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Abdelmonem IM, Emara AM, Elsharma EM. Utilizing low-cost purple coneflower (Echniacea purpurea) marc for competitive sorption of 152+154Eu(III), 60Co(II) and 134Cs(I) radionuclides. J Environ Radioact 2024; 275:107426. [PMID: 38522413 DOI: 10.1016/j.jenvrad.2024.107426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/22/2024] [Accepted: 03/16/2024] [Indexed: 03/26/2024]
Abstract
Echinacea purpurea marc (EPM), a residual of echinacea herb after the extraction process, was used as a natural low-cost sorbent for competitive sorption of 152+154Eu(III), 60Co(II) and 134Cs(I) radionuclides. The EPM was ground to prepare it for use in the sorption process. The variables influencing the sorption process were assessed, including pH, contact time, concentrations of metal ions, and temperature. EPM was characterized by different analytical instruments such as FTIR, SEM, XRD, and DTA/TGA. pH 4.0 was selected as the ideal pH value for competitive sorption of the studied ions. Adsorption kinetics data found that the sorption followed a pseudo-second-order model. The adsorption isotherm data was significantly better suited by the Langmuir isotherms in the case of Eu(III) ions while following Freundlich in the case of Co(II) and Cs(I) ions. Positive ΔHo values confirm the endothermic character of metal ion sorption onto EPM. The loading efficiencies of Eu(III), Co(II), and Cs(I) ions in the EPM column were 66.67%, 9.59%, and 4.81%, respectively. The EPM is a cost-effective and efficient separation of Eu(III) ions more than Cs(I) and Co(II) ions. Therefore, in the future, it will be a starting point for the separation of trivalent elements of lanthanide ions.
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Affiliation(s)
- Islam M Abdelmonem
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo, 13759, Egypt
| | - Amr M Emara
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo, 13759, Egypt
| | - Emad M Elsharma
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo, 13759, Egypt.
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2
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Hu Y, Chen J, Hui D, Li J, Yao X, Zhang D, Deng Q. Soil acidification suppresses phosphorus supply through enhancing organomineral association. Sci Total Environ 2023; 905:167105. [PMID: 37717755 DOI: 10.1016/j.scitotenv.2023.167105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
It has long been assumed that soil acidification increases reactive iron and/or aluminum (Fe/Al) oxides and promotes Pi sorption onto mineral surfaces, resulting in a decrease in Pi. However, this assumption has seldom been tested in long-term field experiments. Using a 12-year acid addition experiment in a tropical forest, we demonstrated that soil acidification increased the content of noncrystalline Fe and Al oxides by 16.3 % and 27.7 %, respectively; whereas it did not alter the absorbed Pi pool and Pi sorption capacity. Furthermore, soil acidification increased the Fe/Al-bound organic matter content by 82.5 %, causing a 54.9 % reduction in Pi desorption, a 42.3 % decrease in soluble Pi content, and a 9.2 % increase in occluded Pi content. Our findings demonstrate that soil acidification reduces Pi bioavailability by repressing Pi desorption rather than enhancing Pi sorption. These results could be attributed to the enhanced organomineral association, which competes for sorption sites with Pi and promotes the Pi occlusion. However, the interactions between organomineral-Pi have not been incorporated into global land models, which may overestimate ecosystem productivity under future acid rain scenarios.
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Affiliation(s)
- Yuanliu Hu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China; South China National Botanical Garden, Guangzhou, Guangdong 510650, China; University of Chinese Academy of Sciences, Beijing 100039, China; Department of Agroecology, Aarhus University, 8830 Tjele, Denmark
| | - Ji Chen
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Department of Agroecology, Aarhus University, 8830 Tjele, Denmark.
| | - Dafeng Hui
- Department of Biological Sciences, Tennessee State University, Nashville, TN 37209, USA
| | - Jianling Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China; South China National Botanical Garden, Guangzhou, Guangdong 510650, China
| | - Xianyu Yao
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China; South China National Botanical Garden, Guangzhou, Guangdong 510650, China
| | - Deqiang Zhang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China; South China National Botanical Garden, Guangzhou, Guangdong 510650, China
| | - Qi Deng
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China; South China National Botanical Garden, Guangzhou, Guangdong 510650, China.
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Zhang Y, Thomas A, Apul O, Venkatesan AK. Coexisting ions and long-chain per- and polyfluoroalkyl substances (PFAS) inhibit the adsorption of short-chain PFAS by granular activated carbon. J Hazard Mater 2023; 460:132378. [PMID: 37643572 DOI: 10.1016/j.jhazmat.2023.132378] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/27/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023]
Abstract
We assessed the competitive adsorption between long-chain and short-chain PFAS and the impact of coexisting ions to understand the mechanisms leading to the early breakthrough of short-chain PFAS from granular activated carbon (GAC) filters. Three pairs of short-chain and long-chain PFAS representing different functional groups were studied using GAC (Filtrasorb 400) in batch systems. In bisolute systems, the presence of long-chain PFAS decreased the adsorption of short-chain PFAS by 30-50% compared to their single solute adsorption capacity (0.22-0.31 mmol/g). In contrast to the partial decrease observed in bisolute systems, the addition of long-chain PFAS to GAC pre-equilibrated with short-chain PFAS completely desorbed all short-chain PFAS from GAC. This suggested that the outermost adsorption sites on GAC were preferentially occupied by short-chain PFAS in the absence of competition but were prone to displacement by long-chain PFAS. The presence of inorganic/organic ions inhibited the adsorption of short-chain PFAS (up to 60%) but had little to no impact on long-chain PFAS, with the inhibitory trend inversely correlated with Kow values. Study results indicated that the displacement of short-chain PFAS by long-chain PFAS and charge neutralization are important mechanisms contributing to the early breakthrough of short-chain PFAS from GAC systems.
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Affiliation(s)
- Yi Zhang
- New York State Center for Clean Water Technology, Stony Brook University, Stony Brook, NY 11794, USA
| | - Amanda Thomas
- New York State Center for Clean Water Technology, Stony Brook University, Stony Brook, NY 11794, USA
| | - Onur Apul
- Department of Civil and Environmental Engineering, University of Maine, Orono, ME 04469, USA
| | - Arjun K Venkatesan
- New York State Center for Clean Water Technology, Stony Brook University, Stony Brook, NY 11794, USA; Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
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Padilla JT, Selim HM, Gaston LA. Modeling the competitive sorption and transport of Ni(II) and Zn(II) in soils: Comparing two multicomponent approaches. J Contam Hydrol 2023; 252:104108. [PMID: 36404181 DOI: 10.1016/j.jconhyd.2022.104108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/25/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
The mobility of contaminants in soil is controlled by sorption reactions which can be affected by the presence of other solutes that compete for sorption sites. The ability to model such effects is necessary for evaluating the environmental risk of a given contaminant. In this study, the competitive sorption and transport of nickel (Ni) and zinc (Zn) in Olivier and Windsor soils was investigated using batch equilibration and miscible displacement experiments. During batch experiments, the sorption of Ni and Zn was mutually reduced in multicomponent systems, indicating that the metal cations compete for sorption sites. When applied concurrently, the retardation of both ions decreased and peak effluent concentrations increased relative to single ion experiments, demonstrating that competition increased the mobility of both ions during miscible displacement experiments. A novel Freundlich-type multicomponent isotherm (CDI) and its kinetic analog (CDIT) were developed and compared to the commonly used SRS isotherm and SRS-based kinetic approach (SRST) in describing the experimental data. The CDI provided a superior description of the competitive batch data, especially at low surface coverage, and may therefore be more applicable to multicomponent sorption than the SRS. The Olivier and Windsor transport data were best described by the CDIT and SRST, respectively, however, both models generally described the data well. Since both approaches gave comparable descriptions of the transport data while the CDI outperformed the SRS in describing the batch data, the CDI/CDIT may be more generally applicable to multicomponent systems and warrants further study.
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Affiliation(s)
- Joshua T Padilla
- USDA Agricultural Research Service, Coastal Plain Soil, Water & Plant Research Center, 2611 W. Lucas St., Florence, SC 29501, USA.
| | - H Magdi Selim
- School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Lewis A Gaston
- School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
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Zaharia MM, Bucatariu F, Vasiliu AL, Mihai M. Stable and reusable acrylic ion-exchangers. From HMIs highly polluted tailing pond to safe and clean water. Chemosphere 2022; 304:135383. [PMID: 35718040 DOI: 10.1016/j.chemosphere.2022.135383] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
The application of several ion-exchange resins (IExR) with amino and amphoteric functionalities in batch retention of heavy metal ions (HMIs) (Cu(II), Fe(II), Mn(II), Zn(II)) from mono- and multicomponent simulated waters and from real polluted water collected from tailings pond of Tarnita (Suceava, Romania) sterile dump is deeply herein explored. The tested resins exhibited high sorption capacities, as evaluated by atomic absorption spectrometry, results supported by infrared spectroscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy. The effect of pH on the IExR sorption capacity in competitive condition evidenced the optimum pH where IExR sorption efficiency is maximum. Reutilization of IExR in six consecutive sorption/desorption/regeneration cycles showed their renewable sorption properties. Wheat germination tests demonstrated that the Tarnita collected water had a high toxic effect whereas the resulted supernatant after batch sorption was nontoxic. The study shows that HMIs content after IExR sorption is under the admitted maximum level for surface water, and represents an important step on the efforts to solve the environmental problem in Tarnita area, by removing the main contaminants found in the local river water.
