251
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Yu J, Li Y, Lu Q, Zheng J, Yang S, Jin F, Wang Q, Yang W. Synthesis, characterization and adsorption of cationic dyes by CS/P(AMPS-co-AM) hydrogel initiated by glow-discharge-electrolysis plasma. IRANIAN POLYMER JOURNAL 2016. [DOI: 10.1007/s13726-016-0434-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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252
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Dai M, Xia L, Song S, Peng C, Lopez-Valdivieso A. Adsorption of As(V) inside the pores of porous hematite in water. JOURNAL OF HAZARDOUS MATERIALS 2016; 307:312-317. [PMID: 26799222 DOI: 10.1016/j.jhazmat.2016.01.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 12/17/2015] [Accepted: 01/05/2016] [Indexed: 06/05/2023]
Abstract
As(V) adsorption inside the pores of porous hematite in water has been studied in this work. This study was performed on nonporous hematite and porous hematite prepared from the thermal decomposition of goethite and siderite through the measurements of adsorption isotherm, SEM-EDX, XRD and BET. The results demonstrated that the As(V) adsorption was difficult to be realized inside pores if they were too small. This observation might be due to that the pore entrances were blocked by the adsorbed ions and thus the inside surfaces became invalid for the adsorption. Only if the pore size is large enough, the effective surface area inside pores would be close to that on non-porous hematite for As(V) adsorption. In addition, it was found that siderite is better than goethite for preparing porous hematite with thermal decomposition as adsorbent for arsenic removal.
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Affiliation(s)
- Min Dai
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China; Doctorado Institucional de Ingeniería y Ciencia de Materiales, Universidad Autonoma de San Luis Potosi, Av. Sierra Leona 530, San Luis Potosi 78210, Mexico
| | - Ling Xia
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China
| | - Shaoxian Song
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China.
| | - Changsheng Peng
- The Key Lab of Marine Environmental Science and Ecology of Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Alejandro Lopez-Valdivieso
- Doctorado Institucional de Ingeniería y Ciencia de Materiales, Universidad Autonoma de San Luis Potosi, Av. Sierra Leona 530, San Luis Potosi 78210, Mexico
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253
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Ren B, Chen Y, Zhu G, Wang Z, Zheng X. Spatial Variability and Distribution of the Metals in Surface Runoff in a Nonferrous Metal Mine. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2016; 2016:4515673. [PMID: 27069713 PMCID: PMC4812458 DOI: 10.1155/2016/4515673] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/08/2016] [Accepted: 02/14/2016] [Indexed: 06/05/2023]
Abstract
The spatial variation and distribution features of the metals tested in the surface runoff in Xikuangshan Bao Daxing miming area were analyzed by combining statistical methods with a geographic information system (GIS). The results showed that the maximum concentrations of those five kinds of the metals (Sb, Zn, Cu, Pb, and Cd) in the surface runoff of the antimony mining area were lower than the standard value except the concentration of metal Ni. Their concentrations were 497.1, 2.0, 1.8, 22.2, and 22.1 times larger than the standard value, respectively. This metal pollution was mainly concentrated in local areas, which were seriously polluted. The variation coefficient of Sb, Zn, Cu, Ni, Pb, and Cd was between 0.4 to 0.6, wherein the Sb's spatial variability coefficient is 50.56%, indicating a strong variability. Variation coefficients of the rest of metals were less than 50%, suggesting a moderate variability. The spatial structure analysis showed that the squared correlation coefficient (R (2)) of the models fitting for Sb, Zn, Cu, Ni, Pb, and Cd was between 0.721 and 0.976; the ratio of the nugget value (C 0) to the abutment value (C + C 0) was between 0.0767 and 0.559; the semivariogram of Sb, Zn, Ni, and Pb was in agreement with a spherical model, while semivariogram of Cu and Cd was in agreement with Gaussian model, and both had a strong spatial correlation. The trend and spatial distribution indicated that those pollution distributions resulting from Ni, Pb, and Cd are similar, mainly concentrated in both ends of north and south in eastern part. The main reasons for the pollution were attributed to the residents living, transportation, and industrial activities; the Sb distribution was concentrated mainly in the central part, of which the pollution was assigned to the mining and the industrial activity; the pollution distributions of Zn and Cu were similar, mainly concentrated in both ends of north and south as well as in west; the sources of the metals were widely distributed.
