma (ACAP) is proposed in this study aiming at expanding the treatable range of water pollutants due to a synergetic effect of ultrasound irradiation and high voltage plasma discharge. In this process, the role of acoustic cavitation is not only to provide generation of chemically active OH radicals, as for example in conventional ultrasonic wastewater treatment techniques, but also to ensure conditions for stable plasma generation in wastewater and, thus, to extend the treatable range of water pollutants. Rhodamine B (RhB) was used as a model pollutant in experiments examining effects of ultrasound amplitude, RhB initial concentration, output voltage, solution pH and electrical conductivity on the RhB degradation efficiency. The results revealed that the ultrasound-assisted plasma generation requires lower output voltages and allows to increase the acceptable range of electrical conductivity of treatable solutions up to 1000 μS/cm, that is about 24 times higher than in the case of conventional plasma discharge treatment. The alkaline and acid medium were found to be favorable for higher degradation efficiency. Additional measurements and results of recent investigations concerning underwater plasma showed that microbubbles presented in cavitation zone could serve as "bridges" making the pulse discharge propagation between the electrodes easier than in the conventional case. Besides, acoustic cavitation assists a faster transition of plasma discharge from ineffective streamer type to more effective spark type that further contributes to the improvement of the treatment performance.
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Affiliation(s)
- Yu Fang
- Graduate School of Environmental Studies, Tohoku University, 6-6-02 Aza Aoba, Aramaki, Aoba-Ku, Sendai 980-8579, Japan.
| | - Daiki Hariu
- Graduate School of Environmental Studies, Tohoku University, 6-6-02 Aza Aoba, Aramaki, Aoba-Ku, Sendai 980-8579, Japan
| | - Takuya Yamamoto
- Graduate School of Environmental Studies, Tohoku University, 6-6-02 Aza Aoba, Aramaki, Aoba-Ku, Sendai 980-8579, Japan
| | - Sergey Komarov
- Graduate School of Environmental Studies, Tohoku University, 6-6-02 Aza Aoba, Aramaki, Aoba-Ku, Sendai 980-8579, Japan
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ElMetwally A, Eshaq G, Al-Sabagh A, Yehia F, Philip C, Moussa N, ElShafei GM. Insight into heterogeneous Fenton-sonophotocatalytic degradation of nitrobenzene using metal oxychlorides. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.08.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abazari R, Mahjoub AR, Sanati S, Rezvani Z, Hou Z, Dai H. Ni–Ti Layered Double Hydroxide@Graphitic Carbon Nitride Nanosheet: A Novel Nanocomposite with High and Ultrafast Sonophotocatalytic Performance for Degradation of Antibiotics. Inorg Chem 2019; 58:1834-1849. [DOI: 10.1021/acs.inorgchem.8b02575] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Reza Abazari
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran 14115−175, Iran
| | - Ali Reza Mahjoub
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran 14115−175, Iran
| | - Soheila Sanati
- Department of Chemistry, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Zolfaghar Rezvani
- Department of Chemistry, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Zhiquan Hou
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Laboratory of Catalysis Chemistry and Nanoscience, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
| | - Hongxing Dai
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Laboratory of Catalysis Chemistry and Nanoscience, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
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Lee G, Chu KH, Al-Hamadani YAJ, Park CM, Jang M, Heo J, Her N, Kim DH, Yoon Y. Fabrication of graphene-oxide/β-Bi 2O 3/TiO 2/Bi 2Ti 2O 7 heterojuncted nanocomposite and its sonocatalytic degradation for selected pharmaceuticals. CHEMOSPHERE 2018; 212:723-733. [PMID: 30179837 DOI: 10.1016/j.chemosphere.2018.08.137] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/22/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
A graphene-oxide (GO)/β-Bi2O3/TiO2/Bi2Ti2O7 heterojuncted nanocomposite, designated as GBT, was synthesized via a two-step hydrothermal process. The sonocatalytic activity of the GBT was evaluated at several frequencies (28, 580, and 970 kHz) and compared with Bi-doped GO (GB) and Ti-doped GO (GT). Transmission electron microscopy images showed heterojuncted crystal structures of Bi and Ti on GO, and X-ray diffraction patterns verified that the crystal structures consisted of β-Bi2O3, TiO2, and Bi2Ti2O7 nanocomposites. Energy-dispersive X-ray spectroscopy revealed a higher proportion of metal on GBT surfaces compared with GB and GT surfaces. The energy band gaps of GT, GB, and GBT were 3.0, 2.8, and 2.5 eV, respectively. Two pharmaceuticals (PhACs; carbamazepine [CBZ] and acetaminophen [ACE]) were selected and treated under sonolytic conditions at frequencies of 28, 580, and 970 kHz at a power level of 180 W L-1. The selected pharmaceuticals, present at initial concentrations of 20 μM, were reduced by over 99% by ultrasonic irradiation in the presence of GBT. The 580 kHz treatment achieved the most rapid organic removal among the frequencies tested. The removal kinetic of CBZ was higher than that of ACE owing to its relatively high hydrophobicity. High sonocatalytic activity of GBT was observed through measurement of H2O2 in solution. Because of its low band gaps and high surface activity, GBT exhibited higher sonolytic activity in removing selected PhACs than GT or GB.
