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Zhu Y, Cao Y, Fu B, Wang C, Shu S, Zhu P, Wang D, Xu H, Zhong N, Cai D. Waste milk humification product can be used as a slow release nano-fertilizer. Nat Commun 2024; 15:128. [PMID: 38167856 PMCID: PMC10761720 DOI: 10.1038/s41467-023-44422-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
The demand for milk has increased globally, accompanied by an increase in waste milk. Here, we provide an artificial humification technology to recycle waste milk into an agricultural nano-fertilizer. We use KOH-activated persulfate to convert waste milk into fulvic-like acid and humic-like acid. We mix the product with attapulgite to obtain a slow-release nano fulvic-like acid fertilizer. We apply this nano-fertilizer to chickweeds growing in pots, resulting in improved yield and root elongation. These results indicate that waste milk could be recycled for agricultural purposes, however, this nano-fertilizer needs to be tested further in field experiments.
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Affiliation(s)
- Yanping Zhu
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Yuxuan Cao
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Bingbing Fu
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Chengjin Wang
- Department of Civil Engineering, University of Manitoba, Winnipeg, MB, R3T 5V6, Canada
| | - Shihu Shu
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Pengjin Zhu
- Guangxi Subtropical Crops Research Institute, Nanning, 530000, People's Republic of China
| | - Dongfang Wang
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - He Xu
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Naiqin Zhong
- Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, People's Republic of China
| | - Dongqing Cai
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China.
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2
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dela Rosa FM, Popović M, Papac Zjačić J, Radić G, Kraljić Roković M, Kovačić M, Farré MJ, Genorio B, Lavrenčič Štangar U, Kušić H, Lončarić Božić A, Petrović M. Visible-Light Activation of Persulfate or H 2O 2 by Fe 2O 3/TiO 2 Immobilized on Glass Support for Photocatalytic Removal of Amoxicillin: Mechanism, Transformation Products, and Toxicity Assessment. Nanomaterials (Basel) 2022; 12:4328. [PMID: 36500951 PMCID: PMC9738309 DOI: 10.3390/nano12234328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Fe2O3/TiO2 nanocomposites were fabricated via a facile impregnation/calcination technique employing different amounts iron (III) nitrate onto commercial TiO2 (P25 Aeroxide). The as-prepared Fe2O3/TiO2 nanocomposites were characterized by X-ray diffraction (XRD), Raman spectroscopy (RS), scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDXS), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller analysis (BET), electron impedance spectroscopy (EIS), photoluminescence spectroscopy (PL), and diffuse reflectance spectroscopy (DRS). As a result, 5% (w/w) Fe2O3/TiO2 achieved the highest photocatalytic activity in the slurry system and was successfully immobilized on glass support. Photocatalytic activity under visible-light irradiation was assessed by treating pharmaceutical amoxicillin (AMX) in the presence and absence of additional oxidants: hydrogen peroxide (H2O2) and persulfate salts (PS). The influence of pH and PS concentration on AMX conversion rate was established by means of statistical planning and response surface modeling. Results revealed optimum conditions of [S2O82-] = 1.873 mM and pH = 4.808; these were also utilized in presence of H2O2 instead of PS in long-term tests. The fastest AMX conversion possessing a zero-order rate constant of 1.51 × 10-7 M·min-1 was achieved with the photocatalysis + PS system. The AMX conversion pathway was established, and the evolution/conversion of formed intermediates was correlated with the changes in toxicity toward Vibrio fischeri. Reactive oxygen species (ROS) scavenging was also utilized to investigate the AMX conversion mechanism, revealing the major contribution of photogenerated h+ in all processes.
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Affiliation(s)
- Francis M. dela Rosa
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
- Catalan Institute for Water Research (ICRA), C/Emili Grahit, 101, 17003 Girona, Spain
- Faculty of Sciences, University of Girona, 17071 Girona, Spain
| | - Marin Popović
- Department of Safety and Protection, Karlovac University of Applied Sciences, Trg J.J. Strossmayera 9, 47000 Karlovac, Croatia
| | - Josipa Papac Zjačić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Gabrijela Radić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Marijana Kraljić Roković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Marin Kovačić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - María José Farré
- Catalan Institute for Water Research (ICRA), C/Emili Grahit, 101, 17003 Girona, Spain
| | - Boštjan Genorio
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Vecna pot 113, 1000 Ljubljana, Slovenia
| | - Urška Lavrenčič Štangar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Vecna pot 113, 1000 Ljubljana, Slovenia
| | - Hrvoje Kušić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Ana Lončarić Božić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Mira Petrović
- Catalan Institute for Water Research (ICRA), C/Emili Grahit, 101, 17003 Girona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluis Companys 23, 08010 Barcelona, Spain
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3
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Bai M, Liu Z, Zhan L, Liu Z, Fan Z. A comparative study of removal efficiency of organic contaminant in landfill leachate-contaminated groundwater under micro-nano-bubble and common bubble aeration. Environ Sci Pollut Res Int 2022; 29:87534-87544. [PMID: 35821314 DOI: 10.1007/s11356-022-21805-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Landfill leachate-contaminated groundwater is widespread all over the world. In order to study the organic contaminant removal efficiency of landfill leachate-contaminated groundwater under oxygen micro-nano-bubble (MNB) aeration, a series of lab-scale experiments of oxygen MNB aeration as well as common bubble (CB) aeration were conducted. Firstly, the difference in mass transfer, microbial activity enhancement, and contaminant removal efficiency between MNB and CB aeration was estimated. Then, the composition variations of dissolved organic matter (DOM) in groundwater treated by MNB or CB aeration were characterized by ultraviolet-visible (UV-VIS) absorption spectrum and fluorescence excitation-emission matrix (EEM). The test results showed that the oxygen utilization efficiency and volumetric oxygen transfer coefficient of MNB aeration were 10 and 50 times that of oxygen CB aeration, respectively. On the 30th day after MNB aeration, the dehydrogenase activity (DHA) of groundwater increased by 101.25%. Compared with CB aeration, the chemical oxygen demand (COD), 5-day biochemical oxygen demand (BOD5), and ammonia nitrogen removal efficiency under MNB aeration increased by 29.72%, 13.43%, and 138.59%, respectively. With the biodegradation effect of MNB aeration, a large number of protein-like and soluble microbial by-product substances were degraded, and humic and fulvic acid-like substances were degraded to a certain level. Oxygen MNB aeration played a chemical oxidation effect while enhancing the biodegradation of groundwater, and it was an energy-efficient landfill leachate-contaminated groundwater treatment method.