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Affiliation(s)
- Bozhi Ren
- College of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, China
| | - Yangbo Chen
- College of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, China
| | - Guocheng Zhu
- College of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, China
| | - Zhenghua Wang
- College of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, China
| | - Xie Zheng
- College of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, China
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254
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Hargreaves AJ, Vale P, Whelan J, Constantino C, Dotro G, Cartmell E. Mercury and antimony in wastewater: fate and treatment. WATER, AIR, AND SOIL POLLUTION 2016; 227:89. [PMID: 26949273 PMCID: PMC4764622 DOI: 10.1007/s11270-016-2756-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 01/12/2016] [Indexed: 06/05/2023]
Abstract
It is important to understand the fate of Hg and Sb within the wastewater treatment process so as to examine potential treatment options and to ensure compliance with regulatory standards. The fate of Hg and Sb was investigated for an activated sludge process treatment works in the UK. Relatively high crude values (Hg 0.092 μg/L, Sb 1.73 μg/L) were observed at the works, whilst low removal rates within the primary (Hg 52.2 %, Sb 16.3 %) and secondary treatment stages (Hg 29.5 %, Sb -28.9 %) resulted in final effluent concentrations of 0.031 μg/L for Hg and 2.04 μg/L for Sb. Removal of Hg was positively correlated with suspended solids (SS) and chemical oxygen demand (COD) removal, whilst Sb was negatively correlated. Elevated final effluent Sb concentrations compared with crude values were postulated and were suggested to result from Sb present in returned sludge liquors. Kepner Tregoe (KT) analysis was applied to identify suitable treatment technologies. For Hg, chemical techniques (specifically precipitation) were found to be the most suitable whilst for Sb, adsorption (using granulated ferric hydroxide) was deemed most appropriate. Operational solutions, such as lengthening hydraulic retention time, and treatment technologies deployed on sludge liquors were also reviewed but were not feasible for implementation at the works.
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Affiliation(s)
- Andrew J. Hargreaves
- />Cranfield Water Science Institute, Cranfield University, College Road, Cranfield, Bedford, MK43 0AL UK
| | - Peter Vale
- />Severn Trent Water, 2 St John’s Street, Coventry, CV1 2LZ UK
| | - Jonathan Whelan
- />Severn Trent Water, 2 St John’s Street, Coventry, CV1 2LZ UK
| | - Carlos Constantino
- />Strategic Advisory Services, Atkins, Chilbrook Oasis Business Park, Eynsham, Oxford, OX29 4AH UK
| | - Gabriela Dotro
- />Cranfield Water Science Institute, Cranfield University, College Road, Cranfield, Bedford, MK43 0AL UK
| | - Elise Cartmell
- />Cranfield Water Science Institute, Cranfield University, College Road, Cranfield, Bedford, MK43 0AL UK
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255
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Wang L, Wang JM, Zhang R, Liu XG, Song GX, Chen XF, Wang Y, Kong JL. Highly efficient As(v)/Sb(v) removal by magnetic sludge composite: synthesis, characterization, equilibrium, and mechanism studies. RSC Adv 2016. [DOI: 10.1039/c6ra06208c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Magnetic sludge with the unique flexibility, low thermal conductance and plentiful adsorption sites was fabricated for highly efficient As/Sb removal.