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Affiliation(s)
- Gooyong Lee
- Green Technology Center, NamsanSquare Bldg., 173, Toegye-ro, Jung-gu, Seoul, 04554, Republic of Korea
| | - Kyoung Hoon Chu
- School of Civil, Environmental and Architectural Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Yasir A J Al-Hamadani
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
| | - Min Jang
- Department of Environmental Engineering, Kwangwoon University, 447-1Wolgye-Dong Nowon-Gu, Seoul, 01897, Republic of Korea
| | - Jiyong Heo
- Department of Civil and Environmental Engineering, Korea Army Academy at Young-cheon, 495 Hogook-ro, Kokyungmeon, Young-Cheon, Gyeongbuk, 38900, Republic of Korea
| | - Namguk Her
- Department of Civil and Environmental Engineering, Korea Army Academy at Young-cheon, 495 Hogook-ro, Kokyungmeon, Young-Cheon, Gyeongbuk, 38900, Republic of Korea
| | - Do-Hyung Kim
- Korea Environmental Industry & Technology Institute, 215 Jinheungno, Eunpyeong-gu, Seoul, Republic of Korea.
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC, 29208, USA.
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Abeledo-Lameiro MJ, Ares-Mazás E, Goméz-Couso H. Use of ultrasound irradiation to inactivate Cryptosporidium parvum oocysts in effluents from municipal wastewater treatment plants. ULTRASONICS SONOCHEMISTRY 2018; 48:118-126. [PMID: 30080534 DOI: 10.1016/j.ultsonch.2018.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 04/12/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Water reuse is currently considered an innovative way to addressing water shortage that can provide significant economic, social and environmental benefits, particularly -but not exclusively- in water deficient areas. The potential transmission of infectious diseases is the most common concern in relation to water reclamation. Cryptosporidium is an important genus of protozoan enteropathogens that infect a wide range of vertebrate hosts, including humans. The infective form (oocyst) is highly resistant to the environmental conditions and disinfection treatments. Consequently, Cryptosporidium is the most common etiological agent identified in waterborne outbreaks attributed to parasitic protozoa worldwide. The present study evaluates the efficacy of ultrasound disinfection, at three power levels (60, 80 and 100 W), pulsed at 50% or in continuous mode, for inactivating the waterborne protozoan parasite Cryptosporidium parvum in simulated and real effluents from municipal wastewater treatment plants (MWTPs). Overall interpretation of the results shows that the application of ultrasound irradiation at 80 W power in continuous mode for an exposure time of 10 min drastically reduced the viability of C. parvum. Thus, oocyst viabilities of 4.16 ± 1.93%; 1.29 ± 0.86%; 3.16 ± 0.69%; and 3.15 ± 0.87% were obtained in distilled water, simulated, real and filtered MWTP effluents, respectively (vs 98.57 ± 0.01%, initial oocyst viability), as determined using inclusion/exclusion of the fluorogenic vital dye propidium iodide, an indicator of the integrity of the oocyst wall. Independently of the mode used (pulsed/continuous) and at 80 W power, higher level of oocyst inactivation was detected in MWTP effluents than in distilled water used as a control solution, may be due to the differences in the chemical composition of the samples. Comparison of the results obtained in both modes showed that use of the continuous mode yielded significantly lower oocyst viability. However, when the Dose parameter was considered (energy per volume unit), no statistically significant differences in oocyst viability were observed in relation to the type of mode used. The results demonstrate that ultrasound technology represents a promising alternative to the disinfection methods (ultraviolet irradiation and chlorine products) currently used in water reclamation as it drastically reduces the survival of Cryptosporidium oocysts, without changing the chemical composition of the water or producing toxic by-products.