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Affiliation(s)
- Mei Bai
- Jiangsu Key Laboratory of Urban Underground Engineering and Environmental Safety, Southeast University, Nanjing, 211189, Jiangsu Province, China
| | - Zhibin Liu
- Jiangsu Key Laboratory of Urban Underground Engineering and Environmental Safety, Southeast University, Nanjing, 211189, Jiangsu Province, China.
| | - Liangtong Zhan
- Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education, Zhejiang University, Zhejiang Province, Hangzhou, 310058, China
| | - Zhu Liu
- Jiangsu Key Laboratory of Urban Underground Engineering and Environmental Safety, Southeast University, Nanjing, 211189, Jiangsu Province, China
| | - Zhanhuang Fan
- Cecep Dadi (Hangzhou) Environmental Remediation Co., Ltd., Zhejiang Province, Hangzhou, 310020, China
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Moradian F, Ramavandi B, Jaafarzadeh N, Kouhgardi E. Activation of periodate using ultrasonic waves and UV radiation for landfill leachate treatment. Environ Sci Pollut Res Int 2022; 29:90338-90350. [PMID: 35867295 DOI: 10.1007/s11356-022-21997-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
In the present work, saline leachate of the Bushehr coastal city (Iran) was purified using the ultraviolet/ultrasonication wave/periodate process. The initial TDS and TOC values of the leachate studied were 7390 mg/L and 975 mg/L, respectively. During the effect of various parameters on leachate purification, the experiments were optimized at pH 3, oxidizer concentration of 4 mM, and treatment time of 120 min. The initial BOD5/COD ratio of 0.66 was reduced to 0.42 at the end of the purification time (120 min). After leachate treatment under optimal conditions, the amount of BOD5, COD, and UV254 were 451.5 mg/L, 1072 mg/L, and 12.69 cm-1, respectively. Concentrations of heavy metals in crude leachate by ICP-OES were checked. Also, the concentration of organic compounds before and after purification was determined using GC-Mass. The leachate purification kinetics followed the first-order model using the designed method. Based on the COD factor, the system energy consumption for leachate treatment was calculated to be 11.4 kWh/m3. The results showed that the system explored (UV/US/IO4-) can effectively purify high salinity waste leachate.
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Affiliation(s)
- Fatemeh Moradian
- Department of Environment, Bushehr Branch, Islamic Azad University, Bushehr, Iran
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Neemat Jaafarzadeh
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Esmaeil Kouhgardi
- Department of Environment, Bushehr Branch, Islamic Azad University, Bushehr, Iran
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5
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Wang R, Li X, Zhang R, Ren X, Guo W. Exploiting layered double hydroxide with modulated atomic motifs enables enhanced peroxydisulfate activation. Sep Purif Technol 2022; 301:121961. [DOI: 10.1016/j.seppur.2022.121961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Crispim AC, de Araújo DM, Martínez-Huitle CA, Souza FL, Dos Santos EV. Application of electro-Fenton and photoelectro-Fenton processes for the degradation of contaminants in landfill leachate. Environ Res 2022; 213:113552. [PMID: 35710024 DOI: 10.1016/j.envres.2022.113552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Worldwide, most solid waste ends its life in landfill sites, which have a significant environmental impact in several respects. In particular, rainfall over landfill sites results in the production of an aqueous leachate containing compounds having low biodegradability, high toxicity, and a high organic load. For this reason, this study aims to investigate the applicability of electro-Fenton (EF) and photoelectro-Fenton (PEF) processes as alternative for treating a local landfill effluent with high organic content (chemical oxygen demand (COD) = 2684.7 mg-O2 L -1) in a continuous-flow reactor (using, for first time, this kind of system with higher electrodes area of 35 cm2) using boron-doped diamond anode (Nb/BDD) and a carbon felt cathode (FC) electrodes. The effects of current density j (30, 60 and 90 mA cm-2) and UV radiation wavelength (UVA and UVC) were studied to evaluate the treatment efficiency as well as the energy consumption. Results clearly showed that, the best efficiencies removing organic matter, in terms of COD, were about 66%, 68% and 89% with an energy consumption of only 19.41, 17.61 and 17.59 kWh kg COD-1 for EF, PEF-UVA and PEF-UVC respectively, at 90 mA cm-2 after 4 h of operation. The treatment of this kind of effluent produced organic and inorganic by-products, the acetic and formic acids as well as NO2-, NO3-, and NH4+, being assessed their concentrations.
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Affiliation(s)
- Alana C Crispim
- Laboratório de Eletroquímica Ambiental e Aplicada, Instituto de Química, Universidade Federal Do Rio Grande Do Norte, Lagoa Nova, CEP 59.072-900, RN, Brazil
| | - Danyelle M de Araújo
- Laboratório de Eletroquímica Ambiental e Aplicada, Instituto de Química, Universidade Federal Do Rio Grande Do Norte, Lagoa Nova, CEP 59.072-900, RN, Brazil
| | - Carlos A Martínez-Huitle
- Laboratório de Eletroquímica Ambiental e Aplicada, Instituto de Química, Universidade Federal Do Rio Grande Do Norte, Lagoa Nova, CEP 59.072-900, RN, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, UNESP, P.O. Box 355, 14800 900, Araraquara, SP, Brazil
| | - Fernanda L Souza
- National Nanotechnology Laboratory for Agriculture, Brazilian Agriculture Research Corporation (Embrapa), XV de Novembro Street, 1452, São Carlos, Brazil.
| | - Elisama V Dos Santos
- Laboratório de Eletroquímica Ambiental e Aplicada, Instituto de Química, Universidade Federal Do Rio Grande Do Norte, Lagoa Nova, CEP 59.072-900, RN, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, UNESP, P.O. Box 355, 14800 900, Araraquara, SP, Brazil.
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7
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Zhu M, Chen X, Tang Y, Hou S, Yu Y, Fan X. Piezo-promoted persulfate activation by SrBi 2B 2O 7 for efficient sulfadiazine degradation from water. J Hazard Mater 2022; 437:129359. [PMID: 35753295 DOI: 10.1016/j.jhazmat.2022.129359] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Combining piezoelectric effect and persulfate (PS) activation is a newly developed strategy for refractory emerging contaminants removal. In this work, borate SrBi2B2O7 (SBBO) is firstly developed as a piezoelectric material to piezo-assisted activation of PS for the removal of sulfadiazine (SDZ) under ultrasonic irradiation (US). SDZ could be efficiently degraded by 85.61 % in the system of PS/SBBO/US with a pseudo-first-order rate constant of 0.0520 min-1, which is faster than that in the systems of PS/SBBO (0.0210 min-1), SBBO/US (0.0041 min-1), PS/US (0.0074 min-1), and PS/BaTiO3/US (0.0120 min-1). The excellent degradation performance of the PS/SBBO/US system is mainly attributed to the piezoelectric effect of the SBBO which plays an important role in PS activation and accelerating reaction. Two oxidation processes, radical process (•O2- and •SO4-) and non-radical process (1O2 and electron transfer), exist during the SDZ degradation. The system of PS/SBBO/US also attains excellent removal efficiency in different SDZ contained water bodies. The possible degradation pathways mainly include cleavage of bonds, ring-opening, and hydroxylation process, and the toxicity of intermediates was predicted by T.E.S.T. software. This study provides new insight into piezoelectric catalysis associated with PS activation for SDZ removal.