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Affiliation(s)
- Li Wang
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- China
| | - Jing-mei Wang
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- China
| | - Ren Zhang
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- China
| | - Xin-gang Liu
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- China
| | - Guo-xin Song
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- China
| | - Xiao-feng Chen
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- China
| | - Yi Wang
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- China
- Department of Chemistry
| | - Ji-lie Kong
- Department of Chemistry
- Innovative Center of Chemistry for Energy Materials
- Fudan University
- Shanghai 200433
- China
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256
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Abid M, Niazi NK, Bibi I, Farooqi A, Ok YS, Kunhikrishnan A, Ali F, Ali S, Igalavithana AD, Arshad M. Arsenic(V) biosorption by charred orange peel in aqueous environments. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2016; 18:442-449. [PMID: 26552612 DOI: 10.1080/15226514.2015.1109604] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Biosorption efficiency of natural orange peel (NOP) and charred orange peel (COP) was examined for the immobilization of arsenate (As(V)) in aqueous environments using batch sorption experiments. Sorption experiments were carried out as a function of pH, time, initial As(V) concentration and biosorbent dose, using NOP and COP (pretreated with sulfuric acid). Arsenate sorption was found to be maximum at pH 6.5, with higher As(V) removal percentage (98%) by COP than NOP (68%) at 4 g L(-1) optimum biosorbent dose. Sorption isotherm data exhibited a higher As(V) sorption (60.9 mg g(-1)) for COP than NOP (32.7 mg g(-1)). Langmuir model provided the best fit to describe As(V) sorption. Fourier transform infrared spectroscopy and scanning electron microscopy combined with energy dispersive X-ray spectroscopy analyses revealed that the -OH, -COOH, and -N-H surface functional groups were involved in As(V) biosorption and the meso- to micro-porous structure of COP sequestered significantly (2-times) higher As(V) than NOP, respectively. Arsenate desorption from COP was found to be lower (10%) than NOP (26%) up to the third regeneration cycle. The results highlight that this method has a great potential to produce unique 'charred' materials from the widely available biowastes, with enhanced As(V) sorption properties.
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Affiliation(s)
- Muhammad Abid
- a Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad , Faisalabad , Pakistan
| | - Nabeel Khan Niazi
- a Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad , Faisalabad , Pakistan
- b Southern Cross GeoScience , Southern Cross University , Lismore , NSW , Australia
| | - Irshad Bibi
- a Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad , Faisalabad , Pakistan
- b Southern Cross GeoScience , Southern Cross University , Lismore , NSW , Australia
| | - Abida Farooqi
- c Environmental Geochemistry Laboratory, Department of Environmental Sciences , Quaid-i-Azam University , Islamabad , Pakistan
| | - Yong Sik Ok
- d Korea Biochar Research Center & Department of Biological Environment , Kangwon National University , Chuncheon , Korea
| | - Anitha Kunhikrishnan
- e Chemical Safety Division, Department of Agro-Food Safety , National Academy of Agricultural Science , Wanju-gun , Jeollabuk-do , Republic of Korea
| | - Fawad Ali
- f Department of Plant Breeding and Genetics , University of Agriculture Faisalabad , Faisalabad , Pakistan
| | - Shafaqat Ali
- g Department of Environmental Sciences , Government College University , Faisalabad , Pakistan
| | - Avanthi Deshani Igalavithana
- d Korea Biochar Research Center & Department of Biological Environment , Kangwon National University , Chuncheon , Korea
| | - Muhammad Arshad
- a Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad , Faisalabad , Pakistan
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257
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Xu W, Mu B, Wang A. From adsorbents to electrode materials: facile hydrothermal synthesis of montmorillonite/polyaniline/metal oxide (hydroxide) composites. NEW J CHEM 2016. [DOI: 10.1039/c5nj03734d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Montmorillonite/polyaniline/metal oxide (hydroxide) composites are fabricated from the spent adsorbents of montmorillonite/polyaniline for the electrode materials of supercapacitors.
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Affiliation(s)
- Weibing Xu
- State Key Laboratory of Solid Lubrication
- Center of Eco-Materials and Green Chemistry
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- China
| | - Bin Mu
- State Key Laboratory of Solid Lubrication
- Center of Eco-Materials and Green Chemistry
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- China
| | - Aiqin Wang
- State Key Laboratory of Solid Lubrication
- Center of Eco-Materials and Green Chemistry
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- China
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258
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Banerjee A, Banerjee S, Sarkar P. Statistical design of experiments for optimization of arsenate reductase production by Kocuria palustris (RJB-6) and immobilization parameters in polymer beads. RSC Adv 2016. [DOI: 10.1039/c6ra00030d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study presents statistical optimization of operational parameters for enhancement of arsenate reductase production by an arsenic tolerant bacterium Kocuria palustris (RJB-6).
