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Zhang F, Fu H, Zhang D, Lou H, Sun X, Sun P, Wang X, Bao M. Co-pollution risk of petroleum hydrocarbons and heavy metals in typically polluted estuarine wetlands: Insights from the Xiaoqing River. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174694. [PMID: 38997022 DOI: 10.1016/j.scitotenv.2024.174694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
Excessive accumulation of total petroleum hydrocarbons (TPH) and heavy metals (HMs) in sediments poses a significant threat to the estuarine ecosystem. In this study, the spatial and temporal distribution, ecological risks, sources, and their impacts on the microbial communities of TPH and nine HMs in the estuarine sediments of the Xiaoqing River were determined. Results showed that the spatial distribution of TPH and HMs were similar but opposite in temporal. Ni, Cr, Pb, and Co concentrations were similar to the reference values (RVs). However, the other five HMs (Cu, Zn, Cd, As, and Hg) and TPH concentrations were 2.00-763.44 times higher than RVs; hence, this deserves attention, particularly for Hg. Owing to the water content of the sediments, Hg was mainly concentrated on the surface during the wet season and on the bottom during the dry season. Moreover, because of weak hydrodynamics and upstream pollutant sinks, TPH-HMs in the river were higher than those in the estuary. TPH and HM concentrations were negatively correlated with microbial diversity. Structural equation modeling showed that HMs (path coefficient = -0.50, p < 0.001) had a negative direct effect on microbial community structure and a positive indirect effect on TPH. The microbial community (path coefficient = 0.31, 0.01 < p < 0.05) was significantly correlated with TPH. In summary, this study explores both the chemical analysis of pollutants and their interaction with microbial communities, providing a better understanding of the co-pollution of TPH and HMs in estuarine sediments.
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Affiliation(s)
- Feifei Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Hongrui Fu
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Dong Zhang
- Shouguang Marine Fishery Development Center, Weifang 262700, China
| | - Huawei Lou
- Shouguang Marine Fishery Development Center, Weifang 262700, China
| | - Xiaojun Sun
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
| | - Peiyan Sun
- Key Laboratory of Ecological Warning, Protection & Restoration for Bohai Sea, Ministry of Natural Resources, Qingdao 266100, China
| | - Xinping Wang
- Key Laboratory of Ecological Warning, Protection & Restoration for Bohai Sea, Ministry of Natural Resources, Qingdao 266100, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
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Wei T, Gao H, An F, Ma X, Hua L, Guo J. Performance of heavy metal-immobilizing bacteria combined with biochar on remediation of cadmium and lead co-contaminated soil. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:6009-6026. [PMID: 37204552 DOI: 10.1007/s10653-023-01605-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/02/2023] [Indexed: 05/20/2023]
Abstract
Heavy metal pollution of soil has become a public concern worldwide since it threats food safety and human health. Sustainable and environmental-friendly remediation technology is urgently needed. Therefore, we investigated the properties and heavy metal removal ability of Enterobacter asburiae G3 (G3), Enterobacter tabaci I12 (I12), and explored the feasibility of remediation Cd, Pb co-contaminated soil by the combination of G3/I12 and biochar. Our results indicated that both strains are highly resistant to Cd, Pb and maintain plant growth-promoting properties. The removal efficiency of G3 for Cd and Pb were 76.79-99.43%, respectively, while the removal efficiency of I12 for Cd and Pb were 62.57-99.55%, respectively. SEM-EDS and XRD analysis revealed that the morphological and structural changes occurred upon heavy metal exposure, metal precipitates were also detected on cell surface. FTIR analysis indicated that functional groups (-OH, -N-H, -C = O, -C-N, -PO4) were involved in Cd/Pb immobilization. Application of the bacteria, biochar, or their combination decreased the acid-extractable Cd, Pb in soil while increased the residual fractions, meanwhile, the bioavailability of both metal elements declined. Besides, these treatments increased soil enzyme (sucrase, catalase and urease) activity and accelerated pakchoi growth, heavy metal accumulation in pakchoi was depressed upon bacteria and/or biochar application, and a synergistic effect was detected when applying bacteria and biochar together. In BC + G3 and BC + I12 treated plants, the Cd and Pb accumulation decreased by 24.42% and 52.19%, 17.55% and 47.36%, respectively. Overall, our study provides an eco-friendly and promising in situ technology that could be applied in heavy metal remediation.
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Affiliation(s)
- Ting Wei
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
| | - Han Gao
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
| | - Fengqiu An
- College of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China
| | - Xiulian Ma
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
| | - Li Hua
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
| | - Junkang Guo
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China.
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3
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Lu Q, Xu X, Fang W, Wang H, Liang Z, Cai R, Hu Z, Shim H, Rossetti S, Wang S. Metal(loid)s in organic-matter-polluted urban rivers in China: Spatial pattern, ecological risk and reciprocal interactions with aquatic microbiome. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131781. [PMID: 37315412 DOI: 10.1016/j.jhazmat.2023.131781] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/16/2023] [Accepted: 06/03/2023] [Indexed: 06/16/2023]
Abstract
Black-odorous urban rivers can serve as reservoirs for heavy metals and other pollutants, in which sewage-derived labile organic matter triggering the water blackening and odorization largely determine the fate and ecological impact of the heavy metals. Nonetheless, information on the pollution and ecological risk of heavy metals and their reciprocal impact on microbiome in organic matter-polluted urban rivers remain unknown. In this study, sediment samples were collected and analyzed from 173 typical black-odorous urban rivers in 74 cities across China, providing a comprehensive nationwide assessment of heavy metal contamination. The results revealed substantial contamination levels of 6 heavy metals (i.e., Cu, Zn, Pb, Cr, Cd, and Li), with average concentrations ranging from 1.85 to 6.90 times higher than their respective background values in soil. Notably, the southern, eastern, and central regions of China exhibited particularly elevated contamination levels. In comparison to oligotrophic and eutrophic waters, the black-odorous urban rivers triggered by organic matter exhibited significantly higher proportions of the unstable form of these heavy metals, indicating elevated ecological risks. Further analyses suggested the critical roles of organic matter in shaping the form and bioavailability of heavy metals through fueling microbial processes. In addition, most heavy metals had significantly higher but varied impact on the prokaryotic populations relative to eukaryotes.
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Affiliation(s)
- Qihong Lu
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China
| | - Xiangping Xu
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China
| | - Wenwen Fang
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China
| | - Huimin Wang
- School of Medical Technology, Guangdong Medical University, Dongguan 523808, China
| | - Zhiwei Liang
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China
| | - Ran Cai
- Beijing Capital Eco-Environment Protection Group, Beijing 100044, China
| | - Zhuofeng Hu
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China
| | - Hojae Shim
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, 999078, Macao Special Administrative Region of China
| | - Simona Rossetti
- Water Research Institute, IRSA-CNR, Via Salaria km 29, 300, Monterotondo, RM 00015, Italy
| | - Shanquan Wang
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China.
