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Martínez de la Peña A, Rodríguez de San Miguel E, de Gyves J. MID-FTIR-PLS Chemometric Analysis of Cr(VI) from Aqueous Solutions Using a Polymer Inclusion Membrane-Based Sensor. MEMBRANES 2023; 13:740. [PMID: 37623801 PMCID: PMC10456335 DOI: 10.3390/membranes13080740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/11/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
A partial least squares (PLS) quantitative chemometric method based on the analysis of the mid-Fourier transform infrared spectroscopy (MID-FTIR) spectrum of polymer inclusion membranes (PIMs) used for the extraction of Cr(VI) from aqueous media is developed. The system previously optimized considering the variables membrane composition, extraction time, and pH, is characterized in terms of its adsorption isotherm, distribution coefficient, extraction percent, and enrichment factor. A Langmuir-type adsorption behavior with KL = 2199 cm3/mmol, qmax = 0.188 mmol/g, and 0 < RL < 1 indicates that metal adsorption is favorable. The characterization of the extraction reaction is performed as well, showing a 1:1 Cr(VI):Aliquat 336 ratio, in agreement with solvent extraction data. The principal component analysis (PCA) of the PIMs reveals a complex pattern, which is satisfactorily simplified and related to Cr(VI) concentrations through the use of a variable selection method (iPLS) in which the bands in the ranges 3451-3500 cm-1 and 3751-3800 cm-1 are chosen. The final PLS model, including the 100 wavelengths selected by iPLS and 10 latent variables, shows excellent parameter values with root mean square error of calibration (RMSEC) of 3.73115, root mean square error of cross-validation (RMSECV) of 6.82685, bias of -1.91847 × 10-13, cross-validation (CV) bias of 0.185947, R2 Cal of 0.98145, R2 CV of 0.940902, recovery% of 104.02 ± 4.12 (α = 0.05), sensitivity% of 0.001547 ppb, analytical sensitivity (γ) of 3.8 ppb, γ-1: 0.6 ppb-1, selectivity of 0.0155, linear range of 5.8-100 ppb, limit of detection (LD) of 1.9 ppb, and limit of quantitation (LQ) of 5.8 ppb. The developed PIM sensor is easy to implement as it requires few manipulations and a reduced number of chemical compounds in comparison to other similar reported systems.
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Affiliation(s)
| | - Eduardo Rodríguez de San Miguel
- Departamento de Química Analítica, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Mexico City 04510, Mexico; (A.M.d.l.P.); (J.d.G.)
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Ali BTI, Kusumawati Y, Jaafar J, Sulistiono DO, Widiastuti N. Low-cost membrane from polyethylene terephthalate bottle waste for water purification and chromium removal: modification and application. RSC Adv 2023; 13:8985-8995. [PMID: 36936853 PMCID: PMC10022489 DOI: 10.1039/d3ra00827d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/03/2023] [Indexed: 03/19/2023] Open
Abstract
River water has become contaminated with numerous hazardous compounds due to the rapid rise in population and industry expansion. Due to unchecked population growth and the improper disposal of electroplating industrial waste, issues with river water filtration and the elimination of chromium contamination have developed. Various technologies have been developed to overcome these problems. One of the technologies that have been proposed until now is membrane technology. On the other hand, the waste from plastic bottles, which grows yearly and now weighs 381.73 million tons, can create thin films or layers. Therefore, there is a lot of potential in employing plastic bottle trash as a low-cost, sustainable, and eco-friendly membrane material. In this study, the immersion-precipitation phase inversion method was used in the membrane preparation process from plastic bottle waste by modifying fillers (zeolite-NaY) and additives (LiCl and PEG-400) to improve membrane performance. The effect of filler and additive modification on the fabricated membrane was studied for its performance in water purification and chromium ion contaminant removal. The results demonstrated that the modified LiCl membrane performed optimally for water purification and the removal of chromium ions, along with a reduction in turbidity to 1.42 NTU (from 400 NTU) and a 54.75% removal of chromium.
