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Ashrafizadeh SN, Ganjizade A. Liquid foams: Properties, structures, prevailing phenomena and their applications in chemical/biochemical processes. Adv Colloid Interface Sci 2024; 325:103109. [PMID: 38367337 DOI: 10.1016/j.cis.2024.103109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 12/12/2023] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
Liquid foams are gas-liquid dispersions with flexible structures that provide high gas-liquid interfaces. This property nominates liquid foams as excellent gas-liquid contactors, systems that are widely used in the chemical and biochemical industries. However, challenges such as a lack of comprehensive understanding and foam instability have historically hindered their widespread industrial use in most applications. It was not until the recent development of nanofluidics, nanotechnology, surface science, and other related fields that the understanding, analysis, and control of foam phenomena improved. This led to the development of innovative stabilization techniques and foam-based unit operations in chemical and biochemical processes, each of which requires in-depth and exclusive reviews to fully comprehend their potential and limitations and to identify areas for further improvement and innovation. This paper reviews the foams, the common phenomena in them, the characteristics that make them suitable for chemical/biochemical engineering, reports on their current applications and recent developments in this field.
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Affiliation(s)
- Seyed Nezameddin Ashrafizadeh
- Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran.
| | - Ardalan Ganjizade
- Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran
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2
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Song T, Wang S, Gao W, Zhang C, Xu Y, Lin X, Yang M. Construction of UiO-66-NH 2 decorated by MoS 2 QDs as photocatalyst for rapid and effective visible-light driven Cr(VI) reduction. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115304. [PMID: 37506441 DOI: 10.1016/j.ecoenv.2023.115304] [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: 05/19/2023] [Revised: 07/13/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
The photoactive metal-organic frameworks (MOFs) are good candidates for photocatalysts, but the quick electron-hole pairs recombination has greatly restricted the photocatalytic ability of MOFs. To improve the photoactivity of MOFs, MOFs-based composite materials have been extensively studied. Here, we successfully integrated MoS2 quantum dots (QDs) with UiO-66-NH2 for the first time under hydrothermal conditions. The as-prepared MoS2 QDs/UiO-66-NH2 (MS-U) had good visible light response ability (absorption edge at 445 nm), and charge separation and transfer ability, which lays the foundation for the photocatalytic Cr(VI) reduction. Photocatalytic studies revealed that MoS2 QDs-5/UiO-66-NH2 (MS-U-5) had superior Cr(VI) reduction activity than pure MoS2 QDs and UiO-66-NH2. MS-U-5 could remove 98% Cr(VI) at pH= 2 with visible light irradiation for 20 min, which is the fastest visible light driven Cr(VI) reduction rate among the reported MOFs-based composite photocatalysts without the presence of any cocatalysts or scavengers as far as we know. Importantly, MS-U-5 could be reused at least three times. In the end, the possible electron transfer path and mechanism of Cr(VI) reduction was also investigated.
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Affiliation(s)
- Tianqun Song
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China; Tianjin University of Technology, Tianjin 300384, China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
| | - Shuang Wang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Wanting Gao
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Chudi Zhang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Yixin Xu
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Xin Lin
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Mei Yang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China.
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García-Figueroa AA, Albijanic B, Zarazua-Escobar MA, Lopez-Cervantes JL, Gracia-Fadrique J. Model for Investigating Relationships between Surfactant Micropollutant Properties and Their Separation from Liquid in a Bubble Column. ACS OMEGA 2023; 8:11717-11724. [PMID: 37033832 PMCID: PMC10077439 DOI: 10.1021/acsomega.2c05114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 02/20/2023] [Indexed: 06/19/2023]
Abstract
The removal of surfactant micropollutants, such as dyes, pharmaceuticals, and proteins, through foam is very important in biotechnology and wastewater treatment. The literature shows that previous models consider mass balances within the foam but not the adsorption dynamics of micropollutant surfactants on bubble surfaces in the liquid solution. Thus, the main objective of this work is to examine the removal of surfactant micropollutants in a bubble column considering both mass balance and adsorption dynamics to calculate surfactant transport from the liquid bulk to the bubble surface. This allows investigation of the relationships between surfactant hydrophobicity and surfactant separation efficiency from the liquid. It was found that the removal of the surfactant strongly depends on the dynamic adsorption behavior of surfactant on bubble surfaces, and the highest foam fractionation performance was achieved when the surfactant molecule was highly hydrophobic. This work demonstrates that the adsorption dynamics rather than adsorption thermodynamics on bubble surfaces is critical when modeling the removal of surfactant micropollutants from water solutions.