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4
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Zhong S, Hu M, Zhang L, Qin X, Zhang Q, Ru X, Wang LA. Toxic metals and the risks of sludge from the treatment of wastewater from beryllium smelting. CHEMOSPHERE 2023; 326:138439. [PMID: 36935057 DOI: 10.1016/j.chemosphere.2023.138439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
The release of highly toxic beryllium in sludge (BCS) produced by physico-chemical treatment of beryllium-containing wastewater from Be smelting production has become a growing concern with the widespread use of Be in the defense industry. This work investigated the potential mobility of Be in BCS. The toxicity characteristic leaching procedure (TCLP) of BCS showed that the amount of leached Be was up to 202 mg L-1, which exceeded the regulated limit by nearly 10,000 times. The chemical fractionation analysis further revealed that the excessive amount of Be leached from BCS was contributed to the high content of acid-soluble fraction and reducible fraction of Be, which accounted for over 70% of the Be content. The results obtained from mineralogical automatic analyzer (MLA) showed that gypsum (23.23%) and epidote (19.55%) were the two major mineralogical phases of BCS. Both were small and loosely structured agglomerated particles with a D50 of 6.61 μm and 3.31 μm. ToF-SIMS results revealed that the Be distribution on the surface of BCS particles was relatively dispersed, with no aggregation or encapsulation. Be co-precipitated with gypsum and chlorite in the form of unstable Be(OH)2, which attached to the surface of these small particles. The unstable state of Be and the small size, loose structure and high liberation of the host material phases are the main reasons for the high leaching mobility of Be. The results of the risk assessment indicated that BCS posed an extremely high potential ecological risk, with Be being the most significant contributor.
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Affiliation(s)
- Shan Zhong
- College of Life Sciences, Guilin University of Electronic Technology, 541004, PR China.
| | - Min Hu
- College of Life Sciences, Guilin University of Electronic Technology, 541004, PR China.
| | - Lishan Zhang
- College of Life Sciences, Guilin University of Electronic Technology, 541004, PR China.
| | - Xiaoqi Qin
- College of Life Sciences, Guilin University of Electronic Technology, 541004, PR China.
| | - Qian Zhang
- College of Life Sciences, Guilin University of Electronic Technology, 541004, PR China.
| | - Xuan Ru
- College of Life Sciences, Guilin University of Electronic Technology, 541004, PR China.
| | - Li Ao Wang
- School of Resource and Safety Engineeing, Chongqing University, Chongqing, 40044, PR China.
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Chen Z, Geng W, Jiang X, Ruan X, Wu D, Li Y. A New Sight of Influencing Effects of Major Factors on Cd Transfer from Soil to Wheat ( Triticum aestivum L.): Based on Threshold Regression Model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12363. [PMID: 36231660 PMCID: PMC9565076 DOI: 10.3390/ijerph191912363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Due to the high toxicity and potential health risk of cadmium (Cd), the influencing effects of major factors (like pH, OM, and clay, etc.) on Cd bioaccumulation and transfer from soil to crop grains are highly concerned. Multiple linear regression models were usually applied in previous literature, but these linear models could not reflect the threshold effects of major factors on Cd transfer under different soil environmental conditions. Soil pH and other factors on Cd transfer in a soil-plant system might pose different or even contrary effects under different soil Cd exposure levels. For this purpose, we try to apply a threshold regression model to analyze the effects of key soil parameters on Cd bioaccumulation and transfer from soil to wheat. The results showed that under different soil pH or Cd levels, several factors, including soil pH, organic matter, exchangeable Cd, clay, P, Zn, and Ca showed obvious threshold effects, and caused different or even contrary impacts on Cd bioaccumulation in wheat grains. Notably, the increase of soil pH inhibited Cd accumulation when pH > 7.98, but had a promotional effect when pH ≤ 7.98. Thus, threshold regression analysis could provide a new insight that can lead to a more integrated understanding of the relevant factors on Cd accumulation and transfer from soil to wheat. In addition, it might give us a new thought on setting regulatory limits on Cd contents in wheat grains, or the inhibitory factors of Cd transfer.
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Affiliation(s)
- Zhifan Chen
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China or
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Wencai Geng
- School of Economics, Henan University, Jinming District, Kaifeng 475004, China
| | - Xingyuan Jiang
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China or
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Xinling Ruan
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China or
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Di Wu
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China or
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Yipeng Li
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China or
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
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6
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Han D, Pei L, Huang G, Hou Q, Zhang M, Song J, Gan L, Wu H. The Aging Process of Cadmium in Paddy Soils under Intermittent Irrigation with Acid Water: A Short-Term Simulation Experiment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19063339. [PMID: 35329022 PMCID: PMC8952257 DOI: 10.3390/ijerph19063339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/27/2022] [Accepted: 03/02/2022] [Indexed: 11/16/2022]
Abstract
Cadmium (Cd)-contaminated paddy soils are a big concern. However, the effect of irrigation with acid water on the migration and transformation of Cd and the effect of alternating redox conditions caused by intermittent irrigation on Cd aging processes in different depths of paddy soils are unclear. This study revealed Cd fractionation and aging in a Cd-contaminated paddy soil under four irrigation periods with acid water and four drainage periods, by applying a soil columns experiment and a sequential extraction procedure. The results showed that the dynamic changes of soil pH, oxidation reduction potential (ORP), iron (Fe) oxides and dissolved organic carbon (DOC) throughout the intermittent irrigation affected the transformation of Cd fractions. After 32 days, the proportion of exchangeable Cd (F1) to the total Cd decreased with a reduction of 24.4% and 20.1% at the topsoil and the subsoil, respectively. The labile fractions of Cd decreased, and the more immobilizable fractions of Cd increased in the different depths of soils due to the aging process. Additionally, the redistribution of the Fe and Mn oxide-bound Cd (F3) and organic matter and secondary-sulfide-bound Cd (F4) occurred at different depths of soils during the incubation time. Overall, the bioaccessibility of Cd in the subsoil was higher than that in the topsoil, which was likely due to the leaching and accumulation of soluble Cd in the deep soil. In addition, the aging processes in different depths of soils were divided into three stages, which can be mainly described as the transformation of F1 into F3 and F4.
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Affiliation(s)
- Dongya Han
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China; (D.H.); (Q.H.); (M.Z.); (J.S.); (L.G.)