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Affiliation(s)
- Badrut Tamam Ibnu Ali
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo Surabaya 60111 Indonesia
| | - Yuly Kusumawati
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo Surabaya 60111 Indonesia
| | - Juhana Jaafar
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia 81310 Skudai Johor Bahru Malaysia
| | - Dety Oktavia Sulistiono
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo Surabaya 60111 Indonesia
- Automotive Engineering, Engineering Department, Politeknik Negeri Jember Jember 68101 Indonesia
| | - Nurul Widiastuti
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo Surabaya 60111 Indonesia
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3
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Performance analysis of tubular membrane distillation modules: An experimental and CFD analysis. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.05.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Assessment of module arrangements of a direct contact membrane distillation process for a small-scale desalination plant. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1007/s43153-021-00171-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abdullah A, Al-Qahatani A, Alquraish M, Baily C, El-Mofty S, El-Shazly A. Experimental Investigation of Fabricated Graphene Nanoplates/Polystyrene Nanofibrous Membrane for DCMD. Polymers (Basel) 2021; 13:polym13203499. [PMID: 34685260 PMCID: PMC8537701 DOI: 10.3390/polym13203499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/24/2021] [Accepted: 10/09/2021] [Indexed: 12/30/2022] Open
Abstract
In recent decades, the fabrication of composite membranes using nanoparticles has played a vital role in membrane distillation (MD) technique. It could make available membranes with superior characteristics as excellent candidates for MD technique. The most well-known obstacles regarding the MD method are the low productivity and high cost. Thus, fabricating membranes with superior properties is a significant challenge. In the current study, a composite membrane has been fabricated using 0.25, 0.5, and 0.75 weight percent (wt.%) of graphene nanoparticles (GNPs) with polystyrene (PS) as a base polymer and characterized using SEM, FTIR, and contact angle. The characterization results prove the successful fabrication using electrospinning and the validity of the fabricated membranes to be applied to direct contact membrane distillation (DCMD). In addition, a DCMD experimental setup has been designed to examine the performance of the fabricated membranes and compare the performance of blank PS with composite PS/GNPs membranes. The results show that all fabricated membranes produced an approximately similar average flux of about 10 kg/m2 h, while the highest GNPs wt.% showed the highest salt rejection. Accordingly, this composite membrane has been examined at different operating parameters and showed stable performance. Moreover, feed temperature and the rate of flow have a positive impact on the overall performance of the DCMD.
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Affiliation(s)
- Ahmad Abdullah
- Department of Civil Engineering, College of Engineering, University of Bisha, P.O. Box 551, Bisha 67614, Saudi Arabia;
- Department of Civil Engineering, Faculty of Engineering, Aswan University, Aswan 81542, Egypt
- Correspondence: ; Tel.: +966-565912103
| | - Abdulaziz Al-Qahatani
- Department of Biology, College of Science, University of Bisha, P.O. Box 551, Bisha 61922, Saudi Arabia;
| | - Mohammed Alquraish
- Department of Mechanical Engineering, College of Engineering, University of Bisha, P.O. Box 551, Bisha 67614, Saudi Arabia;
| | - Colin Baily
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK;
| | - Salah El-Mofty
- Department of Civil Engineering, College of Engineering, University of Bisha, P.O. Box 551, Bisha 67614, Saudi Arabia;
| | - Ahmed El-Shazly
- Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), Alexandria 21934, Egypt;
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6
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Zhu C, Huang X, Li T, Wang Q, Yang G. Mechanisms for Cr(VI) reduction by alcohols over clay edges: Reactive differences between ethanol and ethanediol, and selective conversions to Cr(IV), Cr(III) and Cr(II) species. J Colloid Interface Sci 2021; 603:37-47. [PMID: 34186408 DOI: 10.1016/j.jcis.2021.06.123] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 11/30/2022]
Abstract
Catalytic reduction by alcohols over clay minerals works efficiently under a wide range of pH and represents an emerging approach to control Cr(VI) contamination. Herein, mechanisms for Cr(VI) adsorption and reduction at clay edges are addressed by dispersion-corrected periodic DFT calculations, considering different active sites, and types (monohydric and polyhydric) and coverage of alcohols. Cr(VI) adsorbs favorably at clay edges, forming direct bonds and strong H-bonds. Mechanisms for Cr(VI) reduction by alcohols are largely determined by π-conjugation development, and efficient conversion conduces to Cr(VI) removal. Cr(II), Cr(III) and Cr(IV) are useful for different purposes, and high selectivity towards these products is realized through rational catalysts design: 1) Cr(IV) dominates at Al3+ site with all ethanol coverage, Al3+ site with high-coverage ethanediol, and Mg2+ site with low-coverage ethanol; 2) Cr(III) dominates at Al3+ and Mg2+ sites with low-coverage ethanediol; 3) Cr(II) dominates at Mg2+ site with high-coverage ethanol or ethanediol. Results agree finely with experimental observations available, and significant new insights have been provided for Cr management and recycling. Detailed electronic structure and vibrational analyses, which can also guide future experimental studies, manifest that Cr(VI) reduction progresses are effectively monitored by ESR and FT-IR techniques.