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Affiliation(s)
- María Jesús Abeledo-Lameiro
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, A Coruña, Spain
| | - Elvira Ares-Mazás
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, A Coruña, Spain
| | - Hipólito Goméz-Couso
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, A Coruña, Spain; Institute of Food Research and Analysis, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, A Coruña, Spain.
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Kerabchi N, Merouani S, Hamdaoui O. Liquid depth effect on the acoustic generation of hydroxyl radical for large scale sonochemical reactors. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.05.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Montemurro N, García-Vara M, Peña-Herrera JM, Lladó J, Barceló D, Pérez S. Conventional and Advanced Processes for the Removal of Pharmaceuticals and Their Human Metabolites from Wastewater. ACTA ACUST UNITED AC 2018. [DOI: 10.1021/bk-2018-1302.ch002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Affiliation(s)
- Nicola Montemurro
- Water and Soil Quality Research Group, Department of Environmental Chemistry (IDAEA), Spanish National Research Council (CSIC), Barcelona 08034, Spain
| | - Manuel García-Vara
- Water and Soil Quality Research Group, Department of Environmental Chemistry (IDAEA), Spanish National Research Council (CSIC), Barcelona 08034, Spain
| | - Juan Manuel Peña-Herrera
- Water and Soil Quality Research Group, Department of Environmental Chemistry (IDAEA), Spanish National Research Council (CSIC), Barcelona 08034, Spain
| | - Jordi Lladó
- Department of Mining, Industrial and TIC Engineering (EMIT), Universitat Politécnica de Catalunya (UPC), Manresa, Barcelona 08242, Spain
| | - Damià Barceló
- Water and Soil Quality Research Group, Department of Environmental Chemistry (IDAEA), Spanish National Research Council (CSIC), Barcelona 08034, Spain
| | - Sandra Pérez
- Water and Soil Quality Research Group, Department of Environmental Chemistry (IDAEA), Spanish National Research Council (CSIC), Barcelona 08034, Spain
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Zhu C, Jiang C, Chen S, Mei R, Wang X, Cao J, Ma L, Zhou B, Wei Q, Ouyang G, Yu Z, Zhou K. Ultrasound enhanced electrochemical oxidation of Alizarin Red S on boron doped diamond(BDD) anode:Effect of degradation process parameters. CHEMOSPHERE 2018; 209:685-695. [PMID: 29958164 DOI: 10.1016/j.chemosphere.2018.06.137] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 06/08/2023]
Abstract
Textile wastewater is characterized by high toxicity, complex structure, and resistance to biodegradation. Therefore, advanced oxidation technologies have received extensive attention. However, it is usually difficult to achieve a desired degradation effect using a single technology. The combination of various advanced oxidation technologies is an important way to achieve efficient degradation of organic wastewater. The present investigation was focused on ultrasound enhanced electrochemical oxidation (US-EO) of typical anthracene Alizarin Red S dye on a boron doped diamond anode. Our work indicates that ultrasonic oxidation technology which is mainly based on cavitation, can produce strongly oxidizing active substances such as OH, HO2, O, and H2O2, that accelerate the destruction of the dye molecular structure and achieve dye decolorization and mineralization. The effects on cavitation and decomposition of ARS by the parameters that affect degradation, including solution temperature, initial pH, and electrolytes, were examined. Results show that low temperature was more conducive to ultrasonic cavitation in the US-EO process; the degradation efficiency rate of EO was higher than that of US-EO when the solution temperature was above 45 °C. Ultrasonic cavitation was significantly more efficient in acid than in alkaline conditions. Almost 100% color removal and 86.07% COD removal was achieved for 100 mg L-1 ARS concentration with a 0.05 M Na2SO4 electrolyte, temperature of 30 °C and pH of 4.97 after 3 h. GC-MS analysis showed that the intermediate products of ARS in the US-EO process were phthalic anhydride, PEAs and bisphenol A, which is eventually mineralized to CO2 and H2O.