- Hebei and China Geological Survey Key Laboratory of Groundwater Remediation, Shijiazhuang 050061, China
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei GEO University, Shijiazhuang 050031, China
| | - Lixin Pei
- Haikou Marine Geological Survey Center, China Geological Survey, Haikou 571100, China
- Correspondence: (L.P.); (G.H.)
| | - Guanxing Huang
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China; (D.H.); (Q.H.); (M.Z.); (J.S.); (L.G.)
- Hebei and China Geological Survey Key Laboratory of Groundwater Remediation, Shijiazhuang 050061, China
- Correspondence: (L.P.); (G.H.)
| | - Qinxuan Hou
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China; (D.H.); (Q.H.); (M.Z.); (J.S.); (L.G.)
- Hebei and China Geological Survey Key Laboratory of Groundwater Remediation, Shijiazhuang 050061, China
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei GEO University, Shijiazhuang 050031, China
| | - Meng Zhang
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China; (D.H.); (Q.H.); (M.Z.); (J.S.); (L.G.)
- Hebei and China Geological Survey Key Laboratory of Groundwater Remediation, Shijiazhuang 050061, China
| | - Jiangmin Song
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China; (D.H.); (Q.H.); (M.Z.); (J.S.); (L.G.)
- Hebei and China Geological Survey Key Laboratory of Groundwater Remediation, Shijiazhuang 050061, China
| | - Lin Gan
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China; (D.H.); (Q.H.); (M.Z.); (J.S.); (L.G.)
- Hebei and China Geological Survey Key Laboratory of Groundwater Remediation, Shijiazhuang 050061, China
| | - Heqiu Wu
- Zhejiang Engineering Geophysical Survey and Design Institute Co., Ltd., Hangzhou 310005, China;
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Gao P, Wang S, Cheng F, Guo S. Improvement of the electrokinetic fluxes by tall fescue: Alleviation of ion attenuation and maintainability of soil colloidal properties. CHEMOSPHERE 2022; 290:133128. [PMID: 34861265 DOI: 10.1016/j.chemosphere.2021.133128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/23/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
In this study, we aimed to address the attenuation of electrokinetic fluxes that occur during plant (tall fescue)-based electrokinetic remediation of oil-contaminated soil. Following 60 days of treatment, the concentration of water-soluble cations and anions in the electrokinetics-assisted phytoremediation treatment (EK-P) were 20.03 mg/kg and 15.7 mg/kg higher than that in the electrokinetic (EK) treatment, respectively. At the electrode, plants were able to alleviate the ion aggregation effect caused by the electrokinetics, reduce the conversion of soluble ions to insoluble ones, and reduce the decay of water-soluble ions. In addition, the zeta potential of EK-P was 5.05 mV lower than that of EK. Plants maintained the stability of the soil colloid and reduced the movement of the peak of colloidal particle size from small to large particles, thereby reducing the amount of colloidal deposition. Finally, the EK-P current was 22.49% higher than that in EK while the electrokinetic effect was maintained. Meanwhile, electrokinetics increased plant biomass by 20.21%. Electrokinetics was found to create a synergy with the plants, an effect that eventually enhanced the rate of oil degradation.
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Affiliation(s)
- Peng Gao
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; National-Local Joint Engineering Laboratory of Contaminated Soil Remediation By Bio-physicochemical Synergistic Process, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Sa Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; National-Local Joint Engineering Laboratory of Contaminated Soil Remediation By Bio-physicochemical Synergistic Process, China.
| | - Fenglian Cheng
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; National-Local Joint Engineering Laboratory of Contaminated Soil Remediation By Bio-physicochemical Synergistic Process, China.
| | - Shuhai Guo
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; National-Local Joint Engineering Laboratory of Contaminated Soil Remediation By Bio-physicochemical Synergistic Process, China.
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Aydinoglu S. Iron and Zinc Determination in Dietary Supplements by Flame Atomic Absorption Spectrophotometry. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e21094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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9
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Bibak M, Sattari M, Tahmasebi S, Kafaei R, Sorial GA, Ramavandi B. Trace and Major Elements Concentration in Fish and Associated Sediment-Seawater, Northern Shores of the Persian Gulf. Biol Trace Elem Res 2021; 199:2717-2729. [PMID: 32894397 DOI: 10.1007/s12011-020-02370-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 09/01/2020] [Indexed: 12/26/2022]
Abstract
The concentration of 19 metal and non-metal elements in two fishes (Liza subviridis and Sphyraena jello) and associated sediment-seawater from the northern part of the Persian Gulf was measured. The samples were gathered from two industrial ports, one commercial port, and one residential port. The metal accumulation in the muscle and liver of fishes was evaluated. Nickel (mean 362.07-712.83 μg/g) and chromium (mean 470.00-691.47 μg/g) in sediment and zinc (mean 9.01-31.15 μg/L) and arsenic (mean 18.22-22.14 μg/L) in seawater had the most abundancy among studied elements. The accumulation of elements in S. jello (a pelagic species) was higher than L. subviridis (a demersal species). For both species, major elements of S and Mg and trace elements of Fe, Al, Si, Zn, and Cu showed highest accumulation. Also, fish samples from Emam Hassan Port were more contaminated than other stations. Ecological indexes values have revealed a low to moderate elemental pollution of sediment and fish samples in the north part of the Persian Gulf.
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Affiliation(s)
- Mehdi Bibak
- Department of Fisheries, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
| | - Masoud Sattari
- Department of Fisheries, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
- Department of Marine Biology, the Caspian Basin Research Center, University of Guilan, Rasht, Iran
| | - Saeid Tahmasebi
- Department of Statistics, Persian Gulf University, Bushehr, Iran
| | - Raheleh Kafaei
- Student Research Committee, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - George A Sorial
- Environmental Engineering Program, Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, 45221-0012, USA
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
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10
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Nugraha WC, Nagai H, Ohira SI, Toda K. Semi-continuous Monitoring of Cr(VI) and Cr(III) during a Soil Extraction Process by Means of an Ion Transfer Device and Graphite Furnace Atomic Absorption Spectroscopy. ANAL SCI 2020; 36:617-620. [PMID: 32115464 DOI: 10.2116/analsci.19sbn02] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Electrodialytic separation of Cr(VI) and Cr(III) followed by graphite furnace atomic absorption spectrometry for monitoring of soil extraction was studied. The sensitivity was improved by in-line purification of the solutions and bi-polar pulse cleaning. The detection limit for both Cr(VI) and Cr(III) was 0.01 μg L-1. The system was successfully used to monitor the concentration change during soil extraction with dual solution line filtration. The results demonstrate the difference in concentration changes with the different sources of Cr(VI).
