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Ramsburg CA, Baniahmad P, Muller KA, Robinson AD. Emulsion-based recovery of a multicomponent petroleum hydrocarbon NAPL using nonionic surfactant formulations. JOURNAL OF CONTAMINANT HYDROLOGY 2023; 255:104144. [PMID: 36791614 DOI: 10.1016/j.jconhyd.2023.104144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
Surfactants can aid subsurface remediation through three primary mechanisms - solubilization, mobilization and/or emulsification. Among these mechanisms, emulsification in porous media is generally not well studied or well understood; particularly in the context of treating sources containing multicomponent NAPL. The objective of this research was to elucidate the processes responsible for recovery of a multicomponent hydrocarbon NAPL when surfactant solutions are introduced within a porous medium to promote the formation of kinetically-stable oil-in-water emulsions. Emulsifier formulations considered here were selected to offer similar performance characteristics while relying on different families of non-ionic surfactants - nonylphenol ethoxylates or alcohol ethoxylates - for emulsification. The families of surfactants have particular environment relevance, as alcohol ethoxylates are often used where replacement of nonylphenol content is necessary. Results from batch and column studies suggest performance of the two formulations was similar. With both, a synergistic combination of emulsification and mobilization led to recovery of a synthetic gasoline NAPL. The relative contribution of solubilization to the recovery was found to be minor. Moreover, the physical processes associated with emulsification and mobilization acted to limit the amount of preferential recovery (or fractionation) of the multicomponent NAPL.
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Affiliation(s)
- C Andrew Ramsburg
- Department of Civil and Environmental Engineering, Tufts University, 200 College Avenue, Room 204 Anderson Hall, Medford, MA 02155, USA.
| | - Parnian Baniahmad
- Department of Civil and Environmental Engineering, Tufts University, 200 College Avenue, Room 204 Anderson Hall, Medford, MA 02155, USA
| | - Katherine A Muller
- Department of Civil and Environmental Engineering, Tufts University, 200 College Avenue, Room 204 Anderson Hall, Medford, MA 02155, USA
| | - Andrew D Robinson
- Department of Civil and Environmental Engineering, Tufts University, 200 College Avenue, Room 204 Anderson Hall, Medford, MA 02155, USA
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2
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Siyar M, Lashkarbolooki M. Evaluation of the interfacial tension of binary surfactant mixtures and crude oil using the response surface method. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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3
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Umeojiakor CT, Umeojiakor AO, Osarumwense JO, Walter PE, Anyikwa SO, Ifegbo AN, Nwanwe CC. Mineralization of pyrene (polycyclic aromatic hydrocarbon) in clay soil supplemented with animal organic carbon source. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2022; 20:281-292. [PMID: 35669827 PMCID: PMC9163286 DOI: 10.1007/s40201-021-00775-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/25/2021] [Indexed: 06/15/2023]
Abstract
Biostimulation of polycyclic aromatic hydrocarbons (PAHs) is a major concern in the environment due to their toxic nature and ubiquitous occurrence. The study aimed to determine the best animal supplement of organic carbon source (cow dung, goat dung, pig dung and poultry (fowl droppings) and indigenous microbes capable of mineralizing pyrene in clay soil. Clay soil sample was collected from the top surface soil (0 - 15 cm) in Ikpoba River and upper Lawani river bank, both in Benin City with the aid of stainless steel trowel and gloved hands and stored in a polyethylene bag. The isolation and identification process were evaluated by staining method, microscopic examination and biochemical tests. The degradation experiment was conducted in bioreactors and supplemented cow dung, pig dung, goat dung and fowl droppings were added in varying amounts of 25 g/l, 50 g/l, 75 g/l and 100 g/l. The potential effects of animal organic carbon as nutrient supplements to enhance mineralization of pyrene were investigated. The rates of mineralization of pyrene were studied for a remediation period of 35 days at room temperature of about 25 °C. Results obtained from microbial isolation showed that B. substilis and A. niger were the most populated in the soil and were therefore selected. The degradation experiment showed that mixed culture of B. substilis and A. niger using 50 g/l supplement with the dungs and droppings gave the highest percentage degradation with fowl droppings 98.3%, pig dung 98.1%, goat dung 97.8%, and cow dung 97.7%. The least degradation was observed in supplement with 100 g/l in a single culture of A. niger with fowl droppings yielded 64.5% degradation, pig dung 63.8%, goat dung 63.7% and cow dung 62.7%. The overall results of the study showed that 50 g/l of animal wastes supplement in the ratio of 1:4 with pyrene contaminated soils are most effective in degradation processes. Also the mixed culture of bacteria and fungi enhanced pyrene mineralization and degradation more than single culture.
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Affiliation(s)
| | - A. O. Umeojiakor
- Department of Forestry and Wildlife Technology, Federal University of Technology Owerri, P.M.B.1526, Owerri, Imo State Nigeria
| | - J. O. Osarumwense
- Department of Science Laboratory Technology, University of Benin, P.M.B.1154, Benin City, Edo State Nigeria
| | - P. E. Walter
- Department of Chemical Engineering, Federal Polytechnic Nekede, P.M.B. 1036, Owerri, Imo State Nigeria
| | - S. O. Anyikwa
- Department of Chemical Engineering, Federal University of Technology, Owerri, P.M.B. 1526, Owerri, Imo State Nigeria
| | - A. N. Ifegbo
- Department of Chemical Engineering, Federal Polytechnic Nekede, P.M.B. 1036, Owerri, Imo State Nigeria
| | - C. C. Nwanwe
- Department of Minerals and Petroleum Resources Engineering Technology, Federal Polytechnic Nekede, P.M.B.1036, Owerri, Imo State Nigeria
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4
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Tao Y, Monfort O, Brigante M, Zhang H, Mailhot G. Phenanthrene decomposition in soil washing effluents using UVB activation of hydrogen peroxide and peroxydisulfate. CHEMOSPHERE 2021; 263:127996. [PMID: 33297035 DOI: 10.1016/j.chemosphere.2020.127996] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/08/2020] [Accepted: 08/10/2020] [Indexed: 06/12/2023]
Abstract
In this work, the decomposition of phenanthrene (PHE) in mimic and real soil washing (SW) effluents was investigated using UVB light assisted activation of hydrogen peroxide (H2O2) and peroxydisulfate (PDS) oxidation processes. The impact of oxidant concentration, initial pH, and coexisting inorganic anions (Cl-, HCO3- and NO3-) on PHE removal was evaluated. PHE degradation efficiency under UVB irradiation followed the order of UVB/PDS > UVB/H2O2 > UVB. The increase of PHE decomposition efficiency was observed with increasing oxidant dose in the range of 2-30 mM upon the two processes. It was found Cl- played different roles in the two activation systems depending on the solution pH and Cl- concentration. The influence of HCO3- on PHE elimination was negligible in the UVB/PDS process, while an inhibitory effect was observed in the UVB/H2O2 system. Nitrate inhibited the PHE decay in both UVB/H2O2 and UVB/PDS processes at the investigated pH 3.3, 7.1 and 8.6. Finally, the application of the two activation processes to the treatment of real SW effluents indicated that up to 85.0% of PHE degradation could be reached under 6 h UVB irradiation with PDS, indicating UVB/PDS process is a promising alternative for SW effluent treatment.
