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Pandey K, Saha S. Encapsulation of zero valent iron nanoparticles in biodegradable amphiphilic janus particles for groundwater remediation. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130501. [PMID: 36462240 DOI: 10.1016/j.jhazmat.2022.130501] [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: 08/01/2022] [Revised: 11/06/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Reactive Zero Valent Iron (ZVI) nanoparticles have been widely explored for in situ ground water remediation to degrade both non-aqueous phase liquid (NAPL) and water-soluble contaminants. However, they usually suffer from rapid oxidation and severe agglomerations restricting their delivery at NAPL/water interface. Aim of this study was to encapsulate the ZVI nanoparticles (50 nm) in amphiphilic bicompartmental Janus particles (711 ± 11 nm) fabricated by EHDC (electrohydrodynamic co-jetting). The dual compartments were composed of PLA (polylactic acid) and a blend of PLA, PE (poly (hexamethylene 2,3-O-isopropylidenetartarate) and PAG (photo acid generator). Upon UV irradiation, PAG releases acid to unmask hydroxyl groups present in PE to make only PE compartment hydrophilic. The entrapped ZVI nanoparticles (20 w/w%; ∼99 % encapsulation efficiency) were observed to degrade both hydrophilic (methyl orange dye) and hydrophobic (trichloro ethylene) contaminants. UV treated Janus particles provided stable dispersion (dispersed up to 3 weeks in water), prolonged reactivity (∼24 days in contaminated water), and recyclability (recyclable up to 9 times) as compared to non-treated ones. In addition, the amphiphilic Janus particles demonstrated high transportability (>95%) through porous media (sand column) with very low attachment efficiency (0.07), making them a promising candidate to target contaminants at NAPL/water interface prevailed in groundwater.
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Affiliation(s)
- Kalpana Pandey
- Department of Materials Science and Engineering, Indian Institute of Technology, Delhi, India
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology, Delhi, India.
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Rossi MM, Alfano S, Amanat N, Andreini F, Lorini L, Martinelli A, Petrangeli Papini M. A Polyhydroxybutyrate (PHB)-Biochar Reactor for the Adsorption and Biodegradation of Trichloroethylene: Design and Startup Phase. Bioengineering (Basel) 2022; 9:bioengineering9050192. [PMID: 35621470 PMCID: PMC9137886 DOI: 10.3390/bioengineering9050192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/26/2022] [Accepted: 04/25/2022] [Indexed: 11/16/2022] Open
Abstract
In this work, polyhydroxy butyrate (PHB) and biochar from pine wood (PWB) are used in a mini-pilot scale biological reactor (11.3 L of geometric volume) for trichloroethylene (TCE) removal (80 mgTCE/day and 6 L/day of flow rate). The PHB-biochar reactor was realized with two sequential reactive areas to simulate a multi-reactive permeable barrier. The PHB acts as an electron donor source in the first “fermentative” area. First, the thermogravimetric (TGA) and differential scanning calorimetry (DSC) analyses were performed. The PHB-powder and pellets have different purity (96% and 93% w/w) and thermal properties. These characteristics may affect the biodegradability of the biopolymer. In the second reactive zone, the PWB works as a Dehalococcoides support and adsorption material since its affinity for chlorinated compounds and the positive effect of the “coupled adsorption and biodegradation” process has been already verified. A specific dechlorinating enriched culture has been inoculated in the PWB zone to realize a coupled adsorption and biodegradation process. Organic acids were revealed since the beginning of the test, and during the monitoring period the reductive dichlorination anaerobic pathway was observed in the first zone; no chlorinated compounds were detected in the effluent thanks to the PWB adsorption capacity.
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Affiliation(s)
- Marta M. Rossi
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (S.A.); (N.A.); (L.L.); (A.M.); (M.P.P.)