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Affiliation(s)
- Chengwu Zhu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
| | - Chuqi Jiang
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
| | - Shou Chen
- Shenzhen 863 New Material and Technology Co., Ltd, BeautyStar Sci-tech Industrial Park, 2/F, Building 2, No.1001, Longgang Road, (Pingdi Section), Longgang District, Shenzhen, 518117, PR China
| | - Ruiqiong Mei
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
| | - Xin Wang
- Shenzhen 863 New Material and Technology Co., Ltd, BeautyStar Sci-tech Industrial Park, 2/F, Building 2, No.1001, Longgang Road, (Pingdi Section), Longgang District, Shenzhen, 518117, PR China
| | - Jun Cao
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
| | - Li Ma
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
| | - Bo Zhou
- School of Engineering and Materials Science, Queen Mary University of London, Mile End, London, E1 4NS, UK
| | - Qiuping Wei
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China.
| | - Guangqi Ouyang
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
| | - Zhiming Yu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
| | - Kechao Zhou
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, PR China
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Dinesh GK, Saranya R. Facile approach for synthesis of stable, efficient, and recyclable ZnO through pulsed sonication and its application for degradation of recalcitrant azo dyes in wastewater. CAN J CHEM 2018. [DOI: 10.1139/cjc-2017-0696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the present study, the ultrasound in pulsed mode was used as a part of an advanced oxidation method. The influence of the pulsed ultrasound mode for the preparation of the zinc oxide (ZnO) wurtzite nanoparticle was investigated. The catalysts synthesized were analysed using SEM, TEM, EDAX, BET surface area, XRD, and DRS to study their morphological and structural characterizations. The ZnO nanoparticles exhibited a highly hexagonal structure from pulsed sonication synthesis route. The efficiency of the decolourization of the reactive red 4 (RR4) dye was studied under different operation parameters such as dye concentration, initial solution pH, oxidant (e.g., H2O2) concentration, and catalyst loading. The hybrid combined process of pulsed sonolysis, pH (4.0), H2O2 (17.64 mmol), and catalyst (0.35 g/L) achieved 97% degradation and 87.5% chemical oxygen demand removal in about 20 min of reaction time. The cyclic degradation studies of RR4 removal with 0.35 g/L of ZnO showed the reusability of catalyst up to the fifth removal cycle with negligible loss in the catalytic performance. GC–MS study, used for the detection of the RR4 intermediates, revealed the oxidation–reduction reaction by the reactive radicals proceeded via the reductive cleavage of the azo bonds. The studied process, based on the pulsed ultrasound, is found to be effective for the degradation of RR4 dye.
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Affiliation(s)
- G. Kumaravel Dinesh
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal (M.P.), India
| | - Rameshkumar Saranya
- Polymeric Materials & NanoComposites (PMNC), Department of Physics, Trinity College Dublin, University of Dublin, Dublin, Ireland
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He Z, Qian J, Wang Z, Yi S, Mu J. Effects of Ultrasound Pretreatment on Eucalyptus Thermal Decomposition Characteristics As Determined by Thermogravimetric, Differential Scanning Calorimetry, and Fourier Transform Infrared Analysis. ACS OMEGA 2018; 3:6611-6616. [PMID: 30023954 PMCID: PMC6044828 DOI: 10.1021/acsomega.8b00382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/07/2018] [Indexed: 06/08/2023]
Abstract
Samples were pretreated by ultrasound at 300 W and 28 kHz in three different solutions. The thermal degradation characteristics of the samples were then characterized via thermogravimetric, differential scanning calorimetry, and Fourier transform infrared analysis in a nitrogen environment. The characteristic of gas product release, the formation mechanisms of the main products, and the mechanistic basis for the effects of ultrasound on wood components were studied. The results showed that the gaseous products are the same with ultrasound pretreatment but the amounts are changed. The gaseous products mainly constitute of CO, H2O, CO2, CH4, and CH3COOH, and more gaseous products were produced at 361 °C than at 308 °C. The reaction rates for specimens pretreated in aqueous soda solution proceeded faster than specimens pretreated in aqueous acetic acid solution and distilled water. Moreover, the maximum FTIR spectra absorbance appeared around 341 °C for specimens pretreated in aqueous soda solution but appeared around 369 °C for the control sample and samples pretreated in distilled water or acetic acid solution. The heat flows for specimens pretreated in aqueous soda solution, compared to control group, was much lower. Additionally, hydroxyl and hydroperoxy radicals provided by ultrasound cavitation in alkaline conditions act to intensify the overall rates of reactions.