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Affiliation(s)
- Yufang Tao
- Department of Environmental Science and Engineering, Wuhan University, 430079, China; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, F-63000, Clermont-Ferrand, France
| | - Olivier Monfort
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, F-63000, Clermont-Ferrand, France
| | - Marcello Brigante
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, F-63000, Clermont-Ferrand, France
| | - Hui Zhang
- Department of Environmental Science and Engineering, Wuhan University, 430079, China.
| | - Gilles Mailhot
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, F-63000, Clermont-Ferrand, France.
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Akinlua A, Jochmann MA, Lorenzo-Parodi N, Stojanovic N, Kaziur W, Schmidt TC. A green approach for the extraction of diamondoids from petroleum source rock. Anal Chim Acta 2019; 1091:23-29. [PMID: 31679571 DOI: 10.1016/j.aca.2019.08.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/05/2019] [Accepted: 08/29/2019] [Indexed: 11/16/2022]
Abstract
Extraction of adamantanes and diamantanes from petroleum source rock using nonionic surfactant was investigated and the optimum conditions for yields of the diamondoids were determined. The conventionally used accelerated solvent extraction method was compared to an innovative microwave-assisted nonionic surfactant extraction (MANSE). A three-level full factorial design of experiment (DoE) was adopted for the optimization of MANSE, involving solvent concentration, extraction temperature as well as extraction time. In-tube extraction (ITEX-2) using TENAX TA as sorbent in combination with gas chromatography-mass spectrometry (GC-MS) was used to determine the diamondoids in the extract. The results revealed that solvent concentration, extraction temperature and time have significant effects on extraction yields of the diamondoids. 0.04 M was the optimum surfactant concentration for extraction of both, adamantane and diamantane. The highest yields of the diamondoids were obtained at extraction temperature of 80 °C. The optimum extraction time for both adamantane and diamantane was 10 min. In comparison with the accelerated solvent extraction method, the results showed that MANSE is more efficient. This study has revealed that MANSE is a robust and efficient environmentally benign sample preparation method for geochemical evaluation of petroleum source rock.
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Affiliation(s)
- Akinsehinwa Akinlua
- Fossil Fuels and Environmental Geochemistry Group, Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria.
| | - Maik A Jochmann
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Nerea Lorenzo-Parodi
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Nenad Stojanovic
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Wiebke Kaziur
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Torsten C Schmidt
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany; Centre for Water and Environmental Research (ZWU), University of Duisburg-Essen, Universitätsstrasse 5, 45141, Essen, Germany; IWW Water Centre, Moritzstrasse 26, 45476, Mülheim an der Ruhr, Germany
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6
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Kahana A, Schmitt-Kopplin P, Lancet D. Enceladus: First Observed Primordial Soup Could Arbitrate Origin-of-Life Debate. ASTROBIOLOGY 2019; 19:1263-1278. [PMID: 31328961 PMCID: PMC6785169 DOI: 10.1089/ast.2019.2029] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 06/03/2019] [Indexed: 05/02/2023]
Abstract
A recent breakthrough publication has reported complex organic molecules in the plumes emanating from the subglacial water ocean of Saturn's moon Enceladus (Postberg et al., 2018, Nature 558:564-568). Based on detailed chemical scrutiny, the authors invoke primordial or endogenously synthesized carbon-rich monomers (<200 u) and polymers (up to 8000 u). This appears to represent the first reported extraterrestrial organics-rich water body, a conceivable milieu for early steps in life's origin ("prebiotic soup"). One may ask which origin-of-life scenario appears more consistent with the reported molecular configurations on Enceladus. The observed monomeric organics are carbon-rich unsaturated molecules, vastly different from present-day metabolites, amino acids, and nucleotide bases, but quite chemically akin to simple lipids. The organic polymers are proposed to resemble terrestrial insoluble kerogens and humic substances, as well as refractory organic macromolecules found in carbonaceous chondritic meteorites. The authors posit that such polymers, upon long-term hydrous interactions, might break down to micelle-forming amphiphiles. In support of this, published detailed analyses of the Murchison chondrite are dominated by an immense diversity of likely amphiphilic monomers. Our specific quantitative model for compositionally reproducing lipid micelles is amphiphile-based and benefits from a pronounced organic diversity. It thus contrasts with other origin models, which require the presence of very specific building blocks and are expected to be hindered by excess of irrelevant compounds. Thus, the Enceladus finds support the possibility of a pre-RNA Lipid World scenario for life's origin.
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Affiliation(s)
- Amit Kahana
- Department of Molecular Genetics, the Weizmann Institute of Science, Rehovot, Israel
| | - Philippe Schmitt-Kopplin
- Helmholtz Zentrum Muenchen, Research Unit Analytical BioGeoChemistry, Neuherberg, Germany
- Technische Universität München, Chair of Analytical Food Chemistry, Freising-Weihenstephan, Germany
| | - Doron Lancet
- Department of Molecular Genetics, the Weizmann Institute of Science, Rehovot, Israel
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7
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Nourafkan E. Evaluation of adsorption of nonionic surfactants blend at water/oil interfaces. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2017.1381618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ehsan Nourafkan
- School of Chemical and Process Engineering, University of Leeds, Leeds, UK
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8
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Ma L, Deng F, Yang C, Guo C, Dang Z. Bioremediation of PAH-contaminated farmland: field experiment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:64-72. [PMID: 27838911 DOI: 10.1007/s11356-016-7906-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 10/11/2016] [Indexed: 06/06/2023]
Abstract
The agricultural soil contaminated by polycyclic aromatic hydrocarbons (PAHs) is gradually emerging and becoming serious in China with the rapid development of economy. To reduce the risk of PAHs in agricultural soil and guarantee the food safety, the biological agent that Mycobacterium gilvum immobilized on modified peanut shell powder enhanced remediation of polycyclic aromatic hydrocarbon-contaminated vegetable farmland was investigated under the conditions of the field experiment. The results indicated that adding biological agent could promote PAH degradation in the soil, especially high-ring PAHs. The degradation rates of PAHs in the soil could be further improved to 16.5-43.5 %, respectively, compared with the soil without the biological agent. Adding the biological agent could significantly improve soil dehydrogenase activity and microbial diversity. It also could reduce the enrichment of PAHs in mustard planted in the polluted field, which indicated that the biological treatments might be less ecological risk. The work suggested that adding the biological agent might be a promising in situ bioremediation strategy for PAH-contaminated farmland field.