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Affiliation(s)
- Arturo A. García-Figueroa
- Laboratorio
de Superficies, Departamento de Fisicoquímica, Facultad de
Química, Universidad Nacional Autónoma
de México, Ciudad
de México 04510, México
| | - Boris Albijanic
- Western
Australian School of Mines: Minerals, Energy, and Chemical Engineering, Curtin University, Kalgoorlie, WA 6430, Australia
| | - Mitzi A. Zarazua-Escobar
- Laboratorio
de Superficies, Departamento de Fisicoquímica, Facultad de
Química, Universidad Nacional Autónoma
de México, Ciudad
de México 04510, México
| | - Jose L. Lopez-Cervantes
- Laboratorio
de Superficies, Departamento de Fisicoquímica, Facultad de
Química, Universidad Nacional Autónoma
de México, Ciudad
de México 04510, México
| | - Jesús Gracia-Fadrique
- Laboratorio
de Superficies, Departamento de Fisicoquímica, Facultad de
Química, Universidad Nacional Autónoma
de México, Ciudad
de México 04510, México
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Buckley T, Karanam K, Han H, Vo HNP, Shukla P, Firouzi M, Rudolph V. Effect of different co-foaming agents on PFAS removal from the environment by foam fractionation. WATER RESEARCH 2023; 230:119532. [PMID: 36584659 DOI: 10.1016/j.watres.2022.119532] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/09/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Per- and poly-fluoroalkyl substances (PFAS) are recalcitrant, synthetic chemicals that are ubiquitous in the environment because of their widespread use in a variety of consumer and industrial products. PFAS contamination has become an increasing issue in recent years, which needs to be urgently addressed. Foam fractionation is emerging as a potential remediation option that removes PFAS by adsorption to the surface of rising air bubbles which are removed from the system as a foam. PFAS concentrations in the environment are often not sufficient to allow for formation of a foam by itself and often a co-foaming agent is required to be added to enhance the foamability of the solution. In this study, the effect of different classes of co-foaming agents, anionic, non-ionic, zwitterionic and cationic surfactants on the removal of PFAS with varying fluorocarbon chain length from 3 to 8 in a foam fractionation process have been investigated. Evaluation of the air-water interface partitioning coefficient (k') in addition with surface tension and PFAS removal results support the contention that using a co-foaming agent with the opposite charge to the PFAS in question significantly facilitates the adsorption of PFAS to the air-water interface, enhancing the efficiency of the process. Using the non-ionic surfactant (no headgroup electrostatic interaction with PFAS), as a reference, it was observed, in terms of PFAS separation and rate of PFAS removal, that anionic co-surfactant performed worst, zwitterionic was better, and cationic co-surfactant performed best. All of the PFAS species were able to be removed below the limit of detection (0.05 µg/L) after 45 minutes of foaming time with the cationic surfactant.
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Affiliation(s)
- Thomas Buckley
- School of Chemical Engineering, The University of Queensland, Brisbane 4067, Australia.
| | - Kavitha Karanam
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane 4067, Australia
| | - Han Han
- School of Chemical Engineering, The University of Queensland, Brisbane 4067, Australia
| | - Hoang Nhat Phong Vo
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane 4067, Australia
| | - Pradeep Shukla
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane 4067, Australia
| | - Mahshid Firouzi
- Newcastle Institute for Energy and Resources, The University of Newcastle, Newcastle 2308, Australia
| | - Victor Rudolph
- School of Chemical Engineering, The University of Queensland, Brisbane 4067, Australia
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Fang S, Huang W, Wu J, Han J, Wang L, Wang Y. Separation and Purification of Recombinant β-Glucosidase with Hydrophobicity and Thermally Responsive Property from Cell Lysis Solution by Foam Separation and Further Purification. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:3362-3372. [PMID: 36749912 DOI: 10.1021/acs.jafc.2c07405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The aim of this study was to separate and purify recombinant β-glucosidase (GLEGB) with elastin-like polypeptide (ELP) and graphene-binding peptide (GB) from cell lysis solution by foam separation and further purification. The study of foam property of GLEGB cell lysis solution indicated that it had excellent foaming property and foam stability, which was suitable for foam separation. This could be due to the GB tag with hydrophobicity, which made the recombinant β-glucosidase with GB preferentially adsorb on the surface of bubbles. At optimum operating conditions of foam separation, the enzyme activity recovery of GLEGB could reach 95.63 ± 1.0%. The foam solution of GLEGB was further purified based on the thermally responsive property of the ELP tag, and the purification fold of GLEGB could reach 29.6 ± 0.5 at the optimum operating conditions. The prominent purification effect indicates that this technique is a simple and efficient technique for the separation and purification of recombinant enzymes.
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Affiliation(s)
- Sihan Fang
- College of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wenrui Huang
- College of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiacong Wu
- College of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Juan Han
- College of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Lei Wang
- College of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yun Wang
- College of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
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MARUYAMA H, SEKI H. Enhancement of metal ion fractionation by adding alginate in batch foam separation. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Matsuoka K, Asamoto D. Preferential Removal of Alkali Metal Using Dodecanoic Acid and Sodium Dodecyl Sulfate in Foam Separation System. J Oleo Sci 2023; 72:543-548. [PMID: 37121679 DOI: 10.5650/jos.ess22422] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
The selectivity of adsorption between alkali metal ions (Li+, Na+, K+, Rb+, and Cs+) based on the ionic functional groups of the surfactants was studied using two types of surfactants, dodecanoic acid (DA) and sodium dodecyl sulfate (SDS), in the foam separation system. The results showed that Li+ was preferably removed by foam separation using DA. The removal rates of other alkali metal ions were relatively low, and there were no significant differences among other alkali metal ions (Na+, K+, Rb+, and Cs+). However, Cs+ exhibited the highest removal rate among the mixed alkali metals by foam separation using SDS. From these results, the selectivity of the alkali metal in foam separation was dependent on the type of surfactant.