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Lee G, Ibrahim S, Kittappa S, Park H, Park CM. Sonocatalytic activity of a heterostructured β-Bi 2O 3/Bi 2O 2CO 3 nanoplate in degradation of bisphenol A. ULTRASONICS SONOCHEMISTRY 2018; 44:64-72. [PMID: 29680629 DOI: 10.1016/j.ultsonch.2018.02.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 06/08/2023]
Abstract
Novel heterostructured β-Bi2O3/Bi2O2CO3 nanoplates (hBN) were synthesized to observe the sonocatalytic degradation of bisphenol A (BPA) (widely used as a model pollutant) under ultrasonic (US) irradiation. Prior to obtaining the hBN, the Bi2O2CO3 micropowder precursor was prepared under hydrothermal conditions and then converted to hBN by increasing the calcination temperature to 300 °C. The synthesized hBN samples were characterized by field emission scanning electron microscope with energy dispersive X-ray analysis (FESEM/EDX), transmission electron microscopy (TEM), X-ray diffraction (XRD), ultraviolet-visible spectrophotometer diffuse reflection spectroscopy (UV-vis DRS), and X-ray photoelectron spectroscopy (XPS). The hBN/US system exhibited greater sonocatalytic activity for the degradation of BPA than the US treatment with the single element bismuth oxide, β-Bi2O3 prepared by annealing the Bi2O2CO3 precursor at 400 °C for 1 h. The US frequency and US power intensity in the hBN/US system were the key operating parameters, which were responsible for the complete degradation of BPA during 6 h of reactions. The degradation efficiency of BPA under the US irradiation was positively correlated with the dose of hBN. Our findings indicate that heterostructured hBN can be used as an efficient sonocatalyst for the catalytic degradation of BPA in water and wastewater treatment.
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Affiliation(s)
- Gooyong Lee
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, Jalan Universiti, Kuala Lumpur 50603, Malaysia
| | - Shaliza Ibrahim
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, Jalan Universiti, Kuala Lumpur 50603, Malaysia
| | - Shanmuga Kittappa
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, Jalan Universiti, Kuala Lumpur 50603, Malaysia
| | - Heekyung Park
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
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Rani CN, Karthikeyan S. Performance of an indigenous integrated slurry photocatalytic membrane reactor (PMR) on the removal of aqueous phenanthrene (PHE). WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:2642-2656. [PMID: 29944129 DOI: 10.2166/wst.2018.220] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, a slurry photocatalytic membrane reactor (PMR) was developed and evaluated for the degradation of aqueous phenanthrene (PHE). During continuous process with a hydraulic retention time (HRT) of 140 min, the maximum PHE degradation and total organic carbon (TOC) removal efficiencies were found to be 97% and 79%, respectively. The reuse and recovery potential of TiO2 was studied with continuous recycling. The major intermediates during photodegradation of PHE were found to be phenanthrenequinone, phenanthenol and fluorine. This study also includes an investigation of membrane fouling caused by hydrophilic nano TiO2. The cake layer observed on the membrane surface was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive spectroscopy (EDS). In addition, the effect of operating parameters such as pH and permeate flux on membrane fouling were also investigated. Low permeate flux and alkaline conditions reduced membrane fouling.
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Affiliation(s)
- C Nirmala Rani
- Centre for Environmental Studies, Anna University, Chennai 600025, India E-mail:
| | - S Karthikeyan
- Centre for Environmental Studies, Anna University, Chennai 600025, India E-mail:
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44
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Cotillas S, Clematis D, Cañizares P, Carpanese MP, Rodrigo MA, Panizza M. Degradation of dye Procion Red MX-5B by electrolytic and electro-irradiated technologies using diamond electrodes. CHEMOSPHERE 2018; 199:445-452. [PMID: 29453071 DOI: 10.1016/j.chemosphere.2018.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/30/2018] [Accepted: 02/01/2018] [Indexed: 06/08/2023]
Abstract
This work focuses on the treatment of synthetic wastewater polluted with dye Procion Red MX-5B by different Electrochemical Advanced Oxidation Processes (EAOP) based on diamond anodes. The influence of the current density and the supporting electrolyte has been studied on dye removal and total mineralization of the organic matter. Results show that electrolysis with diamond electrodes is a suitable technology for an efficient degradation of dye. Nonetheless, the process efficiency increases when using chloride as supporting electrolyte because of the electrochemical generation of hypochlorite in wastewater which significantly contribute to dye removal. On the contrary, the total mineralization of the organic matter is more efficient in sulfate media. In this case, large amounts of peroxodisulfate are electrogenerated, favoring the complete removal of total organic carbon (TOC). On the other hand, lower current densities (10 mA cm-2) lead to a more efficient removal of both dye and TOC due to the mass transfer limitations of the technology. Finally, the coupling of UV light irradiation or ultrasound to electrolysis significantly improves the process performance, being photoelectrolysis the most efficient technology for the treatment of wastewater polluted with Procion Red MX-5B. This fact is due to the potential production of free chlorine or sulfate radicals that takes place by the activation of the electrogenerated oxidants. These species are more reactive than oxidants and, therefore, they quickly attack the organic matter present in wastewater.