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Affiliation(s)
- Marius-Mihai Zaharia
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487, Iasi, Romania
| | - Florin Bucatariu
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487, Iasi, Romania
| | - Ana-Lavinia Vasiliu
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487, Iasi, Romania
| | - Marcela Mihai
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487, Iasi, Romania.
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Chen X, Liang J, Bao L, Gu X, Zha S, Chen X. Competitive and cooperative sorption between triclosan and methyl triclosan on microplastics and soil. Environ Res 2022; 212:113548. [PMID: 35613630 DOI: 10.1016/j.envres.2022.113548] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/13/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
The sorption behavior of single contaminant on microplastics (MPs) has been extensively studied; however, little is known about that in the more actual scenario containing multiple contaminants. In this study, the interaction between triclosan (TCS) and its primary metabolite, methyl triclosan (MTCS) on polyethylene (PE), polystyrene (PS), and soil was investigated. Results indicate that the more hydrophobic MTCS had much higher sorption capacity and affinity than TCS. Competitive sorption between them occurred in most cases and appeared to be concentration-dependent (in the range of 0.1-5 mg TCS/L and 0.01-≤0.05 mg MTCS/L of primary solutes, respectively): more pronounced at low concentrations of primary solute, while progressively weaker with the increase of concentrations. Among the sorbents, MTCS exhibited strong antagonistic effect on TCS sorption for MPs, especially PS, while significant suppression of MTCS sorption by TCS took place for soil and PS rather than PE. Additionally, it is interesting to observe that the presence of TCS substantially facilitated the sorption of MTCS exclusively at high concentrations on both PS and soil, presumably attributed to the solute-multilayer formation. Furthermore, the magnitude of the two effects varied with solution pH: TCS sorption at alkaline pH was the most suppressed by MTCS because the less hydrophobic dissociated TCS tended to be displaced, and the highest cooperative sorption of MTCS with TCS occurred at acidic pH because neutral TCS preferentially adsorbed on sorbent surface could provide additional sorption sites for MTCS. Both competitive and cooperative effects between multiple contaminants may affect their fate and transport, thereby these findings are helpful for assessing the environmental risk of MPs and TCS in soil.
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Affiliation(s)
- Xian Chen
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, 1801 Zhongwu Avenue, Changzhou, 213001, China.
| | - Jingcheng Liang
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, 1801 Zhongwu Avenue, Changzhou, 213001, China.
| | - Lijing Bao
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, 1801 Zhongwu Avenue, Changzhou, 213001, China.
| | - Xuanning Gu
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, 1801 Zhongwu Avenue, Changzhou, 213001, China.
| | - Simin Zha
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, 1801 Zhongwu Avenue, Changzhou, 213001, China.
| | - Xingming Chen
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, 1801 Zhongwu Avenue, Changzhou, 213001, China.
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7
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Wu D, Ren C, Wu C, Li Y, Deng X, Li Q. Mechanisms by which different polar fractions of dissolved organic matter affect sorption of the herbicide MCPA in ferralsol. J Hazard Mater 2021; 416:125774. [PMID: 33857809 DOI: 10.1016/j.jhazmat.2021.125774] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/25/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
Exogenous dissolved organic matter (DOM) modifies the sorption of 4-chloro-2-methylphenoxyacetic acid (MCPA, a polar herbicide) in soil. However, how the chemodiversity and diverse fractions of DOM affect MCPA sorption is still unknown. Here, DOM was extracted from compost and rice straw; the structure-activity correlations between DOM chemodiversity and their effects on MCPA sorption were investigated by redundancy analysis. Moreover, the mechanism involved was explored by spectroscopic techniques, microbeam and modeling. DOM mainly affected MCPA sorption by altering soil surface properties and MCPA complexed form. Hydrophobic neutral (HON) and acid insoluble matter (AIM) were the fractions of DOM that most inhibited MCPA sorption through soil pore blockage, and were related to the humic-like substances with high aromaticity and large molecular weight. The hydrophobic acid fraction (HOA) only showed an intermediate inhibition on the sorption, although the largest competitive sorption occurred. This was because HOA contained abundant aromatic acid and polar groups with moderate polarity. Thus, the reduced effect caused by competitive sorption was partly compensated by the greatest co-sorption by HOA. The hydrophilic matter (HIM) had the weakest inhibition on MCPA sorption, because this fraction was rich in simple sugars, poly- and oligosaccharides, but lacked aryl groups. The results will aid in the risk assessments and prevention of MCPA in DOM-introduced soil.
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Affiliation(s)
- Dongming Wu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Changqi Ren
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Chunyuan Wu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Danzhou 571737, PR China; Hainan Engineering Research Center for Non-Point Source and Heavy Metal Pollution Control, Haikou 571101, PR China.
| | - Yi Li
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Xiao Deng
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Qinfen Li
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Danzhou 571737, PR China; Hainan Key Laboratory of Tropical Eco-Circuling Agriculture, Haikou 571101, PR China.
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Wu W, Huang Y, Lin D, Yang K. Sorption mechanism of naphthalene by diesel soot: Insight from displacement with phenanthrene/p-nitrophenol. J Environ Sci (China) 2021; 106:136-146. [PMID: 34210429 DOI: 10.1016/j.jes.2021.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 06/13/2023]
Abstract
The nonlinear sorption of hydrophobic organic contaminants (HOCs) could be changed to linear sorption by the suppression of coexisting solutes in natural system, resulting in the enhancement of mobility, bioavailability and risks of HOCs in the environment. In previous study, inspired from the competitive adsorption on activated carbon (AC), the displaceable fraction of HOCs sorption to soot by competitor was attributed to the adsorption on elemental carbon fraction of soot (EC-Soot), while the linear and nondisplaceable fraction was attributed to the partition in authigenic organic matter of soot (OM-Soot). In this study, however, we observed that the linear and nondisplaceable fraction of HOC (naphthalene) to a diesel soot (D-Soot) by competitor (phenanthrene or p-nitrophenol) should be attributed to not only the linear partition in OM-Soot, but also the residual linear adsorption on EC-Soot. We also observed that the competition on the surface of soot dominated by external surface was different from that of AC dominated by micropore surface, i.e., complete displacement of HOCs by p-nitrophenol could occur for the micropore surface of AC, but not for the external surface of soot. These observations were obtained through the separation of EC-Soot and OM-Soot from D-Soot with organic-solvent extraction and the sorption comparisons of D-Soot with an AC (ACF300) and a multiwalled carbon nanotube (MWCNT30). The obtained results would give new insights to the sorption mechanisms of HOCs by soot and help to assess their environmental risks.
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Affiliation(s)
- Wenhao Wu
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China
| | - Yun Huang
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China
| | - Daohui Lin
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China
| | - Kun Yang
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China.
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Jiang Y, Zhang Q, Deng X, Nan Z, Liang X, Wen H, Huang K, Wu Y. Single and competitive sorption of sulfadiazine and chlortetracycline on loess soil from Northwest China ☆. Environ Pollut 2020; 263:114650. [PMID: 33618482 DOI: 10.1016/j.envpol.2020.114650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/31/2020] [Accepted: 04/20/2020] [Indexed: 06/12/2023]
Abstract
The fate of veterinary antibiotics (VAs) in soil environment is determined by the hydrophilic performance and solubility of VAs and the type of soil. In this study, sulfadiazine (SDZ) and chlortetracycline (CTC) were selected as target pollutants, and a batch sorption method was used to find out the single and sorption competitive behavior and mechanism of the target pollutants on loess soil. Kinetic studies showed the apparent sorption equilibrium was reached 0-6 h for CTC and 0-12 h for SDZ. The sorption kinetics of VAs on loess soil were fitted well with a pseudo-second order kinetic model. Sorption thermodynamic data indicated the isotherm sorption of both SDZ and CTC on loess soil was fitted well with Freundlich isothermal (R2, 0.960-0.975) and linear models (R2, 0.908-0.976). The sorption affinity of CTC (Kd, 290-1620 L/kg for CTC) was much greater than that of SDZ (Kd, 0.6-4.9 L/kg for SDZ). The results also suggest that SDZ may be easily mobilized or leached from loess soil at neutral and alkaline pH, while CTC may be easily mobilized or leached at neutral pH. The sorption of each single target pollutant on the outer layer complex decreased with increasing ionic strength. Higher initial concentrations resulted in greater sorption capacity of target pollutants on loess soil increased. The sorption capacities of CTC and SDZ in the mixed system were lower than the sorption capacity of each single system, showing a competitive sorption behavior of CTC and SDZ during the sorption process. Overall, CTC showed the highest sorption potential in loess soil, whereas SDZ showed a high leaching risk in loess soil. These findings contribute to understanding the fate of different VAs in loess in the natural environment.