- Correspondence:
| | - Sara Alfano
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (S.A.); (N.A.); (L.L.); (A.M.); (M.P.P.)
| | - Neda Amanat
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (S.A.); (N.A.); (L.L.); (A.M.); (M.P.P.)
| | | | - Laura Lorini
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (S.A.); (N.A.); (L.L.); (A.M.); (M.P.P.)
| | - Andrea Martinelli
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (S.A.); (N.A.); (L.L.); (A.M.); (M.P.P.)
| | - Marco Petrangeli Papini
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (S.A.); (N.A.); (L.L.); (A.M.); (M.P.P.)
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Rossi MM, Dell’Armi E, Lorini L, Amanat N, Zeppilli M, Villano M, Petrangeli Papini M. Combined Strategies to Prompt the Biological Reduction of Chlorinated Aliphatic Hydrocarbons: New Sustainable Options for Bioremediation Application. Bioengineering (Basel) 2021; 8:bioengineering8080109. [PMID: 34436112 PMCID: PMC8389326 DOI: 10.3390/bioengineering8080109] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 11/16/2022] Open
Abstract
Groundwater remediation is one of the main objectives to minimize environmental impacts and health risks. Chlorinated aliphatic hydrocarbons contamination is prevalent and presents particularly challenging scenarios to manage with a single strategy. Different technologies can manage contamination sources and plumes, although they are usually energy-intensive processes. Interesting alternatives involve in-situ bioremediation strategies, which allow the chlorinated contaminant to be converted into non-toxic compounds by indigenous microbial activity. Despite several advantages offered by the bioremediation approaches, some limitations, like the relatively low reaction rates and the difficulty in the management and control of the microbial activity, can affect the effectiveness of a bioremediation approach. However, those issues can be addressed through coupling different strategies to increase the efficiency of the bioremediation strategy. This mini review describes different strategies to induce the reduction dechlorination reaction by the utilization of innovative strategies, which include the increase or the reduction of contaminant mobility as well as the use of innovative strategies of the reductive power supply. Subsequently, three future approaches for a greener and more sustainable intervention are proposed. In particular, two bio-based materials from renewable resources are intended as alternative, long-lasting electron-donor sources (e.g., polyhydroxyalkanoates from mixed microbial cultures) and a low-cost adsorbent (e.g., biochar from bio-waste). Finally, attention is drawn to novel bio-electrochemical systems that use electric current to stimulate biological reactions.
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Silvestri D, Wacławek S, Sobel B, Torres–Mendieta R, Pawlyta M, Padil VV, Filip J, Černík M. Modification of nZVI with a bio-conjugate containing amine and carbonyl functional groups for catalytic activation of persulfate. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117880] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Rodrigues R, Betelu S, Colombano S, Masselot G, Tzedakis T, Ignatiadis I. Elucidating the dechlorination mechanism of hexachloroethane by Pd-doped zerovalent iron microparticles in dissolved lactic acid polymers using chromatography and indirect monitoring of iron corrosion. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:7177-7194. [PMID: 30652270 DOI: 10.1007/s11356-019-04128-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
The degradation mechanism of the pollutant hexachloroethane (HCA) by a suspension of Pd-doped zerovalent iron microparticles (Pd-mZVI) in dissolved lactic acid polymers and oligomers (referred to as PLA) was investigated using gas chromatography and the indirect monitoring of iron corrosion by continuous measurements of pH, oxidation-reduction potential (ORP), and conductivity. The first experiments took place in the absence of HCA, to understand the evolution of the Pd-mZVI/PLA/H2O system. This showed that the evolution of pH, ORP, and conductivity is related to changes in solution chemistry due to iron corrosion and that the system is initially cathodically controlled by H+ mass transport to Pd surfaces because of the presence of an extensive PLA layer. We then investigated the effects of Pd-mZVI particles, temperature, initial HCA concentration, and PLA content on the Pd-mZVI/PLA/HCA/H2O system, to obtain a better understanding of the degradation mechanism. In all cases, HCA dechlorination first requires the production of atomic hydrogen H*-involving the accumulation of tetrachloroethylene (PCE) as an intermediate-before its subsequent reduction to non-chlorinated C2 and C4 compounds. The ratio between Pd-mZVI dosage, initial HCA concentration, and PLA content affects the rate of H* generation as well as the rate-determining step of the process. A pseudo-first-order equation can be applied when Pd-mZVI dosage is much higher than the theoretical stoichiometry (600 mg for [HCA]0 = 5-20 mg L-1). Our results indicate that the HCA degradation mechanism includes mass transfer, sorption, surface reaction with H*, and desorption of the product.