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Affiliation(s)
- Keisuke Matsuoka
- Faculty of Education, Laboratory of Chemistry, Saitama University
| | - Daichi Asamoto
- Faculty of Education, Laboratory of Chemistry, Saitama University
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Chen C, Li G, Dai L, Zhao H, Li N, Mi W, Yin S, Wang S, Zhang J. Simultaneous separation of glycyrrhizic acid, baicalein and wogonin from Radix Glycyrrhizae and Radix Scutellariae using foam fractionation and in vitro activity evaluation. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:5200-5209. [PMID: 35289954 DOI: 10.1002/jsfa.11872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 09/08/2021] [Accepted: 03/15/2022] [Indexed: 05/13/2023]
Abstract
BACKGROUND In this study, the optimal conditions for the extraction and purification of glycyrrhizic acid from Radix Glycyrrhizae (RG) and baicalein and wogonin from Radix Scutellariae (RS) by foam fractionation were studied on the basis of central composite design (CCD) and response surface methodology. RESULTS The results showed that herbal proportion (RG:RS), gas flow and ethanol concentration were the main factors guiding the foam fractionation of RG and RS. The optimum technological parameters were obtained as follows: herbal proportion (RG:RS), 1.86:1.14; gas flow, 109 mL min-1 ; and ethanol concentration, 53%. Under the optimal operating conditions, the maximal extraction yields of baicalein, glycyrrhizic acid and wogonin were 56.67, 13.25 and 9.51 mg g-1 , respectively, which were 2.32-, 1.22- and 1.84-fold higher than those of ultrasonic extraction and 17.28-, 1.15- and 9.91-fold higher than those of ultrasonic extraction without hydrolysis, respectively. Investigations on the antioxidant activity showed that the foam-fractionated extract exhibited better free radical scavenging activity (IC50 13.80 μg mL-1 ) than that of the ultrasonic extract (IC50 223.00 μg mL-1 ). Antibacterial activity showed that the minimum inhibitory concentrations of the foam fractionated extract against Staphylococcus aureus, Candida albicans, Group A Streptococcus and Pseudomonas aeruginosa were 1.38, 1.38, 0.69 and 5.50 mg mL-1 , respectively. CONCLUSION The results indicate that the foam fractionated extract exhibited better extraction yields and free radical scavenging activity than did the ultrasonic extract. Therefore, this fast and eco-friendly method was established and could be a basis for the extraction and separation of other active constituents from herbal medicines. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Caiyun Chen
- School of Public Health and Management, Binzhou Medical University, Yantai, China
| | - Gaotian Li
- School of Pharmaceutical Science, Binzhou Medical University, Yantai, China
| | - Long Dai
- School of Pharmaceutical Science, Binzhou Medical University, Yantai, China
| | - Huijuan Zhao
- School of Public Health and Management, Binzhou Medical University, Yantai, China
| | - Ning Li
- School of Public Health and Management, Binzhou Medical University, Yantai, China
| | - Wei Mi
- School of Public Health and Management, Binzhou Medical University, Yantai, China
| | - Shuying Yin
- School of Public Health and Management, Binzhou Medical University, Yantai, China
| | - Shaoping Wang
- School of Pharmaceutical Science, Binzhou Medical University, Yantai, China
| | - Jiayu Zhang
- School of Pharmaceutical Science, Binzhou Medical University, Yantai, China
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9
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Jiang Z, Yu H, Zhuo X, Bai X, Shen J, Zhang H. Efficient treatment of aged landfill leachate containing high ammonia nitrogen concentration using dynamic wave stripping: Insights into influencing factors and kinetic mechanism. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 150:48-56. [PMID: 35803156 DOI: 10.1016/j.wasman.2022.06.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 06/17/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Aged landfill leachate is challenging to treat owing to its extremely high ammonia concentration and poor biodegradability. We constructed pilot-scale dynamic wave stripping equipment to separate ammonia from landfill leachate and achieved excellent results. To further expand the usage of pilot-scale equipment in actual water treatment process and implement it in a sewage plant, we established the mass transfer kinetic physics and mathematical model of the dynamic wave stripping process based on the surface renewal theory and the traditional stripping method. The surface renewal theory and the traditional stripping method are employed to analyze the mechanism of various experimental parameters affecting the stripping process, predict the stripping effect of the equipment under different conditions, and verify the calculation results of the model using the kinetic fitting results of the experimental data. These calculation results of the model indicate that the mass transfer kinetic coefficients of ammonia stripping at 20 °C, 25 °C, and 30 °C are 85.62 min, 75.34 min, and 65.88 min, respectively, when the gas-liquid ratio is 129. When the gas-liquid ratios are 62, 129, and 163 at 25 °C, the mass transfer kinetic coefficients of ammonia stripping are 102.61 min, 75.34 min, and 61.43 min, respectively. With increasing temperature and gas-liquid ratio, the particle size and number of bubbles in the wave tube of the stripping equipment gradually decrease and the mass transfer efficiency of free ammonia between the gas and liquid phases improves, enhancing the stripping efficiency of ammonia nitrogen.
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Affiliation(s)
- Zhuwu Jiang
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian 350118, China.
| | - Hai Yu
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Xiong Zhuo
- Fuzhou City Construction Design & Research Institute Co., Ltd., 350000, China
| | - Xue Bai
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Jyunhong Shen
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Hongyu Zhang
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian 350118, China.