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Affiliation(s)
- Yufeng Jiang
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China.
| | - Qian Zhang
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
| | - Xueru Deng
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
| | - Zhijiang Nan
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
| | - Xinru Liang
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
| | - Hong Wen
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
| | - Kui Huang
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
| | - Yingqin Wu
- Key Laboratory of Petroleum Resources Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
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Suchana S, Passeport E. Optimization of a solid-phase microextraction technique for chloro‑ and nitro- substituted aromatic compounds using design of experiments. J Chromatogr A 2020; 1621:461083. [PMID: 32317103 DOI: 10.1016/j.chroma.2020.461083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 10/24/2022]
Abstract
A rapid and sensitive direct immersion solid-phase microextraction (SPME) technique for the analysis of seven chloro (Cl-) and nitro (NO2-) substituted anilines, toluenes, and nitrobenzenes from small volume (1.5 mL) aqueous samples was optimized for gas chromatography using Design of Experiments (DoE). Screening of the SPME factors was performed by a fractional factorial DoE, and the optimization of influential factors was achieved with a central composite multi-response surface DoE. Extraction time, pre-SPME agitation speed, extraction temperature, and desorption temperature were identified as significant factors and their values were set using a desirability function that maximized the extraction of the seven target analytes. Extraction time and agitation speed showed significant interactions for most analytes (α = 0.05). The relative standard deviations (RSDs) for within-day and between-day analyses were below 8%, suggesting that the method was repeatable and reproducible. The obtained limits of detection were in the low μg/L range (1-10) using a Flame Ionization Detector, far below what is needed for industrial contaminated sites (usually >1 mg/L). The optimized SPME method increased the analyte concentration up to 2-3 orders of magnitude compared with direct GC injection. The optimized SPME method was applied to two groundwater samples from a contaminated site in which the concentrations of three of the target analytes were ranged from 0.06 to 9.42 mg/L with RSDs <11%. When the concentrations of the target analytes in the sample matrix were higher than 0.5 mg/L, a competition for the SPME extraction sites was observed where analytes with higher affinity for the fiber material replaced the analytes with lower affinity. As a result, dilution of highly contaminated samples is recommended. This study provided for the first time an analytical method for the quantification of frequently co-occurring contaminants from the chloro‑ and nitro- substituted aniline, toluene, and nitrobenzene families.
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Affiliation(s)
- Shamsunnahar Suchana
- Department of Civil and Mineral Engineering, University of Toronto, 35 St George Street, M5S 1A4 Toronto, ON, Canada
| | - Elodie Passeport
- Department of Civil and Mineral Engineering, University of Toronto, 35 St George Street, M5S 1A4 Toronto, ON, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, M5S 3E5 Toronto, ON, Canada.
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Frachini E, Constantino LV, Abrao T, Santos MJ. A new approach to evaluate toxic metal transport in a catchment. Environ Monit Assess 2020; 192:234. [PMID: 32170528 DOI: 10.1007/s10661-019-7950-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Competitive sorption and desorption of Cd2+, Pb2+, and Hg2+ onto riverbank and sediment samples of an area impacted by pyritic residue in a Southern Brazilian catchment were evaluated. Although these ions are considered poorly mobile, a new approach has been proposed to assess their behavior and associated risk. In this sense, factorial design and three-dimensional surface methodology are proposed to describe the competitive sorption behavior of the metal ion in the environmental matrix, as well as an innovative mobilization factor (MF) to describe the desorption rate from the integration of the normalized difference of sorption-desorption fluorescence peaks. Sorption was carried out with a central composite factorial design (23) to estimate simultaneous effects of independent variables. Three-dimensional surface analysis indicated increasing Cd2+ equilibrium concentration (Ceq) with Hg2+ and Pb2+ initial concentration (Ci), showing synergistic effect and low Cd2+ affinity to the solid phase. Statistical analysis presented [Formula: see text] as a significant variable for cadmium and lead dynamics, although [Formula: see text] was also significant for Hg2+ releasing to the liquid phase. After integrating the sorption and desorption fluorescence peaks, the MF for Cd2+, Pb2+, and Hg2+ was around 0.2, 0.5, and 0.1 in riverbank sediment, and 0.3, 0.9, and 0.1 in sediment, respectively. Hence, consistent ion mobilization along the river was observed, with Pb2+ mobilizing 9 and 6 times more than Hg2+ and Cd2+, respectively. The transport of ions such as Pb2+ and Hg2+, usually considered immobile, has indeed occurred, causing contamination through the watershed and increasing environmental risk. Graphical Abstract A new approach to determine toxic metal mobilization factor in a river catchment.
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Affiliation(s)
- Emilli Frachini
- Chemistry Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil
| | - Leonel Vinicius Constantino
- Chemistry Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil
| | - Taufik Abrao
- Electrical Engineering Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil
| | - Maria Josefa Santos
- Chemistry Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil.
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12
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Ngigi AN, Ok YS, Thiele-Bruhn S. Biochar-mediated sorption of antibiotics in pig manure. J Hazard Mater 2019; 364:663-670. [PMID: 30396139 DOI: 10.1016/j.jhazmat.2018.10.045] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/26/2018] [Accepted: 10/15/2018] [Indexed: 05/12/2023]
Abstract
Using manure contaminated with antibiotics as fertilizer is a primary source of soil pollution with antibiotics and concomitantly with antibiotic resistance genes (ARG). Bioavailable antibiotics trigger further ARG amplification during manure storage. Consequently it is aimed to facilitate the immobilization of antibiotics in manure. To this end, five biochars derived from pine cone (BCP), rice husk, sewage sludge, digestate and Miscanthus were tested as additional sorbents in liquid pig manure for sulfamethazine, ciprofloxacin, oxytetracycline and florfenicol. Non-linear sorption was best-fit using the Freundlich isotherm (R2 > 0.82) and the pseudo-second-order model best described sorption kinetics (R2 > 0.94). Antibiotics' sorption onto manure increased in the order sulfamethazine < florfenicol < ciprofloxacin < oxytetracycline. Admixtures of BCP to manure changed the order to sulfamethazine < oxytetracycline < florfenicol = ciprofloxacin. Generally, with the addition of biochar, sorption coefficients of florfenicol increased most (by factors>2.7) followed by sulfamethazine and ciprofloxacin. Yet, oxytetracycline was mostly mobilized probably due to competitive adsorption. Effects depended on the proportion of biochar added and the type of biochar, whereby plant-derived biochar exhibited better immobilization of antibiotics. Depending on the type and portion of biochar, admixtures to manure can be used to lower the mobility and hence bioavailability of fenicols, fluoroquinolones and sulfonamides.
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Affiliation(s)
- A N Ngigi
- Soil Science, University of Trier, Trier, Germany
| | - Y S Ok
- Korea Biochar Research Center, Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Republic of Korea
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Tran EL, Teutsch N, Klein-BenDavid O, Weisbrod N. Uranium and Cesium sorption to bentonite colloids under carbonate-rich environments: Implications for radionuclide transport. Sci Total Environ 2018; 643:260-269. [PMID: 29936167 DOI: 10.1016/j.scitotenv.2018.06.162] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/12/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
In the context of geological disposal of radioactive waste, one of the controlling mechanisms for radionuclide migration through subsurface strata is sorption to mobile colloidal bentonite particles. Such particles may erode from the repository backfill or bentonite buffer and yield measurable (0.01-0.1 g/L) concentrations in natural groundwater. The extent of sorption is influenced by colloid concentration, ionic strength, radionuclide concentration, and the presence of competing metals. Uranium (VI) and cesium sorption to bentonite colloids was investigated both separately and together in low ionic strength (2.20 mM) artificial rainwater (ARW) and high ionic strength (169 mM) artificial groundwater (AGW; representative of a fractured carbonate rock aquitard). Sorption experiments were conducted as a factor of colloid concentration, initial metal concentration and opposing metal presence. It was shown that both U(VI) and Cs sorption were significantly reduced in AGW in comparison to ARW. Additionally, the sorption coefficient Kd of both metals was found to decrease with increasing colloid concentration. Competitive sorption experiments indicated that at high colloid concentration (1-2 g/L), Cs sorption was reduced in the presence of U(VI), and at low colloid concentration (0.01-0.5 g/L), both Cs and U(VI) Kds were reduced when they were present together due to competition for similar sorption sites. The results from this study imply that in brackish carbonate rock aquifers, typical of the Israeli northern Negev Desert, both U(VI) and Cs are more likely to be mobile as dissolved species rather than as colloid-associated solids.