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Affiliation(s)
- Anindita Banerjee
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Suchetana Banerjee
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Priyabrata Sarkar
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
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259
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Li Y, Hu X, Ren B. Treatment of antimony mine drainage: challenges and opportunities with special emphasis on mineral adsorption and sulfate reducing bacteria. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:2039-2051. [PMID: 27148704 DOI: 10.2166/wst.2016.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The present article summarizes antimony mine distribution, antimony mine drainage generation and environmental impacts, and critically analyses the remediation approach with special emphasis on iron oxidizing bacteria and sulfate reducing bacteria. Most recent research focuses on readily available low-cost adsorbents, such as minerals, wastes, and biosorbents. It is found that iron oxides prepared by chemical methods present superior adsorption ability for Sb(III) and Sb(V). However, this process is more costly and iron oxide activity can be inhibited by plenty of sulfate in antimony mine drainage. In the presence of sulfate reducing bacteria, sulfate can be reduced to sulfide and form Sb(2)S(3) precipitates. However, dissolved oxygen and lack of nutrient source in antimony mine drainage inhibit sulfate reducing bacteria activity. Biogenetic iron oxide minerals from iron corrosion by iron-oxidizing bacteria may prove promising for antimony adsorption, while the micro-environment generated from iron corrosion by iron oxidizing bacteria may provide better growth conditions for symbiotic sulfate reducing bacteria. Finally, based on biogenetic iron oxide adsorption and sulfate reducing bacteria followed by precipitation, the paper suggests an alternative treatment for antimony mine drainage that deserves exploration.
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Affiliation(s)
- Yongchao Li
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China E-mail:
| | - Xiaoxian Hu
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China E-mail:
| | - Bozhi Ren
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China E-mail:
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260
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Li Y, Geng B, Hu X, Ren B, Hursthouse AS. Preparation and characterization of iron-copper binary oxide and its effective removal of antimony(III) from aqueous solution. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:393-401. [PMID: 27438244 DOI: 10.2166/wst.2016.219] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
An Fe-Cu binary oxide was fabricated through a simple co-precipitation process, and was used to remove Sb(III) from aqueous solution. X-ray diffraction, scanning electron microscopy, energy dispersive X-ray and N2 adsorption-desorption measurements demonstrated that the Fe-Cu binary oxide consisted of poorly ordered ferrihydrite and CuO, and its specific surface area was higher than both iron oxide and copper oxide. A comparative test indicated that Fe/Cu molar ratio of prepared binary oxide greatly influenced Sb(III) removal and the optimum Fe/Cu molar ratio was about 3/1. Moreover, a maximum adsorption capacity of 209.23 mg Sb(III)/g Fe-Cu binary oxide at pH 5.0 was obtained. The removal of Sb(III) by Fe-Cu binary oxide followed the Freundlich adsorption isotherm and the pseudo-second-order kinetics in the batch study. The removal of Sb(III) was not sensitive to solution pH. In addition, the release of Fe and Cu ions to water was very low when the pH was greater than 6.0. X-ray photoelectron spectroscopy analysis confirmed that the Sb(III) adsorbed on the surface was not oxidized to Sb(V).
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Affiliation(s)
- Yongchao Li
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China E-mail:
| | - Bing Geng
- Chinese Academy of Agricultural Sciences, Institute of Environment and Sustainable Development in Agriculture, Beijing 100081, China
| | - Xiaoxian Hu
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China E-mail:
| | - Bozhi Ren
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China E-mail:
| | - Andrew S Hursthouse
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China E-mail: ; School of Science and Sport, University of the West of Scotland, Paisley PA1 2BE, Scotland, UK
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261
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Jiang W, Lin S, Chang CH, Ji Z, Sun B, Wang X, Li R, Pon N, Xia T, Nel AE. Implications of the Differential Toxicological Effects of III-V Ionic and Particulate Materials for Hazard Assessment of Semiconductor Slurries. ACS NANO 2015; 9:12011-12025. [PMID: 26549624 DOI: 10.1021/acsnano.5b04847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Because of tunable band gaps, high carrier mobility, and low-energy consumption rates, III-V materials are attractive for use in semiconductor wafers. However, these wafers require chemical mechanical planarization (CMP) for polishing, which leads to the generation of large quantities of hazardous waste including particulate and ionic III-V debris. Although the toxic effects of micron-sized III-V materials have been studied in vivo, no comprehensive assessment has been undertaken to elucidate the hazardous effects of submicron particulates and released III-V ionic components. Since III-V materials may contribute disproportionately to the hazard of CMP slurries, we obtained GaP, InP, GaAs, and InAs as micron- (0.2-3 μm) and nanoscale (<100 nm) particles for comparative studies of their cytotoxic potential in macrophage (THP-1) and lung epithelial (BEAS-2B) cell lines. We found that nanosized III-V arsenides, including GaAs and InAs, could induce significantly more cytotoxicity over a 24-72 h observation period. In contrast, GaP and InP particulates of all sizes as well as ionic GaCl3 and InCl3 were substantially less hazardous. The principal mechanism of III-V arsenide nanoparticle toxicity is dissolution and shedding of toxic As(III) and, to a lesser extent, As(V) ions. GaAs dissolves in the cell culture medium as well as in acidifying intracellular compartments, while InAs dissolves (more slowly) inside cells. Chelation of released As by 2,3-dimercapto-1-propanesulfonic acid interfered in GaAs toxicity. Collectively, these results demonstrate that III-V arsenides, GaAs and InAs nanoparticles, contribute in a major way to the toxicity of III-V materials that could appear in slurries. This finding is of importance for considering how to deal with the hazard potential of CMP slurries.