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Anthony ET, Oladoja NA. Process enhancing strategies for the reduction of Cr(VI) to Cr(III) via photocatalytic pathway. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:8026-8053. [PMID: 34837612 DOI: 10.1007/s11356-021-17614-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
This discourse aimed at providing insight into the strategies that can be adopted to boost the process of photoreduction of Cr(VI) to Cr(III). Cr(VI) is amongst the highly detestable pollutants; thus, its removal or reduction to an innocuous and more tolerable Cr(III) has been the focus. The high promise of photocatalysis hinged on the sustainability, low cost, simplicity, and zero sludge generation. Consequently, the present dissertation provided a comprehensive review of the process enhancement procedures that have been reported for the photoreduction of Cr(VI) to Cr(III). Premised on the findings from experimental studies on Cr(VI) reductions, the factors that enhanced the process were identified, dilated, and interrogated. While the salient reaction conditions for the process optimization include the degree of ionization of reacting medium, available photogenerated electrons, reactor ambience, type of semiconductors, surface area of semiconductor, hole scavengers, quantum efficiency, and competing reactions, the relevant process variables are photocatalyst dosage, initial Cr(VI) concentration, interfering ion, and organic load. In addition, the practicability of photoreduction of Cr(VI) to Cr(III) was explored according to the potential for photocatalyst recovery, reactivation, and reuse reaction conditions and the process variables.
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Affiliation(s)
- Eric Tobechukwu Anthony
- Hydrochemistry Research Laboratory, Department of Chemical Sciences, Adekunle Ajasin University, Akungba Akoko, Nigeria
| | - Nurudeen Abiola Oladoja
- Hydrochemistry Research Laboratory, Department of Chemical Sciences, Adekunle Ajasin University, Akungba Akoko, Nigeria.
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11
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Hou H, Li S, Meng Z, Li Z, Darwesh OM, Zheng H. Removal of Cu ions in wastewater through a combined foam separation–cell adsorption approach. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hongya Hou
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - SiYu Li
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - ZhiChao Meng
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - Zhiqiang Li
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - Osama M. Darwesh
- Department of Agricultural Microbiology National Research Centre Cairo 12622 Egypt
| | - Huijie Zheng
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
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12
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Bojdi MK, Behbahani M, Feyzabadi ZB. Material Design of a Chromium Imprinted Polymer and its Application as a Highly Selective Electrochemical Sensor for Determining Chromium Ion at Trace Levels. ChemistrySelect 2021. [DOI: 10.1002/slct.202102866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Majid Kalate Bojdi
- Department of Chemistry Faculty of Science University of Birjand Birjand South Khorasan Iran
| | - Mohammad Behbahani
- Department of Chemistry Faculty of Science Shahid Chamran University of Ahvaz Ahvaz Iran
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13
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Gu Q, Xue X, Darwesh OM, Habimana P, Liu W, Wu Z, Li Z. Random Packing Performance in Continuous Foam Fractionation. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qianfeng Gu
- Hebei University of Technology School of Chemical Engineering and Technology 300130 Tianjin China
| | - Xiaochen Xue
- Hebei University of Technology School of Chemical Engineering and Technology 300130 Tianjin China
| | - Osama M. Darwesh
- National Research Centre Department of Agricultural Microbiology 12622 Cairo Egypt
| | - Pascal Habimana
- Hebei University of Technology School of Chemical Engineering and Technology 300130 Tianjin China
| | - Wei Liu
- Hebei University of Technology School of Chemical Engineering and Technology 300130 Tianjin China
| | - Zhaoliang Wu
- Hebei University of Technology School of Chemical Engineering and Technology 300130 Tianjin China
| | - Zhiqiang Li
- Hebei University of Technology School of Chemical Engineering and Technology 300130 Tianjin China
- Hebei University of Technology National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization 300130 Tianjin China
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14
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Jiao S, Deng L, Zhang X, Zhang Y, Liu K, Li S, Wang L, Ma D. Evaluation of an Ionic Porous Organic Polymer for Water Remediation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39404-39413. [PMID: 34387083 DOI: 10.1021/acsami.1c10464] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The targeted synthesis of a novel ionic porous organic polymer (iPOP) was reported. The compound (denoted as QUST-iPOP-1) was built up through a quaternization reaction of tris(4-imidazolylphenyl)amine and cyanuric chloride, and then benzyl bromide was added to complete the quaternization of the total imidazolyl units. It featured a special exchangeable Cl-/Br--rich structure with high permanent porosity and wide pore size distribution, enabling it to rapidly and effectively remove environmentally toxic oxo-anions including Cr2O72-, MnO4-, and ReO4- and anionic organic dyes with different sizes including methyl blue, Congo red, and methyl orange from water. Notably, QUST-iPOP-1 showed ultra-high capacity values for radioactive TcO4- surrogate anions (MnO4- and ReO4-), Cr2O72-, methyl blue, and Congo red, and these were comparable to some reported compounds of exhaustive research. Furthermore, the relative removal rate was high even when other concurrent anions existed.
