Pub Date : 2024-02-09DOI: 10.1080/01496395.2024.2315617
H. A. Taner, Vildan Onen
{"title":"Environmentally friendly alternative depressants in chalcopyrite flotation","authors":"H. A. Taner, Vildan Onen","doi":"10.1080/01496395.2024.2315617","DOIUrl":"https://doi.org/10.1080/01496395.2024.2315617","url":null,"abstract":"","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139788439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-09DOI: 10.1080/01496395.2024.2315606
Xingyu Ai, Xiaolei Cai, Huihui Han, G. Ding, Shun Guan
{"title":"Numerical simulation of the separation characteristics of oil droplets in swirling flotation based on CFD-PBM","authors":"Xingyu Ai, Xiaolei Cai, Huihui Han, G. Ding, Shun Guan","doi":"10.1080/01496395.2024.2315606","DOIUrl":"https://doi.org/10.1080/01496395.2024.2315606","url":null,"abstract":"","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139848153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-09DOI: 10.1080/01496395.2024.2315606
Xingyu Ai, Xiaolei Cai, Huihui Han, G. Ding, Shun Guan
{"title":"Numerical simulation of the separation characteristics of oil droplets in swirling flotation based on CFD-PBM","authors":"Xingyu Ai, Xiaolei Cai, Huihui Han, G. Ding, Shun Guan","doi":"10.1080/01496395.2024.2315606","DOIUrl":"https://doi.org/10.1080/01496395.2024.2315606","url":null,"abstract":"","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139788097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-09DOI: 10.1080/01496395.2024.2315605
Fatih Turan, Sezai Sen, Gül Akar Sen
{"title":"Lead removal from natural zeolite through optimized HCl leaching using response surface methodology","authors":"Fatih Turan, Sezai Sen, Gül Akar Sen","doi":"10.1080/01496395.2024.2315605","DOIUrl":"https://doi.org/10.1080/01496395.2024.2315605","url":null,"abstract":"","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139788267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-09DOI: 10.1080/01496395.2024.2315605
Fatih Turan, Sezai Sen, Gül Akar Sen
{"title":"Lead removal from natural zeolite through optimized HCl leaching using response surface methodology","authors":"Fatih Turan, Sezai Sen, Gül Akar Sen","doi":"10.1080/01496395.2024.2315605","DOIUrl":"https://doi.org/10.1080/01496395.2024.2315605","url":null,"abstract":"","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139848321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-09DOI: 10.1080/01496395.2024.2315617
H. A. Taner, Vildan Onen
{"title":"Environmentally friendly alternative depressants in chalcopyrite flotation","authors":"H. A. Taner, Vildan Onen","doi":"10.1080/01496395.2024.2315617","DOIUrl":"https://doi.org/10.1080/01496395.2024.2315617","url":null,"abstract":"","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139848224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-02DOI: 10.1080/01496395.2024.2315609
Juan Zuluaga, Pablo Rodríguez, Misael Cortés, Fabrice Vaillant
{"title":"Improving microfiltration efficiency of fruit beverages through backpulsing: Impact on permeate flux, cost-effectiveness and bioactive compounds retention","authors":"Juan Zuluaga, Pablo Rodríguez, Misael Cortés, Fabrice Vaillant","doi":"10.1080/01496395.2024.2315609","DOIUrl":"https://doi.org/10.1080/01496395.2024.2315609","url":null,"abstract":"","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140515381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-18DOI: 10.1080/01496395.2023.2282371
Aftab Majeed, Luqman Ali Shah, S. Faizan, Hameed Ullah
ABSTRACT Due to the presence of highly persistent and non-biodegradable dyes that are capable of causing harm to people, plants, animals, and the environment, the treatment of dye-contaminated water tends to be highly challenging. In the current work, polyacrylic acid and bio-polymer-based hydrogels of hydroxyl ethyl cellulose (HEC) were prepared through the free radical polymerization method and were used as adsorbents for the adsorption of methylene blue (MB). To estimate the nature and mechanism of adsorption, kinetics, and isotherm models were adopted. Pseudo-second-order kinetic model was followed by the sorption of MB. Results demonstrated that with an increase in concentration of dye dosage, adsorption increases linearly. Freundlich isotherm model was followed for the sorption of MB onto polyacrylic acid and bio-polymer-based hydrogels. Thermodynamic study of the adsorption process reveals that the adsorption process was spontaneous and endothermic as inferred from Gibbs free energy and enthalpy values of 33.08 kJ/mol and 3.83 kJ/mol at 303K, respectively. Recycling performance was tested and inferred that bio-polymer-based hydrogel having 0.6 gm. Hydroxyethyl cellulose decreases its adsorption efficiency equivalent to 5% after consecutive five cycles. The bio-polymer-based hydrogels will be used as an effective adsorbent for removing cationic dyes from wastewater on an industrial scale.