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Affiliation(s)
- Wen Jiang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Sijie Lin
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Chong Hyun Chang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Zhaoxia Ji
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Bingbing Sun
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Xiang Wang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Ruibin Li
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Nanetta Pon
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Tian Xia
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles , 10833 Le Conte Avenue, Los Angeles, California 90095, United States
| | - André E Nel
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles , 570 Westwood Plaza, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles , 10833 Le Conte Avenue, Los Angeles, California 90095, United States
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262
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Nicomel NR, Leus K, Folens K, Van Der Voort P, Du Laing G. Technologies for Arsenic Removal from Water: Current Status and Future Perspectives. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 13:ijerph13010062. [PMID: 26703687 PMCID: PMC4730453 DOI: 10.3390/ijerph13010062] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/16/2015] [Accepted: 12/17/2015] [Indexed: 11/26/2022]
Abstract
This review paper presents an overview of the available technologies used nowadays for the removal of arsenic species from water. Conventionally applied techniques to remove arsenic species include oxidation, coagulation-flocculation, and membrane techniques. Besides, progress has recently been made on the utility of various nanoparticles for the remediation of contaminated water. A critical analysis of the most widely investigated nanoparticles is presented and promising future research on novel porous materials, such as metal organic frameworks, is suggested.
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Affiliation(s)
- Nina Ricci Nicomel
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
- Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, B-9000 Gent, Belgium.
- Department of Engineering Science, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, 4031 Laguna, Philippines.
| | - Karen Leus
- Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, B-9000 Gent, Belgium.
| | - Karel Folens
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
| | - Pascal Van Der Voort
- Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, B-9000 Gent, Belgium.
| | - Gijs Du Laing
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
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263
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Chatterjee S, De S. Application of novel, low-cost, laterite-based adsorbent for removal of lead from water: Equilibrium, kinetic and thermodynamic studies. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2015; 51:193-203. [PMID: 26646980 DOI: 10.1080/10934529.2015.1094321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Contamination of groundwater by carcinogenic heavy metal, e.g., lead is an important issue and possibility of using a natural rock, laterite, is explored in this work to mitigate this problem. Treated laterite (TL- prepared using hydrochloric acid and sodium hydroxide) was successfully utilized for this purpose. The adsorbent was characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX), and Fourier Transform Infrared Spectroscopy (FTIR) to highlight its physical and chemical properties. Optimized equilibrium conditions were 1 g L(-1) adsorbent concentration, 0.26 mm size and a pH of 7 ± 0.2. Monolayer adsorption capacity of lead on treated laterite was 15 mg/g, 14.5 and 13 mg g(-1) at temperatures of 303 K, 313 K and 323 K, respectively. The adsorption was exothermic and physical in nature. At 303 K, value of effective diffusivity of (De) and mass transfer co-efficient (Kf) of lead onto TL were 6.5 × 10(-10) m(2)/s and 3.3 × 10(-4) m/s, respectively (solved from shrinking core model of adsorption kinetics). Magnesium and sulphate show highest interference effect on the adsorption of lead by TL. Efficacy of the adsorbent has been verified using real-life contaminated groundwater. Thus, this work demonstrates performance of a cost-effective media for lead removal.