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Affiliation(s)
- Mude Zhu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China
| | - Xueqin Chen
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China
| | - Yi Tang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China
| | - Sen Hou
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China
| | - Yang Yu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China
| | - Xiaoyun Fan
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China.
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Cheng Z, Tao H, Zhang J, Wang S, Yang Y, Li J, Wu D, Ma Z. KBH4 Modification of Fe3O4 Core Shell Carbon Microspheres Promoted Persulfate Activation for Organic Contaminants degradation: Factors and Mechanism. Catal Letters 2022. [DOI: 10.1007/s10562-022-04143-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Macías-Vargas JA, Díaz-Ramírez ML, García-Mejía TA, Ramírez-Zamora RM. Enhanced ciprofloxacin degradation via photo-activated persulfate using the effluent of a large wastewater treatment plant. Top Catal 2022. [DOI: 10.1007/s11244-022-01666-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xiao J, Wang C, Feng BQ, Liu TY, Jia SY, Ren HT, Liu Y, Wu SH, Han X. Mediation of water-soluble oligoaniline by phenol in the aniline-persulfate system under alkaline conditions. Phys Chem Chem Phys 2022; 24:10394-10407. [PMID: 35441182 DOI: 10.1039/d1cp05983a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although synthesis of oligoaniline (OANI) by persulfate and aniline has been investigated in the recent years, the impact of phenol on the synthesized soluble OANI is still not clear. In this study, our results indicate that phenol and pH mediate the production of the blue water-soluble OANI (OANIblue) in the reaction between sodium persulfate (SPS) and aniline under alkaline conditions, and the yields of OANIblue increase with increasing concentrations of phenol and pH values. Quenching experiments rule out the contributions of SO4˙- and ˙OH to aniline oxidation and imply that the non-radical activation of SPS is an important pathway in the formation of OANIblue. MALDI-TOF-MS analysis indicates that phenol apparently inhibits the polymerization degree of aniline in that the molecular weights of OANIblue gradually decrease from 1586.4 to 684.6 when phenol is increased from 0 to 2.0 mM. FTIR and Raman analyses confirm the structure of aniline oligomers in OANIblue and indicate that phenol inhibits the phenazine-like structure in OANIblue and facilitates the transformation of benzenoid rings to quinoid rings in the oxidation products. However, simultaneous activation of SPS by phenol and aniline is likely to occur in the reaction system with the formation of PhNH˙, as indicated by DFT calculations. The high scavenging reactivity of phenol towards both PhNH2˙+ and PhNH˙ implies that PhNH2˙+ and PhNH˙ are not the intermediates in the formation of OANIblue. DFT calculations also reveal that apart from the one-electron transfer pathway between aniline and SPS, the two-electron transfer pathway is also likely to occur in the presence of phenol, resulting in the formation of PhNH+/PhN˙˙ without producing PhNH2˙+ and PhNH˙. The produced PhNH+/PhN˙˙ intermediates then couple with aniline, PhNH+, aminophenyl sulfate and its hydrolysate to form dimers, trimers, oligomers, and eventually OANIblue. This study not only describes a novel method to prepare water-soluble OANI, but also gives new insight on the importance of phenol in the production of OANIblue.
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Affiliation(s)
- Jing Xiao
- Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Cong Wang
- School of Safety Supervision, North China Institute of Science and Technology, No. 467 Academy Street, Sanhe Yanjiao Development Zone, Langfang 065201, P. R. China
| | - Bai-Qi Feng
- Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Tian-Yu Liu
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Shao-Yi Jia
- Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Hai-Tao Ren
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Yong Liu
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Song-Hai Wu
- Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China.
| | - Xu Han
- Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China.
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11
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Chang YC, Chen KF, Chen TY, Chen HH, Chen WY, Mao YC. Development of novel persulfate tablets for passive trichloroethylene (TCE)-contaminated groundwater remediation. Chemosphere 2022; 295:133906. [PMID: 35143855 DOI: 10.1016/j.chemosphere.2022.133906] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/01/2021] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
In this study, a biodegradable binder, hydroxypropyl methyl cellulose (HPMC), was used for the first time to mix with persulfate powder for developing novel persulfate-releasing tablets to remediate trichloroethylene (TCE)-contaminated groundwater. To obtain feasible parameters for the preparation of persulfate tablets, different pressures, HPMC/tablet mass ratios, and persulfate dosages were evaluated. The results showed that the persulfate tablet released 2868 mg-persulfate/day for 12 days under the optimal manufacturing parameters of HPMC/tablet mass ratio of 0.5 and pressure of 4.90 × 108 N/m2. Persulfate diffusion and gel layer erosion were dominant mechanisms for controlling the persulfate released in water. The persulfate release time and rate can be controlled by adjusting the persulfate dosage at the optimal HPMC/tablet ratio. In the column experiment, TCE with an initial concentration of 70 mg/L reached 55% removal efficiency by the tablet, which showed that the developed tablet was capable of degrading highly concentrated TCE. The results of electron spin resonance (ESR) spectroscopy showed that both SO4-· and ·OH were responsible for the oxidation of TCE. During 150 days of incubation, the biodegrading efficiency of HPMC by microbes in soil and activated sludge was 67% and 80%, respectively, under aerobic conditions, while 58% of HPMC was removed by soil bacteria under anaerobic conditions. The results showed that persulfate tablets could be used as a passive groundwater remediation system. There is no waste generated after persulfate is completely released during groundwater remediation. The developed persulfate tablets are environmentally friendly and meet the green remediation aspect.