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Affiliation(s)
- Willy Cahya Nugraha
- Department of Chemistry, Kumamoto University.,Research Unit of Clean Technology, Indonesian Institute of Sciences
| | | | - Shin-Ichi Ohira
- Department of Chemistry, Kumamoto University.,International Research Organization for Advanced Science and Technology, Kumamoto University
| | - Kei Toda
- Department of Chemistry, Kumamoto University
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Qian Y, Cheng C, Feng H, Hong Z, Zhu Q, Kolenčík M, Chang X. Assessment of metal mobility in sediment, commercial fish accumulation and impact on human health risk in a large shallow plateau lake in southwest of China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 194:110346. [PMID: 32120176 DOI: 10.1016/j.ecoenv.2020.110346] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 02/06/2020] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
Sediment heavy metal pollution in the Dianchi Lake has been a long-term environmental problem of concern. This study investigated the lake sediment heavy metal contamination level, mobility, commercial fish metal accumulation and its impact on human health. The results show high As, Hg and Cd concentration in the sediment, while Pb and Cr contamination are insignificant. Sediment sequential extraction analysis shows that Hg in sediment has the highest portion of mobile fraction, followed by As, while the portion of mobile fractions of Cd, Pb and Cr in sediment is very low. The high concentrations of Hg and As in surface water and porewater were consistent with the chemical fraction composition of the two elements in sediment. Three major commercial fish species, Culterichthys erythropterus, Carassius auratus and Hypophthalmichthys molitrix, were collected for analysis of metal concentrations in their muscles. Among the same size of fish, C. auratus has the highest As concentration due to its bottom habitat and omnivorous feeding habits. On the other hand, C. erythropterus has the highest Hg concentration due to its relatively high trophic level position. The average THQ value of metals in fish tissue decrease in the order of As > Hg > Pb > Cd > Cr and the total THQ of average metal concentration in fish species decreased in the order of C. auratus > C. erythropterus > H. molitrix. Both THQ and total THQ is below 1, suggested no non-carcinogenic human health risk of fish consumption. However, TR of As in C. auratus was above 1.00E-04 threshold value, indicated potential carcinogenic human health risk. The results from this study indicate that although moderately to heavily contamination of Hg, As, and Cd occurred in Dianchi Lake sediment, only Hg and As tend to transport to surface water and accumulate in commercial fish due to their higher mobility in sediment.
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Affiliation(s)
- Yu Qian
- School of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, 650091, China
| | - Changlei Cheng
- Analysis and Measurements Center of Yunnan Provincial Non-ferrous Geology Bureau, Kunming, Yunnan, 650051, China
| | - Huan Feng
- Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ, 07043, USA
| | - Zijin Hong
- School of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, 650091, China
| | - Qingzhi Zhu
- School of Marine and Atmospheric Science, State University of New York, Stony Brook, NY, 11794, USA
| | - Marek Kolenčík
- Department of Soil Science and Geology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Nitra, 94976, Slovak Republic
| | - Xuexiu Chang
- School of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, 650091, China.
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12
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Kleemann N, Torres DP, Ribeiro AS, Bamberg AL. Cold finger with semi closed reflux system for sample preparation aiming at Al, Ca, Cr, Cu, Fe, K, Mg, Mn, Ni, V and Zn determination in Drinking Water Treatment Sludge by MIP OES. Anal Chim Acta 2020; 1096:9-17. [PMID: 31883596 DOI: 10.1016/j.aca.2019.10.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 10/16/2019] [Accepted: 10/26/2019] [Indexed: 11/28/2022]
Abstract
This study presents method development and optimization, based on statistical approaches, of an alternative sample preparation methodology for Drinking Water Treatment Sludge, through decomposition in semi closed system with cold finger, aiming at the determination of Al, Ca, Cr, Cu, Fe, K, Mg, Mn, Ni, V and Zn by microwave induced plasma optical emission spectrometry. This system was employed to decompose three different Drinking Water Treatment Sludge samples, from three different treatment plants. The compromise conditions were 250 mg of dried sample, 5 mL of HNO3, 1 mL of H2SO4 and heating at 225 °C for 150 min. After the digestion, 1% of cesium and lanthanum chloride buffer solution was added to all samples and standard solutions. The accuracy of the proposed sample preparation method was evaluated by analyzing a sediment certified reference material (CRM NIST 1646a) as well as the spike recovery technique. The recoveries ranged from 83% to 119% for all elements, and the found concentrations for the CRM agreed with the respective certified values, at 95% confidence level. The correlation coefficients for all investigated elements were higher than 0.999. The method LOQ values were adequate and complied with the Drinking Water Treatment Sludge regulation avaliable, ranging from 0.3 (V) and 32 (Zn) μg L-1, or 0.1 (V) to 13 (Zn) mg kg-1. The digestion procedure in acidic medium showed suitable to measure the analytes in the investigated matrix by microwave induced plasma optical emission spectrometry.
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Affiliation(s)
- Natiele Kleemann
- Federal University of Rio Grande, FURG, Postgraduate Program in Technological and Environmental Chemistry, Chemistry and Food Department, 96203-900, Carreiros, Rio Grande, Rio Grande do Sul, Brazil.
| | - Daiane Placido Torres
- Brazilian Agricultural Research Corporation, Embrapa Clima Temperado, 96010-971, Rio Grande do Sul, Pelotas, BR 392, Km 78, Brazil.
| | - Anderson Schwingel Ribeiro
- Federal University of Pelotas, UFPel, Postgraduate Program in Chemistry, Chemistry Department, 96900-010, Capão Do Leão, Rio Grande do Sul, Brazil.
| | - Adilson Luís Bamberg
- Brazilian Agricultural Research Corporation, Embrapa Clima Temperado, 96010-971, Rio Grande do Sul, Pelotas, BR 392, Km 78, Brazil.
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Park J, Kim JY, Lee K, Kim MS, Kim MJ, Choi JW. Comparison of acid extraction and total digestion methods for measuring Cd isotope ratios of environmental samples. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 192:41. [PMID: 31834560 DOI: 10.1007/s10661-019-8017-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
To evaluate the pretreatment processing for Cd isotope analysis of environmental samples, acid extractions and total digestions were examined with various environmental certified reference materials. Four certified reference material samples, including fly ash, polluted soil, domestic sludge, and industrial sludge, were digested by six different acid extraction and total digestion methods, and then Cd was separated to remove other matrix by anion-exchange column. The Cd recovery rates of the acid extraction methods were 2.6-89.1%, while those of the total digestion methods were 21.6-88.7%. In these results, the Cd recovery rates were dependent on the sample type. More than 80% of the Cd in the polluted soil and domestic sludge samples could be recovered regardless of the decomposition method, except one method. On the other hand, the Cd recovery rate from fly ash was low when total digestion was performed using a HF mixture, and the recovery rate by total digestion methods for industrial sludge was higher than that by acid extraction. In our results, Cd isotope ratios tended to be more positive by increasing the Cd recovery rates, suggesting that the light isotope of Cd was decomposed preferentially during the decomposition procedures. However, when more than 80% of the Cd in the samples was recovered, the Cd isotope ratios were determined to be similar. This indicated that at least 80% of the Cd should be recovered from environmental samples to accurately measure the Cd isotopic ratio of environmental samples.