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Affiliation(s)
- Lin Ma
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Fucai Deng
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
- School of Environmental and Biological Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Chen Yang
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Chuling Guo
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Zhi Dang
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
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9
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Mondal MH, Malik S, Saha B. Characterization of Pyrene Solubilization in Selective Micellar Media of Novel Bio-degradable Natural Surfactant Saponin (Extracted from Soap Nut) and Conventional Surfactant SDBS in Presence and Absence of Common Salt NaCl. TENSIDE SURFACT DET 2017. [DOI: 10.3139/113.110519] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Solubilisation of pyrene (PAHs) in aqueous micellar solutions of natural surfactant saponin and conventional surfactant sodium dodecylbenzene sulfonate (SDBS) has been examined by UV-Vis and steady state fluorescence spectrometry at 30°C. The effect of addition of common salt NaCl on the I1/I3 of fluorescence has also been determined. The experiment concludes that the pyrene molecules were incorporated in the palisade layers of both micelles because of their hydrophobic character. The interaction of pyrene with a neutral saponin micelle resulted in a red shift of UV absorption spectra, while the negative headed surfactant SDBS showed no such phenomena. The resulting thermodynamic parameters proved the better efficiency of the bio-surfactant saponin for the solubilization of pyrene with respect to that of the conventional surfactant SDBS. With increasing ionic strength (on addition of NaCl) the solubilization of pyrene was found to be better and effective in both the surfactant mediums.
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Affiliation(s)
- Monohar Hossain Mondal
- Chemical Sciences Laboratory , Government General Degree College, Singur, Hooghly-712409, WB , India
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan-713104, WB , India
| | - Susanta Malik
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan-713104, WB , India
| | - Bidyut Saha
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan-713104, WB , India
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Yadav SK, Parikh K, Kumar S. Solubilization potentials of single and mixed oppositely charged gemini surfactants: A case of polycyclic aromatic hydrocarbons. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.11.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Tuning of Cloud Point by the Nature of Surfactant Headgroup: Influence of Counterion and Additives. J SURFACTANTS DETERG 2016. [DOI: 10.1007/s11743-016-1860-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Posocco P, Perazzo A, Preziosi V, Laurini E, Pricl S, Guido S. Interfacial tension of oil/water emulsions with mixed non-ionic surfactants: comparison between experiments and molecular simulations. RSC Adv 2016. [DOI: 10.1039/c5ra24262b] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Smaller Span molecules occupy the free spaces between bulkier Tween molecules thus lowering interfacial tension as compared to those obtained for single surfactant systems.
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Affiliation(s)
- P. Posocco
- Molecular Simulation Engineering Laboratory (MOSE)
- Department of Engineering and Architecture (DEA)
- University of Trieste
- 34127 Trieste
- Italy
| | - A. Perazzo
- Department of Chemical
- Materials and Production Engineering
- University of Napoli Federico II
- 80125 Napoli
- Italy
| | - V. Preziosi
- Department of Chemical
- Materials and Production Engineering
- University of Napoli Federico II
- 80125 Napoli
- Italy
| | - E. Laurini
- Molecular Simulation Engineering Laboratory (MOSE)
- Department of Engineering and Architecture (DEA)
- University of Trieste
- 34127 Trieste
- Italy
| | - S. Pricl
- Molecular Simulation Engineering Laboratory (MOSE)
- Department of Engineering and Architecture (DEA)
- University of Trieste
- 34127 Trieste
- Italy
| | - S. Guido
- Department of Chemical
- Materials and Production Engineering
- University of Napoli Federico II
- 80125 Napoli
- Italy
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Li S, Pi Y, Bao M, Zhang C, Zhao D, Li Y, Sun P, Lu J. Effect of rhamnolipid biosurfactant on solubilization of polycyclic aromatic hydrocarbons. MARINE POLLUTION BULLETIN 2015; 101:219-225. [PMID: 26494247 DOI: 10.1016/j.marpolbul.2015.09.059] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 09/29/2015] [Accepted: 09/30/2015] [Indexed: 05/05/2023]
Abstract
Rhamnolipid biosurfactant-producing bacteria, Bacillus Lz-2, was isolated from oil polluted water collected from Dongying Shengli oilfield, China. The factors that influence PAH solubilization such as biosurfactant concentration, pH, ionic strength and temperature were discussed. The results showed that the solubilities of naphthalene, phenanthrene and pyrene increased linearly with the rise of rhamnolipid biosurfactant dose above the biosurfactant critical micelle concentration (CMC). Furthermore, the molar solubilization ratio (MSR) values decreased in the following order: naphthalene>phenanthrene>pyrene. However, the solubility percentage increased and followed the opposite order: pyrene>phenanthrene>naphthalene. The solubilities of PAHs in rhamnolipid biosurfactant solution increased with the rise of pH and ionic strength, and reached the maximum values under the conditions of pH11 and NaCl concentration 8 g · L(-1). The solubility of phenanthrene and pyrene increased with the rise of temperature.
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Affiliation(s)
- Shudong Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Yongrui Pi
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao 266100, China.
| | - Cong Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Dongwei Zhao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Yiming Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Peiyan Sun
- Key Laboratory of Marine Spill Oil Identification and Damage Assessment Technology, State Oceanic Administration, Qingdao 266033, China; North China Sea Environmental Monitoring Center of State Oceanic Administration, Qingdao 266033, China
| | - Jinren Lu
- College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao 266100, China
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Boulakradeche MO, Akretche DE, Cameselle C, Hamidi N. ENHANCED ELECTROKINETIC REMEDIATION OF HYDROPHOBIC ORGANICS CONTAMINATED SOILS BY THE COMBINATION OF NON-IONIC AND IONIC SURFACTANTS. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.091] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Pereyra MT, Fernández Band BS, Lista AG. Measurement uncertainty estimated from accuracy assessment by using an in-house reference material: two case studies for the extraction of total PAH in industrial wastewater sludges. Microchem J 2015. [DOI: 10.1016/j.microc.2014.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Fatma N, Panda M, Ansari WH, Kabir-ud-Din. Solubility enhancement of anthracene and pyrene in the mixtures of a cleavable cationic gemini surfactant with conventional surfactants of different polarities. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Hauswirth SC, Miller CT. A comparison of physicochemical methods for the remediation of porous medium systems contaminated with tar. JOURNAL OF CONTAMINANT HYDROLOGY 2014; 167:44-60. [PMID: 25190671 DOI: 10.1016/j.jconhyd.2014.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 07/31/2014] [Accepted: 08/11/2014] [Indexed: 06/03/2023]
Abstract
The remediation of former manufactured gas plant (FMGP) sites contaminated with tar DNAPLs (dense non-aqueous phase liquids) presents a significant challenge. The tars are viscous mixtures of thousands of individual compounds, including known and suspected carcinogens. This work investigates the use of combinations of mobilization, solubilization, and chemical oxidation approaches to remove and degrade tars and tar components in porous medium systems. Column experiments were conducted using several flushing solutions, including an alkaline-polymer (AP) solution containing NaOH and xanthan gum (XG), a surfactant-polymer (SP) solution containing Triton X-100 surfactant (TX100) and XG, an alkaline-surfactant-polymer (ASP) solution containing NaOH, TX100, and XG, and base-activated sodium persulfate both with and without added TX100. The effectiveness of the flushing solutions was assessed based on both removal of polycyclic aromatic hydrocarbon (PAH) mass and on the reduction of dissolved-phase PAH concentrations. SP flushes of 6.6 to 20.9 PV removed over 99% of residual PAH mass and reduced dissolved-phase concentrations by up to two orders of magnitude. ASP flushing efficiently removed 95-96% of residual PAH mass within about 2 PV, and significantly reduced dissolved-phase concentrations of several low molar mass compounds, including naphthalene, acenaphthene, fluorene, and phenanthrene. AP flushing removed a large portion of the residual tar (77%), but was considerably less effective than SP and ASP in terms of the effect on dissolved PAH concentrations. Persulfate was shown to oxidize tar components, primarily those with low molar mass, however, the overall degradation was relatively low (30-50% in columns with low initial tar saturations), and the impact on dissolved-phase concentrations was minimal.