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Affiliation(s)
- Romain Rodrigues
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45060, Orléans Cedex 2, France.
- ADEME (French Environment and Energy Management Agency), 20 avenue du Grésillé, 49000, Angers Cedex 1, France.
- LGC (Chemical Engineering Laboratory), 118 route de Narbonne, 31062, Toulouse Cedex 9, France.
- Iris Instruments, 1 Avenue Buffon, 45100, Orléans, France.
| | - Stéphanie Betelu
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45060, Orléans Cedex 2, France
| | - Stéfan Colombano
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45060, Orléans Cedex 2, France
| | - Guillaume Masselot
- ADEME (French Environment and Energy Management Agency), 20 avenue du Grésillé, 49000, Angers Cedex 1, France
| | - Theodore Tzedakis
- LGC (Chemical Engineering Laboratory), 118 route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Ioannis Ignatiadis
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45060, Orléans Cedex 2, France
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Touomo-Wouafo M, Donkeng-Dazie J, Btatkeu-K BD, Tchatchueng JB, Noubactep C, Ludvík J. Role of pre-corrosion of Fe 0 on its efficiency in remediation systems: An electrochemical study. CHEMOSPHERE 2018; 209:617-622. [PMID: 29957522 DOI: 10.1016/j.chemosphere.2018.06.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/07/2018] [Accepted: 06/09/2018] [Indexed: 06/08/2023]
Abstract
The duration of in-situ generation of iron corrosion products (FeCPs) prior the remediation process (so called "aging" of metallic iron (Fe0)), was found as the key parameter affecting the efficiency of Fe0 for water remediation. Batch experiments were performed in buffered solutions (pH 4.0, 4.7 and 5.5) and under oxic conditions (presence of dissolved oxygen) using Zn2+ as probe contaminant. The time-dependent (0-16 d) concentration changes of aqueous Fe2+ and Zn2+ were monitored using differential pulse polarography (DPP). During the time of pre-corrosion varying from 0 to 6 d, an "induction period" of the corrosion occurs in the first one - 2 h when no Fe2+ ion is released in the solution. After this period, Fe2+ was identified in solution and its concentration progressively increases up to 6 h, then starts to decrease and after 6 d nearly disappears. Experiments with Zn2+ reveal that the most efficient Fe0 remediation occurs after 6 h of pre-corrosion. This coherence thus proves that the presence, the amount and the age of FeCPs ("degree" of corrosion) significantly impact the removal efficiency of Zn2+ in Fe0/H2O systems. The present study severely refute the wording 'reactivity loss' and states that progress in designing sustainable Fe0/H2O systems will not be achieved before the role of "active" FeCPs is clarified.
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Affiliation(s)
- Marquise Touomo-Wouafo
- Laboratory of Process and Chemical Engineering, Department of Applied Chemistry, National School of Agro-industrial Sciences, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon; J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 182 23, Prague 8, Czech Republic
| | - Joël Donkeng-Dazie
- J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 182 23, Prague 8, Czech Republic
| | - Brice D Btatkeu-K
- Laboratory of Process and Chemical Engineering, Department of Applied Chemistry, National School of Agro-industrial Sciences, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
| | - Jean Bosco Tchatchueng
- Laboratory of Process and Chemical Engineering, Department of Applied Chemistry, National School of Agro-industrial Sciences, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
| | - Chicgoua Noubactep
- Angewandte Geologie, Universität Göttingen, Goldschmidtstraße 3, D - 37077, Göttingen, Germany
| | - Jiří Ludvík
- J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 182 23, Prague 8, Czech Republic.