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Affiliation(s)
- Jaeseon Park
- Environmental Measurement & Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research, Hwangyoun-ro 42, Seo-gu, Incheon, 22689, South Korea
- Department of Earth System Sciences, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Jee-Young Kim
- Environmental Measurement & Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research, Hwangyoun-ro 42, Seo-gu, Incheon, 22689, South Korea
- Department of Earth System Sciences, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Khanghyun Lee
- Unit of Antarctic K-route Expedition, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, South Korea
| | - Min-Seob Kim
- Environmental Measurement & Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research, Hwangyoun-ro 42, Seo-gu, Incheon, 22689, South Korea
| | - Myoung-Jin Kim
- Environmental Measurement & Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research, Hwangyoun-ro 42, Seo-gu, Incheon, 22689, South Korea
| | - Jong-Woo Choi
- Environmental Measurement & Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research, Hwangyoun-ro 42, Seo-gu, Incheon, 22689, South Korea.
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14
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Comparison of three methods for measuring heavy metals in calcareous soils of Iran. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1578-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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15
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Sun Z, Wu B, Guo P, Wang S, Guo S. Enhanced electrokinetic remediation and simulation of cadmium-contaminated soil by superimposed electric field. CHEMOSPHERE 2019; 233:17-24. [PMID: 31163304 DOI: 10.1016/j.chemosphere.2019.05.233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/23/2019] [Accepted: 05/27/2019] [Indexed: 05/09/2023]
Abstract
The 'focusing' effect has become a limiting factor for the removal of heavy metals from soils by electrokinetic (EK) remediation. A superimposed electric field EK (SE-EK) method is proposed to address this problem. Two sets of fixed electrodes placed at different positions were switched to move the 'focusing' region of Cd to the cathode by controlling the location of the pH jumping front. Moreover, a model was established to simulate and optimize the process of Cd transport in soil under the superimposed electric field. Results showed that, after 35 d of SE-EK remediation, Cd was mainly accumulated in the soil section near the cathode (S5), where the acid and alkaline fronts converged. The removal rate of Cd in the soil sections from S1 to S4 reached 87.60%, which was 6.13 times that in conventional EK remediation. Meanwhile, the energy utilization efficiency in SE-EK was 6.38 times that in conventional EK. The pH changes and Cd distribution during the SE-EK experiment were simulated well, with good agreement between the modeled and experimental data. The removal of Cd in SE-EK remediation could therefore be optimized through simulating the distribution of Cd in five situations with differences in switching time and electrode position. This research provides valuable technical support for effective EK remediation of heavy metal contaminated soil.
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Affiliation(s)
- Zicheng Sun
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bo Wu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | | | - Sa Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Shuhai Guo
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
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16
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Li Y, Wu H, Shen Y, Wang C, Wang P, Zhang W, Gao Y, Niu L. Statistical determination of crucial taxa indicative of pollution gradients in sediments of Lake Taihu, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 246:753-762. [PMID: 30623831 DOI: 10.1016/j.envpol.2018.12.087] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 12/27/2018] [Accepted: 12/28/2018] [Indexed: 06/09/2023]
Abstract
In order to accurately monitor the changes in a freshwater ecosystem in response to anthropogenic stressors, microbe-environment correlations and microbe-microbe interactions were combined to determine crucial indicator taxa in contaminated sediments. The diversity, composition, and co-occurrence pattern of bacterial communities in 23 sediment samples collected from Lake Taihu were explored using 16S rRNA amplicon sequencing analysis. Fisher's exact test showed that the cluster analyses of samples could show a direct correlation between the relative abundance of bacterial communities and the physicochemical properties of the sediment (P < 0.0001), suggesting that bacterial communities can be used to monitor contamination gradients in freshwater sediments. According to the microbe-environment correlation, 24 orders and 60 families were initially identified via indicator species analysis as indicator taxa of different pollution levels. The co-occurrence network further showed that topological features of bacterial communities were clearly different at different pollution levels, although the diversity and composition of bacterial communities displayed similarities between minimally and moderately polluted sites. Indicator taxa were then screened for keystone species, which co-occurrence relationships showed the high degree and low betweenness centrality values (i.e. degree >5, betweenness centrality <1000) of the network. Nine orders and 13 families were finally extracted as crucial indicator taxa of the different pollution levels in eutrophic Lake Taihu. Obtaining crucial indicator taxa from environmental sequences allows to trace increasing levels of pollution in aquatic ecosystems and provides a novel mean to monitor watersheds sensitive to anthropic influences.
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Affiliation(s)
- Yi Li
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Hainan Wu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Yun Shen
- Department of Civil & Environmental Engineering, University of Michigan, 1351 Beal Ave, 219 EWRE Bldg, Ann Arbor, MI, 48109-2125, USA
| | - Chao Wang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Peifang Wang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Wenlong Zhang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China.
| | - Yu Gao
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Lihua Niu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, PR China
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17
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18
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Wen J, Zeng G. Chemical and biological assessment of Cd-polluted sediment for land use: The effect of stabilization using chitosan-coated zeolite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 212:46-53. [PMID: 29427941 DOI: 10.1016/j.jenvman.2018.01.080] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/16/2018] [Accepted: 01/28/2018] [Indexed: 06/08/2023]
Abstract
Disposal of dredged sediment contaminated with heavy metals on site or in landfills inevitably causes leaching of metals that generate new environmental problems. In this study, we investigated the effectiveness of stabilizing heavy metal Cd in sediment taken from Dongting Lake, China, using a chitosan-coated zeolite, and assessed the feasibility of reusing the stabilized sediment in river bank soil based on chemical and biological analyses. Results showed that the addition of chitosan-coated zeolite significantly reduced acid-exchangeable Cd by 8% in the dredged sediment and 7% in a sediment-soil mixture. Cadmium leachability was greatly reduced in the amended sediment or sediment-soil mixture. Toxicity bioassay using Eisenia fetida showed the mortality rate of worms reduced by 16% in sediment-soil mixture with a Cd concentration of 550 mg/kg and by 17% under a Cd concentration of 250 mg/kg, both with the addition of modified zeolite. Moreover, assimilation of Cd in the earthworms was decreased by a maximum of 36 mg/kg in the sediment-soil mixture with zeolite amendment. These results indicate that the reuse of Cd-contaminated sediment following chitosan-coated zeolite modification is a feasible option for treating the dredged sediment, and could thus benefit both aquatic and terrestrial systems.