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Affiliation(s)
- Scott C Hauswirth
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, 148 Rosenau Hall, CB 7431, Chapel Hill, NC 27599, United States.
| | - Cass T Miller
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, 148 Rosenau Hall, CB 7431, Chapel Hill, NC 27599, United States.
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Kabir-ud-Din, Naqvi AZ, Khan AB. Micellization and Interfacial Behaviour of Amitriptyline-Nonionic Surfactant Systems in Aqueous Medium. TENSIDE SURFACT DET 2013. [DOI: 10.3139/113.110084] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
By means of surface tension measurement (ring detachment method) mixed micellization and mixed adsorbed film formation were studied between an amphiphilic drug (amitriptyline hydrochloride – AMT) and nonionic surfactants (Tritons and Tweens) at different mole fractions. From the equilibrium surface tension measurements critical micelle concentration (CMC), maximum surface excess (Γmax) and minimum area per surfactant molecule at the air/solution interface (Amin) were obtained. The theories of Rosen, Rubingh and Maeda were applied to analyse the results. Different thermodynamic parameters, viz. free energy of micellization (ΔGo
m), standard Gibbs energy of adsorption (ΔGo
ads), and minimum energy of surface (Gmin) were evaluated. In the mixed micelles, presence of nonionic surfactants between the head groups of drug molecules decreases the repulsion among head groups. As a result, the CMC and Amin decrease while Γmax increases. Interaction parameters of micelles (βm) and monolayer (βs) indicate that the drug surfactant systems show better interaction at the interface than in micelles.
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Zendehboudi S, Ahmadi MA, Rajabzadeh AR, Mahinpey N, Chatzis I. Experimental study on adsorption of a new surfactant onto carbonate reservoir samples-application to EOR. CAN J CHEM ENG 2013. [DOI: 10.1002/cjce.21806] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sohrab Zendehboudi
- Department of Chemical Engineering; University of Waterloo; Waterloo; ON, Canada N2L 3G1
| | - Mohammad Ali Ahmadi
- Faculty of Petroleum Engineering; Petroleum University of Technology; Ahwaz; Khuzestan; Iran
| | - Amin Reza Rajabzadeh
- Department of Chemical Engineering; University of Waterloo; Waterloo; ON, Canada N2L 3G1
| | - Nader Mahinpey
- Department of Chemical and Petroleum Engineering; University of Calgary; Calgary; AB, Canada T2N 1N4
| | - Ioannis Chatzis
- Department of Chemical Engineering; University of Waterloo; Waterloo; ON, Canada N2L 3G1
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Fatma N, Ansari WH, Panda M, ud-Din K. Mixed Micellization Behavior of Gemini (Cationic Ester-Bonded) Surfactants with Conventional (Cationic, Anionic and Nonionic) Surfactants in Aqueous Medium. ACTA ACUST UNITED AC 2013. [DOI: 10.1524/zpch.2013.0288] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Two cationic ester-bonded cleavable gemini surfactants of different hydrophobic chain length ethane-1,2-diyl bis(N,N-dimethyl-N-alkylammoniumacetoxy)dichloride, C
n
H2n+1(CH3)2N+(CH2COOCH2)2N+(CH3)2C
n
H2n+1. 2Cl- (n-E2-n, n=12, 16), having ester linkage in the spacer, were synthesized adopting the reported procedure. Physicochemical properties of the single and binary gemini-conventional mixed micelles of different mole fractions were studied by conductivity measurements at 30 ºC. The conventional surfactants used were: DTAC (dodecyltrimethylammonium chloride), CTAC (hexadecyltrimethylammonium chloride), CPC (cetylpyridinium chloride), SDS (sodium dodecyl sulfate), SDBS (sodium dodecylbenzene sulfonate), TX-100 (t-octylphenoxypolyethoxyethanol) and Brij 58 (polyoxyethylene (20) cetyl ether). Whereas the critical micelle concentration (cmc) values for the dicationic geminis (12-E2-12 and 16-E2-16) were found to be very low as compared to the respective monomeric surfactant with the same number of carbon atoms in the hydrophobic chain per hydrophilic head group, those for all the binary systems were found to be less than the ideal cmc values studied at different mole fractions of the geminis. This synergistic interaction between the surfactants has been analyzed in the light of various theoretical models such as Clint, Rubingh, Motomura and Maeda.
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Affiliation(s)
- Nazish Fatma
- Aligarh Muslim University, Department of Chemistry, Aligarh 202002, Indien
| | | | | | - Kabir ud-Din
- Aligarh Muslim University, Department of Chemistry, Aligarh - 202002, Indien
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21
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Hussein TA, Ismail ZZ. Desorption of selected PAHs as individuals and as a ternary PAH mixture within a water-soil-nonionic surfactant system. ENVIRONMENTAL TECHNOLOGY 2013; 34:351-361. [PMID: 23530349 DOI: 10.1080/09593330.2012.696718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Remediation of soil contaminated with polycyclic aromatic hydrocarbons (PAHs) is a major environmental concern due to the toxic and carcinogenic properties of these compounds. Desorption and partitioning of anthracene, fluorene and pyrene within soil-aqueous systems in the presence of the nonionic surfactants, Triton X-100 and Tween 80,were studied. The results showed that the addition of Tween 80 solution at 10 g/L initial concentration enhanced the desorption of PAHs by 49.6%, 10.7% and 70.2% for anthracene, fluorene, and pyrene, respectively, from soil into aqueous phase at 72 h equilibration, while the addition of Triton X-100 could enhance the desorption of PAHs from soil by 59.5%, 17.4% and 86.3% for anthracene, fluorene and pyrene, respectively, at similar experimental conditions. The desorption behaviour of the tested PAHs in a ternary mixture was changed relatively since, in the presence of less hydrophobic solutes, the solubility of more hydrophobic solutes was increased leading to a higher desorption rate. The results showed that hydrophobicity is the primary property that controls PAH desorption from soil and surfactant sorption onto the soils (Qm) in which the latter were found to be 3.75 x 10(-6) and 4.82 x 10(-6) mol/g for Triton X-100 and Tween 80, respectively.