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Affiliation(s)
- Shaoshao Jiao
- Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Liming Deng
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Xinghao Zhang
- Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yaowen Zhang
- Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Kang Liu
- Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Shaoxiang Li
- Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Lei Wang
- Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
- Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Dingxuan Ma
- Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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15
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Jia L, Liu W, Cao J, Wu Z, Yang C. Foam fractionation for effective removal of Pseudomonas aeruginosa from water body: Strengthening foam drainage by artificially inducing foam evolution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 291:112628. [PMID: 33932836 DOI: 10.1016/j.jenvman.2021.112628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/22/2021] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
Lack of microbial contamination is of great significance to drinking water safety and water reclamation. In this work, foam fractionation was employed to remove Pseudomonas aeruginosa (P. aeruginosa) from aqueous solution and dodecyl dimethyl betaine (BS12) was used as the collector. Since the attachment of strain cells on the bubble surface would impede the reflux of interstitial liquid in the plateau borders (PBs), a novel strategy in strengthening foam drainage was developed through artificially inducing foam evolution. Two gas distributors with different pore diameters had been mounted at the bottom of the column for regulating the radial distribution of bubble size in the foam phase. Experimental results indicated that gas diffuse and bubble coarsening could be significantly promoted by increasing the size difference among the adjacent bubbles. Bubble coalescence contributed to broadening the width of plateau borders, thereby avoiding the borders blockage by strain cells. During bubble coalescence, surfactant molecules would be partially shifted from the surface of small bubble towards that of large bubble due to the molecule density difference. The increase in surface excess of surfactant molecules on gas-liquid interface was conducive to improving foam stability. Under the suitable conditions of air flow rates of gas distributor with 0.125 mm of pore diameter 75 mL/min and gas distributor with 0.425 mm of pore diameter 125 mL/min, BS12 concentration 0.1 g/L, and P. aeruginosa concentration 2.0 × 104 CFU/mL, the removal percentage and enrichment ratio of P. aeruginosa were 99.6% and 10.6, respectively. This work is expected to provide some new light for strengthening foam drainage in the presence of solid particles and to facilitate the industrialization of foam fractionation in water treatment.
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Affiliation(s)
- Lei Jia
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
| | - Wei Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China.
| | - Jilin Cao
- State Key Laboratory of Green Chemical Engineering and Efficient Energy Saving, School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China.
| | - Zhaoliang Wu
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
| | - Chunyan Yang
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
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16
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Buckley T, Xu X, Rudolph V, Firouzi M, Shukla P. Review of foam fractionation as a water treatment technology. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1946698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Thomas Buckley
- School of Chemical Engineering, The University of Queensland, Brisbane, Australia
| | - Xiaoyong Xu
- School of Chemical Engineering, The University of Queensland, Brisbane, Australia
| | - Victor Rudolph
- School of Chemical Engineering, The University of Queensland, Brisbane, Australia
| | - Mahshid Firouzi
- School of Chemical Engineering, The University of Queensland, Brisbane, Australia
| | - Pradeep Shukla
- School of Chemical Engineering, The University of Queensland, Brisbane, Australia
- Queensland Alliance of Environmental Health Sciences, The University of Queensland, Brisbane, Australia
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17
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Bakhshi M, Mortaheb HR, Amini MH. Removal of Trace Metal Impurities from Pretreated Phosphoric Acid by Foam Fractionation. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marzieh Bakhshi
- Chemistry and Chemical Engineering Research Center of Iran P.O. Box: 14335‐186 Tehran Iran
| | - Hamid Reza Mortaheb
- Chemistry and Chemical Engineering Research Center of Iran P.O. Box: 14335‐186 Tehran Iran
| | - Mohammad Hassan Amini
- Chemistry and Chemical Engineering Research Center of Iran P.O. Box: 14335‐186 Tehran Iran
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18
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Improvement of nisin production by using the integration strategy of co-cultivation fermentation, foam fractionation and pervaporation. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Liu W, Liu D, Yin H, Yang C, Lu K. Foam fractionation for the separation of SDBS from its aqueous solution: Process optimization and property test. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118305] [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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20
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Zhang B, Xu X, Lu H, Wang L, Yang Q. Removal of phoxim, chlorothalonil and Cr3+ from vegetable using bubble flow. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110217] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Wu H, Huang Y, Liu B, Han G, Su S, Wang W, Yang S, Xue Y, Li S. An efficient separation for metal-ions from wastewater by ion precipitate flotation: Probing formation and growth evolution of metal-reagent flocs. CHEMOSPHERE 2021; 263:128363. [PMID: 33297278 DOI: 10.1016/j.chemosphere.2020.128363] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 06/12/2023]
Abstract
Hazardous metal pollution became a severe environmental issue in China. An efficient precipitation-flotation process was developed to achieve fast removal for metal-ions from wastewater. Structure and strength of precipitate particles/flocs significantly influence the flotation removal of metal-ions. Formation and growth-evolution of precipitate flocs in precipitate flotation were studied by stage analysis of precipitate particles-formation, flocs-regulation and flotation separation. The results demonstrate that early formed precipitates MHA(humics-metal complexing particles) have small particle size, high fractal dimension, low strength and recovery factor. The addition of Fe3+ and CTAB(cetyl trimethyl ammonium bromide) reagents make the precipitate particles aggregated to flocs(MHA-Fe, MHA-Fe-CTAB) much more large, loose, coarse, and small-density. The final generated MHA-Fe-CTAB flocs are hard to be broken up, easy to be recovered and efficient to be separated by flotation process. The flotation removal of MHA-Fe-CTAB flocs is clearly higher than that of MHA or MHA-Fe. The flotation results of MHA-Fe-CTAB are as follows: flotation removal of 98.7 ± 0.40%-99.9 ± 0.10%, residual TOC of 0.96 ± 0.38-1.35 ± 0.41 mg/L and turbidity of 0.44 ± 0.09-0.63 ± 0.16 NTU. Introducing Fe3+ and CTAB reagents into flotation solution contributes to the growth-evolution of precipitate flocs, which could intensify the metal-ions removal via precipitate flotation process and result in more ideal purification indexes for metal-containing wastewater.