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Affiliation(s)
- Yu-Chen Chang
- Department of Civil Engineering, National Chi Nan University, Puli, Nantou, 545301, Taiwan
| | - Ku-Fan Chen
- Department of Civil Engineering, National Chi Nan University, Puli, Nantou, 545301, Taiwan.
| | - Ting-Yu Chen
- Department of Landscape Architecture, National Chin-Yi University of Technology, Taiping, Taichung, 411030, Taiwan
| | - Hung-Hsiang Chen
- Department of Civil Engineering, National Chi Nan University, Puli, Nantou, 545301, Taiwan
| | - Wei-Yu Chen
- Department of Civil Engineering, National Chi Nan University, Puli, Nantou, 545301, Taiwan
| | - Ying-Chih Mao
- Department of Civil Engineering, National Chi Nan University, Puli, Nantou, 545301, Taiwan
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Yu D, Pei Y, Ji Z, He X, Yao Z. A review on the landfill leachate treatment technologies and application prospects of three-dimensional electrode technology. Chemosphere 2022; 291:132895. [PMID: 34780739 DOI: 10.1016/j.chemosphere.2021.132895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/30/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
With the expansion of urbanisation, the total amount of solid waste produced by urban residents has been increasing, and the problem of municipal solid waste disposal has also been aggravated. Landfill leachate treatment technologies could be divided into three categories: biological, physical and advanced oxidation treatment technology. Among them, advanced oxidation treatment technology has a good effect on the treatment of landfill leachate with little secondary pollution and has excellent application potential. Three-dimensional (3D) electrode technology, as a new type of advanced oxidation technology, could remove refractory pollutants in water and has attracted considerable attention. This article aims to (1) compare existing landfill leachate treatment technologies, (2) summarise 3D electrode technology application scenarios, (3) discuss the advantages of 3D electrode technology in landfill leachate treatment and (4) look ahead the future directions of 3D electrode technology in landfill leachate treatment. We hope that this article will be helpful to researchers who are interested in the field of landfill leachate treatment.
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Affiliation(s)
- Dayang Yu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China
| | - Yuansheng Pei
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Zehua Ji
- School of Environment, Tsinghua University, Beijing, 100083, China
| | - Xudan He
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, 100089, China
| | - Zhiliang Yao
- School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China.
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Wang Q, Yan Q, Zhao Y, Ren J, Ai N. Preparation of Amine-Modified Cu-Mg-Al LDH Composite Photocatalyst. Nanomaterials (Basel) 2021; 12:nano12010127. [PMID: 35010077 PMCID: PMC8746517 DOI: 10.3390/nano12010127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/18/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022]
Abstract
Cu-Mg-Al layered double hydroxides (LDHs) with amine modification were prepared by an organic combination of an anionic surfactant-mediated method and an ultrasonic spalling method using N-aminoethyl-γ-aminopropyltrimethoxysilane as a grafting agent. The materials were characterized by elemental analysis, XRD, SEM, FTIR, TGA, and XPS. The effects of the Cu2+ content on the surface morphology and the CO2 adsorption of Cu-Mg-Al LDHs were investigated, and the kinetics of the CO2 adsorption and the photocatalytic reduction of CO2 were further analyzed. The results indicated that the amine-modified method and appropriate Cu2+ contents can improve the surface morphology, the increase amine loading and the free-amino functional groups of the materials, which were beneficial to CO2 capture and adsorption. The CO2 adsorption capacity of Cu-Mg-Al N was 1.82 mmol·g−1 at 30 °C and a 0.1 MPa pure CO2 atmosphere. The kinetic model confirmed that CO2 adsorption was governed by both the physical and chemical adsorption, which could be enhanced with the increase of the Cu2+ content. The chemical adsorption was suppressed, when the Cu2+ content was too high. Cu-Mg-Al N can photocatalytically reduce CO2 to methanol with Cu2+ as an active site, which can significantly improve the CO2 adsorption and photocatalytic conversion.
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Affiliation(s)
- Qining Wang
- National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Zhejiang University of Technology, Hangzhou 310014, China;
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Q.Y.); (Y.Z.)
| | - Quanwang Yan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Q.Y.); (Y.Z.)
- School of Biology and Chemical Engineering, Jiaxing University, Jiaxing 314001, China;
| | - Yu Zhao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Q.Y.); (Y.Z.)
- Sinochem Lantian Trading Co., Ltd., Hangzhou 310051, China
| | - Jie Ren
- School of Biology and Chemical Engineering, Jiaxing University, Jiaxing 314001, China;
| | - Ning Ai
- School of Biology and Chemical Engineering, Jiaxing University, Jiaxing 314001, China;
- Correspondence:
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15
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Chen G, Wu G, Li N, Lu X, Zhao J, He M, Yan B, Zhang H, Duan X, Wang S. Landfill leachate treatment by persulphate related advanced oxidation technologies. J Hazard Mater 2021; 418:126355. [PMID: 34329014 DOI: 10.1016/j.jhazmat.2021.126355] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/27/2021] [Accepted: 06/05/2021] [Indexed: 06/13/2023]
Abstract
Landfill leachate is produced from garbage decomposition with highly toxic and bio-refractory compounds, which poses serious harm to environmental security and human health. Thus, it is urgent to treat landfill leachate properly. Persulfate (PS) oxidation has attracted extensive attentions in terms of fast reaction speed, non-selectivity to target pollutants and thorough oxidation. In recent years, PS oxidation has been widely adopted for landfill leachate purification. However, the related results have been rarely summarized. In this review, the treatment of landfill leachate by PS oxidation system is discussed systematically including oxidants, activation modes and oxidation mechanisms. In addition, the current situation of PS oxidation system and other coupled systems for landfill leachate treatment is also summarized. Finally, the challenges and future research directions of landfill leachate treatment based on PS oxidation process are proposed. Meaningfully, this review will provide valuable references for the development of landfill leachate treatment process, promoting the application of advanced oxidation technology in landfill leachate treatment.
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Affiliation(s)
- Guanyi Chen
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China; Georgia Tech Shenzhen Institute, Tianjin University, Shenzhen 518071, China
| | - Guanyun Wu
- Tianjin International Engineering Institute, Tianjin University, Tianjin 300072, China
| | - Ning Li
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China.
| | - Xukai Lu
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China
| | - Jianhui Zhao
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
| | - Mengting He
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China
| | - Beibei Yan
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China
| | - Hongqiong Zhang
- College of Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
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16
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Wu C, Chen W, Gu Z, Li Q. A review of the characteristics of Fenton and ozonation systems in landfill leachate treatment. Sci Total Environ 2021; 762:143131. [PMID: 33129548 DOI: 10.1016/j.scitotenv.2020.143131] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 06/11/2023]
Abstract
The development and application of Fenton and ozonation systems in landfill leachate treatment over the last 20 years, and the current research status are reviewed in this paper, with an emphasis on the technical and economic characteristics of Fenton and ozonation systems used to treat different types of landfill leachate. To date, a total of 101 and 78 articles have been published regarding leachate treatment by Fenton and ozonation systems, respectively. These articles considered the use of two systems to treat aged leachate, biologically treated leachate and leachate comprising the concentrated solution resulting from reverse osmosis (RO). The oxidization mechanisms of the two systems used to treat landfill leachate significantly differed in terms of their optimal process parameters (e.g., initial pH value, reagent dosage, and reaction time) and removal efficiency. The Fenton and ozonation systems outperformed persulfate-based advanced oxidation technology in terms of their improved biodegradability of landfill leachate and engineering practicability. The cost of the reagents required to treat landfill leachate by Fenton and ozonation systems accounted for at least 85% of the total operating cost. In contrast to the ozonation system, the Fenton system was more cost-effective when both systems were used to treat the same type of landfill leachate. This study provides a theoretical basis for the operation of Fenton and ozonation systems and also offers technical support for landfill leachate disposal companies that opt to use these technologies.