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Affiliation(s)
- Taghreed A Hussein
- Department of Environmental Engineering, University of Baghdad, Baghdad, Iraq
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22
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Fatma N, Ansari WH, Panda M, ud-Din K. Mixed Micellization Behavior of Gemini (Cationic Ester-Bonded) Surfactants with Conventional (Cationic, Anionic and Nonionic) Surfactants in Aqueous Medium. Z PHYS CHEM 2012. [DOI: 10.1524/zpch.2012.0288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Tripathi R, Kambo N, Upadhyay SK. Premicellar/Micellar Inhibition in Alkaline KMnO4Oxidation of Reducing Sugars: A Kinetic Study. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.620869] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Kabir-ud-Din, Khan AB, Naqvi AZ. Mixed Micellization and Interfacial Properties of Nonionic Surfactants with the Phenothiazine Drug Promazine Hydrochloride at 30 °C. J SOLUTION CHEM 2012. [DOI: 10.1007/s10953-012-9884-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Ahmadi MA, Zendehboudi S, Shafiei A, James L. Nonionic Surfactant for Enhanced Oil Recovery from Carbonates: Adsorption Kinetics and Equilibrium. Ind Eng Chem Res 2012. [DOI: 10.1021/ie300269c] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohammad Ali Ahmadi
- Faculty of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran
| | - Sohrab Zendehboudi
- Chemical
Engineering Department, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1
| | - Ali Shafiei
- Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, Ontario,
Canada, N2L 3G1
| | - Lesley James
- Faculty
of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NL, Canada, A1B
3X5
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26
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Akinlua A, Jochmann MA, Qian Y, Sulkowski M, Schmidt TC. Factors Controlling Leaching of Polycyclic Aromatic Hydrocarbons from Petroleum Source Rock Using Nonionic Surfactant. Chromatographia 2012. [DOI: 10.1007/s10337-012-2179-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Removal of mercury by foam fractionation using surfactin, a biosurfactant. Int J Mol Sci 2011; 12:8245-58. [PMID: 22174661 PMCID: PMC3233467 DOI: 10.3390/ijms12118245] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 11/04/2011] [Accepted: 11/09/2011] [Indexed: 12/01/2022] Open
Abstract
The separation of mercury ions from artificially contaminated water by the foam fractionation process using a biosurfactant (surfactin) and chemical surfactants (SDS and Tween-80) was investigated in this study. Parameters such as surfactant and mercury concentration, pH, foam volume, and digestion time were varied and their effects on the efficiency of mercury removal were investigated. The recovery efficiency of mercury ions was highly sensitive to the concentration of the surfactant. The highest mercury ion recovery by surfactin was obtained using a surfactin concentration of 10 × CMC, while recovery using SDS required < 10 × CMC and Tween-80 >10 × CMC. However, the enrichment of mercury ions in the foam was superior with surfactin, the mercury enrichment value corresponding to the highest metal recovery (10.4%) by surfactin being 1.53. Dilute solutions (2-mg L−1 Hg2+) resulted in better separation (36.4%), while concentrated solutions (100 mg L−1) enabled only a 2.3% recovery using surfactin. An increase in the digestion time of the metal solution with surfactin yielded better separation as compared with a freshly-prepared solution, and an increase in the airflow rate increased bubble production, resulting in higher metal recovery but low enrichment. Basic solutions yielded higher mercury separation as compared with acidic solutions due to the precipitation of surfactin under acidic conditions.
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Joshi SC. Sol-Gel Behavior of Hydroxypropyl Methylcellulose (HPMC) in Ionic Media Including Drug Release. MATERIALS (BASEL, SWITZERLAND) 2011; 4:1861-1905. [PMID: 28824113 PMCID: PMC5448872 DOI: 10.3390/ma4101861] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Revised: 10/06/2011] [Accepted: 10/13/2011] [Indexed: 11/17/2022]
Abstract
Sol-gel transformations in HPMC (hydroxypropyl methylcellulose) are being increasingly studied because of their role in bio-related applications. The thermo-reversible behavior of HPMC is particularly affected by its properties and concentration in solvent media, nature of additives, and the thermal environment it is exposed to. This article contains investigations on the effects of salt additives in Hofmeister series on the HPMC gelation. Various findings regarding gelation with salt ions as well as with the ionic and non-ionic surfactants are presented. The gel formation in physiological salt fluids such as simulated gastric and intestine fluids is also examined with the interest in oral drug delivery systems. The processes of swelling, dissolution and dispersion of HPMC tablets in simulated bio-fluids are explored and the release of a drug from the tablet affected by such processes is studied. Explanations are provided based on the chemical structure and the molecular binding/association of HPMC in a media. The test results at the body or near-body temperature conditions helped in understanding the progress of the gelation process within the human body environment. The detailed interpretation of various molecule level interactions unfolded the sol-gel mechanisms and the influence of a few other factors. The obtained test data and the established mathematical models are expected to serve as a guide in customizing applications of HPMC hydrogels.
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Affiliation(s)
- Sunil C Joshi
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639 798, Singapore.
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29
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Zhao Z, Selvam A, Wong JWC. Synergistic effect of thermophilic temperature and biosurfactant produced by Acinetobacter calcoaceticus BU03 on the biodegradation of phenanthrene in bioslurry system. JOURNAL OF HAZARDOUS MATERIALS 2011; 190:345-350. [PMID: 21530078 DOI: 10.1016/j.jhazmat.2011.03.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Accepted: 03/14/2011] [Indexed: 05/30/2023]
Abstract
This study aimed at investigating the synergistic effect of temperature and biosurfactant on the biodegradation of phenanthrene in bioslurry. Bench-scale bioslurry experiments were conducted at 25 and 55°C. The desorption rate coefficients of phenanthrene (K(des)) obtained using the pseudo-first order model were 0.0026 and 0.0035 kg mg(-1)h(-1) at 25 and 55°C, respectively. Addition of 1500 mg L(-1) biosurfactant, produced by Acinetobacter calcoaceticus BU03, marginally increased the K(des) at 25°C since most of biosurfactant was sorbed onto soil; however, significantly increased the K(des) to 0.0087 kg mg(-1)h(-1) at 55°C as the thermophilic temperature reduced the adsorption of the biosurfactant onto soil and subsequently enhanced the desorption of phenanthrene. The biodegradation of phenanthrene well fitted pseudo-first order kinetics based on the assumption that biodegradation was limited by the desorption. About 78.7% of phenanthrene was degraded in 30 days at 25°C; and addition of biosurfactant did not affect the biodegradation. However, addition of the biosurfactant or inoculation of A. calcoaceticus BU03 at 55°C significantly enhanced the biodegradation by increasing the K(des). Results indicate that synergistic application of thermophilic temperature and biosurfactant or inoculation of biosurfactant producing microorganisms is an effective and innovative method to enhance the efficiency of PAH degradation in bioslurry system.