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Affiliation(s)
- Salvador Cotillas
- Chemical Engineering Department, School of Industrial Engineering, University of Castilla-La Mancha, 02071, Albacete, Spain
| | - Davide Clematis
- University of Genoa, Department of Civil, Chemical and Environmental Engineering, P.le J.F. Kennedy 1, Genova, 16129, Italy
| | - Pablo Cañizares
- Chemical Engineering Department, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13005, Ciudad Real, Spain
| | - Maria Paola Carpanese
- University of Genoa, Department of Civil, Chemical and Environmental Engineering, P.le J.F. Kennedy 1, Genova, 16129, Italy
| | - Manuel A Rodrigo
- Chemical Engineering Department, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13005, Ciudad Real, Spain
| | - Marco Panizza
- University of Genoa, Department of Civil, Chemical and Environmental Engineering, P.le J.F. Kennedy 1, Genova, 16129, Italy.
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Pan X, Yan L, Qu R, Wang Z. Degradation of the UV-filter benzophenone-3 in aqueous solution using persulfate activated by heat, metal ions and light. CHEMOSPHERE 2018; 196:95-104. [PMID: 29291519 DOI: 10.1016/j.chemosphere.2017.12.152] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
The goals of this study were to bring forward new data and insights into the effect of activation methods, operational variables and reaction pathways during sulfate radicals-based oxidation of benzophenone-3 (BP-3) in aqueous solution. Heat, transition metal ions (Fe2+, Cu2+, Co2+), UV and visible light irradiation were used to activate persulfate (PS) to degrade BP-3. The results showed that these three activation methods can remarkably enhance BP-3 removal efficiency. Under the conditions of [BP-3]0: [PS]0 = 1: 500, pH = 7.0, and 40 °C, complete removal of BP-3 (1.31 μM) was observed in 3 h. In the pH range of 3.0-9.0, the degradation of BP-3 decreased with increasing pH. Increasing the PS dosage accelerated the reaction, while the presence of humic acid (HA) significantly inhibited the efficiency of BP-3 removal. Based on electron paramagnetic resonance (EPR) and radical quenching studies, sulfate and hydroxyl radicals contributed to the oxidation process. According to the evolution of BP-3 and its 7 by-products, as well as frontier electron densities (FED) calculation, two routes were proposed involving hydroxylation, demethylation and direct oxidation. On the whole, this work is a unique contribution to the systematic elucidation of BP-3 removal by PS.
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Affiliation(s)
- Xiaoxue Pan
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
| | - Liqing Yan
- Environmental Engineering School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0373, USA
| | - Ruijuan Qu
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China.
| | - Zunyao Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
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Nafees M, Ali S, Naveed M, Rizwan M. Efficiency of biogas slurry and Burkholderia phytofirmans PsJN to improve growth, physiology, and antioxidant activity of Brassica napus L. in chromium-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:6387-6397. [PMID: 29249026 DOI: 10.1007/s11356-017-0924-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 12/03/2017] [Indexed: 06/07/2023]
Abstract
Contamination of soil is a major problem globally with colligated danger for ecosystem and human health. Chromium (Cr) is a toxic heavy metal and caused harmful effect on growth and development of plants. Phytostabilization reduced the mobility of heavy metals with addition of amendments which can significantly decrease metal solubility in soil. Phytostabilization can be achieved by application of biogas slurry (BGS) and endophytic bacteria as amendments in the contaminated soils. The present study revealed that the Burkholderia phytofirmans PsJN and BGS improved the growth, physiology, and antioxidant activity and reduced Cr uptake under a pot experiment spiked with Cr (20 mg kg-1 soil). The experiment was designed under completely randomized design, four treatments with three replications in normal and Cr-contaminated soil. The inoculation of endophytic bacteria improved the growth and physiology of Brassica. This study showed that the inoculation of endophytic bacteria stabilized the Cr levels in soil and minimized the uptake by the plant shoots and roots in BGS-amended soil. Similarly, activity of antioxidants such as catalase (CAT), reduced glutathione (GSH), glutathione peroxidase (GSH-Px), and glutathione s-transferase (GST) was decreased to normal with combined treatment of BGS and endophytic bacteria in Cr-stressed soil. Overall, the best results were analyzed by combined treatment of BGS and endophytic bacteria to improve growth, physiology, and antioxidant activity of Brassica and immobilize Cr in soil. Moreover, results emphasized the need to use BGS alone or in combination with endophytic bacteria to optimize crop performance, stabilize Cr concentration, and improve environmental efficiency.