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Affiliation(s)
- Chang Zhu
- College of Resources and Environments & Chongqing Key Laboratory of Soil Multi-scale Interfacial Process, Southwest University, Chongqing 400715, China
| | - Xiaoxiao Huang
- College of Resources and Environments & Chongqing Key Laboratory of Soil Multi-scale Interfacial Process, Southwest University, Chongqing 400715, China
| | - Tingting Li
- College of Resources and Environments & Chongqing Key Laboratory of Soil Multi-scale Interfacial Process, Southwest University, Chongqing 400715, China
| | - Qian Wang
- College of Resources and Environments & Chongqing Key Laboratory of Soil Multi-scale Interfacial Process, Southwest University, Chongqing 400715, China
| | - Gang Yang
- College of Resources and Environments & Chongqing Key Laboratory of Soil Multi-scale Interfacial Process, Southwest University, Chongqing 400715, China.
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7
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Lou J, Johnston J, Cath TY, Martinand D, Tilton N. Computational fluid dynamics simulations of unsteady mixing in spacer-filled direct contact membrane distillation channels. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Bae S, Yoon S, Kaplan U, Kim H, Han S, Lee W. Effect of groundwater ions (Ca 2+, Na +, and HCO 3-) on removal of hexavalent chromium by Fe(II)-phosphate mineral. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122948. [PMID: 32497861 DOI: 10.1016/j.jhazmat.2020.122948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
A systematic study was conducted to investigate the effect of major groundwater ions (i.e., Ca2+, Na+, and HCO3-) on removal of hexavalent chromium (Cr(VI)) by an Fe(II)-phosphate mineral (i.e., vivianite). The batch experiments revealed that the second-order rate constant for Cr(VI) removal by vivianite with Ca2+ + CO32- (0.076-1.90 mM) and Na+ + HCO3- (0.26-6.50 mM) was 1.5-5.2 times lower than that without these ions. The removal kinetics of Cr(VI) by vivianite was abruptly slowed down with the increased ion concentration, which showed their inhibitory effect on the reaction. The results of the geochemical modeling and density functional theory calculations showed that the presence of Ca2+ + HCO3- and Na+ + HCO3- can form less favorable Cr(VI) species (i.e., CaCrO4(aq) and NaCrO4-) on the Fe-B site of vivianite surface, leading to the inhibitory effect observed in this study. Finally, the X-ray absorption spectroscopy results showed that reductive immobilization of Cr(VI) to Cr(III) occurred by structural Fe(II) oxidation of vivianite to amorphous mixed-valence Fe-phosphate via an inner-sphere complexation. The results suggest that the presence of Ca2+, Na+, and HCO3- in phosphorous-enriched iron-reducing environments may lower the remedial efficiency of Cr(VI) removal.
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Affiliation(s)
- Sungjun Bae
- Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, South Korea
| | - Sunho Yoon
- Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, South Korea
| | - Ugras Kaplan
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology, D-76021 Karlsruhe, Germany
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea
| | - Seunghee Han
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, South Korea
| | - Woojin Lee
- Department of Civil and Environmental Engineering, Green Environment and Energy Lab., National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan.