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Affiliation(s)
- Zhenyong Zhao
- Sino-Forest Applied Research Centre for Pearl River Delta Environment and Department of Biology, Hong Kong Baptist University, Hong Kong, China
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30
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Microwave-assisted nonionic surfactant extraction of aliphatic hydrocarbons from petroleum source rock. Anal Chim Acta 2011; 691:48-55. [DOI: 10.1016/j.aca.2011.02.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 02/04/2011] [Accepted: 02/08/2011] [Indexed: 11/17/2022]
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31
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Karnchanasest B, Hawker DW. A column test for leaching of organochlorines from soil by amphiphilic nonionic nanopolymers. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2011; 46:411-418. [PMID: 21614715 DOI: 10.1080/03601234.2011.572508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Amphiphilic nonionic cross-linked nanopolymers (NPs) were synthesized to examine removal of five organochlorines (OCs), namely lindane, heptachlor, aldrin, dieldrin, endrin, and DDT, from a range of Thai agricultural soils. The synthesized NP particles had polarity characteristics similar to those of nonionic surfactant micelles and were largely in the size range of 55-155 nm. This work aimed to determine the optimal conditions for leaching of OC contaminated soil with NPs and also to investigate the role and influence of soil properties on this leaching. An investigation of the concentrations of aqueous dispersions of these particles found that a concentration of 10 g L(-1). was found most effective in leaching the OCs from a column of spiked soil. The optimal contact time that allowed a NP dispersion and spiked soil to reach equilibrium was 48 h. The results indicated influencing factors for OC removal and soil remediation were properties both of the soil and the compounds themselves. Soil organic carbon (SOC) content and soil texture played an important role on the sorption as well as compound hydrophobicity expressed as log K(OW) values. The removal efficiency was found to be in the range of 85.2-92.8 % for all soil samples and in the order of DDT < aldrin < heptachlor < dieldrin < endrin < lindane regardless of soil type. This order is inversely related to the log K(OC) values of these compounds. For OC compounds with a similar molecular structure, removal efficiency was related to molecular weight (MW).
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Zhu CQ, Zheng H, Li DH, Li SH, Xu JG. Near-infrared hydrophobic probes as molecular light switch for cmc determination of triton X-100 solution. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20040221121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Elgh-Dalgren K, Arwidsson Z, Camdzija A, Sjöberg R, Ribé V, Waara S, Allard B, von Kronhelm T, van Hees PAW. Laboratory and pilot scale soil washing of PAH and arsenic from a wood preservation site: changes in concentration and toxicity. JOURNAL OF HAZARDOUS MATERIALS 2009; 172:1033-1040. [PMID: 19699582 DOI: 10.1016/j.jhazmat.2009.07.092] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 07/22/2009] [Accepted: 07/23/2009] [Indexed: 05/28/2023]
Abstract
Soil washing of a soil with a mixture of both polycyclic aromatic hydrocarbons (PAH) and As was evaluated in laboratory and pilot scale, utilizing both single and mixtures of different additives. The highest level of decontamination was achieved with a combination of 0.213 M of the chelating agent MGDA and 3.2 x CMC* of a non-ionic, alkyl glucoside surfactant at pH 12 (Ca(OH)(2)). This combination managed to reach Swedish threshold values within 1 0 min of treatment when performed at elevated temperature (50 degrees C), with initial contaminant concentrations of As=105+/-4 mg/kg and US-EPA PAH(16)=46.0+/-2.3mg/kg. The main mechanisms behind the removal were the pH effect for As and a combination of SOM ionization as a result of high pH and micellar solubilization for PAHs. Implementation of the laboratory results utilizing a pilot scale equipment did not improve the performance, which may be due to the shorter contact time between the washing solution and the particles, or changes in physical characteristics of the leaching solution due to the elevated pressure utilized. The ecotoxicological evaluation, Microtox, demonstrated that all soil washing treatments increased the toxicity of soil leachates, possibly due to increased availability of contaminants and toxicity of soil washing solutions to the test organism.
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Affiliation(s)
- Kristin Elgh-Dalgren
- Man-Technology-Environment Research Center, School of Science and Technology, Orebro University, SE-701 82 Orebro, Sweden.
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34
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Joshi SC, Chen B. Influence of surfactant properties on thermal behavior and sol-gel transitions in surfactant-HPMC mixtures. J Appl Polym Sci 2009. [DOI: 10.1002/app.30317] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Wan J, Yuan S, Mak K, Chen J, Li T, Lin L, Lu X. Enhanced washing of HCB contaminated soils by methyl-beta-cyclodextrin combined with ethanol. CHEMOSPHERE 2009; 75:759-764. [PMID: 19217639 DOI: 10.1016/j.chemosphere.2009.01.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2008] [Revised: 01/06/2009] [Accepted: 01/06/2009] [Indexed: 05/27/2023]
Abstract
The present study investigates the combined effect of cyclodextrin (CD) and cosolvent on the washing of hexachlorobenzene (HCB) from contaminated soils. Methyl-beta-cyclodextrin (MCD), ethanol, a natural soil (NS) and kaolin, were selected. Batch equilibrium experiments were conducted to quantify the performance of HCB solubilization and recovery by varied MCD/ethanol systems. Results show that with 30% or 50% of added ethanol, considerable synergistic effect on HCB solubilization was achieved in MCD/ethanol system. The formation of ternary MCD/ethanol/HCB complex is most likely responsible for the synergy. Similar synergy was further evidenced in the washing of HCB from kaolin and NS by MCD/ethanol system containing 30% ethanol. Unexpectedly, the combination of MCD and 50% ethanol exhibited negligible synergy of HCB recovery. The failure in promotion is probably due to a nonextractable fraction of HCB for NS, or a nearly complete HCB recovery from kaolin by 50% ethanol alone. Results also indicate that the synergistic effect of the MCD/ethanol system will be significantly hindered by a higher organic content and longer aging of the soil. Generally, our study suggests that compared to conventional CD or cosolvent-aided soil remediation, the combined use of CD and cosolvents would offer great superiority to the contaminant recovery.