{"title":"Fabrication of bio-polymer-based hydrogel for methylene blue remediation: Kinetics, mechanisms, and environmental implications","authors":"Aftab Majeed, Luqman Ali Shah, S. Faizan, Hameed Ullah","doi":"10.1080/01496395.2023.2282371","DOIUrl":"https://doi.org/10.1080/01496395.2023.2282371","url":null,"abstract":"ABSTRACT Due to the presence of highly persistent and non-biodegradable dyes that are capable of causing harm to people, plants, animals, and the environment, the treatment of dye-contaminated water tends to be highly challenging. In the current work, polyacrylic acid and bio-polymer-based hydrogels of hydroxyl ethyl cellulose (HEC) were prepared through the free radical polymerization method and were used as adsorbents for the adsorption of methylene blue (MB). To estimate the nature and mechanism of adsorption, kinetics, and isotherm models were adopted. Pseudo-second-order kinetic model was followed by the sorption of MB. Results demonstrated that with an increase in concentration of dye dosage, adsorption increases linearly. Freundlich isotherm model was followed for the sorption of MB onto polyacrylic acid and bio-polymer-based hydrogels. Thermodynamic study of the adsorption process reveals that the adsorption process was spontaneous and endothermic as inferred from Gibbs free energy and enthalpy values of 33.08 kJ/mol and 3.83 kJ/mol at 303K, respectively. Recycling performance was tested and inferred that bio-polymer-based hydrogel having 0.6 gm. Hydroxyethyl cellulose decreases its adsorption efficiency equivalent to 5% after consecutive five cycles. The bio-polymer-based hydrogels will be used as an effective adsorbent for removing cationic dyes from wastewater on an industrial scale.","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139262067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-17DOI: 10.1080/01496395.2023.2280507
T. Kodispathi, K. J. Mispa
ABSTRACT Nano-sized composite ion-exchanger can be applied as an electrochemically switchable ion-exchanger for waste water treatment, especially in the separation of heavy metal ions from the polluted aquatic system. Advanced polyaniline/Ti(IV) iodomolybdate nanocomposite ion-exchanger have been synthesized by in-situ chemical oxidation polymerization shows better ion-exchange capacity than individual inorganic counterpart. The physico-chemical characterization was done by FT-IR, XRD, simultaneous TGA-DTA, SEM, HR-TEM and electrochemical impedance studies. According to impedance/dielectrical study, it has high resistivity in the low-frequency region. The distribution studies and binary separation revealed that the ion-exchange material is highly selective for Pb2+, which is a most important environmental pollutant. Thus, PANI/TIM nanocomposite ion-exchanger can be used for Pb(II) ion-selective membrane for the treatment of aquatic pollutants in future.