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Ni W, Li Y, Zhao J, Zhang G, Du X, Dong Y. Simulation Study on Direct Contact Membrane Distillation Modules for High-Concentration NaCl Solution. MEMBRANES 2020; 10:membranes10080179. [PMID: 32764326 PMCID: PMC7465829 DOI: 10.3390/membranes10080179] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 07/23/2020] [Accepted: 08/03/2020] [Indexed: 11/30/2022]
Abstract
Membrane distillation technology, as a new membrane-based water treatment technology that combines the membrane technology and evaporation process, has the advantages of using low-grade heat, working at atmospheric pressure with simple configuration, etc. In this study, heat and mass transfer were coupled at the membrane surfaces through the user-defined function program. The effects of feed temperature, feed velocity and permeate velocity on temperature polarization were mainly investigated for a high-concentration NaCl solution. The temperature polarization was increased with the increase of feed temperature and the decrease of feed and permeate velocity. The effects of temperature, inlet velocity and solution concentration on the evaporation efficiency of the membrane module for co- and counter-current operations were investigated in detail. The counter-current operation performed better than co-current operation in most cases, except for the condition where the NaCl concentration was relatively low or the module length was long enough. In addition, the optimal membrane thickness for both PVDF and PTFE was studied. The optimal membrane thickness was found in the range of 10 to 20 μm, which corresponded to the highest permeate flux for the selected materials, pore size distribution, and operation conditions. Membrane material with lower thermal conductivity and larger porosity was prone to get higher permeate flux and had larger optimal membrane thickness. Increasing feed velocity or feed temperature could decrease the optimal membrane thickness.
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Affiliation(s)
- Weiming Ni
- Key Laboratory of Power Station Energy Transfer Conversion and System (North China Electric Power University), Ministry of Education, Beijing 102206, China; (W.N.); (J.Z.); (G.Z.)
| | - Yongli Li
- Key Laboratory of Power Station Energy Transfer Conversion and System (North China Electric Power University), Ministry of Education, Beijing 102206, China; (W.N.); (J.Z.); (G.Z.)
- Correspondence: (Y.L.); (X.D.); Tel.: +86-(10)-61773918 (Y.L.); +86-(10)-61773923 (X.D.)
| | - Juezhen Zhao
- Key Laboratory of Power Station Energy Transfer Conversion and System (North China Electric Power University), Ministry of Education, Beijing 102206, China; (W.N.); (J.Z.); (G.Z.)
| | - Gaoyuan Zhang
- Key Laboratory of Power Station Energy Transfer Conversion and System (North China Electric Power University), Ministry of Education, Beijing 102206, China; (W.N.); (J.Z.); (G.Z.)
| | - Xiaoze Du
- School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
- Correspondence: (Y.L.); (X.D.); Tel.: +86-(10)-61773918 (Y.L.); +86-(10)-61773923 (X.D.)
| | - Yingchao Dong
- School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China;
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Jashni E, Hosseini S. Promoting the electrochemical and separation properties of heterogeneous cation exchange membrane by embedding 8-hydroxyquinoline ligand: Chromium ions removal. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116118] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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11
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Aluminum Sulfate as an Innovative Draw Solute for Forward Osmosis Desalination. CHEMISTRY AFRICA 2020. [DOI: 10.1007/s42250-019-00092-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Computational fluid dynamics simulations of polarization phenomena in direct contact membrane distillation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.05.074] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Damtie MM, Woo YC, Kim B, Park KD, Hailemariam RH, Shon HK, Choi JS. Analysis of mass transfer behavior in membrane distillation: Mathematical modeling under various conditions. CHEMOSPHERE 2019; 236:124289. [PMID: 31306977 DOI: 10.1016/j.chemosphere.2019.07.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 06/26/2019] [Accepted: 07/02/2019] [Indexed: 06/10/2023]
Abstract
Four commercially available hydrophobic membranes with different pore sizes were separately used in a direct contact membrane distillation (DCMD) apparatus to investigate the effect of fouling on the mass transfer coefficient, and the dominant mass transport mode under different conditions defined by the temperature, membrane material, flow regime, and membrane pore size. Both ultrapure deionized water and simulated industrial wastewater were considered as the feed water. The results of the investigation confirmed that the fouling layer impacted the mass transport directly by resisting it, and indirectly by altering the heat transfer mechanism. In addition to the surface fouling layer, a significant number of particles were also observed to accumulate in the membrane pores. It was further determined that the contribution of Poiseuille flow to the entire mass transport was significant at higher temperatures when using a membrane with large pores. This highlighted the need for careful consideration of Poiseuille flow in the modeling and simulation of a membrane distillation (MD) mass transport process. It was also observed that the flow rate did not affect the Poiseuille flow and therefore did not directly impact the entire mass transfer. The study findings provide systematic insight for the development of a strategy for selecting an appropriate operating feed for DCMD and adjusting the permeate temperature to fit the prevailing water demand and environmental conditions.