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Affiliation(s)
- Emily L Tran
- The Zuckerburg Institute for Water Research, The Jacob Blaustein Institutes for Desert Studies, Ben Gurion University of the Negev, Midreshet Ben Gurion 84990, Israel
| | - Nadya Teutsch
- Geological Survey of Israel, Jerusalem 9550161, Israel
| | - Ofra Klein-BenDavid
- Nuclear Research Center of the Negev, Negev, P.O. Box 9001, Beersheva 84190, Israel; Geological and Environmental Science Department, Ben Gurion University of the Negev, Beersheva 84105, Israel
| | - Noam Weisbrod
- The Zuckerburg Institute for Water Research, The Jacob Blaustein Institutes for Desert Studies, Ben Gurion University of the Negev, Midreshet Ben Gurion 84990, Israel.
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Du H, Huang Q, Peacock CL, Tie B, Lei M, Liu X, Wei X. Competitive binding of Cd, Ni and Cu on goethite organo-mineral composites made with soil bacteria. Environ Pollut 2018; 243:444-452. [PMID: 30216877 DOI: 10.1016/j.envpol.2018.08.087] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/31/2018] [Accepted: 08/26/2018] [Indexed: 06/08/2023]
Abstract
Soil is a heterogeneous porous media that is comprised of a variety of organo-mineral aggregates. Sorption of heavy metals onto these composite solids is a key process that controls heavy metal mobility and fate in the natural environment. Pollution from a combination of heavy metals is common in soil, therefore, understanding the competitive binding behavior of metal ions to organo-mineral composites is important in order to predict metal mobility and fate. In this study, batch experiments were paired with spectroscopic studies to probe the sorption characteristics of ternary CdNiCu sorbates to a binary organo-goethite composite made with Bacillus cereus cells. Scanning electron microscopy shows that goethite nano-sized crystals are closely associated with the bacterial surfaces. Sorption experiments show a larger adsorptivity and affinity for Cu than Cd/Ni on goethite and B. cereus, and the goethite-B. cereus composite. X-ray photoelectron spectroscopy reveals that carboxylate and phosphate functional moieties present on the bacterial cell walls are primarily responsible for metal sorption to the goethite-B. cereus composite. Synchrotron-based X-ray fluorescence shows that Cu and Ni are predominately associated with the bacterial fraction of the goethite-B. cereus composite, whereas Cd is mainly associated with the goethite fraction. The findings of this research have important implications for predicting the mobility and fate of heavy metals in soil multi-component systems.
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Affiliation(s)
- Huihui Du
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China; State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, PR China.
| | - Qiaoyun Huang
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Caroline L Peacock
- University of Leeds, School of Earth and Environment, Leeds, LS2 9JT, UK
| | - Boqing Tie
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
| | - Ming Lei
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
| | - Xiaoli Liu
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
| | - Xiangdong Wei
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
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Wang Y, Zhang X, Li R, Lin Y, Liu W, Li R, Zhang Y. Competitive sorption of lead and methylene blue onto black soil and their interaction with dissolved organic matter using two-dimensional correlation analyses. Ecotoxicol Environ Saf 2018; 164:484-492. [PMID: 30145488 DOI: 10.1016/j.ecoenv.2018.08.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/03/2018] [Accepted: 08/07/2018] [Indexed: 06/08/2023]
Abstract
This study investigated the competitive sorption of black soil to adsorb Pb(II) and methylene blue (MB) from multi-contaminated soils. According to the experimental data, the process of adsorption can be clearly explained by pseudo-second-order kinetic equation. Both single and binary systems of the adsorption isotherms had a good fit with Langmuir models. The maximal adsorption abilities of Pb(II) and MB acquired from binary systems sorption were attenuated compared to those from the single system (Pb(II): 77.70 > 65.96 mg g-1; MB: 242.31 > 222.36 mg g-1). Pb(II) and MB can inhibit each other's sorption ability. A combination of three-dimensional excitation-emission matrix (3D-EEM), synchronous fluorescence spectra as well as two-dimensional correlation spectroscopy (2D-COS) were employed to determine the binding of dissolved organic matter (DOM) for Pb(II) and MB during soil sorption process. As a result, 3D-EEM implicated that the two main composes of DOM were humic acid-like substances and the fluorescence of DOM specimens were gradually diminished with increasing concentrations of Pb(II) and MB. According to synchronous fluorescence spectra, static quenching of Pb(II) and MB mainly led to fluorescence quenching. Specifically, fluorescence-2D-COS implicated that Pb(II) and MB bound to fluorescence in the following sequence: the earlier occurrence of the humic-like fraction compared to that of protein-like fraction. FTIR-2D-COS results concluded that the structural change sequence of DOM by Pb(II) binding followed the order: 1700>863>1332>1529>1200>1086 cm-1 and the sequence of the MB binding affinities followed the order: 1520>1399>1345>1152>1602>993>881 cm-1. These findings would be beneficial to understand the mechanism of adsorb multi-component systems and have the potential to contribute significance to the interaction mechanism of multi-component with soil DOM at the molecular level.
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Affiliation(s)
- Yifan Wang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China
| | - Xinyuan Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China
| | - Ruizhen Li
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China
| | - Yulong Lin
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China
| | - Wenzhu Liu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China
| | - Rui Li
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China.
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Martínez-Costa JI, Leyva-Ramos R, Padilla-Ortega E, Aragón-Piña A, Carrales-Alvarado DH. Antagonistic, synergistic and non-interactive competitive sorption of sulfamethoxazole-trimethoprim and sulfamethoxazole‑cadmium (ii) on a hybrid clay nanosorbent. Sci Total Environ 2018; 640-641:1241-1250. [PMID: 30021289 DOI: 10.1016/j.scitotenv.2018.05.399] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 05/19/2018] [Accepted: 05/31/2018] [Indexed: 06/08/2023]
Abstract
The competitive sorption of the antibiotics sulfamethoxazole (SMX) and trimethoprim (TMP) and SMX-Cd(II) on a hybrid clay nanosorbent (NanoSorb) was investigated in detail in this work. NanoSorb was synthesized by sorbing a surfactant on bentonite. Besides, the sorption of SMX on the NanoSorb was confirmed by FTIR analysis, and SMX was mainly sorbed on NanoSorb by a partition mechanism due to hydrophobic interactions. Otherwise, the single adsorption of Cd(II) and TMP onto NanoSorb were due to electrostatic interaction and hydrophobic partition, respectively. The capacity of NanoSorb for sorbing single SMX was very similar to that for single Cd(II), but more than 10 times higher than that for single TMP. The competitive sorption of SMX-TMP was antagonistic because the sorption of one antibiotic on NanoSorb was decreased by the presence of the other antibiotic. The uptake of SMX was reduced up to 43.4% by the presence of TMP, whereas the presence of SMX decreased the uptake of TMP up to 29.6%. The non-modified Langmuir multicomponent isotherm (NLMI) interpreted quite well the experimental competitive sorption data of SMX-TMP. On the other hand, the competitive sorption of SMX-Cd(II) on NanoSorb revealed that the sorption of SMX was non-interactive because it was not influenced by the presence of Cd(II). Whereas, the sorption of Cd(II) was synergistic or cooperative since the uptake of Cd(II) sorbed increased considerably with the uptake of SMX sorbed on NanoSorb. The two-site Langmuir model fitted the experimental competitive sorption data of Cd(II) on NanoSorb saturated with SMX. The application of this isotherm was based on the fact that Cd(II) sorbed on two types of sites: a) cationic sites of the NanoSorb and b) Pi-cation interactions between the aromatic ring of the SMX sorbed on NanoSorb and Cd2+.
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Affiliation(s)
- Jesús I Martínez-Costa
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, UASLP, Av. Dr. Manuel Nava No. 6, San Luis Potosí, SLP 78210, Mexico
| | - Roberto Leyva-Ramos
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, UASLP, Av. Dr. Manuel Nava No. 6, San Luis Potosí, SLP 78210, Mexico.
| | - Erika Padilla-Ortega
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, UASLP, Av. Dr. Manuel Nava No. 6, San Luis Potosí, SLP 78210, Mexico
| | - Antonio Aragón-Piña
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78210, Mexico
| | - Damarys H Carrales-Alvarado
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, UASLP, Av. Dr. Manuel Nava No. 6, San Luis Potosí, SLP 78210, Mexico
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Ding Z, Xu X, Phan T, Hu X, Nie G. High adsorption performance for As(III) and As(V) onto novel aluminum-enriched biochar derived from abandoned Tetra Paks. Chemosphere 2018; 208:800-807. [PMID: 29906754 DOI: 10.1016/j.chemosphere.2018.06.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/31/2018] [Accepted: 06/06/2018] [Indexed: 06/08/2023]
Abstract
In order to develop promising sorbents for value-added application of solid wastes, low-cost aluminum-enriched biochar was prepared from abandoned Tetra Pak used to hold milks, a paper-polyethylence-Al foil laminated package box, after acid pretreatment and subsequent slow pyrolysis under an oxygen-limited environment at 600 °C. The basic physicochemical properties of the resultant biochar were characterized and the sorption performance of aqueous As(III) and As(V) was investigated via batch and column sorption experiments. Carbon (49.1%), Ca (7.41%) and Al (13.5%) were the most abundant elements in the resultant biochar; and the specific surface area and the pH value at the point of zero charge (pHPZC) were 174 m2 g-1 and 9.3, respectively. Batch sorption showed excellent sorption performance for both As(III) (24.2 mg g-1) and As(V) (33.2 mg g-1) and experimental data were fitted well with Langmuir model for the sorption isotherms and pseudo-second order kinetic model for the sorption kinetics. The residual concentrations of As(V) after sorption were below the limited value of arsenic in WHO Guidelines for Drinking water Quality (0.01 mg L-1) even if coexistence of PO43-. Column sorption confirmed the high sorption performance for As(III) and As(V). So the slow pyrolysis of abandoned Tetra Paks as low-cost and value-added sorbents is a sustainable strategy for solid waste disposal and wastewater treatment.