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Affiliation(s)
- Hongyang Wu
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China; School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, 471000, Luoyang, PR China
| | - Yanfang Huang
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China
| | - Bingbing Liu
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China
| | - Guihong Han
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China.
| | - Shengpeng Su
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China
| | - Wenjuan Wang
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China
| | - Shuzhen Yang
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China
| | - Yubin Xue
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China
| | - Shuangqing Li
- School of Chemical Engineering, Zhengzhou University, 450001, Zhengzhou, PR China
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22
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Zhang Y, Sun X, Bian W, Peng J, Wan H, Zhao J. The key role of persistent free radicals on the surface of hydrochar and pyrocarbon in the removal of heavy metal-organic combined pollutants. BIORESOURCE TECHNOLOGY 2020; 318:124046. [PMID: 32889124 DOI: 10.1016/j.biortech.2020.124046] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/15/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
We show that persistent free radicals (PFRs) on the surface of biochar can produce hydroxyl radicals (•OH) by catalyzing H2O2 to facilitate the removal of the combined pollutant BPA-Cr(VI). Microstructure characterization showed that the structures of pyrocarbon and hydrochar were significantly different when prepared at different temperatures. As the preparation temperature and preparation time for biochar increased, the concentration of PFRs first increased and then decreased. When biochar, PFRs, and H2O2 were present in the same solution, the single pollutants BPA and Cr(VI) as well as the combined pollutant BPA-Cr(VI) could be removed effectively, with removal rates greater than 90%. However, when PFRs, BPA, H2O2, and Cr(VI) were present in the same solution, Cr(VI) competed with H2O2 for electrons and promoted the removal of BPA. The results of this study could be applied to sludge recycling and be used to develop approaches to catalytically degrade combined pollutants.
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Affiliation(s)
- Yanzhuo Zhang
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Xinxiang, Henan 453007, PR China.
| | - Xuedi Sun
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Xinxiang, Henan 453007, PR China
| | - Wei Bian
- China Shenhua Energy Co., LTD, Science and Technology Information Department. Beijing 100011, PR China
| | - Jianbiao Peng
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Xinxiang, Henan 453007, PR China
| | - Huilin Wan
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Xinxiang, Henan 453007, PR China
| | - Jing Zhao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
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23
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Yang Y, Meng J, Lei L, Huang D, Liu C, Gu D, Ito Y. Different behavior of bovine serum albumin as foaming agent in foam enrichment of Rhodamine 6G and Evans blue. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Yao Y, Mi N, He C, Zhang Y, Yin L, Li J, Wang W, Yang S, He H, Li S, Ni L. A novel colloid composited with polyacrylate and nano ferrous sulfide and its efficiency and mechanism of removal of Cr(VI) from Water. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123082. [PMID: 32534398 DOI: 10.1016/j.jhazmat.2020.123082] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/01/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Nano ferrous sulfide (n-FeS) colloids show an excellent performance in the application of remediation in situ soil and groundwater. However, due to the interfacial effect and high reactivity of the nano sized FeS, n-FeS easy to agglomerate, which reduces their remediation efficiency. In this study, a novel composite colloid was synthesized using polyacrylic acid salt (PAA) and n-FeS. The PAA-n-FeS colloid was used to remove Cr(VI) in water remediation, and its removal mechanism and efficiency were explored. The results showed that the hydrodynamic diameter of PAA-n-FeS ranged from 65.04-90.09 nm and the zeta potential was from -27 to -54 mV at pH varying from 4.5-9.0. PAA was coated on the surface of n-FeS, which improved the dispersibility and stability of n-FeS by increasing the steric hindrance and electrostatic repulsion between n-FeS particles. Moreover, the Cr(VI) maximum removal amount PAA-n-FeS was 432.79 mg/g, which was significantly higher than that of n-FeS (218.29 mg/g) and PAA (12.32 mg/g). The mechanism of PAA-n-FeS removal of Cr(VI) was mainly derived from its own reducibility. The reaction products were mainly Cr(OH)3, Cr(III)-Fe(III), Cr2O3, and Cr2S3. This research not only finds a new stabilizer for preventing n-FeS agglomeration, but also provides a novel n-FeS composited colloid for promoting the practical application to Cr(VI) removal from water.
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Affiliation(s)
- Youru Yao
- School of Environment, Nanjing Normal University, Nanjing, 210023, China.
| | - Na Mi
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Cheng He
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200082, China
| | - Yong Zhang
- Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA
| | - Li Yin
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Jing Li
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Wei Wang
- Nanjing Institute of Environmental Science, Ministry of Ecological Environment, Nanjing, 210042, China
| | - Shaogui Yang
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Huan He
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Shiyin Li
- School of Environment, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China.
| | - Lixiao Ni
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, MOE, School of Environment, Hohai University, Nanjing, 210098, China.