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Affiliation(s)
- Jia Wen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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19
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Kim M, Corkhill CL, Hyatt NC, Heo J. Development, characterization and dissolution behavior of calcium-aluminoborate glass wasteforms to immobilize rare-earth oxides. Sci Rep 2018; 8:5320. [PMID: 29593253 PMCID: PMC5871900 DOI: 10.1038/s41598-018-23665-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 03/12/2018] [Indexed: 11/09/2022] Open
Abstract
Calcium-aluminoborate (CAB) glasses were developed to sequester new waste compositions made of several rare-earth oxides generated from the pyrochemical reprocessing of spent nuclear fuel. Several important wasteform properties such as waste loading, processability and chemical durability were evaluated. The maximum waste loading of the CAB compositions was determined to be ~56.8 wt%. Viscosity and the electrical conductivity of the CAB melt at 1300 °C were 7.817 Pa·s and 0.4603 S/cm, respectively, which satisfies the conditions for commercial cold-crucible induction melting (CCIM) process. Addition of rare-earth oxides to CAB glasses resulted in dramatic decreases in the elemental releases of B and Ca in aqueous dissolution experiments. Normalized elemental releases from product consistency standard chemical durability test were <3.62·10-5 g·m-2 for Nd, 0.009 g·m-2 for Al, 0.067 g·m-2 for B and 0.073 g·m-2 for Ca (at 90, after 7 days, for SA/V = 2000m-1); all meet European and US regulation limits. After 20 d of dissolution, a hydrated alteration layer of ~ 200-nm-thick, Ca-depleted and Nd-rich, was formed at the surface of CAB glasses with 20 mol% Nd2O3 whereas boehmite [AlO(OH)] secondary crystalline phases were formed in pure CAB glass that contained no Nd2O3.
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Affiliation(s)
- Miae Kim
- Department of Materials Science and Engineering/Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, South Korea.,NucleUS Immobilisation Science Laboratory, Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
| | - Claire L Corkhill
- NucleUS Immobilisation Science Laboratory, Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
| | - Neil C Hyatt
- NucleUS Immobilisation Science Laboratory, Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
| | - Jong Heo
- Department of Materials Science and Engineering/Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, South Korea.
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20
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Liang G, Zhang B, Lin M, Wu S, Hou H, Zhang J, Qian G, Huang X, Zhou J. Evaluation of heavy metal mobilization in creek sediment: Influence of RAC values and ambient environmental factors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:1339-1347. [PMID: 28738527 DOI: 10.1016/j.scitotenv.2017.06.238] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/25/2017] [Accepted: 06/26/2017] [Indexed: 06/07/2023]
Abstract
The risk assessment code (RAC) is a common method for assessing heavy metal (HM) mobility and their potential health risks, based on HM total concentration and chemical speciation. In this study, both the RAC and the influence of ambient environmental factors were investigated in a river sediment system. Sixty-eight sediment samples were collected from the main river system in Shanghai, China. The total concentration and chemical speciation of Cu, Zn, Ni, Pb, Cd, Cr, As, and Hg were determined in the samples. The influence of sediment environmental factors, such as acid-volatile sulfide (AVS), Fe & Mn, and total organic carbon (TOC), on total metal concentrations and speciation was also investigated. The relationship between the main environmental media and distribution of HMs was discussed using PCA and NMDS. The transfer-transformation behaviors of Pb, Ni, and Cr were mainly controlled by AVS and TOC while Zn, Cu, and Cd were influenced by Fe & Mn and TOC. The relationship between the RAC value of HM and environmental factors revealed that 7% of Cr, 23% of Ni, and 15% of Pb had a high risk of mobility at TOC values below 3.5% and sulfite contents below 10mmol/kg. In comparison, 29%, 10%, and 10% of Zn, Cu, and Cd, respectively, had a high risk of mobility at TOC<3.5% and Fe & Mn content >4×105mg/kg. Evidently, the chemical fractions of HM had a strong dependence on the S, Fe, Mn, and organic compounds in the sediment. This study provides a promising pathway for the rapid evaluation of potential risks from HMs in river sediments.
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Affiliation(s)
- Guannan Liang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Bo Zhang
- Center of Solid Waste Management, Shanghai 200235, China
| | - Mao Lin
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Simiao Wu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Hao Hou
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Jia Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Guangren Qian
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xin Huang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Jizhi Zhou
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
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21
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The influence of macroelements on energy consumption during periodic power electrokinetic remediation of heavy metals contaminated black soil. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.142] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Matern K, Kletti H, Mansfeldt T. Chemical and mineralogical characterization of chromite ore processing residue from two recent Indian disposal sites. CHEMOSPHERE 2016; 155:188-195. [PMID: 27111471 DOI: 10.1016/j.chemosphere.2016.04.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 03/24/2016] [Accepted: 04/04/2016] [Indexed: 05/07/2023]
Abstract
Chromite ore processing residue (COPR) is a hazardous waste. Nevertheless, deposition of COPR in uncontrolled surface landfills is still common practice in some countries. Whereas old (between at least 40 and 180 years) COPR from the temperate zone has been intensively investigated, information on COPR in other regions is restricted. Relatively young (<25 years) COPR samples obtained from two abandoned landfill sites in India were investigated by a modified total microwave digestion method, X-ray powder diffraction (XRPD), and scanning electron microscopy (SEM) in order to determine their chemical and mineralogical nature. By the use of microwave digestion with acid mixtures of HNO3, H3PO4, and HBF4 (5:3:2 vol), COPR was completely dissolved and element contents similar to those obtained by X-ray fluorescence were found. Total Cr contents of the two COPR accounted for 81 and 74 g kg(-1), of which 20 and 13% were present in the carcinogenic hexavalent form (CrVI). Apart from the common major mineral phases present in COPR reported earlier, a further Cr host mineral, grimaldiite [CrO(OH)], could be identified by XRPD and SEM. Additionally, well soluble Na2CrO4 was present. Improving the effectiveness of chromite ore processing and preventing the migration of Cr(VI) into water bodies are the main challenges when dealing with these COPR.
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Affiliation(s)
- Katrin Matern
- Soil Geography/Soil Science, Department of Geosciences, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany
| | - Holger Kletti
- F.A. Finger-Institut für Baustoffkunde, Bauhaus-Universität Weimar, Coudraystraße 11, 99421 Weimar, Germany
| | - Tim Mansfeldt
- Soil Geography/Soil Science, Department of Geosciences, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany.