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Affiliation(s)
- Jinzhong Wan
- Environmental Science Research Institute, Huazhong University of Science and Technology, Wuhan 430074, PR China
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36
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Igarashi T, Saitoh T, Hiraide M. Anionic Surfactant-Based Extraction of Polycyclic Aromatic Hydrocarbons from Sediment. BUNSEKI KAGAKU 2009. [DOI: 10.2116/bunsekikagaku.58.737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Toshio Igarashi
- Department of Molecular Design and Engineering, Graduated School of Engineering, Nagoya University
| | - Tohru Saitoh
- Department of Molecular Design and Engineering, Graduated School of Engineering, Nagoya University
| | - Masataka Hiraide
- Department of Molecular Design and Engineering, Graduated School of Engineering, Nagoya University
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37
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Shukla V, Kambo N, Upadhyay SK. Nonionic Micellar Catalyzed Oxidation of Vitamins by Chloramine-T in HClO4Medium: A Kinetic Study. J DISPER SCI TECHNOL 2008. [DOI: 10.1080/01932690701782921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Paria S. Surfactant-enhanced remediation of organic contaminated soil and water. Adv Colloid Interface Sci 2008; 138:24-58. [PMID: 18154747 DOI: 10.1016/j.cis.2007.11.001] [Citation(s) in RCA: 240] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2007] [Revised: 10/30/2007] [Accepted: 11/01/2007] [Indexed: 10/22/2022]
Abstract
Surfactant based remediation technologies for organic contaminated soil and water (groundwater or surface water) is of increasing importance recently. Surfactants are used to dramatically expedite the process, which in turn, may reduce the treatment time of a site compared to use of water alone. In fact, among the various available remediation technologies for organic contaminated sites, surfactant based process is one of the most innovative technologies. To enhance the application of surfactant based technologies for remediation of organic contaminated sites, it is very important to have a better understanding of the mechanisms involved in this process. This paper will provide an overview of the recent developments in the area of surfactant enhanced soil and groundwater remediation processes, focusing on (i) surfactant adsorption on soil, (ii) micellar solubilization of organic hydrocarbons, (iii) supersolubilization, (iv) density modified displacement, (v) degradation of organic hydrocarbon in presence surfactants, (vi) partitioning of surfactants onto soil and liquid organic phase, (vii) partitioning of contaminants onto soil, and (viii) removal of organics from soil in presence of surfactants. Surfactant adsorption on soil and/or sediment is an important step in this process as it results in surfactant loss reduced the availability of the surfactants for solubilization. At the same time, adsorbed surfactants will retained in the soil matrix, and may create other environmental problem. The biosurfactants are become promising in this application due to their environmentally friendly nature, nontoxic, low adsorption on to soil, and good solubilization efficiency. Effects of different parameters like the effect of electrolyte, pH, soil mineral and organic content, soil composition etc. on surfactant adsorption are discussed here. Micellar solubilization is also an important step for removal of organic contaminants from the soil matrix, especially for low aqueous solubility organic contaminants. Influences of different parameters such as single and mixed surfactant system, hydrophilic and hydrophobic chain length, HLB value, temperature, electrolyte, surfactant type that are very important in micellar solubilization are reviewed here. Microemulsion systems show higher capacity of organic hydrocarbons solubilization than the normal micellar system. In the case of biodegradation of organic hydrocarbons, the rate is very slow due to low water solubility and dissolution rate but the presence of surfactants may increase the bioavailability of hydrophobic compounds by solubilization and hence increases the degradation rate. In some cases the presence of it also reduces the rate. In addition to fundamental studies, some laboratory and field studies on removal of organics from contaminated soil are also reviewed to show the applicability of this technology.
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Shukla P, Kambo N, Upadhyay SK. Interaction of Nonionic Surfactants with Cerium(IV) in HClO 4Medium: A Kinetic Study. J DISPER SCI TECHNOL 2008. [DOI: 10.1080/01932690701728908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Ceraulo L, Fanara S, Ferrugia M, Turco Liveri V. Partitioning study of polycyclic aromatic hydrocarbons between water and some selected water-insoluble phases. ANNALI DI CHIMICA 2007; 97:915-924. [PMID: 17970307 DOI: 10.1002/adic.200790076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
An investigation on the partitioning of naphthalene and phenanthrene between water and some water-insoluble phases has been carried out by Uv-vis-NIR spectrophotometry. The analysis of the experimental results emphasized the role of intermolecular interactions and structural features of the hosting phases as driving forces of the partitioning of these polycyclic aromatic hydrocarbons. The critical comparison of the resulting distribution constants allowed to evaluate the potentials of some extracting phases to set up sensitive analytical methods and/or effective environment remediation technologies.
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Affiliation(s)
- Leopoldo Ceraulo
- Dipartimento di Chimica e Tecnologie Farmaceutiche, Università di Palermo, via Archirafi n.32, 90123 Palermo, Italy.
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41
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Inhibition of {cysteine–surfactant} aggregation in cysteine–cystine transformation by alkaline hexacyanoferrate(III); A kinetic study. Colloids Surf A Physicochem Eng Asp 2007. [DOI: 10.1016/j.colsurfa.2006.09.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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42
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Brown DG, Gupta L, Kim TH, Keith Moo-Young H, Coleman AJ. Comparative assessment of coal tars obtained from 10 former manufactured gas plant sites in the eastern United States. CHEMOSPHERE 2006; 65:1562-9. [PMID: 16698063 DOI: 10.1016/j.chemosphere.2006.03.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2005] [Revised: 03/27/2006] [Accepted: 03/29/2006] [Indexed: 05/09/2023]
Abstract
A comparative analysis was performed on eleven coal tars obtained from former manufactured gas plant sites in the eastern United States. Bulk properties analyzed included percent ash, Karl Fisher water content, viscosity and average molecular weight. Chemical properties included monocyclic- and polycyclic-aromatic hydrocarbon (PAH) concentrations, alkylated aromatic concentrations, and concentrations of aliphatic and aromatic fractions. It was found that there was at least an order-of-magnitude variation in all properties measured between the eleven coal tars. Additionally, two coal tars obtained from the same manufactured gas plant site had very different properties, highlighting that there can be wide variations in coal tar properties from different samples obtained from the same site. Similarities were also observed between the coal tars. The relative chemical distributions were similar for all coal tars, and the coal tars predominantly consisted of PAHs, with naphthalene being the single-most prevalent compound. The C(9-22) aromatic fraction, an indicator of all PAHs up to a molecular weight of approximately 276 gmole(-1), showed a strong power-law relationship with the coal tar average molecular weight (MW (ct)). And the concentrations of individual PAHs decreased linearly as MW (ct) increased up to ca. 1000 gmole(-1), above which they remained low and variable. Implications of these properties and their variation with MW (ct) on groundwater quality are discussed. Ultimately, while these similarities do allow generalities to be made about coal tars, the wide range of coal tar bulk and chemical properties reported here highlights the complex nature of coal tars.