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Affiliation(s)
- Mekdimu Mezemir Damtie
- Department of Construction Environment Engineering, KICT School, University of Science & Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Yun Chul Woo
- Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi- Do, 10223, Republic of Korea
| | - Bongchul Kim
- Water Transportation Environmental Center, Environmental Technology Division, Korea Testing Laboratory (KTL), 87 Digital-ro 26-gil, Guro-gu, Seoul, 08389, Republic of Korea
| | - Kwang-Duck Park
- Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi- Do, 10223, Republic of Korea
| | - Ruth Habte Hailemariam
- Department of Construction Environment Engineering, KICT School, University of Science & Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Ho Kyong Shon
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney (UTS), P.O. Box 123, Broadway, Ultimo, NSW 2007, Australia
| | - June-Seok Choi
- Department of Construction Environment Engineering, KICT School, University of Science & Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea; Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi- Do, 10223, Republic of Korea.
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Wang X, Wang T, Ma J, Liu H, Ning P. Synthesis and characterization of a new hydrophilic boehmite-PVB/PVDF blended membrane supported nano zero-valent iron for removal of Cr(VI). Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.05.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Bae S, Sihn Y, Kyung D, Yoon S, Eom T, Kaplan U, Kim H, Schäfer T, Han S, Lee W. Molecular Identification of Cr(VI) Removal Mechanism on Vivianite Surface. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:10647-10656. [PMID: 30141617 DOI: 10.1021/acs.est.8b01614] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Experimental and theoretical studies were conducted to identify the molecular-scale reaction mechanism for Cr(VI) removal by a ferrous phosphate mineral, vivianite. The surface-normalized rate constant for Cr(VI) removal in a vivianite suspension at pH 7 was higher than those obtained for other Fe(II)-containing minerals (i.e., magnetite and pyrite). The highest rate constant was obtained at pH 5, which was 35- and 264-times higher than those obtained at pH 7 and 9, respectively, indicating the dramatic acceleration of removal kinetics with decreasing pH of suspension. The X-ray photoelectron spectroscopy (XPS) and X-ray absorption near-edge structure (XANES) spectroscopy revealed that Cr(VI) removal involved reduction of Cr(VI) to Cr(III) coupled with oxidation of Fe(II) to Fe(III) on the vivianite surface. In addition, the density functional theory (DFT)-optimized structure of the Cr(VI)-vivianite complex was consistent with that obtained from extended X-ray absorption fine structure (EXAFS) spectroscopy and revealed the transformation of vivianite to amorphous Fe(III) phosphate. We also demonstrated that both Cr(VI) species, HCrO4̅ and CrO42-, can effectively bind to the vivianite surface, particularly on the Fe sites having 6 neighboring Fe molecules with 4 H2O and 2 PO4 moieties. Our results show that Cr(VI) is readily reduced to Cr(III) by vivianite via adsorption and inner-sphere complexation, suggesting that in anoxic iron-phosphate-enriched environments, vivianite may significantly influence the fate and transport of Cr(VI).
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Affiliation(s)
- Sungjun Bae
- Department of Civil and Environmental Engineering , Konkuk University , Seoul 05029 , Korea
| | - Youngho Sihn
- Department of Nuclear and Quantum Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Korea
| | - Daeseung Kyung
- Department of Urban Management , Land &Housing Institute, Korea Land & Housing Corporation , Daejeon 34047 , Korea
| | - Sunho Yoon
- Department of Civil and Environmental Engineering , Konkuk University , Seoul 05029 , Korea
| | - Taedaehyeong Eom
- Graduate School of Energy, Environment, Water, and Sustainability (EEWS) , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Korea
| | - Ugras Kaplan
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology , D-76021 Karlsruhe , Germany
| | - Hyungjun Kim
- Graduate School of Energy, Environment, Water, and Sustainability (EEWS) , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Korea
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Korea
| | - Thorsten Schäfer
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology , D-76021 Karlsruhe , Germany
- Applied Geology , Institute for Geosciences, Friedrich-Schiller-University Jena (FSU) , Burgweg 11 , D-07749 Jena , Germany
| | - Seunghee Han
- School of Earth Sciences and Environmental Engineering , Gwangju Institute of Science and Technology (GIST) , Gwangju 61005 , Korea
| | - Woojin Lee
- Department of Civil and Environmental Engineering, Green Environment and Energy Laboratory, National Laboratory Astana , Nazarbayev University , Astana 010000 , Kazakhstan
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Damtie MM, Kim B, Woo YC, Choi JS. Membrane distillation for industrial wastewater treatment: Studying the effects of membrane parameters on the wetting performance. CHEMOSPHERE 2018; 206:793-801. [PMID: 29803107 DOI: 10.1016/j.chemosphere.2018.05.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 04/09/2018] [Accepted: 05/13/2018] [Indexed: 06/08/2023]
Abstract