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Affiliation(s)
- Muhammad Nafees
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Allama Iqbal Road, Faisalabad, 38000, Pakistan.
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Muhammad Naveed
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Allama Iqbal Road, Faisalabad, 38000, Pakistan
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Adewuyi YG, Sakyi NY, Arif Khan M. Simultaneous removal of NO and SO 2 from flue gas by combined heat and Fe 2+ activated aqueous persulfate solutions. CHEMOSPHERE 2018; 193:1216-1225. [PMID: 29874751 DOI: 10.1016/j.chemosphere.2017.11.086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 11/13/2017] [Accepted: 11/17/2017] [Indexed: 06/08/2023]
Abstract
The use of advanced oxidation processes (AOPs) to integrate flue gas treatments for SO2, NOx and Hg0 into a single process unit is rapidly gaining research attention. AOPs are processes that rely on the generation of mainly the hydroxyl radical. This work evaluates the effectiveness of the simultaneous removal of NO and SO2 from flue gas utilizing AOP induced by the combined heat and Fe2+ activation of aqueous persulfate, and elucidates the reaction pathways. The results indicated that both SO2 in the flue gas and Fe2+ in solution improved NO removal, while the SO2 is almost completely removed. Increased temperature led to increase in NO removal in the absence and presence of both Fe2+ and SO2, and in the absence of either SO2 or Fe2+, but the enhanced NO removal due to the presence of SO2 alone dominated at all temperatures. The removal of NO increased from 77.5% at 30 °C to 80.5% and 82.3% at 50 °C and 70 °C in the presence of SO2 alone, and from 35.3% to 62.7% and 81.2%, respectively, in the presence of Fe2+ alone. However, in the presence of both SO2 and Fe2+, NO conversion is 46.2% at 30 °C, increased only slightly to 48.2% at 50 °C; but sharply increased to 78.7% at 70 °C compared to 63.9% for persulfate-only activation. Results suggest NO removal in the presence of SO2 is equally effective by heat-only or heat-Fe2+ activation as the temperature increases. The results should be useful for future developments of advanced oxidation processes for flue gas treatments.
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Affiliation(s)
- Yusuf G Adewuyi
- Chemical, Biological and Bio Engineering Department, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA.
| | - Nana Y Sakyi
- Chemical, Biological and Bio Engineering Department, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA
| | - M Arif Khan
- Chemical, Biological and Bio Engineering Department, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA
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48
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Liu Y, Liu Z, Wang Y, Yin Y, Pan J, Zhang J, Wang Q. Simultaneous absorption of SO 2 and NO from flue gas using ultrasound/Fe 2+/heat coactivated persulfate system. JOURNAL OF HAZARDOUS MATERIALS 2018; 342:326-334. [PMID: 28846919 DOI: 10.1016/j.jhazmat.2017.08.042] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/10/2017] [Accepted: 08/15/2017] [Indexed: 06/07/2023]
Abstract
A novel process on simultaneous absorption of SO2 and NO from flue gas using ultrasound (US)/Fe2+/heat coactivated persulfate system was proposed. The influencing factors, active species, products and mechanism of SO2 and NO removal were investigated. The results indicate that US enhances NO removal due to enhancement of mass transfer and chemical reaction. US of 28kHz is more effective than that of 40kHz. NO removal efficiency increases with increasing persulfate concentration, ultrasonic power density and Fe2+ concentration (at high persulfate concentration). Solution pH, solution temperature and Fe2+ concentration (at low persulfate concentration) have double effect on NO removal. SO2 is completely removed in most of tested removal systems, except for using water absorption. US, Fe2+ and heat have a synergistic effect for activating persulfate to produce free radicals, and US/Fe2+/heat coactivated persulfate system achieves the highest NO removal efficiency. ·OH and SO4-· play a leading role for NO oxidation, and persulfate only plays a complementary role for NO oxidation.