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Saqib N, Bäckström M. Distribution and leaching characteristics of trace elements in ashes as a function of different waste fuels and incineration technologies. J Environ Sci (China) 2015; 36:9-21. [PMID: 26456601 DOI: 10.1016/j.jes.2015.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/17/2015] [Accepted: 03/20/2015] [Indexed: 06/05/2023]
Abstract
Impact of waste fuels (virgin/waste wood, mixed biofuel (peat, bark, wood chips) industrial, household, mixed waste fuel) and incineration technologies on partitioning and leaching behavior of trace elements has been investigated. Study included 4 grate fired and 9 fluidized boilers. Results showed that mixed waste incineration mostly caused increased transfer of trace elements to fly ash; particularly Pb/Zn. Waste wood incineration showed higher transfer of Cr, As and Zn to fly ash as compared to virgin wood. The possible reasons could be high input of trace element in waste fuel/change in volatilization behavior due to addition of certain waste fractions. The concentration of Cd and Zn increased in fly ash with incineration temperature. Total concentration in ashes decreased in order of Zn>Cu>Pb>Cr>Sb>As>Mo. The concentration levels of trace elements were mostly higher in fluidized boilers fly ashes as compared to grate boilers (especially for biofuel incineration). It might be attributed to high combustion efficiency due to pre-treatment of waste in fluidized boilers. Leaching results indicated that water soluble forms of elements in ashes were low with few exceptions. Concentration levels in ash and ash matrix properties (association of elements on ash particles) are crucial parameters affecting leaching. Leached amounts of Pb, Zn and Cr in >50% of fly ashes exceeded regulatory limit for disposal. 87% of chlorine in fly ashes washed out with water at the liquid to solid ratio 10 indicating excessive presence of alkali metal chlorides/alkaline earths.
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Affiliation(s)
- Naeem Saqib
- Department of Science and Technology, Man-Technology-Environment Research Centre, Örebro University, SE-701 82 Örebro, Sweden.
| | - Mattias Bäckström
- Department of Science and Technology, Man-Technology-Environment Research Centre, Örebro University, SE-701 82 Örebro, Sweden
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Wang Y, Pan Y, Zhang L, Yue Y, Zhou J, Xu Y, Qian G. Can washing-pretreatment eliminate the health risk of municipal solid waste incineration fly ash reuse? ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 111:177-184. [PMID: 25450931 DOI: 10.1016/j.ecoenv.2014.09.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 09/03/2014] [Accepted: 09/10/2014] [Indexed: 06/04/2023]
Abstract
Although the reuse of washing-pretreated MSWI fly ash bas been a hot topic, the associated risk is still an issue of great concern. The present study investigated the influence of washing-pretreatment on the total contents and bioaccessibility of heavy metals in MSWI fly ash. Furthermore, the study incorporated bioaccessibility adjustment into probabilistic risk assessment, to quantify the health risk from multi-pathway exposure to the concerned chemicals as a result of reusing washed MSWI fly ash. The results revealed that both water-washing and acid-washing process have resulted in the concentrated heavy metal content, and have reduced the bioaccessibility of heavy metals. Besides, the acid-washing process increased the cancer risk in most cases, while the effect of water-washing process was uncertain. However, both water-washing and acid-washing pretreatment could decrease the hazard index based on bioaccesilbility. Despite the uncertainties accompanying these procedures, the results indicated that, in this application scenario, only water-washing or acid-washing process cannot reduce the actual risk from all samples to acceptable level, especially for cancer risk.
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Affiliation(s)
- Yao Wang
- Department of Environmental Science and Engineering, Shanghai University, Shanghai 200444, China; Shanghai Institute of Geological Survey, Shanghai 200072, China
| | - Yun Pan
- Department of Environmental Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Lingen Zhang
- Department of Environmental Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Yang Yue
- Department of Environmental Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Jizhi Zhou
- Department of Environmental Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Yunfeng Xu
- Department of Environmental Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Guangren Qian
- Department of Environmental Science and Engineering, Shanghai University, Shanghai 200444, China.
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Vithanage M, Rajapaksha AU, Oze C, Rajakaruna N, Dissanayake CB. Metal release from serpentine soils in Sri Lanka. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:3415-29. [PMID: 24464398 DOI: 10.1007/s10661-014-3626-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 01/09/2014] [Indexed: 05/14/2023]
Abstract
Ultramafic rocks and their related soils (i.e., serpentine soils) are non-anthropogenic sources of metal contamination. Elevated concentrations of metals released from these soils into the surrounding areas and groundwater have ecological-, agricultural-, and human health-related consequences. Here we report the geochemistry of four different serpentine soil localities in Sri Lanka by coupling interpretations garnered from physicochemical properties and chemical extractions. Both Ni and Mn demonstrate appreciable release in water from the Ussangoda soils compared to the other three localities, with Ni and Mn metal release increasing with increasing ionic strengths at all sites. Sequential extraction experiments, utilized to identify "elemental pools," indicate that Mn is mainly associated with oxides/(oxy)hydroxides, whereas Ni and Cr are bound in silicates and spinels. Nickel was the most bioavailable metal compared to Mn and Cr in all four soils, with the highest value observed in the Ussangoda soil at 168 ± 6.40 mg kg(-1) via the 0.01-M CaCl2 extraction. Although Mn is dominantly bound in oxides/(oxy)hydroxides, Mn is widely dispersed with concentrations reaching as high as 391 mg kg(-1) (Yudhaganawa) in the organic fraction and 49 mg kg(-1) (Ussangoda) in the exchangeable fraction. Despite Cr being primarily retained in the residual fraction, the second largest pool of Cr was in the organic matter fraction (693 mg kg(-1) in the Yudhaganawa soil). Overall, our results support that serpentine soils in Sri Lanka offer a highly labile source of metals to the critical zone.
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Affiliation(s)
- Meththika Vithanage
- Chemical and Environmental Systems Modeling Research Group, Institute of Fundamental Studies, Kandy, Sri Lanka,
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Pan Y, Wu Z, Zhou J, Zhao J, Ruan X, Liu J, Qian G. Chemical characteristics and risk assessment of typical municipal solid waste incineration (MSWI) fly ash in China. JOURNAL OF HAZARDOUS MATERIALS 2013; 261:269-76. [PMID: 23939207 DOI: 10.1016/j.jhazmat.2013.07.038] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 07/16/2013] [Accepted: 07/17/2013] [Indexed: 05/18/2023]
Abstract
The release of heavy metals in municipal solid waste incineration (MSWI) fly ash has become a worrying issue while fly ash is utilized or landfilled. This work investigated the potential mobility of heavy metals in the fly ashes from 15 typical MSWI plants in Chinese mainland by the characterization of distribution, chemical speciation and leaching behavior of heavy metals. The results showed that total content of heavy metals decreased in the order Zn>Pb>Cu>Cr>Ni>Cd in samples. The toxicity characteristics leaching procedure (TCLP) of fly ash indicated that the amount of leached Cd in 67% of samples exceeded the regulated limit. Also, the excess amount of leached Zn and Pb was observed in 40% and 53% of samples, respectively. The chemical speciation analysis revealed that this excess of heavy metal leached in TCLP was contributed to the high content of acid soluble fraction (F1) and reducible fraction (F2) of heavy metal. Moreover, the great positive relevance between leaching behavior of heavy metals and F1 fraction was supported by principal component analysis (PCA). Risk assessment code (RAC) results suggested that Cd and Pb showed a very high risk class to the environment.