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Affiliation(s)
- Chuanwei Wu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Weiming Chen
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Zhepei Gu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Qibin Li
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China.
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17
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Bai C, Liu Y, Wang C, Zhang XC, Wu JX, Ren HT, Han X. Conversion of aniline contaminant to valuable polyaniline polymers from wastewater under alkaline conditions. Molecular Catalysis 2021. [DOI: 10.1016/j.mcat.2021.111430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Moradian F, Ramavandi B, Jaafarzadeh N, Kouhgardi E. Effective treatment of high-salinity landfill leachate using ultraviolet/ultrasonication/ peroxymonosulfate system. Waste Manag 2020; 118:591-599. [PMID: 33010690 DOI: 10.1016/j.wasman.2020.09.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/11/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
Landfill leachate, as a complex medium with a high concentration of organic and mineral materials, is a serious problem for the environment. In the current study, the saline landfill leachate of Bushehr coastal city (Iran) was treated using ultraviolet/ultrasonic waves/peroxymonosulfate system. The initial TOC and TDS of the studied leachate was 915 mg/L and 7390 mg/L, respectively. The system had the maximum efficiency at conditions of pH 3, peroxymonosulfate (PMS) of 4 mM, and reaction time of 150 min. Based on the findings, the initial ratio of BOD5/COD (0.66) was reduced to 0.38 using the developed system. After treatment of the landfill leachate at the optimal condition, the values of COD, BOD5, and UV254 were reached to 983 mg/L, 348 mg/L, and 10.16 cm-1, respectively. The concentration of all studied elements (except Pb, As, and Ca) increased after purification. According to the GC-mass spectrometry, the molecular weight and concentration of organic matter in raw leachate were higher than that of the treated one. The studied system had an energy consumption value of 86 kW·h/m3 for the treatment of landfill leachate. The results confirm the effectiveness of the ultraviolet/ultrasonic waves/PMS system for the treatment of high saline landfill leachate.
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Affiliation(s)
- Fatemeh Moradian
- Department of Environment, Bushehr Branch, Islamic Azad University, Bushehr, Iran
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Neemat Jaafarzadeh
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Esmaeil Kouhgardi
- Department of Environment, Bushehr Branch, Islamic Azad University, Bushehr, Iran
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Wang J, Zheng W, Zhang Y, Song S, Chou IM, Hu M, Pan Z. Raman spectroscopic technique towards understanding the degradation of phenol by sodium persulfate in hot compressed water. Chemosphere 2020; 257:127264. [PMID: 32516671 DOI: 10.1016/j.chemosphere.2020.127264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/19/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Degradation of phenol by sodium persulfate (SPS) in hot compressed water (HCW) was investigated in a lab-built fused quartz tube reactor (FQTR) coupled with Raman spectroscopy system. The species of S2O82-, SO42-, HSO4-, SO32- and HSO3- in the reaction system were qualitatively and quantitatively analyzed by Raman spectroscopy. The hydrothermal stability of phenol and SPS at different temperature and the degradation of phenol by SPS were also studied. The results indicated that phenol was not stable in aqueous solution above 200 °C, and that only SO42- was generated in the hydrolysis of SPS at temperatures below 50 °C, and SO42- and HSO4- were generated at higher temperatures. The maximum conversion rate (90.93%) and mineralization efficiency (38.88%) of phenol by SPS was obtained at reaction temperature of 300 °C with 180 min reaction time. During the degradation of phenol by SPS, HSO4- was the main product and S∗ (not detected by Raman spectroscopy) exhibits a positive correlation with temperature. In addition, a degradation pathway of phenol by SPS was proposed. The degradation data for the kinetic analysis indicated that the reaction followed pseudo first-order kinetics, and the reaction rate constants (ks) were given as k50 °C = 0.0083 min-1, k100°C = 0.0197 min-1, k200 °C = 0.0498 min-1, k300 °C = 0.0619 min-1 and k400°C = 0.0505 min-1 at 30 min reaction. Moreover, the activation energy (12.580 kJ mol-1), the enthalpy change (9.064 kJ mol-1) and the entropy change (-222.104 J mol-1) of the reaction were also calculated.
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Affiliation(s)
- Junliang Wang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Weicheng Zheng
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Yuqing Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - I-Ming Chou
- CAS Key Laboratory of Experimental Study Under Deep-sea Extreme Conditions, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, Hainan, China
| | - Mian Hu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China.
| | - Zhiyan Pan
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China.
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20
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Yang C, Ren B, Wang D, Tang Q. Synthesis of Nano-Fe@NdFeB/AC magnetic catalytic particle electrodes and application in the degradation of 2,4,6-trichlorophenol by electro-assisted peroxydisulfate process. Environ Technol 2020; 41:2464-2477. [PMID: 30640565 DOI: 10.1080/09593330.2019.1567826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/01/2019] [Indexed: 06/09/2023]
Abstract
The coupling of electrolysis and the peroxydisulfate (PDS) activation was selected in this study to degrade solution-phase 2,4,6-trichlorophenol (TCP). To enhance the PDS activation efficiency and catalytic recycling ratio, a novel magnetic activator, nano iron coated on neodymium iron boron/activated carbon nanocomposite (Nano-Fe@NdFeB/AC), was synthesized and utilized as catalytic particle electrodes. To increase the mass transfer ability, a novel magnetic internal circulation electrolytic reactor (MICE) was established. The results indicated that globular Fe, with sizes ranging from 25 nm to 300 nm, is present on the surface of the catalyst. This catalyst has sufficient magnetism to be separated by the magnetic separation method and its specific saturation magnetization and residual magnetization were 1.48 and 0.26 emu/g, respectively. At the optimal condition of [pH]0 = 9.0, [Na2S2O8]0 = 2.0 mmol/L, [Nano-Fe@NdFeB/AC]0 = 5.0 g/L and I = 50 mA, the TOC percentage of removal could reach 84% after 30 min of reaction. The TCP mineralization follows pseudo-first-order kinetics. The intermediate products of 2,6-dichloro-2,5-cyclohexadiene-1,4-dione, Tetrachloro-hydroquinone, and 2,3,5,6-tetrachloro-p-benzoquinone were found during the reaction. TCP mineralization was confirmed to have a hybrid mechanism involving reductive dechlorination with Fe, •OH addition oxidation and electron capture by SO•4 -. This study provides a new method for the treatment of degradation-resistant pollutants.
