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Tarek Ghaly S, Eldemerdash UN, El-Shazly AH. Morphology and Thermodynamic Study of a Novel Composite Membrane from Waste Polystyrene/Slag: Experimental Investigation. ACS OMEGA 2024; 9:23512-23522. [PMID: 38854541 PMCID: PMC11154918 DOI: 10.1021/acsomega.4c00671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 06/11/2024]
Abstract
The development of the membrane surface and cross-sectional morphology is pivotal in influencing the effectiveness of membrane separation. In this study, evaluating the separation rates between the solvent and nonsolvent in the casting solution and the related thermodynamic alteration analysis were illustrated. Additionally, the rheological variations were determined by measuring the viscosity of the resulting dope solutions, providing an initial estimation of the phase separation kinetics. Asymmetric polystyrene (PS)/slag composite membrane, incorporating slag waste as an inorganic additive, was developed. Dimethylformamide (DMF) was utilized as the solvent, and sodium dodecyl sulfate (SDS) was employed as an anionic surfactant to facilitate the casting process. A tertiary system diagram approach involving waste PS, DMF, and water introducing slag as an inorganic additive and SDS as a surfactant was attained to promote the separation of the solvent and nonsolvent in the casting solution. These novel composite mixtures exhibited increased thermodynamic instability within the coagulation bath, facilitating the rapid separation of solid membranes from the dope solutions and forming composite membranes with significantly increased porosity (exceeding a 20% increase) compared to that of plain waste materials. The composite membrane characteristics were assessed with the widely used poly(vinylidene difluoride) (PVDF) membrane, showing comparative features and performance when tested on a membrane distillation (MD) cell; it gave a flux of 1 kg/m2·h. These promising characteristics positioned this novel PS/slag composite membrane as a candidate for various water-related applications.
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Affiliation(s)
- Salma Tarek Ghaly
- Chemical
and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology, New Borg AL Arab City, 21934 Alexandria, Egypt
- Central
Metallurgical Research and Development Institute (CMRDI), P.O. Box 87 Helwan, 11421 Cairo, Egypt
| | - Usama Nour Eldemerdash
- Chemical
and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology, New Borg AL Arab City, 21934 Alexandria, Egypt
- Benha
Faculty of Engineering, Benha University, 13511 Qaliobiya, Egypt
| | - A. H. El-Shazly
- Chemical
and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology, New Borg AL Arab City, 21934 Alexandria, Egypt
- Chemical
Engineering Department, Faculty of Engineering, Alexandria University, 5424041 Alexandria, Egypt
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Khanzada NK, Al-Juboori RA, Khatri M, Ahmed FE, Ibrahim Y, Hilal N. Sustainability in Membrane Technology: Membrane Recycling and Fabrication Using Recycled Waste. MEMBRANES 2024; 14:52. [PMID: 38392679 PMCID: PMC10890584 DOI: 10.3390/membranes14020052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/23/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
Membrane technology has shown a promising role in combating water scarcity, a globally faced challenge. However, the disposal of end-of-life membrane modules is problematic as the current practices include incineration and landfills as their final fate. In addition, the increase in population and lifestyle advancement have significantly enhanced waste generation, thus overwhelming landfills and exacerbating environmental repercussions and resource scarcity. These practices are neither economically nor environmentally sustainable. Recycling membranes and utilizing recycled material for their manufacturing is seen as a potential approach to address the aforementioned challenges. Depending on physiochemical conditions, the end-of-life membrane could be reutilized for similar, upgraded, and downgraded operations, thus extending the membrane lifespan while mitigating the environmental impact that occurred due to their disposal and new membrane preparation for similar purposes. Likewise, using recycled waste such as polystyrene, polyethylene terephthalate, polyvinyl chloride, tire rubber, keratin, and cellulose and their derivates for fabricating the membranes can significantly enhance environmental sustainability. This study advocates for and supports the integration of sustainability concepts into membrane technology by presenting the research carried out in this area and rigorously assessing the achieved progress. The membranes' recycling and their fabrication utilizing recycled waste materials are of special interest in this work. Furthermore, this study offers guidance for future research endeavors aimed at promoting environmental sustainability.