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Affiliation(s)
- Zhuhong Ding
- School of Environmental Science & Engineering, Nanjing Tech University, 30 Puzhu Southern Road, Nanjing, 211816, PR China.
| | - Xuebin Xu
- School of Environmental Science & Engineering, Nanjing Tech University, 30 Puzhu Southern Road, Nanjing, 211816, PR China
| | - Thihongnhung Phan
- School of Environmental Science & Engineering, Nanjing Tech University, 30 Puzhu Southern Road, Nanjing, 211816, PR China
| | - Xin Hu
- State Key Laboratory of Analytical Chemistry for Life Science, Center of Material Analysis and School of Chemistry and Chemical Engineering, 22 Hankou Road, Nanjing University, Nanjing, 210093, PR China
| | - Guangze Nie
- School of Environmental Science & Engineering, Nanjing Tech University, 30 Puzhu Southern Road, Nanjing, 211816, PR China
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Arim AL, Guzzo G, Quina MJ, Gando-Ferreira LM. Single and binary sorption of Cr(III) and Ni(II) onto modified pine bark. Environ Sci Pollut Res Int 2018; 25:28039-28049. [PMID: 30066077 DOI: 10.1007/s11356-018-2843-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
This study aims to investigate the single and binary biosorption of Cr(III) and Ni(II) by pine bark chemically treated with NaOH solution (MPB). The studies involved the effect of initial pH in the equilibrium, as well as kinetic uptake using synthetic solutions. Equilibrium tests were also conducted with an industrial effluent. The kinetic model of pseudo-second order described well the data of single and binary systems. The equilibrium data were better described by the Langmuir model for both metals. The maximum adsorption capacity (qmax) to single system was 31.4 and 23.7 mg/g for Cr(III) and Ni(II), respectively. To analyse the competitive sorption between chromium and nickel ions, the modified Langmuir and Freundlich models were tested for two different concentration (mEq/L) ratios Cr(III)/Ni(II) of 1:1 and 2:1. The modified Langmuir model is also the best to fit the experimental data for both syntetic and industrial effluents. In the synthetic effluent, the qmax value for Cr(III) in MPB was about 25 mg/g, while qmax for Ni(II) decreased from 12.4 to 5.5 mg/g. The results showed that Ni(II) did not significantly interfere in Cr(III) adsorption capacity, whereas Cr(III) decreased the uptake of Ni(II). The industrial effluent contains several species, and thus, the sorption capacities for Cr(III) and Ni(II) were significantly affected.
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Affiliation(s)
- Aline L Arim
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal
- Federal University of Pampa (UNIPAMPA), Bagé, RS, Brazil
| | - Gaetano Guzzo
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal
- Università Campus Bio-Medico (UCBM), Rome, Italy
| | - Margarida J Quina
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal
| | - Licínio M Gando-Ferreira
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal.
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Luo J, Li X, Ge C, Müller K, Yu H, Huang P, Li J, Tsang DCW, Bolan NS, Rinklebe J, Wang H. Sorption of norfloxacin, sulfamerazine and oxytetracycline by KOH-modified biochar under single and ternary systems. Bioresour Technol 2018; 263:385-392. [PMID: 29763802 DOI: 10.1016/j.biortech.2018.05.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/02/2018] [Accepted: 05/07/2018] [Indexed: 05/10/2023]
Abstract
Pollution of water by single antibiotics has been investigated in depth. However, in reality, a wide range of different contaminants is often mixed in the aquatic environment (contaminant cocktail). Here, single and competitive sorption dynamics of ionizable norfloxacin (NOR), sulfamerazine (SMR) and oxytetracycline (OTC) by both pristine and modified biochars were investigated. Sorption kinetics of the three antibiotics was faster in ternary-solute than single-solute system. Sorption efficiency was enhanced in the competitive system for NOR by the pristine biochar, and for OTC by both the pristine biochar and the modified biochar, while SMR sorption by the pristine biochar and the KOH-modified biochar was inhibited. Sorption was governed by electrostatic interactions, π-π EDA and H-bonds for antibiotics sorption by biochar. SMR and OTC sorption by biochar was influenced by cation bridging and surface complexation, respectively. This research finding will guide the development of treatment procedures for water polluted by multiple antibiotics.
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Affiliation(s)
- Jiwei Luo
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China; Environmental and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - Xue Li
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Chengjun Ge
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China; College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Karin Müller
- The New Zealand Institute for Plant & Food Research Limited, Ruakura Research Centre, Private Bag 3123, Hamilton, New Zealand
| | - Huamei Yu
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China.
| | - Peng Huang
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Jiatong Li
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation, University of Newcastle, Callaghan, NSW, Australia
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, Republic of Korea
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, Zhejiang 311300, China; Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan, Guangdong 523169, China
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Boubakri S, Djebbi MA, Bouaziz Z, Namour P, Ben Haj Amara A, Ghorbel-Abid I, Kalfat R. Nanoscale zero-valent iron functionalized Posidonia oceanica marine biomass for heavy metal removal from water. Environ Sci Pollut Res Int 2017; 24:27879-27896. [PMID: 28988320 DOI: 10.1007/s11356-017-0247-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 09/19/2017] [Indexed: 06/07/2023]
Abstract
Because of the excellent reducing capacity of nanoscale zero-valent iron (NZVI), it can be used as alternative materials for the removal of a variety of reducible water contaminants including toxic metals. The current paper reports the research results obtained for self-prepared biosorbent, Posidonia oceanica biomass, activated in alkaline medium and functionalized with NZVI particles. The structural characteristics, surface morphology, and binding properties of the resulting nanobiosorbent are presented. Batch comparative adsorption trials including adsorption kinetics and isothermals onto raw Posidonia, Posidonia-OH and Posidonia-OH-NZVI were investigated on three heavy metal ions: Cd(II), Pb(II), and Cu(II). The nanobiosorbent showed better properties, such as high reactivity and high uptake rate through the sorption process. The toxic metal removal has been monitored in terms of pseudo-first- and pseudo-second-order kinetics, and both Langmuir- and Freundlich-type isotherm models have been used to describe the sorption mechanism. The experimental data of all studied systems showed that the uptake kinetics follow the pseudo-second-order kinetic model and the equilibrium uptake can adopt the Langmuir-type isotherm model which assumes a monolayer coverage as the adsorption saturates and no further adsorption occurs. The thermodynamic results confirm that all sorption processes were feasible, spontaneous and thermodynamically favorable. Zeta potential data displayed that Cd(II), Pb(II), and Cu(II) tend to be reduced after exposure on the Posidonia-OH-NZVI surface. Furthermore, sorption competitions of the metals from binary and ternary systems were carried out onto Posidonia-OH-NZVI in order to gain further insight into the sorption efficiency of this material. Therefore, as a result, the proposed new nanobiosorbent could offer potential benefits in remediation of heavy metal-contaminated water as a green and environmentally friendly bionanocomposite.
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Affiliation(s)
- Saber Boubakri
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique, BiotechPole Sidi-Thabet, 2020, Ariana, Tunisia
- Laboratoire des Applications de la Chimie aux Ressources et Substances Naturelles et a l'Environnement, Universite de Carthage, Faculté des Sciences de Bizerte, 7021, Zarzouna, Tunisia
| | - Mohamed Amine Djebbi
- Laboratoire de Physique des Materiaux Lamellaires et Nanomatériaux Hybrides, Faculte des Sciences de Bizerte, Université de Carthage, 7021, Zarzouna, Tunisia.
- Institut des Sciences Analytiques UMR CNRS 5280, Université de Lyon, 5 rue de la Doua, 69100, Villeurbanne, France.