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25
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Foam separation for effective removal of disperse and reactive dyes from aqueous solutions. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116985] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Goto Y, Nema Y, Matsuoka K. Foam Separation of Dyes Using Anionic, Cationic, and Amphoteric Surfactants. J Oleo Sci 2020; 69:549-555. [PMID: 32522916 DOI: 10.5650/jos.ess20004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Foam separation can selectively remove a target substance from a solution via adsorption of the substance with the surfactant at the surface of the bubble. A cationic dye, methylene blue, and an anionic dye, Fast Green FCF, were prepared as substances to be removed via foam separation. Anionic (sodium dodecyl sulfate, SDS), cationic (dodecyltrimethylammonium chloride, DTAC), and amphoteric (3-(dodecyldimethylammonio)propane-1-sulfonate, SB-12) surfactants were used in the foam separation process. The effectiveness of the surfactants for removing the cationic methylene blue increased as follows: DTAC < SB-12 < SDS. On the other hand, the effectiveness of the surfactants for removing the anionic Fast Green FCF was in the opposite order. The dyes were effectively adsorbed by the foams via electrostatic interactions between the oppositely charged surfactant and the dye molecules. Since amphoteric surfactants have both anionic and cationic charges in a molecule, they could effectively remove both dyes in the foam separation process. Therefore, it was found that the amphoteric surfactant was highly versatile. Analysis of the kinetics of the removal rate showed that the aqueous solutions of monomers could remove the dyes more effectively than micellar solutions in foam separation.
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Affiliation(s)
- Yusuke Goto
- Faculty of Education, Laboratory of Chemistry, Saitama University
| | - Yuya Nema
- Faculty of Education, Laboratory of Chemistry, Saitama University
| | - Keisuke Matsuoka
- Faculty of Education, Laboratory of Chemistry, Saitama University
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27
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Hoseinian FS, Rezai B, Kowsari E, Chinnappan A, Ramakrishna S. Synthesis and characterization of a novel nanocollector for the removal of nickel ions from synthetic wastewater using ion flotation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116639] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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28
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Jia L, Liu W, Cao J, Wu Z, Yang C. Modified multi-walled carbon nanotubes assisted foam fractionation for effective removal of acid orange 7 from the dyestuff wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 262:110260. [PMID: 32090883 DOI: 10.1016/j.jenvman.2020.110260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
In this study, multi-walled carbon nanotubes (MWCNTs) had been used to strengthen the removal of acid orange 7 (AO7) from the dyestuff wastewater by using foam fractionation. First, the surface modification of MWCNTs was performed by introducing hypochlorite groups (-OCl). The modified MWCNTs were characterized by using SEM, XRD, FTIR and Raman spectroscopy. Subsequently, the potential of modified MWCNTs as a novel collector for AO7 adsorption was examined. The adsorption conditions of modified MWCNTs towards AO7 were optimized by using response surface methodology (RSM) with a central composite design (CCD). The adsorption capacity of modified MWCNTs towards AO7 could reach 47.72 ± 0.79 mg·g-1 under the optimum conditions. The kinetics and the equilibrium adsorption data were analyzed by using different kinetic and isotherm models. According to the regression results, adsorption kinetics data were well described by pseudo-second order model, whereas adsorption isotherm data were best represented by Langmuir isotherm model. Finally, foam fractionation was performed with a batch mode. Under the suitable conditions of loading liquid volume 300 mL, modified MWCNTs dosage 180 mg, cetyltrimethylammonium bromide (CTAB) concentration 50 mg·L-1, AO7 concentration 30 mg·L-1, pore diameter of gas distributor 0.125 mm and air flow rate 100 mL·min-1, the removal percentage and enrichment ratio of AO7 were 91.23% and 6.17, respectively. The decolourization ratio of solution after foam fractionation was found to be 98.66%.
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Affiliation(s)
- Lei Jia
- School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
| | - Wei Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China.
| | - Jilin Cao
- State Key Laboratory of Green Chemical Engineering and Efficient Energy Saving, School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China.
| | - Zhaoliang Wu
- School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
| | - Chunyan Yang
- School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
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29
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Lu J, Liu Z, Wu Z, Liu W, Yang C. Synergistic effects of binary surfactant mixtures in the removal of Cr(VI) from its aqueous solution by foam fractionation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116346] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Ifthikar J, Chen Z, Chen Z, Jawad A. A self-gating proton-coupled electron transfer reduction of hexavalent chromium by core-shell SBA-Dithiocarbamate chitosan composite. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121257. [PMID: 31585284 DOI: 10.1016/j.jhazmat.2019.121257] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/02/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
We have proposed a novel strategy for the reduction plus adsorption process for hexavalent chromium elimination by thiol functional hybrid materials through a self-gating process. Namely, we exploit that coating dithiocarbamate chitosan at the surface of SBA-15 affords a core-shell composite that undergoes reversible shape transformations while thiol functional groups acted as proton-coupled electron donor for [Cr2O7]2-. The reduction of [Cr2O7]2- to Cr3+ was highly efficient and exceptionally rapid, occurred within 5 min with the reduction amount of 899.66 mg of [Cr2O7]2- / 1 g of nanocomposite as a record high value. During the reduction of [Cr2O7]2-, thiol functional groups (-SH) were oxidized into disulfide linkages (SS), and simultaneously chitosan matrix turned into shrunken structure because of the consuming of protons, preventing any release of Cr3+. Disulfides can also be reversely reduced to thiols by thiosulphates (S2O32-), which was attractive for regeneration and recyclability of the nanocomposite. Moreover, the [Cr2O7]2- elimination through self-gating process was highly selective against a huge concentration of background electrolytes. This alternative strategy ensures the outstanding and stable performance in applied fields, and could be conducted in various pollution control techniques like permeable reactive barriers.