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Affiliation(s)
- Chunwei Yang
- Key Laboratory of Environmental Materials and Pollution Control, the Education Department of Jilin Province, Jilin Normal University, Siping, People's Republic of China
- College of Environmental Science and Engineering, Jilin Normal University, Siping, People's Republic of China
| | - Baixiang Ren
- Key Laboratory of Environmental Materials and Pollution Control, the Education Department of Jilin Province, Jilin Normal University, Siping, People's Republic of China
- College of Environmental Science and Engineering, Jilin Normal University, Siping, People's Republic of China
| | - Dong Wang
- School of Environmental Science and Technology, Dalian University of Technology, Dalian, People's Republic of China
| | - Qian Tang
- Key Laboratory of Environmental Materials and Pollution Control, the Education Department of Jilin Province, Jilin Normal University, Siping, People's Republic of China
- College of Environmental Science and Engineering, Jilin Normal University, Siping, People's Republic of China
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El Mrabet I, Benzina M, Zaitan H. Optimization of persulfate/iron(II)/UV-A irradiation process for the treatment of landfill leachate from Fez City (Morocco). SN Appl Sci 2020. [DOI: 10.1007/s42452-020-2868-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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22
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Liu F, Li W, Wu D, Tian T, Wu JF, Dong ZM, Zhao GC. New insight into the mechanism of peroxymonosulfate activation by nanoscaled lead-based spinel for organic matters degradation: A singlet oxygen-dominated oxidation process. J Colloid Interface Sci 2020; 572:318-27. [PMID: 32272310 DOI: 10.1016/j.jcis.2020.03.116] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/26/2020] [Accepted: 03/29/2020] [Indexed: 02/03/2023]
Abstract
Crystalline iron-based nanoparticles with spinel structure have received great attention for catalyzing peroxymonosulfate (PMS). This study introduces lead ferrite (PbFe2O4) as a novel, simple, and efficient catalyst to activate PMS for the degradation of organic contaminants in aqueous solution. The results indicated that, under pH 9.0, nearly 100% of 10 μM thionine was removed in 20 min. Operation factors, including pH, oxidant concentrations, catalyst dosage, and coexisting ions, were investigated and found to be influential for the thionine removal. PbFe2O4 showed higher catalytic activity and lower ions leaching than well-crystallized lead oxide (PbO) and ferric oxide (Fe2O3). The results from the characterization of the PbFe2O4 with X-ray diffraction (XRD) before and after reaction suggested that the structure and properties of the catalyst kept stable, and the recovered catalyst exhibited good catalytic performance during the recycling batch experiments. Free radical quenching experiments and electron paramagnetic resonance (EPR) spectra revealed that singlet-oxygen (1O2) is the dominant active oxygen species rather than sulfate radical for thionine degradation in PbFe2O4/PMS system. Meanwhile, the possible pathways of 1O2 generation were proposed: the redox reaction between Pb(Ⅳ)/Pb(II) and PMS may play an key role in PMS activation. This study provides an interesting insight in PMS activation by the high-efficient non-radical process, and the PbFe2O4 could be as efficient and recyclable heterogeneous catalyst for organic degradation.
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23
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Yu D, Cui J, Li X, Zhang H, Pei Y. Electrochemical treatment of organic pollutants in landfill leachate using a three-dimensional electrode system. Chemosphere 2020; 243:125438. [PMID: 31995886 DOI: 10.1016/j.chemosphere.2019.125438] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 06/10/2023]
Abstract
The use of three-dimensional electrode is a new electrochemical oxidation technology for landfill leachate treatment. In this study, a particle electrode was developed using Fe/C granules, which were suspended between the cathode and the anode to create a three-dimensional electrode. The three-dimensional electrode activated sodium persulfate to treat landfill leachate. Fe/C granules were prepared by incorporating iron filings and hydrothermally carbonized biochar into alginate beads. The optimal parameters of the three-dimensional electrode for chemical oxygen demand (COD) removal from landfill leachate were determined based on a series of single factor experiments as an operating voltage of 5 V, a sodium persulfate concentration of 28 mM, and 1 g of Fe/C granules. Treatment with the three-dimensional electrode at optimized conditions achieved 72.9% removal of COD and 99.9% removal of ammonia nitrogen, resulting in landfill leachate being clear and transparent. The changes in total organic carbon, nitrite, and nitrate concentrations indicated that most organic pollution and ammonia nitrogen were converted into CO2 and N2. This study provides an alternative technology for the treatment of refractory organic pollutants.
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Affiliation(s)
- Dayang Yu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Jun Cui
- Laboratory of Water Environmental System Engineering, Chinese Research Academy of Environmental Science, Beijing, 100012, China
| | - Xiuqing Li
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Hao Zhang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Yuansheng Pei
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, PR China.
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Yue D, Yan X, Guo C, Qian X, Zhao Y. NiFe Layered Double Hydroxide (LDH) Nanosheet Catalysts with Fe as Electron Transfer Mediator for Enhanced Persulfate Activation. J Phys Chem Lett 2020; 11:968-973. [PMID: 31957448 DOI: 10.1021/acs.jpclett.9b03597] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A highly efficient, durable, and cost-effective Fenton-like catalyst is desired to produce the sulfate radicals (•SO4-) for energy and environmental applications. The M(n+1)+/Mn+ redox cycle in metal catalysts requires a high redox potential for •SO4- generation. NiFe layered double hydroxide (LDH) nanosheets with a suitable redox potential for persulfate (PDS) activation were prepared via incorporating Fe into the Ni based LDH. With the help of Fe, the charge-transfer kinetics for the reduction of Ni3+ to Ni2+ was improved and the formation of unwanted Ni component with higher oxidation state was suppressed. The incorporated Fe as the electron transfer mediator enhanced the process of Ni(OH)2/NiOOH redox cycle. Therefore, NiFe LDH exhibited superior performance in PDS activation with exceptionally high activity for the phenolic compounds' degradation in neutral and basic conditions. This work is expected to inspire the rational design of LDHs based catalysts for PDS activation.