- Irstea, Université de Lyon, 5 rue de la Doua, 69100, Villeurbanne, France.
| | - Zaineb Bouaziz
- Laboratoire de Physique des Materiaux Lamellaires et Nanomatériaux Hybrides, Faculte des Sciences de Bizerte, Université de Carthage, 7021, Zarzouna, Tunisia
| | - Philippe Namour
- Irstea, Université de Lyon, 5 rue de la Doua, 69100, Villeurbanne, France
| | - Abdesslem Ben Haj Amara
- Laboratoire de Physique des Materiaux Lamellaires et Nanomatériaux Hybrides, Faculte des Sciences de Bizerte, Université de Carthage, 7021, Zarzouna, Tunisia
| | - Ibtissem Ghorbel-Abid
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique, BiotechPole Sidi-Thabet, 2020, Ariana, Tunisia
| | - Rafik Kalfat
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique, BiotechPole Sidi-Thabet, 2020, Ariana, Tunisia
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21
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Lalita, Singh AP, Sharma RK. Selective sorption of Fe(II) ions over Cu(II) and Cr(VI) ions by cross-linked graft copolymers of chitosan with acrylic acid and binary vinyl monomer mixtures. Int J Biol Macromol 2017; 105:1202-1212. [PMID: 28757421 DOI: 10.1016/j.ijbiomac.2017.07.163] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/25/2017] [Accepted: 07/26/2017] [Indexed: 01/31/2023]
Abstract
Low-cost and environment-friendly polymeric adsorbents for sorption of heavy metal ions were synthesized by simultaneous graft copolymerization and cross-linking of acrylic acid alone and with comonomers glycidyl methacrylate, acrylamide and acrylonitrile onto chitosan using free radical initiator and cross-linker in aqueous medium. Structural aspects of cross-linked graft copolymers have been characterized by FTIR, SEM, TGA/DTA, XRD and swelling behavior at pH 2.2, 7.0 and 9.4. An attempt has been made to study sorption of Cr(VI), Cu(II) and Fe(II) ions on cross-linked graft copolymers by equilibration method and to establish a relationship between structural aspects of graft copolymers and metal ion uptake efficiency and selectivity. Solutions of individual ions were used for non-competitive sorption onto synthesized bio-adsorbents as a function of change in contact time, temperature, pH and metal ion concentration in feed. Competitive sorption investigation was performed from an aqueous solution of ternary metal ions by batch equilibration at 25°C and at 7.0pH. Cross-linked graft copolymers showed better results than unmodified chitosan and showed preferential sorption of Fe(II) ions than Cu(II) and Cr(VI) ions.
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Affiliation(s)
- Lalita
- IK Gujral Punjab Technical University, Kapurthala, Punjab, 144601 India; University Institute of Sciences, Chemistry Department, Chandigarh University, Gharuan, Mohali, Punjab, 140413 India
| | - Anirudh P Singh
- IK Gujral Punjab Technical University, Kapurthala, Punjab, 144601 India
| | - Rajeev Kr Sharma
- Department of Chemistry, DAV College, Jalandhar, Punjab, 144008 India.
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22
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Rivas-Pérez IM, Conde-Cid M, Nóvoa-Muñoz JC, Arias-Estévez M, Fernández-Sanjurjo MJ, Álvarez-Rodríguez E, Núñez-Delgado A. As(V)/Cr(VI) retention on un-amended and waste-amended soil samples: competitive experiments. Environ Sci Pollut Res Int 2017; 24:1051-1059. [PMID: 27822690 DOI: 10.1007/s11356-016-8015-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
Focusing on simultaneous arsenic and chromium pollution, we used batch-type experiments to study As(V)/Cr (VI) competitive sorption on soil samples, pyritic material, mussel shell, oak ash, pine bark and hemp waste, as well as on binary mixtures (50 % mussel shell and 50 % another material-oak ash, pine bark, or hemp waste), and on forest and vineyard soil samples and pyritic material amended with 48 t ha-1 of mussel shell, oak ash, pine bark, or hemp waste. Equal As(V) and Cr(VI) concentrations (0 to 6 mmol L-1) were added to the individual materials, binary mixtures, and 48 t ha-1 amended materials. The individual forest soil sample, pyritic material, and oak ash showed clearly higher As(V) sorption, whereas Cr(VI) sorption was higher on pine bark. Sorption was up to 50 % higher for As(V) than for Cr(VI) on the forest soil sample, oak ash, and pyritic material, while pine bark sorbed 95 % more Cr(VI). Regarding binary mixtures, the presence of mussel shell increased As(V) sorption on pine bark and Cr(VI) sorption on hemp waste. As regards the amendments, in the case of the forest soil sample, the amendments with oak ash and mussel shell increased As(V) sorption, while pine bark amendment increased Cr(VI) sorption; in the vineyard soil sample, the mussel shell amendment increased As(V) sorption; in the pyritic material, pine bark amendment increased Cr(VI) sorption. These results could be useful to appropriately manage the soils and individual or mixed by-products assayed when As(V) and Cr(VI) pollution occurs.
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Affiliation(s)
- Ivana M Rivas-Pérez
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Manuel Conde-Cid
- Department of Plant Biology and Soil Science, Faculty of Sciences, Campus Ourense, University of Vigo, 32004, Ourense, Spain
| | - Juan Carlos Nóvoa-Muñoz
- Department of Plant Biology and Soil Science, Faculty of Sciences, Campus Ourense, University of Vigo, 32004, Ourense, Spain
| | - Manuel Arias-Estévez
- Department of Plant Biology and Soil Science, Faculty of Sciences, Campus Ourense, University of Vigo, 32004, Ourense, Spain
| | - María J Fernández-Sanjurjo
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Esperanza Álvarez-Rodríguez
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Avelino Núñez-Delgado
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, University of Santiago de Compostela, 27002, Lugo, Spain.
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Fang J, Wang M, Shen B, Zhang L, Lin D. Distinguishable co-transport mechanisms of phenanthrene and oxytetracycline with oxidized-multiwalled carbon nanotubes through saturated soil and sediment columns: vehicle and competition effects. Water Res 2017; 108:271-279. [PMID: 27836173 DOI: 10.1016/j.watres.2016.11.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 10/03/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
To date mechanisms underlying co-transports of engineered nanomaterials (ENMs) with contaminants have not been adequately explored, which involve complex interactions among ENMs, contaminants, and soils. This study investigated co-transport behaviors of 3 oxidized-multiwalled carbon nanotubes (o-MWCNTs) with phenanthrene (PHE) and oxytetracycline (OTC) in soil and sediment columns. Sorptions and desorptions of PHE and OTC by the o-MWCNTs were examined to facilitate the discussion of co-transport mechanisms. The results showed that mobilities of PHE and OTC in the columns were significantly enhanced by the presences of o-MWCNTs in the influents; the eluted o-MWCNTs were positively correlated to the eluted total PHE but negatively correlated to the eluted total OTC; the eluted PHE was mainly in the o-MWCNTs-associated form, while it was mainly the dissolved OTC breaking through the columns. It was thus concluded that the o-MWCNTs acted as vehicles facilitating the PHE transport, while besides the vehicle effect the o-MWCNTs also competed for the adsorption sites on soil particles with OTC and thereby enhancing the OTC mobility. These findings provide new insight into the mechanisms regulating co-transports of ENMs and contaminants in porous media.
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Affiliation(s)
- Jing Fang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, PR China
| | - Minhao Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, PR China; Department of Environmental Science, Zhejiang University, Hangzhou 310058, PR China
| | - Bing Shen
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, PR China; Department of Environmental Science, Zhejiang University, Hangzhou 310058, PR China
| | - Luqing Zhang
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, PR China
| | - Daohui Lin
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, PR China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou 310058, PR China.
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24
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Zheng JC, Liu HQ, Feng HM, Li WW, Lam MHW, Lam PKS, Yu HQ. Competitive sorption of heavy metals by water hyacinth roots. Environ Pollut 2016; 219:837-845. [PMID: 27521292 DOI: 10.1016/j.envpol.2016.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/01/2016] [Accepted: 08/02/2016] [Indexed: 05/28/2023]
Abstract
Heavy metal pollution is a global issue severely constraining aquaculture practices, not only deteriorating the aquatic environment but also threatening the aquaculture production. One promising solution is adopting aquaponics systems where a synergy can be established between aquaculture and aquatic plants for metal sorption, but the interactions of multiple metals in such aquatic plants are poorly understood. In this study, we investigated the absorption behaviors of Cu(II) and Cd(II) in water by water hyacinth roots in both single- and binary-metal systems. Cu(II) and Cd(II) were individually removed by water hyacinth roots at high efficiency, accompanied with release of protons and cations such as Ca2+ and Mg2+. However, in a binary-metal arrangement, the Cd(II) sorption was significantly inhibited by Cu(II), and the higher sorption affinity of Cu(II) accounted for its competitive sorption advantage. Ionic exchange was identified as a predominant mechanism of the metal sorption by water hyacinth roots, and the amine and oxygen-containing groups are the main binding sites accounting for metal sorption via chelation or coordination. This study highlights the interactive impacts of different metals during their sorption by water hyacinth roots and elucidates the underlying mechanism of metal competitive sorption, which may provide useful implications for optimization of phytoremediation system and development of more sustainable aquaculture industry.