Substantial amounts of trace hazardous elements have been detected in industrial wastewater (e.g fluoride > 900 mg/L). Feed water characteristics, operational parameters, and membrane properties are major factors affecting flux and rejection of the MD process. Membrane parameters such as membrane material type and pore size have been investigated. Fluoride ion rejection was selected to setup a methodology to remove trace elements from wastewater by adjusting the membrane parameters in DCMD. Study of the fouling thickness of the MD membrane using pH and feed water composition revealed that a PVDF membrane with a smooth surface holds a thicker fouling layer, which enhances fluoride rejection while reducing the permeate flux. On the other hand, PTFE and PP membranes showed higher mass transfer and higher wetting performance, respectively. Therefore,a PVDF membrane with low organic feed water at higher alkaline pH can be utilized to obtain high-quality permeate, while PTFE can provide the highest flux with acceptable permeate water quality. Therefore, this methodology can be applied toidentify the optimum membrane to fit the required permeate flux, rejection requirements,and operating pH to treat any kind of non-volatileinorganic pollutants from industrial wastewater.
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Affiliation(s)
- Mekdimu Mezemir Damtie
- Department of Construction Environment Engineering, University of Science & Technology (UST), (34113) 217, Gajeong-ro, Yuseong-gu, Daejeon, South Korea.
| | - Bongchul Kim
- Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea
| | - Yun Chul Woo
- Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea
| | - June-Seok Choi
- Department of Construction Environment Engineering, University of Science & Technology (UST), (34113) 217, Gajeong-ro, Yuseong-gu, Daejeon, South Korea; Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea.
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17
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Li K, Zhang Y, Xu L, Zeng F, Hou D, Wang J. Optimizing stretching conditions in fabrication of PTFE hollow fiber membrane for performance improvement in membrane distillation. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.070] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Li Z, Wu Z, Zhang S, Shen J, Feng W, Du Y, Wan L, Zhang S. Defect state of indium-doped bismuth molybdate nanosheets for enhanced photoreduction of chromium(vi) under visible light illumination. Dalton Trans 2018; 47:8110-8120. [DOI: 10.1039/c8dt01807c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The construction of defect states is an effective method for regulating the energy band structure of photocatalytic semiconductor materials.
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Affiliation(s)
- Zhongfu Li
- College of Materials Science and Engineering
- Hunan University
- Changsha
- People's Republic of China
- Hunan Key Laboratory of Applied Environmental Photocatalysis
| | - Zhaohui Wu
- Hunan Key Laboratory of Applied Environmental Photocatalysis
- Changsha University
- Changsha 410005
- People's Republic of China
| | - Shumin Zhang
- College of Materials Science and Engineering
- Hunan University
- Changsha
- People's Republic of China
- Hunan Key Laboratory of Applied Environmental Photocatalysis
| | - Jie Shen
- Hunan Key Laboratory of Applied Environmental Photocatalysis
- Changsha University
- Changsha 410005
- People's Republic of China
| | - Wenhui Feng
- Hunan Key Laboratory of Applied Environmental Photocatalysis
- Changsha University
- Changsha 410005
- People's Republic of China
| | - Yi Du
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
- Qilu University of Technology (Shandong Academy of Sciences)
- Jinan 250353
- People's Republic of China
| | - Long Wan
- College of Materials Science and Engineering
- Hunan University
- Changsha
- People's Republic of China
| | - Shiying Zhang
- Hunan Key Laboratory of Applied Environmental Photocatalysis
- Changsha University
- Changsha 410005
- People's Republic of China
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19
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Hexavalent Chromium Removal from Model Water and Car Shock Absorber Factory Effluent by Nanofiltration and Reverse Osmosis Membrane. Int J Anal Chem 2017; 2017:7415708. [PMID: 28819360 PMCID: PMC5551522 DOI: 10.1155/2017/7415708] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/18/2017] [Accepted: 06/14/2017] [Indexed: 11/17/2022] Open
Abstract
Nanofiltration and reverse osmosis are investigated as a possible alternative to the conventional methods of Cr(VI) removal from model water and industrial effluent. The influences of feed concentration, water recovery, pH, and the coexisting anions were studied. The results have shown that retention rates of hexavalent chromium can reach 99.7% using nanofiltration membrane (NF-HL) and vary from 85 to 99.9% using reverse osmosis membrane (RO-SG) depending upon the composition of the solution and operating conditions. This work was also extended to investigate the separation of Cr(VI) from car shock absorber factory effluent. The use of these membranes is very promising for Cr(VI) water treatment and desalting industry effluent. Spiegler-Kedem model was applied to experimental results in the aim to determine phenomenological parameters, the reflection coefficient of the membrane (σ), and the solute permeability coefficient (Ps). The convective and diffusive parts of the mass transfer were quantified with predominance of the diffusive contribution.