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Affiliation(s)
- Dongting Yue
- School of Environmental Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xuan Yan
- School of Environmental Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Chao Guo
- School of Environmental Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xufang Qian
- School of Environmental Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Yixin Zhao
- School of Environmental Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
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25
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Kattel E, Kaur B, Trapido M, Dulova N. Persulfate-based photodegradation of a beta-lactam antibiotic amoxicillin in various water matrices. Environ Technol 2020; 41:202-210. [PMID: 29932810 DOI: 10.1080/09593330.2018.1493149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
Amoxicillin (AMX), a widely used beta-lactam antibiotic, belongs to the World Health Organization's list of essential medicines. This subsequently causes its long-term presence in the environment and therefore, affects different environmental compartments. In this research, the degradation and mineralisation of AMX by UVC-activated persulfate-based treatment in various aqueous media was assessed. The degradation of the target compound was in accordance with the pseudo-first-order reaction kinetics in all the UVC-induced systems. The results indicated that AMX degradation in any real water matrices is notably inhibited by the matrix properties. The trials with radical scavengers in ultrapure water proved the existence of [Formula: see text] and HO., but mainly [Formula: see text] contributed to the degradation of AMX in the UVC/[Formula: see text] and UVC/[Formula: see text]/Fe2+ systems. It was shown that the parent compound disappeared during the treatment, but the mineralisation extent referred to the formation of transformation products the main of which were identified. The findings of this study could provide valuable information about the elimination of beta-lactam antibiotics from various environmental and processed waters.
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Affiliation(s)
- Eneliis Kattel
- Department of Materials and Environmental Technology, Tallinn University of Technology, Tallinn, Estonia
| | - Balpreet Kaur
- Department of Materials and Environmental Technology, Tallinn University of Technology, Tallinn, Estonia
| | - Marina Trapido
- Department of Materials and Environmental Technology, Tallinn University of Technology, Tallinn, Estonia
| | - Niina Dulova
- Department of Materials and Environmental Technology, Tallinn University of Technology, Tallinn, Estonia
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Li J, Guo R, Ma Q, Nengzi L, Cheng X. Efficient removal of organic contaminant via activation of potassium persulfate by γ-Fe2O3/α-MnO2 nanocomposite. Sep Purif Technol 2019; 227:115669. [DOI: 10.1016/j.seppur.2019.06.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Tuncuk A. Lab scale optimization and two-step sequential bench scale reactor leaching tests for the chemical dissolution of Cu, Au & Ag from waste electrical and electronic equipment (WEEE). Waste Manag 2019; 95:636-643. [PMID: 31351651 DOI: 10.1016/j.wasman.2019.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
Regulations force to Waste Electrical and Electronic Equipment (WEEE) management by recycling the materials by safe and suitable methods, due to generating massive amounts of WEEE. This research aims towards extract metals from waste random-access memory (RAM) devices in different solutions. In addition, the effect of different parameters such as reagent concentration, oxidant concentration and solid/liquid ratio were investigated with full factorial experimental design tests and analysis of variance (ANOVA). The results showed that the extraction of gold and silver was 96.81% and 99.02% respectively under the following conditions: concentration of 2% iodine and 3% hydrogen peroxide as oxidizing agent, 5% solid/liquid ratio and leaching period of 2 h. An increase of the hydrogen peroxide concentration increased gold and silver extraction. While about 79.30% silver was found to be extracted using 2 M sulfuric acid, 1.5 M ammonium persulfate, 5% solid/liquid ratio and leaching period of 5 h, 79.43% copper was extracted by using ammonia instead of sulfuric acid under the same conditions. Ammonium persulfate was found to be a good oxidizing agent for sulfuric acid and ammonia leaching, since it provided selective extraction of silver and copper respectively. Two-step sequential bench scale reactor leaching tests were conducted to extract copper (98.73%), gold (99.98%) and silver (96.90%) selectively with high extraction. Two-step leaching approach was concluded as the most appropriate method for selective extraction of targeted metals from waste RAM devices.
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Affiliation(s)
- Aysenur Tuncuk
- Mineral-Metal Recovery and Recycling (MMR&R) Research Group, Mineral Processing Division, Department of Mining Engineering, Suleyman Demirel University, TR32260 Isparta, Turkey.
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28
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Li Z, Guo C, Lyu J, Hu Z, Ge M. Tetracycline degradation by persulfate activated with magnetic Cu/CuFe 2O 4 composite: Efficiency, stability, mechanism and degradation pathway. J Hazard Mater 2019; 373:85-96. [PMID: 30904816 DOI: 10.1016/j.jhazmat.2019.03.075] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/15/2019] [Accepted: 03/18/2019] [Indexed: 06/09/2023]
Abstract
Magnetically separable Cu/CuFe2O4 composite obtained by a solvothermal method was used to active persulfate (PS) for the removal of tetracycline (TC). Under different pH conditions, Cu/CuFe2O4 catalyst exhibited a higher catalytic activity for PS activation to degrade TC than that of CuFe2O4. The effects of some key parameters including initial pH value, PS concentration, catalyst dosage, reaction temperature and coexisting ions on TC degradation were investigated in Cu/CuFe2O4/PS system. The reuse of Cu/CuFe2O4 catalyst at pH 3.50, 7.00 and 11.00 indicated that the catalyst showed a low stability due to the corrosion of metallic copper (Cu°), but bicarbonate ions could enhance the stability and recyclability of this catalyst through the suppression of copper leaching. Both sulfate and hydroxyl radicals were the main reactive species in Cu/CuFe2O4/PS system. Cu° can not only work as electron donor to active PS to produce the reactive radicals but also act as an electron bridge to facilitate the fast electron transfer between PS and catalyst. The structural cuprous and ferrous ions on the surface of CuFe2O4 participated in the PS activation process through the redox reactions, as confirmed by XPS analysis. The possible degradation pathways of TC were proposed based on the identified intermediates.
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Affiliation(s)
- Zhenlu Li
- North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Changsheng Guo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Jianchang Lyu
- North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Zheng Hu
- North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Ming Ge
- North China University of Science and Technology, Tangshan 063210, Hebei, China.