{"title":"Titanium-embedded nanocomposite material stimulates ion-exchange characteristics to deal with toxic heavy metal pollutants in aquatic environment","authors":"T. Kodispathi, K. J. Mispa","doi":"10.1080/01496395.2023.2280507","DOIUrl":"https://doi.org/10.1080/01496395.2023.2280507","url":null,"abstract":"ABSTRACT Nano-sized composite ion-exchanger can be applied as an electrochemically switchable ion-exchanger for waste water treatment, especially in the separation of heavy metal ions from the polluted aquatic system. Advanced polyaniline/Ti(IV) iodomolybdate nanocomposite ion-exchanger have been synthesized by in-situ chemical oxidation polymerization shows better ion-exchange capacity than individual inorganic counterpart. The physico-chemical characterization was done by FT-IR, XRD, simultaneous TGA-DTA, SEM, HR-TEM and electrochemical impedance studies. According to impedance/dielectrical study, it has high resistivity in the low-frequency region. The distribution studies and binary separation revealed that the ion-exchange material is highly selective for Pb2+, which is a most important environmental pollutant. Thus, PANI/TIM nanocomposite ion-exchanger can be used for Pb(II) ion-selective membrane for the treatment of aquatic pollutants in future.","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139262990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-16DOI: 10.1080/01496395.2023.2279949
Nguyen Hoang Luan, Doan Thi Thu Trang, Nguyen Minh Thuan, Nguyen Thi My Linh, Nguyen Thi Truc Phuong, Ngo Tran Hoang Duong, Nguyen Van Dung, Tran Thuy Tuyet Mai, Nguyen Quang Long
ABSTRACT Powdered zeolites have been reported as effective CO2 capture materials. However, pellet form is needed for industrial application. In this study, shaped zeolite X (ZX) and Fe3+ ion-exchanged zeolite X (ZXFe) with geopolymer as binder were produced in forms of cylinder pellets (Ø = 5 mm, h = 5 mm) at low temperature. The geopolymer was obtained through the geopolymerization of metakaolin using NaOH as an alkaline activating agent. The material formed by this way remained the zeolite X structure that was confirmed by X-ray diffraction (XRD) analysis. Additionally, scanning electron microscopy (SEM) results of the two different kind geopolymer – zeolite pellets were considered for observation and comparison. BET analysis was also conducted to determine the specific surface area of the GZX3 samples and GZXFeL3 samples. This kind of analysis also provided the information about the adsorption – desorption curves and pore size distributions of the two pellet samples. The difference of the temperature in the pretreatment process affected the degas ability of the pellet and the series of experiments were carried out to make clear comparison. The highest CO2 adsorption capacities of pellets were found in the GZX3 (containing the zeolite X) and GZXFeL3 (containing the ZXFe). Despite the rapid decrease in the surface areas from 409 to 261 m2/g for GZX3 and GZXFeL3 respectively, GZXFeL3 showed higher CO2 capacities than the other (1.03 compared to 0.96 mmol/g). In the regeneration study, after several cycles of adsorption – desorption of GZXFeL3 pellets, the adsorption capacity of CO2 decreased about 10%. These adsorption and desorption experiments implied that the pellets formed by ZXFe could be a promising adsorbent for the CO2 capture.
{"title":"Geopolymer-zeolite and geopolymer- iron (III) ion exchanged zeolite pellets as highly regenerable CO2 adsorbents","authors":"Nguyen Hoang Luan, Doan Thi Thu Trang, Nguyen Minh Thuan, Nguyen Thi My Linh, Nguyen Thi Truc Phuong, Ngo Tran Hoang Duong, Nguyen Van Dung, Tran Thuy Tuyet Mai, Nguyen Quang Long","doi":"10.1080/01496395.2023.2279949","DOIUrl":"https://doi.org/10.1080/01496395.2023.2279949","url":null,"abstract":"ABSTRACT Powdered zeolites have been reported as effective CO2 capture materials. However, pellet form is needed for industrial application. In this study, shaped zeolite X (ZX) and Fe3+ ion-exchanged zeolite X (ZXFe) with geopolymer as binder were produced in forms of cylinder pellets (Ø = 5 mm, h = 5 mm) at low temperature. The geopolymer was obtained through the geopolymerization of metakaolin using NaOH as an alkaline activating agent. The material formed by this way remained the zeolite X structure that was confirmed by X-ray diffraction (XRD) analysis. Additionally, scanning electron microscopy (SEM) results of the two different kind geopolymer – zeolite pellets were considered for observation and comparison. BET analysis was also conducted to determine the specific surface area of the GZX3 samples and GZXFeL3 samples. This kind of analysis also provided the information about the adsorption – desorption curves and pore size distributions of the two pellet samples. The difference of the temperature in the pretreatment process affected the degas ability of the pellet and the series of experiments were carried out to make clear comparison. The highest CO2 adsorption capacities of pellets were found in the GZX3 (containing the zeolite X) and GZXFeL3 (containing the ZXFe). Despite the rapid decrease in the surface areas from 409 to 261 m2/g for GZX3 and GZXFeL3 respectively, GZXFeL3 showed higher CO2 capacities than the other (1.03 compared to 0.96 mmol/g). In the regeneration study, after several cycles of adsorption – desorption of GZXFeL3 pellets, the adsorption capacity of CO2 decreased about 10%. These adsorption and desorption experiments implied that the pellets formed by ZXFe could be a promising adsorbent for the CO2 capture.","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139269146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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