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Affiliation(s)
- Jia-Chuan Zheng
- Advanced Lab for Environmental Research & Technology, USTC-CityU, Suzhou, 215123, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China; Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Hou-Qi Liu
- Advanced Lab for Environmental Research & Technology, USTC-CityU, Suzhou, 215123, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Hui-Min Feng
- Advanced Lab for Environmental Research & Technology, USTC-CityU, Suzhou, 215123, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China; Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Wen-Wei Li
- Advanced Lab for Environmental Research & Technology, USTC-CityU, Suzhou, 215123, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China.
| | - Michael Hon-Wah Lam
- Advanced Lab for Environmental Research & Technology, USTC-CityU, Suzhou, 215123, China; Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Paul Kwan-Sing Lam
- Advanced Lab for Environmental Research & Technology, USTC-CityU, Suzhou, 215123, China; Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Han-Qing Yu
- Advanced Lab for Environmental Research & Technology, USTC-CityU, Suzhou, 215123, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China.
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25
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Yang Y, Zhang W, Qiu H, Tsang DCW, Morel JL, Qiu R. Effect of coexisting Al(III) ions on Pb(II) sorption on biochars: Role of pH buffer and competition. Chemosphere 2016; 161:438-445. [PMID: 27454898 DOI: 10.1016/j.chemosphere.2016.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/23/2016] [Accepted: 07/03/2016] [Indexed: 06/06/2023]
Abstract
Biochar is being widely considered as a promising amendment agent for immobilizing heavy metals in contaminated acidic soils, where plenty of soluble Al(III) ions exist. In view of uncertain significance of the effects of coexisting Al(III) on Pb(II) sorption by biochars, this study used kenaf core biochar (KB550; high carbon, low ash) and sewage sludge biochar (SB550; low carbon, high ash) pyrolyzed at 550 °C to elucidate the influence of coexisting Al(III) species and biochars' mineral components on Pb(II) immobilization conducted in aqueous solution with initial pHs of 3.0-4.5. Results showed that Al(III) reduced Pb(II) sorption on KB550 primarily via pH buffering against biochar alkalinity, thus inhibiting lead carbonate formation. In contrast, the reduction on SB550 mainly resulted from direct competition for sorption sites, especially on Fe-rich phengite 2M1 and metakaolinite. Because of Pb-P precipitation and Pb-K interlayer exchange, the residual Pb(II) adsorption capacity resistant to coexisting Al(III) was 3-5 times higher on SB550 than on KB550. The Pb-K interlayer exchange was enhanced by lower pH and coexisting Al(III), while Pb-P precipitation was the dominant Pb(II) sorption mechanism on SB550 resistant to Al(III) buffering and competition at higher pH. Application of these two biochars as amendments confirmed that the mineral-rich SB550 was more suitable for Pb(II) immobilization in acidic soils with high levels of extractable Al(III).
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Affiliation(s)
- Yuxi Yang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Weihua Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China.
| | - Hao Qiu
- Division Soil and Water Management, University of Leuven, 3001 Heverlee, Belgium
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Jean-Louis Morel
- Université de Lorraine, INRA, Laboratoire Sols et Environnement, BP 172, 2 Avenue de la forêt de Haye, F-54505 Vandoeuvre-lès-Nancy Cédex, France
| | - Rongliang Qiu
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China.
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26
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Ding C, Cheng W, Wang X, Wu ZY, Sun Y, Chen C, Wang X, Yu SH. Competitive sorption of Pb(II), Cu(II) and Ni(II) on carbonaceous nanofibers: A spectroscopic and modeling approach. J Hazard Mater 2016; 313:253-61. [PMID: 27108273 DOI: 10.1016/j.jhazmat.2016.04.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/27/2016] [Accepted: 04/03/2016] [Indexed: 05/28/2023]
Abstract
The competitive sorption of Pb(II), Cu(II) and Ni(II) on the uniform carbonaceous nanofibers (CNFs) was investigated in binary/ternary-metal systems. The pH-dependent sorption of Pb(II), Cu(II) and Ni(II) on CNFs was independent of ionic strength, indicating that inner-sphere surface complexation dominated sorption Pb(II), Cu(II) and Ni(II) on CNFs. The maximum sorption capacities of Pb(II), Cu(II) and Ni(II) on CNFs in single-metal systems at a pH 5.5±0.2 and 25±1°C were 3.84 (795.65mg/g), 3.21 (204.00mg/g) and 2.67 (156.70mg/g)mmol/g, respectively. In equimolar binary/ternary-metal systems, Pb(II) exhibited greater inhibition of the sorption of Cu(II) and Ni(II), demonstrating the stronger affinity of CNFs for Pb(II). The competitive sorption of heavy metals in ternary-metal systems was predicted quite well by surface complexation modeling derived from single-metal data. According to FTIR, XPS and EXAFS analyses, Pb(II), Cu(II) and Ni(II) were specifically adsorbed on CNFs via covalent bonding. These observations should provide an essential start in simultaneous removal of multiple heavy metals from aquatic environments by CNFs, and open the doorways for the application of CNFs.
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Affiliation(s)
- Congcong Ding
- School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, PR China; Key Lab of New Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei 230031, PR China; University of Science and Technology of China, Hefei 230032, PR China
| | - Wencai Cheng
- School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, PR China; Key Lab of New Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei 230031, PR China; University of Science and Technology of China, Hefei 230032, PR China
| | - Xiangxue Wang
- School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, PR China; Key Lab of New Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei 230031, PR China; University of Science and Technology of China, Hefei 230032, PR China
| | - Zhen-Yu Wu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Yubing Sun
- Key Lab of New Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei 230031, PR China.
| | - Changlun Chen
- Key Lab of New Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei 230031, PR China
| | - Xiangke Wang
- School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences, Soochow University, 215123 Suzhou, PR China; NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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Chung J, Kim YJ, Lee G, Nam K. Experimental determination of nonequilibrium transport parameters reflecting the competitive sorption between Cu and Pb in slag-sand column. Chemosphere 2016; 154:335-342. [PMID: 27060642 DOI: 10.1016/j.chemosphere.2016.03.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 03/10/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
Competitive sorption and resulting nonequilibrium transport of Cu and Pb were investigated using slag as a primary sorbent. A series of estimation models were applied based on the equilibrium, and nonequilibrium sorption respectively, and finally calibrated by incorporating the experimentally determined batch kinetic data. When applied individually, the behavior of metals in slag-sand column were well predicted by both equilibrium and nonequilibrium models in CXTFIT code. However, coexisting Cu and Pb exhibited competition for sorption sites, generating an irregular breakthrough curves such as overshoot (higher concentration in effluent than the feed concentration) of Cu and corresponding earlier peak of Pb followed by gradual re-rising. Although two-site nonequilibrium model further considers coupled hydrochemical process, desorption of the Cu from competition made the model prediction inaccurate. However, the parameter estimation could be improved by incorporating the experimentally determined mass transfer rate, ωexp from batch kinetics. Based on the calibrated model, the fraction of instantaneous retardation, βexp of Pb decreased from 0.41 in the single system to 0.30 in the binary system, indicating the shift from equilibrium to nonequilibrium state, where which of Cu increased from 0.39 to 0.94, representing the shift towards equilibrium. The modified results were also compared with five-step sequential extraction data, confirming that the shift of particular metal fractions from the competition triggered the nonequilibrium transport.
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Affiliation(s)
- Jaeshik Chung
- Center for Water Resource Cycle, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; Department of Environmental Engineering Sciences, University of Florida, P.O. Box 116450, Gainesville, FL 32611-6450, USA
| | | | - Gwanghun Lee
- Department of Civil and Environmental Engineering, Seoul National University, Seoul 151-742, Republic of Korea
| | - Kyoungphile Nam
- Department of Civil and Environmental Engineering, Seoul National University, Seoul 151-742, Republic of Korea.