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Affiliation(s)
- Yangxian Liu
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Ziyang Liu
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yan Wang
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yanshan Yin
- Key Laboratory of Efficient & Clean Energy Utilization of Education Department of Hunan Province, Changsha University of Science & Technology, Changsha 410000, China
| | - Jianfeng Pan
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jun Zhang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing, 210096, China
| | - Qian Wang
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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49
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Wu Z, Yuste-Córdoba FJ, Cintas P, Wu Z, Boffa L, Mantegna S, Cravotto G. Effects of ultrasonic and hydrodynamic cavitation on the treatment of cork wastewater by flocculation and Fenton processes. ULTRASONICS SONOCHEMISTRY 2018; 40:3-8. [PMID: 28438402 DOI: 10.1016/j.ultsonch.2017.04.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 04/12/2017] [Accepted: 04/12/2017] [Indexed: 06/07/2023]
Abstract
This paper reports that ultrasonic (US) and hydrodynamic cavitation (HC) are efficient strategies for the environmental remediation of cork wastewater (CW). It is necessary to remove toxic, inhibitory or refractory organic matter from CW using physical and chemical techniques (pre-treatment) prior to performing conventional biological treatment. After this biological treatment, it is also critical to further decontaminate (post-treatment) in order to meet the discharge limitation. The pre-treatment of diluted CW using Fenton oxidation (FE) alone led to COD and polyphenol (PP) removal values of 30% and 61%, respectively, while HC and US resulted in 83-90% increases in COD reduction and 26-33% increases in PP reduction. Whereas 55% and 91% COD and PP removal were achieved using flocculation (Floc) alone, COD elimination was increased by a further 7-18% under HC and US. No noticeable improvement in PP elimination was observed. US did not enhance the Floc decontamination of the original concentrated CW, however, considerable quantities of white biofilm were surprisingly generated on the CW surface after the pre-treatment, thus indicating the improvement of biodegradability of the resulting liquid. In fact, the post-treatment stage, using FE alone after having filtered the biofilms, led to reductions of 53% in COD and 90% in PP. The HC and US protocols resulted in 26-34% increases in COD elimination. HC further enhanced PP elimination caused by FE, while US resulted in lower levels of PP elimination.
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Affiliation(s)
- Zhilin Wu
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, I-10125 Turin, Italy; Nanjing Institute of Environmental Science of the Ministry of Environmental Protection of China, Jiangwangmiao Str. 8, Nanjing, China
| | - Francisco J Yuste-Córdoba
- CICYTEX/Instituto del Corcho, la Madera y el Carbón Vegetal, C/Pamplona s/n, 06800 Mérida, Badajoz, Spain
| | - Pedro Cintas
- Dpto. Quimica Organica e Inorganica, Facultad de Ciencias-UEX and IACYS-Unidad de Química Verde y Desarrollo Sostenible, E-06006 Badajoz, Spain
| | - Zhansheng Wu
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, I-10125 Turin, Italy; School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
| | - Luisa Boffa
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, I-10125 Turin, Italy
| | - Stefano Mantegna
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, I-10125 Turin, Italy
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, I-10125 Turin, Italy.
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50
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Xing Y, Yan B, Lu P, Cui X, Li L, Wang M. Purification of Hg 0 from flue gas by wet oxidation method and its mechanism: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:26310-26323. [PMID: 29063396 DOI: 10.1007/s11356-017-0480-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/12/2017] [Indexed: 06/07/2023]
Abstract
The vast majority of Hg2+ can be removed while elemental mercury (Hg0) can hardly be removed due to its characteristic of high volatility and insolubility in water. Till now, how to oxidize Hg0 to Hg2+ is the key for the purification of Hg0, especially when there are others pollutants, such as HCl, SO2, and NOx. In this review, the method and mechanism of Hg0 purification from flue gas by H2O2, KMnO4, NaClO2, and O3 are reviewed comprehensively. It is concluded that the oxidation of Hg0 mainly depends on the electronic supply efficiency from the solution. The Fenton reagent, composed of H2O2 and metal cations, is superior to O3 and the solution of KMnO4 and NaClO2. Moreover, HCl, SO2, and NOx in the flue gas can influence the oxidation and purification mechanism of Hg0. It is found that HCl in flue gas had obvious auxo-action on the oxidation of mercury, and SO2 and NOx have different effects on the oxidation of Hg0 with the change of compositions and concentration of pollutants in the flue gas. In general, SO2 and NOx can slightly promote the oxidation of Hg0 due to the synergistic effect.
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Affiliation(s)
- Yi Xing
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, 100083, China
| | - Bojun Yan
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, 100083, China
| | - Pei Lu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
- Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, 100083, China.
| | - Xiaoxu Cui
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Liuliu Li
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Mengsi Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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