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Affiliation(s)
- Jerosha Ifthikar
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhuqi Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Zhulei Chen
- Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Ali Jawad
- Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
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31
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Zhou G, Zhang H, Yang W, Wu Z, Liu W, Yang C. Bioleaching assisted foam fractionation for recovery of gold from the printed circuit boards of discarded cellphone. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 101:200-209. [PMID: 31622865 DOI: 10.1016/j.wasman.2019.10.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/01/2019] [Accepted: 10/07/2019] [Indexed: 05/20/2023]
Abstract
Present work was focused on recovering gold (Au) from the printed circuit boards (PCBs) of discarded cellphone by bioleaching assisted continuous foam fractionation. First, the cyanide-producing strains of Pseudomonas putida and Bacillus megaterium were co-cultured in order to supply a high cyanide concentration in the nutrient solution for mobilizing Au from waste PCBs (WPCBs). Bioleaching conditions were optimized by using response surface methodology. Under the suitable bioleaching conditions of pH of 10.0, pulp density of 5 g/L and leaching time of 34 h, the Au mobilization percentage was 83.59%. The leaching liquor with an Au concentration of 1.34 mg/L could be used as the feeding solution of continuous foam fractionation after removing solid particles and cell biomass. In order to strengthen foam drainage, a novel internal component of foam fractionation column was developed. Under the suitable operation conditions of CTAB concentration of 0.2 g/L, volumetric air flow rate of 100 mL/min and feed flow rate of 10 mL/min, the enrichment ratio and recovery percentage of Au were 43.62 and 87.46%, respectively. This study is expected to provide an effective strategy to recover Au from WPCBs, and to supplement the depleting natural resources.
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Affiliation(s)
- Gang Zhou
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin 300130, China
| | - Huixin Zhang
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin 300130, China
| | - Wei Yang
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin 300130, China
| | - Zhaoliang Wu
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin 300130, China
| | - Wei Liu
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, No.8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin 300130, China.
| | - Chunyan Yang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China.
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32
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Matsuoka K, Hasegawa S, Yuma T, Goto Y. Application of foam separation method for removal of alkaline earth metal ions from solution. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111663] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Ghosh R, Hareendran H, Subramaniam P. Adsorption of Fluoroquinolone Antibiotics at the Gas-Liquid Interface Using Ionic Surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12839-12850. [PMID: 31495173 DOI: 10.1021/acs.langmuir.9b02431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The overuse of antibiotics in today's society has resulted in high concentrations of pharmaceutical contaminants in the natural environment. In this work, we investigated the surfactant-mediated adsorption of fluoroquinolone (FQ) antibiotics at the gas-liquid interface and their separation using a semi-batch foam fractionation process. FQs being a zwitterionic compound have an affinity to bind with both cationic and anionic surfactants. The adsorption of FQs to the gas-liquid interface was investigated using a cationic cetyltrimethylammonium bromide (CTAB) and anionic sodium dodecyl sulfate (SDS) surfactant. Ciprofloxacin (CF) was chosen as a model FQ antibiotic. The adsorption properties of the surfactant systems and CF were characterized using pendant-drop tensiometry and surface excess analysis. It was found that CF partitions to the gas-liquid interface more readily in the presence of SDS compared to CTAB. This was also corroborated in the foam fractionation experiments. At optimum operating conditions, CF showed a higher removal efficiency with SDS (96.3%) compared to CTAB (52%). In spite of strong molecular interactions between CTAB and CF, the preferential adsorption of DS--CF complexes was far greater than CTA+-CF complexes. At optimized operating conditions, using SDS as the surfactant, other FQs such as norfloxacin, levofloxacin, and ofloxacin were recovered up to 97.9, 91.7, and 96.7%, respectively, with effluent concentration less than 100 nM. Overall, the work demonstrates foam fractionation as a novel and environment-friendly gas-liquid separation technique for the targeted removal of FQ antibiotics from waterbodies.
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Affiliation(s)
- Rajesh Ghosh
- Department of Chemical Engineering , Indian Institute of Technology Madras , Chennai 600036 , India
| | - Haritha Hareendran
- Department of Chemical Engineering, Alagappa College of Technology , Anna University , Chennai 600025 , India
| | - Pushpavanam Subramaniam
- Department of Chemical Engineering , Indian Institute of Technology Madras , Chennai 600036 , India
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Separation of Protein-Binding Anthraquinones from Semen Cassiae Using Two-Stage Foam Fractionation. Processes (Basel) 2019. [DOI: 10.3390/pr7070463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Anthraquinones are compounds of high medicinal value in many plants. Based on their good protein binding affinity, foam fractionation was attempted to separate them using proteins in the aqueous extract of Semen Cassiae as collectors. Firstly, the interaction between anthraquinones and Semen Cassiae proteins has been analyzed by the Stem–Volmer equation with physcion as a standard. The results show that physcion had good interaction with the proteins via hydrophobic forces. More importantly, the proteins effectively assisted the foam fractionation of several anthraquinones including aurantio-obtusifolin, aloe-emodin, rhein, emodin, chrysophanol, and physcion. On this basis, a two-stage foam fractionation technology was developed for process intensification using a foam fractionation with vertical sieve trays (VSTs). VSTs, initial feed concentration of total anthraquinones, temperature, volumetric air flow rate and pore diameter of gas distributor had significant effects on enrichment ratio and recovery yield of anthraquinones. Under suitable conditions, the enrichment ratio of total anthraquinones reached 47.0 ± 4.5 with a concentration of 939 ± 94 mg/L in the foamate while their total recovery percentage reached more than 47.7%. In addition, foam fractionation also increased the purity and hydroxyl radical scavenging activity of total anthraquinones. The results had significant implications for the separation of anthraquinones from Semen Cassiae.
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