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29
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Yang ZZ, Wei JJ, Zeng GM, Zhang HQ, Tan XF, Ma C, Li XC, Li ZH, Zhang C. A review on strategies to LDH-based materials to improve adsorption capacity and photoreduction efficiency for CO2. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.018] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Yoo J, Jeon P, Tsang DCW, Kwon EE, Baek K. Ferric-enhanced chemical remediation of dredged marine sediment contaminated by metals and petroleum hydrocarbons. Environ Pollut 2018; 243:87-93. [PMID: 30172127 DOI: 10.1016/j.envpol.2018.08.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/21/2018] [Accepted: 08/16/2018] [Indexed: 06/08/2023]
Abstract
Sediments nearby harbors are dredged regularly, and the sediments require the stringent treatment to meet the regulations on reuse and mitigate the environmental burdens from toxic pollutants. In this study, FeCl3 was chosen as an extraction agent to treat marine sediment co-contaminated with Cu, Zn, and total petroleum hydrocarbons (TPH). In chemical extraction process, the extraction efficiency of Cu and Zn by FeCl3 was compared with the conventional one using inorganic acids (H2SO4 and HCl). Despite the satisfactory level for extraction of Cu (78.8%) and Zn (73.3%) by HCl (0.5 M) through proton-enhanced dissolution, one critical demerit, particularly acidified sediment, led to the unwanted loss of Al, Fe, and Mg by dissolution. Moreover, the vast amount of HCl required the huge amounts of neutralizing agents for the post-treatment of the sediment sample via the washing process. Despite a low concentration, extraction of Cu (70.1%) and Zn (69.4%) was done by using FeCl3 (0.05 M) through proton-enhanced dissolution, ferric-organic matter complexation, and oxidative dissolution of sulfide minerals. Ferric iron (Fe3+) was reduced to ferrous iron (Fe2+) with sulfide (S2-) oxidation during FeCl3 extraction. In consecutive chemical oxidations using hydrogen peroxide (H2O2) and persulfate (S2O82-), the resultant ferrous iron was used to activate the oxidants to effectively degrade TPH. S2O82- using FeCl3 solution (molar ratio of ferrous to S2O82- is 19.8-198.3) removed 42.6% of TPH, which was higher than that by H2O2 (molar ratio of ferrous to H2O2 is 1.2-6.1). All experimental findings suggest that ferric is effectively accommodated to an acid washing step for co-contaminated marine sediments, which leads to enhanced extraction, cost-effectiveness, and less environmental burden.
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Affiliation(s)
- Jongchan Yoo
- Center for Carbon Mineralization, Korea Institute of Geoscience and Mineral Resources (KIGAM), 124, Gwahak-ro, Yuseong-gu, Daejeon, 34132, Republic of Korea
| | - Pilyong Jeon
- Department of Environmental Engineering and Soil Environment Research Center, Chonbuk National University, Baekje-daero, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic of Korea
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Eilhann E Kwon
- Department of Environment and Energy, Sejong University, Seoul, 05006, Republic of Korea
| | - Kitae Baek
- Department of Environmental Engineering and Soil Environment Research Center, Chonbuk National University, Baekje-daero, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic of Korea.
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31
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Zhou Y, Xiang Y, He Y, Yang Y, Zhang J, Luo L, Peng H, Dai C, Zhu F, Tang L. Applications and factors influencing of the persulfate-based advanced oxidation processes for the remediation of groundwater and soil contaminated with organic compounds. J Hazard Mater 2018; 359:396-407. [PMID: 30055429 DOI: 10.1016/j.jhazmat.2018.07.083] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 07/04/2018] [Accepted: 07/23/2018] [Indexed: 05/06/2023]
Abstract
Persulfate is the latest oxidant which is being used increasingly for the remediation of groundwater and soil contaminated with organic compounds. It is of great significant to offer readers a general summary about different methods of activating persulfate, mainly including heat-activated, metal ions-activated, UV-activated, and alkaline-activated. Meanwhile, in addition to persulfate concentration as an influencing factor for persulfate oxidation process, selected information like temperature, anions, cations, pH, and humic acid are presented and discussed. The last section focuses on the advantages of different activated persulfate processes, and the suggestions and research needs for persulfate-based advanced oxidation in the remediation of polluted groundwater and soil.
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Affiliation(s)
- Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Yujia Xiang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yangzhuo He
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yuan Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Jiachao Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Hui Peng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Chunhao Dai
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Feng Zhu
- South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
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32
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Tanyol M, Ogedey A, Oguz E. COD removal from leachate by electrocoagulation process: treatment with monopolar electrodes in parallel connection. Water Sci Technol 2018; 77:177-186. [PMID: 29339616 DOI: 10.2166/wst.2017.528] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study examines the removal of chemical oxygen demand (COD) from landfill leachate generated from the municipal landfill site of Bingol, Turkey. The effect of parameters such as current density, pH, and inter-electrode distance during the electrocoagulation (EC) process on COD removal of the process was investigated. Moreover, for COD removal, the energy consumption and operating costs were calculated for iron electrode under the EC conditions. COD removal efficiency was 72.13% at the current density of 16 mA m-2, pH of 8.05, and the inter-electrode distance of 9 mm at the detention time of 60 min with iron electrode and the COD concentration was reduced from 6,100 mg L-1 to 1,700 mg L-1 by EC. The highest value of the electrical energy and electrode consumptions per kg of COD in the optimum conditions were determined as 0.055 kWh kg-1 COD and 3.43 kg kg-1 COD and the highest operating cost value was found to be 1.41 US$ kg-1 COD for 0-60 min time intervals.
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Affiliation(s)
- Mehtap Tanyol
- Department of Environmental Engineering, Munzur University, Tunceli, Turkey
| | - Aysenur Ogedey
- Department of Environmental Engineering, Munzur University, Tunceli, Turkey
| | - Ensar Oguz
- Department of Environmental Engineering, Ataturk University, Erzurum, Turkey E-mail:
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33
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Xu Y, Zhang L, Pan Y, Liu Y, Wu J, Zhu M, Sun Y, Qian G. Utilization of calcium-based and aluminum-based materials for the treatment of stabilized landfill leachate: a comparative study. Environ Sci Pollut Res Int 2017; 24:26821-26828. [PMID: 28963598 DOI: 10.1007/s11356-017-0264-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 09/19/2017] [Indexed: 06/07/2023]
Abstract
This study explored the efficiencies and mechanisms of refractory organic matters removal in the stabilized landfill leachate by adding different reagents. Calcium-based and aluminum-based materials were added into the leachate as comparing experiments. XRD, FTIR, and EEM were adopted to analyze the solid products and leachate. As a result, the in situ synthesized CaAl-LDHs were more beneficial for refractory organic matters removal, especially for benzodiazepines. When CaAl-LDHs were formed, the removal efficiencies of COD, UV254, and TOC were best and achieved 58.48, 81.22, and 71.30%, respectively. For fluorescent substances, humic acid-like and fulvic acid-like compounds were efficiently removed by CaAl-LDHs. In particular, CaAl-LDHs had selective removal effects on fulvic acid-like compounds, which were characteristic of small molecular weight and major carboxyl groups.
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Affiliation(s)
- Yunfeng Xu
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China
| | - Liang Zhang
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China
| | - Yaxuan Pan
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China
| | - Yangyang Liu
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China
| | - Jianzhong Wu
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China
| | - Mingying Zhu
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China
| | - Ying Sun
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China.
| | - Guangren Qian
- School of Environmental and Chemical Engineering, Shanghai University, No.99 Shangda Rd, Shanghai, 200444, People's Republic of China.
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