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Affiliation(s)
- Yun Pan
- School of Environmental and Chemical Engineering, Shanghai University, No. 99, Shangda Road, Shanghai 200444, PR China
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Chand V, Prasad S. ICP-OES assessment of heavy metal contamination in tropical marine sediments: A comparative study of two digestion techniques. Microchem J 2013. [DOI: 10.1016/j.microc.2012.11.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Franz C, Makeschin F, Weiß H, Lorz C. Geochemical signature and properties of sediment sources and alluvial sediments within the Lago Paranoá catchment, Brasilia DF: a study on anthropogenic introduced chemical elements in an urban river basin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 452-453:411-420. [PMID: 23542435 DOI: 10.1016/j.scitotenv.2013.02.077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 02/12/2013] [Accepted: 02/19/2013] [Indexed: 06/02/2023]
Abstract
One of the largest urban agglomerations in Brazil is the capital Brasilia and its surrounding area. Due to fast urban sprawl and accelerated land use changes, available water supplies are near their limits. The water supply depends largely on surface water collected in reservoirs. There are increasing concerns regarding water shortages due to sediment aggradations, and of water quality due to geochemical modification of sediments from human activities. The concentration of 18 chemical elements and five sediment properties was analyzed from different potential land-based sediment sources and deposited alluvial sediment within the Lago Paranoà catchment. The goal of this study was to assess the distribution of chemical elements and geochemical/physical properties of potential sediment sources in the Lago Paranoá catchment. Principal component analysis and hierarchical cluster analysis were used to investigate the influence of different land use types on the geochemistry of sediments. Geochemical fingerprints of anthropogenic activities were developed based on the results of the cluster analysis grouping. The anthropogenic input of land use specific geochemical elements was examined and quantified by the calculation of enrichment factors using the local geological background as reference. Through comparison of the geochemical signature of potential sediment sources and alluvial sediments of the Lago Paranoá and sub-catchments, the relative contribution of land use specific sediment sources to the sediment deposition of the main water reservoir were estimated. The existing findings suggest a strong relationship between land use and quantifiable features of sediment geochemistry and indicate that urban land use had the greatest responsibility for recent silting in the Lago Paranoá. This assessment helps to characterize the role of human activities in mixed-used watersheds on sediment properties, and provides essential information to guide management responses towards more effective source-reduction strategies.
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Affiliation(s)
- C Franz
- Institute of Soil Science and Site Ecology, TU Dresden, Tharandt, Germany.
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29
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Ultrasound-assisted extraction of gold and silver from environmental samples using different extractants followed by electrothermal-atomic absorption spectrometry. Microchem J 2011. [DOI: 10.1016/j.microc.2010.07.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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A novel total reflection X-ray fluorescence procedure for the direct determination of trace elements in petrochemical products. Anal Bioanal Chem 2010; 399:927-33. [DOI: 10.1007/s00216-010-4352-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 10/15/2010] [Accepted: 10/17/2010] [Indexed: 10/18/2022]
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31
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Afonso DD, Arslan Z, Bednar AJ. Assessment of matrix-dependent analyte stability and volatility during open-vessel sample dissolution for arsenic, cadmium, mercury and selenium. Mikrochim Acta 2009; 167:53-59. [PMID: 20383291 DOI: 10.1007/s00604-009-0218-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effects of calcium and magnesium (as nitrates) and phosphorous (as hydrogen phosphate) were investigated on the stability of As, Cd, Hg, and Se during open-vessel dissolution in Teflon vessels. Samples of mainly inorganic and biological matrices were dissolved in screw-capped Teflon tubes in HNO(3) only or in a mixture of HNO(3)-HF. The caps were then removed and the solutions were simultaneously evaporated at 120 °C to near dryness without drying the contents (Method I) or to complete dryness with extended heating for 20 min at dryness (Method II). ICP-MS analysis indicated that the stabilities of Se and Hg were highly influenced by Ca, Mg and PO(4) content in the sample. Arsenic (As) and Cd did not show any significant instability or volatility. Selenium was lost in Method II from biological samples containing trace levels of Ca, Mg and PO(4). Mercury was unstable during heating in all samples, except bone ash for which no significant loss was detected in Method I. Losses observed for Hg and Se were consistent with Ca, Mg and PO(4) deficiency in the samples and hence indicated that nitrate and hydrogen phosphate salts of these matrix elements do improve stability of the relatively volatile elements during open-vessel dissolution in teflon vessels. While Se was effectively stabilized with sub-per cent levels of Ca, Mg and PO(4), Hg due its high volatility required significantly higher levels of Ca and PO(4) in the bone ash.
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Affiliation(s)
- Domingos D Afonso
- Environmental Science Ph.D. Program, Jackson State University, Jackson, MS 39217, USA
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Al-Harahsheh M, Kingman S, Somerfield C, Ababneh F. Microwave-assisted total digestion of sulphide ores for multi-element analysis. Anal Chim Acta 2009; 638:101-5. [DOI: 10.1016/j.aca.2009.02.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2008] [Revised: 02/08/2009] [Accepted: 02/09/2009] [Indexed: 11/30/2022]
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33
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Oshita K, Motomizu S. Development of Chelating Resins and Their Ability of Collection and Separation for Metal Ions. BUNSEKI KAGAKU 2008. [DOI: 10.2116/bunsekikagaku.57.291] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Koji Oshita
- Department of International Conservation Studies for Cultural Properties, Faculty of Cultural Properties, Kibi International University
| | - Shoji Motomizu
- Chemistry and Biochemistry, Graduate School of Natural Science and Technology & Department of Chemistry, Faculty of Science
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Srogi K. Microwave‐Assisted Sample Preparation of Coal and Coal Fly Ash for Subsequent Metal Determination. ANAL LETT 2007. [DOI: 10.1080/00032710600867713] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Wang J, Nakazato T, Sakanishi K, Yamada O, Tao H, Saito I. Microwave digestion with HNO3/H2O2 mixture at high temperatures for determination of trace elements in coal by ICP-OES and ICP-MS. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2004.03.040] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Microwave-assisted versus conventional decomposition procedures applied to a ceramic potsherd standard reference material by inductively coupled plasma atomic emission spectrometry. Anal Chim Acta 2004. [DOI: 10.1016/s0003-2670(03)00357-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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