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Affiliation(s)
- Somak Chatterjee
- a Department of Chemical Engineering , Indian Institute of Technology-Kharagpur , Kharagpur , India
| | - Sirshendu De
- a Department of Chemical Engineering , Indian Institute of Technology-Kharagpur , Kharagpur , India
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Savvilotidou V, Hahladakis JN, Gidarakos E. Leaching capacity of metals-metalloids and recovery of valuable materials from waste LCDs. WASTE MANAGEMENT (NEW YORK, N.Y.) 2015; 45:314-24. [PMID: 26087646 DOI: 10.1016/j.wasman.2015.05.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/19/2015] [Accepted: 05/20/2015] [Indexed: 05/24/2023]
Abstract
The purpose of Directive 2012/19/EU which is related to WEEE (Waste Electrical and Electronic Equipment), also known as "e-waste", is to contribute to their sustainable production and consumption that would most possibly be achieved by their recovery, recycling and reuse. Under this perspective, the present study focused on the recovery of valuable materials, metals and metalloids from LCDs (Liquid Crystal Displays). Indium (In), arsenic (As) and stibium (Sb) were selected to be examined for their Leaching Capacity (R) from waste LCDs. Indium was selected mainly due to its rarity and preciousness, As due to its high toxicity and wide use in LCDs and Sb due to its recent application as arsenic's replacement to improve the optimal clarity of a LCD screen. The experimental procedure included disassembly of screens along with removal and recovery of polarizers via thermal shock, cutting, pulverization and digestion of the shredded material and finally leaching evaluation of the aforementioned elements. Leaching tests were conducted under various temperatures, using various solid:liquid (S/L) ratios and solvents (acid mixtures), to determine the optimal conditions for obtaining the maximum leaching capacities. The examined elements exhibited different leaching behaviors, mainly due to the considerable diversity in their inherent characteristic properties. Indium demonstrated the highest recovery percentages (approximately 60%), while the recovery of As and Sb was unsuccessful, obtaining poor leaching percentages (0.16% and 0.5%, respectively).
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Affiliation(s)
- Vasiliki Savvilotidou
- School of Environmental Engineering, Technical University of Crete, Politechnioupolis, Chania 73100, Greece.
| | - John N Hahladakis
- School of Environmental Engineering, Technical University of Crete, Politechnioupolis, Chania 73100, Greece.
| | - Evangelos Gidarakos
- School of Environmental Engineering, Technical University of Crete, Politechnioupolis, Chania 73100, Greece.
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265
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Adsorption of Al(III), Sb(III), chromate and halides onto some natural versus commercial materials. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4517-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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266
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Liu F, Zhou J, Zhang S, Liu L, Zhou L, Fan W. Schwertmannite Synthesis through Ferrous Ion Chemical Oxidation under Different H2O2 Supply Rates and Its Removal Efficiency for Arsenic from Contaminated Groundwater. PLoS One 2015; 10:e0138891. [PMID: 26398214 PMCID: PMC4580644 DOI: 10.1371/journal.pone.0138891] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/04/2015] [Indexed: 11/18/2022] Open
Abstract
Schwertmannite-mediated removal of arsenic from contaminated water has attracted increasing attention. However, schwertmannite chemical synthesis behavior under different H2O2 supply rates for ferrous ions oxidation is unclear. This study investigated pH, ferrous ions oxidation efficiency, and total iron precipitation efficiency during schwertmannite synthesis by adding H2O2 into FeSO4 · 7H2O solution at different supply rates. Specific surface area and arsenic (III) removal capacity of schwertmannite have also been studied. Results showed that pH decreased from ~3.48 to ~1.96, ~2.06, ~2.12, ~2.14, or ~2.17 after 60 h reaction when the ferrous ions solution received the following corresponding amounts of H2O2: 1.80 mL at 2 h (treatment 1); 0.90 mL at 2 h and 14 h (treatment 2); 0.60 mL at 2, 14, and 26 h (treatment 3); 0.45 mL at 2, 14, 26, and 38 h (treatment 4), or 0.36 mL at 2, 14, 26, 38, and 50 h (treatment 5). Slow H2O2 supply significantly inhibited the total iron precipitation efficiency but improved the specific surface area or arsenic (III) removal capacity of schwertmannite. For the initial 50.0 μg/L arsenic (III)-contaminated water under pH ~7.0 and using 0.25 g/L schwertmannite as an adsorbent, the total iron precipitation efficiency, specific surface area of the harvested schwertmannite, and schwertmannite arsenic(III) removal efficiency were 29.3%, 2.06 m2/g, and 81.1%, respectively, in treatment 1. However, the above parameters correspondingly changed to 17.3%, 16.30 m2/g, and 96.5%, respectively, in treatment 5.