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20
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Wang X, Cong S, Wang P, Ma J, Liu H, Ning P. Novel green micelles Pluronic F-127 coating performance on nano zero-valent iron: Enhanced reactivity and innovative kinetics. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.09.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Feng Y, Xiong T, Jiang S, Liu S, Hou H. Mechanical properties and chemical resistance of electrospun polyterafluoroethylene fibres. RSC Adv 2016. [DOI: 10.1039/c5ra27676d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A very small addition of PEO during electrospinning led to fibrous PTFE membranes with excellent mechanical properties and chemical resistance.
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Affiliation(s)
- Yan Feng
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330027
- PR China
| | - Tianrou Xiong
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330027
- PR China
| | - Shaohua Jiang
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330027
- PR China
| | - Shuwu Liu
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330027
- PR China
| | - Haoqing Hou
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330027
- PR China
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22
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23
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Dasgupta J, Mondal D, Chakraborty S, Sikder J, Curcio S, Arafat HA. Nanofiltration based water reclamation from tannery effluent following coagulation pretreatment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 121:22-30. [PMID: 26188702 DOI: 10.1016/j.ecoenv.2015.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/26/2015] [Accepted: 07/03/2015] [Indexed: 06/04/2023]
Abstract
Coagulation-nanofiltration based integrated treatment scheme was employed in the present study to maximize the removal of toxic Cr(VI) species from tannery effluents. The coagulation pretreatment step using aluminium sulphate hexadecahydrate (alum) was optimized by response surface methodology (RSM). A nanofiltration unit was integrated with this coagulation pre-treatment unit and the resulting flux decline and permeate quality were investigated. Herein, the coagulation was conducted under response surface-optimized operating conditions. The hybrid process demonstrated high chromium(VI) removal efficiency over 98%. Besides, fouling of two of the tested nanofiltration membranes (NF1 and NF3) was relatively mitigated after feed pretreatment. Nanofiltration permeation fluxes as high as 80-100L/m(2)h were thereby obtained. The resulting permeate stream quality post nanofiltration (NF3) was found to be suitable for effective reuse in tanneries, keeping the Cr(VI) concentration (0.13mg/L), Biochemical Oxygen Demand (BOD) (65mg/L), Chemical Oxygen Demand (COD) (142mg/L), Total Dissolved Solids (TDS) (108mg/L), Total Solids (TS) (86mg/L) and conductivity levels (14mho/cm) in perspective. The process water reclaiming ability of nanofiltration was thereby substantiated and the effectiveness of the proposed hybrid system was thus affirmed.
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Affiliation(s)
- J Dasgupta
- Department of Chemical Engineering, National Institute of Technology Durgapur, West Bengal 713209, India
| | - D Mondal
- Department of Chemical Engineering, National Institute of Technology Durgapur, West Bengal 713209, India
| | - S Chakraborty
- Department of Informatics, Modeling, Electronics and Systems Engineering, University of Calabria, Via P. Bucci, Cubo-42a, 87036 Rende, CS, Italy
| | - J Sikder
- Department of Chemical Engineering, National Institute of Technology Durgapur, West Bengal 713209, India.
| | - S Curcio
- Department of Informatics, Modeling, Electronics and Systems Engineering, University of Calabria, Via P. Bucci, Cubo-42a, 87036 Rende, CS, Italy
| | - H A Arafat
- Institute Center for Water and Environment (iWater), Department of Chemical and Environmental Engineering, Masdar Institute of Science and Technology, PO Box 54224, Abu Dhabi, United Arab Emirates
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