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Affiliation(s)
- Derick G Brown
- Department of Civil and Environmental Engineering, Lehigh University, 13 East Packer Avenue, Bethlehem, PA 18015, USA.
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Solubilization of naphthalene and pyrene by sodium dodecyl sulfate (SDS) and polyoxyethylenesorbitan monooleate (Tween 80) mixed micelles. Colloids Surf A Physicochem Eng Asp 2006. [DOI: 10.1016/j.colsurfa.2006.03.036] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Shen CW, Boon SK, Chang YP, Yu T. Counter-current chromatography using hexane/surfactant-containing water solvent systems. J Chromatogr A 2006; 1123:66-70. [PMID: 16716336 DOI: 10.1016/j.chroma.2006.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2006] [Revised: 04/28/2006] [Accepted: 05/02/2006] [Indexed: 11/18/2022]
Abstract
We developed a n-hexane/surfactant-containing water solvent system in counter-current chromatography (CCC) in order to separate hydrophobic compounds. By using the upper phase as the mobile phase, we have separated steroid samples. Retention times of steroids progesterone and delta4-androstene-3,17-dione increased slightly by increasing the concentration below the critical micellar concentration (CMC) of surfactant sodium 1-heptanesulfonate. However, the retention times increased drastically while the SHS concentrations were above the CMC. The partition of these two steroids in the two phases was significantly dependent on the interaction with micelles. Aromatic hydrocarbons were not retained by the lower phase no matter what the surfactant concentrations were. Their hydrophobic interaction with n-hexane greatly exceeded that with the micellar solution. The retention times of esters, however, were only slightly affected by the surfactant addition even above the CMC. The weaker interaction between esters and the micellar solution was probably due to their higher polarity. The micellar solvent systems provide an alternative way for hydrophobic sample separations in CCC, but the performance is limited.
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Affiliation(s)
- Ching-Wei Shen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30050, Taiwan
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45
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Use of Cyclodextrins as An Environmentally Friendly Extracting Agent in Organic Aged-contaminated Soil Remediation. J INCL PHENOM MACRO 2006. [DOI: 10.1007/s10847-006-9094-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Viglianti C, Hanna K, de Brauer C, Germain P. Removal of polycyclic aromatic hydrocarbons from aged-contaminated soil using cyclodextrins: experimental study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2006; 140:427-35. [PMID: 16188357 DOI: 10.1016/j.envpol.2005.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2005] [Revised: 07/25/2005] [Accepted: 08/06/2005] [Indexed: 05/04/2023]
Abstract
The removal of polycyclic aromatic hydrocarbons (PAHs) from soil using water as flushing agent is relatively ineffective due to their low aqueous solubility. However, addition of cyclodextrin (CD) in washing solutions has been shown to increase the removal efficiency several times. Herein are investigated the effectiveness of cyclodextrin to remove PAH occurring in industrially aged-contaminated soil. Beta-cyclodextrin (BCD), hydroxypropyl-beta-cyclodextrin (HPCD) and methyl-beta-cyclodextrin (MCD) solutions were used for soil flushing in column test to evaluate some influent parameters that can significantly increase the removal efficiency. The process parameters chosen were CD concentration, ratio of washing solution volume to soil weight, and temperature of washing solution. These parameters were found to have a significant and almost linear effect on PAH removal from the contaminated soil, except the temperature where no significant enhancement in PAH extraction was observed for temperature range from 5 to 35 degrees C. The PAHs extraction enhancement factor compared to water was about 200.
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Affiliation(s)
- Christophe Viglianti
- Laboratoire d'Analyse Environnementale des Procédés et des Systèmes Industriels - INSA de Lyon, 9, rue de la Physique - 69621 Villeurbanne Cedex, France
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47
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Pandey E, Upadhyay SK. Effect of micellar aggregates on the kinetics of oxidation of α-aminoacids by chloramine-T in perchloric acid medium. Colloids Surf A Physicochem Eng Asp 2005. [DOI: 10.1016/j.colsurfa.2005.05.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Koparal S, Nii S, Kawaizumi F, Takahashi K. Use of Ultrasound for Tar Removal from Tar-Contaminated Sand. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2005. [DOI: 10.1252/jcej.38.835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Savas Koparal
- Department of Environmental Engineering, Anadolu University
| | - Susumu Nii
- Department of Chemical Engineering, Nagoya University
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49
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Zhu C, Zheng H, Li D, Li S, Xu J. Fluorescence quenching method for the determination of sodium dodecyl sulphate with near-infrared hydrophobic dye in the presence of Triton X-100. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2004; 60:3173-3179. [PMID: 15477161 DOI: 10.1016/j.saa.2004.02.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2003] [Accepted: 02/23/2004] [Indexed: 05/24/2023]
Abstract
A fluorophotometric method for the determination of anionic surfactant sodium dodecyl sulphate (SDS) was proposed. The method is based on the quenching effect of SDS on the fluorescence of near-infrared (NIR) hydrophobic dye, 2-[4'chloro-7'(3''hexadecyl-2''benzothiazolinylidene)-3',5'-(1''',3'''-propanediyl)-1',3',5'-heptatriene-1'-yl]-3-ethylbenzothiazolium iodide (dye I) in the presence of Triton X-100. The calibration graph is linear in the concentration range from 0 to 2 x 10(-6) mol L(-1) of SDS with a detection limit (LOD) of 8.3 x 10(-8) mol L(-1). The relative standard deviation for the determination of 7 x 10(-7) mol L(-1) SDS was 4.1%. Recoveries of 95.3-110.3% were found for the addition to 1.0 x 10(-6) mol L(-1) SDS in the analysis of environmental water samples. Preliminary research shows that the fluorescence quenching is due to the formation of dye aggregate facilitated by SDS.
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Affiliation(s)
- Changqing Zhu
- The Key Laboratory of Analytical Science of MOE, Department of Chemistry, Xiamen University, 361005, China
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50
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Sohmiya H, Kimura T, Fujita M, Ando T. The effect of heterogeneous solvent systems on sonochemical reactions: accelerated degradation of alkyl thiols in emulsion. ULTRASONICS SONOCHEMISTRY 2004; 11:435-439. [PMID: 15302032 DOI: 10.1016/j.ultsonch.2003.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2003] [Revised: 07/11/2003] [Accepted: 07/15/2003] [Indexed: 05/24/2023]
Abstract
Sonochemical reactions of alkyl and aryl thiols in water-organic mixed solvent systems were kinetically investigated. The reaction in the liquid-liquid interface apparently depends on the polarities, surface activities, vapor pressures and hydrophobicities of organic solvents and thiols. Interestingly, the rate jump in sonochemical disappearance of alkyl thiols was observed under emulsified conditions.
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Affiliation(s)
- Hajime Sohmiya
- Department of Chemistry, Shiga University of Medical Science, Seta, Otsu, 520-2192, Japan.
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