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Affiliation(s)
- Fenwu Liu
- Environmental Engineering Laboratory, College of Resource and Environment, Shanxi Agricultural University, Taigu, China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Shasha Zhang
- Environmental Engineering Laboratory, College of Resource and Environment, Shanxi Agricultural University, Taigu, China
| | - Lanlan Liu
- Environmental Engineering Laboratory, College of Resource and Environment, Shanxi Agricultural University, Taigu, China
| | - Lixiang Zhou
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Wenhua Fan
- Environmental Engineering Laboratory, College of Resource and Environment, Shanxi Agricultural University, Taigu, China
- * E-mail:
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267
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Luo J, Luo X, Crittenden J, Qu J, Bai Y, Peng Y, Li J. Removal of Antimonite (Sb(III)) and Antimonate (Sb(V)) from Aqueous Solution Using Carbon Nanofibers That Are Decorated with Zirconium Oxide (ZrO2). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:11115-24. [PMID: 26301862 DOI: 10.1021/acs.est.5b02903] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Zirconium oxide (ZrO2)-carbon nanofibers (ZCN) were fabricated and batch experiments were used to determine antimonite (Sb(III)) and antimonate (Sb(V)) adsorption isotherms and kinetics. ZCN have a maximum Sb(III) and Sb(V) adsorption capacity of 70.83 and 57.17 mg/g, respectively. The adsorption process between ZCN and Sb was identified to be an exothermic and follows an ion-exchange reaction. The application of ZCN was demonstrated using tap water spiked with Sb (200 μg/L). We found that the concentration of Sb was well below the maximum contaminant level for drinking water with ZCN dosages of 2 g/L. X-ray photoelectron spectroscopy (XPS) revealed that an ionic bond of Zr-O was formed with Sb(III) and Sb(V). Based on the density functional theory (DFT) calculations, Sb(III) formed Sb-O and O-Zr bonds on the surface of the tetragonal ZrO2 (t-ZrO2) (111) plane and monoclinic ZrO2 planes (m-ZrO2) (111) plane when it adsorbs. Only an O-Zr bond was formed on the surface of t-ZrO2 (111) plane and m-ZrO2 (111) plane for Sb(V) adsorption. The adsorption energy (Ead) of Sb(III) and Sb(V) onto t-ZrO2 (111) plane were 1.13 and 6.07 eV, which were higher than that of m-ZrO2 (0.76 and 3.35 eV, respectively).
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Affiliation(s)
- Jinming Luo
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering, Georgia Institute of Technology , 828 West Peachtree Street, Atlanta, Georgia 30332, United States
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University , Nanchang 330063, China
| | - John Crittenden
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering, Georgia Institute of Technology , 828 West Peachtree Street, Atlanta, Georgia 30332, United States
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
| | - Yaohui Bai
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
| | - Yue Peng
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering, Georgia Institute of Technology , 828 West Peachtree Street, Atlanta, Georgia 30332, United States
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University , Beijing, 100084, China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University , Beijing, 100084, China
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268
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Gao Y, Sturgeon RE, Mester Z, Hou X, Zheng C, Yang L. Direct Determination of Trace Antimony in Natural Waters by Photochemical Vapor Generation ICPMS: Method Optimization and Comparison of Quantitation Strategies. Anal Chem 2015; 87:7996-8004. [DOI: 10.1021/acs.analchem.5b02001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ying Gao
- National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
- College
of Geosciences, Chengdu University of Technology, Chengdu 610059, China
| | | | - Zoltán Mester
- National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Xiandeng Hou
- Key Laboratory of
Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Chengbin Zheng
- Key Laboratory of
Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Lu Yang
- National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
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