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28
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Módenes AN, Espinoza-Quiñones FR, Colombo A, Geraldi CL, Trigueros DEG. Inhibitory effect on the uptake and diffusion of Cd(2+) onto soybean hull sorbent in Cd-Pb binary sorption systems. J Environ Manage 2015; 154:22-32. [PMID: 25704746 DOI: 10.1016/j.jenvman.2015.02.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 02/03/2015] [Accepted: 02/12/2015] [Indexed: 06/04/2023]
Abstract
The uptake of Cd(2+) and Pb(2+) ions by a soybean hull (SH) biosorbent in single and binary systems has been investigated. Sorption tests regarding SH in natura and chemically treated were carried out testing a suitable value range of solution pH, sorption temperature and shaking velocity. Sorption capacity is improved at pH 4, 30 °C temperature and 100 rpm. When a strong base is applied, a related-to-untreated SH increasing of 20% in the sorption capacity of Pb(2+) ions was observed, but with poor results for Cd(2+) uptake. Additionally, a relatively strong decreasing in both sorption capacities of Pb(2+) and Cd(2+) ions was evidenced for all acidic treatments. Regarding untreated SH, kinetic sorption data of both metals were well-interpreted by a pseudo second-order model and a rate-limiting step on the basis of an intra-particle diffusion model was suggested to occur. An inhibitory effect of Pb(2+) diffusion over Cd(2+) one was observed, limiting to reach the obtained maximum sorption capacity in single system. Maximum adsorption capacities of 0.49 and 0.67mequivg(-1) for Cd(2+) and Pb(2+), respectively, were predicted by the Langmuir isotherm model that reproduced well the equilibrium sorption data for single systems. The inhibitory effect of one metal over the other one was verified in equilibrium sorption data for binary systems interpreted on the basis of a modified extended Langmuir isotherm model, predicting changes in metal affinity onto the SH surface. Finally, SH is an alternative biosorbent with a great potential for the wastewater treatment containing cadmium and lead ions.
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Affiliation(s)
- Aparecido N Módenes
- Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil.
| | - Fernando R Espinoza-Quiñones
- Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil
| | - Andréia Colombo
- Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil
| | - Claudinéia L Geraldi
- Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil
| | - Daniela E G Trigueros
- Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil
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Wang C, Li H, Liao S, Zhang D, Wu M, Pan B, Xing B. Sorption affinities of sulfamethoxazole and carbamazepine to two sorbents under co-sorption systems. Environ Pollut 2014; 194:203-209. [PMID: 25150454 DOI: 10.1016/j.envpol.2014.07.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 07/26/2014] [Accepted: 07/28/2014] [Indexed: 05/05/2023]
Abstract
The Kd of sulfamethoxazole (SMX) on activated carbon (AC) was larger than that of SMX on single-walled carbon nanotubes (SC), but the competition of SMX with carbamazepine (CBZ) for adsorption sites was weaker on AC than SC. Thus, a large Kd value does not necessarily reflect a high affinity. The analysis of the apparent sorption, competition, desorption hysteresis, and the sorption thermodynamics for SMX and CBZ did not provide sufficient information to distinguish their sorption affinities. The release of the adsorbed CBZ was not altered with SMX as the competitor, but SMX release increased significantly after CBZ addition. The higher sorption affinity of CBZ may be explained by the interactions of the CBZ benzene rings with the aromatic structures of the adsorbents. Although the thermodynamic meaning cannot be described, the release ratio of the adsorbed pollutants provides useful information for understanding pollutant sorption strength and associated risks.
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Affiliation(s)
- Chi Wang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Hao Li
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Shaohua Liao
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Di Zhang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Min Wu
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Bo Pan
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China.
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA
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Wu D, Li H, Liao S, Sun X, Peng H, Zhang D, Pan B. Co-sorption of ofloxacin and Cu(II) in soils before and after organic matter removal. Sci Total Environ 2014; 481:209-216. [PMID: 24598151 DOI: 10.1016/j.scitotenv.2014.02.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 02/10/2014] [Accepted: 02/10/2014] [Indexed: 06/03/2023]
Abstract
Various mechanisms play roles simultaneously for antibiotic sorption on solid particles. Previous studies simply emphasized mechanisms that match the increased or decreased antibiotic sorption by metal ions, without a general concept including these diverse mechanisms in their co-sorption. We observed both increased and decreased OFL and Cu(II) sorption in their co-sorption system. The comparison of the sorption coefficients of primary adsorbate (Kd(pri)) and co-adsorbate (Kd(co)) suggested that enhanced sorption occurred at high Kd(pri) region (low primary adsorbate concentration). Competitive sorption was observed when Kd(pri) was decreased to a certain value depending on solid particle properties. We thus summarized that if the adsorbates were introduced with low concentrations, OFL (such as hydrophobic region in solid particles) and Cu(II) (such as inner-sphere complexation sites) occupied their unique high-energy sorption sites. Cu(II) complexed with the adsorbed OFL, and OFL bridged by the adsorbed Cu(II) promoted the sorption for both chemicals. With the increased concentrations, the adsorbates spread to some common sorption sites with low sorption energy, such as cation exchange and electrostatic attraction region. The overlapping of Cu(II) and OFL on these sorption sites resulted in competitive sorption at high concentrations. The previously reported apparently increased or decreased sorption in antibiotic-metal ion co-sorption system may be only a part of the whole picture. Extended study on the turning point of decreased and increased sorption relating to water chemistry conditions and solid particle properties will provide more useful information to predict antibiotic-metal ion co-sorption.
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Affiliation(s)
- Di Wu
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Hao Li
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Shaohua Liao
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Xiaolong Sun
- College of Environmental Science and Engineering, Southwest Forestry University, Kunming 650224, China
| | - Hongbo Peng
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Di Zhang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Bo Pan
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China.
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Kutzner S, Schaffer M, Börnick H, Licha T, Worch E. Sorption of the organic cation metoprolol on silica gel from its aqueous solution considering the competition of inorganic cations. Water Res 2014; 54:273-283. [PMID: 24584001 DOI: 10.1016/j.watres.2014.01.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 01/20/2014] [Accepted: 01/22/2014] [Indexed: 06/03/2023]
Abstract
Systematic batch experiments with the organic monovalent cation metoprolol as sorbate and the synthetic material silica gel as sorbent were conducted with the aim of characterizing the sorption of organic cations onto charged surfaces. Sorption isotherms for metoprolol (>99% protonated in the tested pH of around 6) in competition with mono- and divalent inorganic cations (Na(+), NH4(+), Ca(2+), and Mg(2+)) were determined in order to assess their influence on cation exchange processes and to identify the role of further sorptive interactions. The obtained sorption isotherms could be described well by an exponential function (Freundlich isotherm model) with consistent exponents (about 0.8). In general, a decreasing sorption of metoprolol with increasing concentrations in inorganic cations was observed. Competing ions of the same valence showed similar effects. A significant sorption affinity of metoprolol with ion type dependent Freundlich coefficients KF,0.77 between 234.42 and 426.58 (L/kg)(0.77) could still be observed even at very high concentrations of competing inorganic cations. Additional column experiments confirm this behavior, which suggests the existence of further relevant interactions beside cation exchange. In subsequent batch experiments, the influence of mixtures with more than one competing ion and the effect of a reduced negative surface charge at a pH below the point of zero charge (pHPZC ≈ 2.5) were also investigated. Finally, the study demonstrates that cation exchange is the most relevant but not the sole mechanism for the sorption of metoprolol on silica gel.
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Affiliation(s)
- Susann Kutzner
- Institute of Water Chemistry, Technische Universität Dresden, 01062 Dresden, Germany(1).
| | - Mario Schaffer
- Geoscience Centre, Department of Applied Geology, University of Göttingen, Goldschmidtstr. 3, 37077 Göttingen, Germany(2)
| | - Hilmar Börnick
- Institute of Water Chemistry, Technische Universität Dresden, 01062 Dresden, Germany(1)
| | - Tobias Licha
- Geoscience Centre, Department of Applied Geology, University of Göttingen, Goldschmidtstr. 3, 37077 Göttingen, Germany(2)
| | - Eckhard Worch
- Institute of Water Chemistry, Technische Universität Dresden, 01062 Dresden, Germany(1)
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Shu Y, Liu P, Zhang Q, Wei D. Competitive sorption between 1,2,4-trichlorobenzene/tetrachloroethene and 1,2,4,5-tetrachlorobenzene by soils/sediments from South China. Sci Total Environ 2013; 463-464:258-263. [PMID: 23820006 DOI: 10.1016/j.scitotenv.2013.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 05/31/2013] [Accepted: 06/06/2013] [Indexed: 06/02/2023]
Abstract
1,2,4-Trichlorobenzene (1,2,4-TCB) and tetrachloroethene (PCE) were chosen to study their competitive effect on 1,2,4,5-tetrachlorobenzene (1,2,4,5-TeCB) sorption by three soils/sediments from South China with different fractions of natural organic matter (NOM) employing a batch technique. Results showed that cosolutes 1,2,4-trichlorobenzene and tetrachloroethene exhibited apparent competition against 1,2,4,5-tetrachlorobenzene in all of the three sediments. 1,2,4-Trichlorobenzene was more effective competitor than tetrachloroethene because the structure of 1,2,4-TCB is very close to that of 1,2,4,5-TeCB. Furthermore, the extent of competition depended on the rigidity of sediment NOM matrixes. The more reduced and condensed the matrixes are, the larger extent of competitive effect would the corresponding sediment show at a given sorbed volume of competitor.
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Affiliation(s)
- Yuehong Shu
- School of Chemistry & Environment, South China Normal University, Guangzhou 510006, China.
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