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Wacławek S, Gončuková Z, Adach K, Fijałkowski M, Černík M. Green synthesis of gold nanoparticles using Artemisia dracunculus extract: control of the shape and size by varying synthesis conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:24210-24219. [PMID: 29948700 DOI: 10.1007/s11356-018-2510-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
In this study, selective green synthesis of gold nanoparticles (nAu) with the use of Tarragon extract (Artemisia dracunculus) was investigated. Characterization of the synthetized nAu was carried out using several techniques including: UV-Vis, SEM, zeta potential analysis, DLS, and ATR-FTIR. Based on measurements of Tarragon extract by HPLC-MS, significant chemical substances participating as reducing and stabilizing agents were identified. FTIR confirmed typical functional groups that could be found in these acids on the nAu surface, such as O-H, C=O and C-O. The effects of various parameters (concentration of Tarragon extract, Au precursor, and initial pH of the synthesis) on the shape and size of the nanoparticles have been investigated. UV-Vis and SEM confirmed the formation of nAu at various concentrations of the extract and Au precursor and showed correlation between the added extract concentration and shift in maximal absorbance towards higher frequencies, indicating the formation of smaller nanoplates. Zeta potential determined at various pH levels revealed that its value decreased with pH, but for all experiments in the pH range of 2.8 to 5.0, the value is below - 30 mV, an absolute value high enough for long-term nAu stability. In order to evaluate nAu catalytic activity, the reduction of 4-nitrophenol to 4-aminophenol by sodium borohydride was used as a model system. The reaction takes place 1.5 times faster on Au-triangles than on Au-spherical NPs.
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Affiliation(s)
- Stanisław Wacławek
- Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 461 17, Liberec 1, Czech Republic.
| | - Zuzanna Gončuková
- Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 461 17, Liberec 1, Czech Republic
| | - Kinga Adach
- Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 461 17, Liberec 1, Czech Republic
| | - Mateusz Fijałkowski
- Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 461 17, Liberec 1, Czech Republic
| | - Miroslav Černík
- Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 461 17, Liberec 1, Czech Republic.
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Soliman AAE, Shenashen MA, El-Sewify IM, Taha GM, El-Taher MA, Yamaguchi H, Alamoudi AS, Selim MM, El-Safty SA. Mesoporous Organic-Inorganic Core-Shell Necklace Cages for Potentially Capturing Cd2+
Ions from Water Sources. ChemistrySelect 2017. [DOI: 10.1002/slct.201701247] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Abdel-Aty E. Soliman
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
- Environ. Applications of Nanomaterials Lab.; Chemistry Department, Faculty of Science; Aswan University; Aswan 81528 Egypt
| | - Mohamed A. Shenashen
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
| | - Islam M. El-Sewify
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
| | - Gharib M. Taha
- Environ. Applications of Nanomaterials Lab.; Chemistry Department, Faculty of Science; Aswan University; Aswan 81528 Egypt
| | - Mahmoud. A. El-Taher
- Environ. Applications of Nanomaterials Lab.; Chemistry Department, Faculty of Science; Aswan University; Aswan 81528 Egypt
| | - Hitoshi Yamaguchi
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
| | - Ahmad S. Alamoudi
- Desalination Technologies Research Institute (DTRI); Al-Jubail 31951 Saudi Arabia
| | - Mahmoud M. Selim
- Department of Mathematics; Al-Aflaj College of Science and Human Studies; Prince Sattam Bin Abdulaziz University; Al-Aflaj 710-11912 Saudi Arabia
| | - Sherif A. El-Safty
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
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