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Affiliation(s)
- Noman Khalid Khanzada
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Raed A Al-Juboori
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Muzamil Khatri
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Farah Ejaz Ahmed
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Yazan Ibrahim
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Nidal Hilal
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
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Li G, Chen D. Comparison of different extraction methods of active ingredients of Chinese medicine and natural products. J Sep Sci 2024; 47:e2300712. [PMID: 38234023 DOI: 10.1002/jssc.202300712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/19/2024]
Abstract
Like other traditional medicine in the world, Chinese traditional medicine (CTM) has a long history, which is a treasure of the combination of medicine and Chinese classical culture even more than 5000 years. For thousands of years, CTM has made great contributions to the reproduction and health of the Chinese people. It was an efficient therapeutic tool under the guidance of Chinese traditional medical theory, its source is generally natural products, but there are also a small number of it are natural products after some processing methods. In fact, the definition of Chinese medicine (CM) includes both traditional and new CM developed by modern technology. It is well known that the chemical composition of most CM and natural products is very complex, for example, a single herb may contain hundreds of different chemicals, including active ingredients, side effects, and even toxic ingredients. Therefore, the extraction process is particularly crucial for the quality and clinical efficacy of CM and natural products. In this work, a new classification method was proposed to divide the extraction technologies of CM and natural products into 21 kinds in recent years and analyze their status, advantages, and disadvantages. Then put forward a new technical route based on ultra-high-pressure extraction technology for rapid extraction else while removing harmful impurities and making higher utilization of CM and natural products. It is a useful exploration for the extraction industry of medicinal materials and natural products in the world.
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Affiliation(s)
- Geyuan Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Dongya Chen
- Institute of Toxicology and Risk Assessment, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
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Yasmeen R, Sarfraz M, Shah WUH, Ivascu L, Cifuentes-Faura J. The impact of public awareness, infrastructure, and technological development with economic growth on solid waste management of European countries: does governance quality matters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:113442-113456. [PMID: 37851251 DOI: 10.1007/s11356-023-30356-4] [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: 03/31/2023] [Accepted: 10/05/2023] [Indexed: 10/19/2023]
Abstract
Solid waste generation is a significant problem affecting the ecosystem, human health, and safety. However, the issue is not given the attention it truly deserves. Consequently, this study is aimed at assessing the impact of various factors, such as economic growth, public awareness, infrastructure, and technological advancements, on generating municipal waste in the European Union (EU) for the period 1995-2020. Furthermore, the study incorporated the mediating effect of economic growth and government effectiveness with public awareness, infrastructure, and technological development to reduce waste generation. By employing the bias-corrected method of moments, the study finds that overall waste generation does not decrease over time in EU economies. Furthermore, Denmark is the top-ranked country among the sampled countries to generate waste. However, Finland is at the top in government effectiveness. The empirical findings showed that economic growth is the significant reason for the increase in solid waste production. Additionally, the interaction effects of economic growth with public awareness, infrastructure, and technological development are positive. However, the individual impact of public awareness, infrastructure, and technological development is positive in reducing waste generation. Governance effectiveness is a significant tool to lower waste generation in European economies.
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Affiliation(s)
- Rizwana Yasmeen
- School of Economics and Management, Panzhihua University, Panzhihua, 617000, China
| | - Muddassar Sarfraz
- School of Management, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Wasi Ul Hassan Shah
- School of Management, Zhejiang Shuren University, Hangzhou, 310015, China.
- Department of Economics, University of Religions and Denominations, Qom, 37491-13357, Iran.
| | - Larisa Ivascu
- Faculty of Management in Production and Transportation, Politehnica University of Timisoara, 300191, Timisoara, Romania
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Lopatina A, Esmaeili M, Anugwom I, Mänttäri M, Kallioinen-Mänttäri M. Effect of Low Concentrations of Lithium Chloride Additive on Cellulose-Rich Ultrafiltration Membrane Performance. MEMBRANES 2023; 13:198. [PMID: 36837701 PMCID: PMC9964057 DOI: 10.3390/membranes13020198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/10/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Various water treatment processes make extensive use of porous polymeric membranes. A key objective in membrane fabrication is to improve membrane selectivity without sacrificing other properties such as permeability. Herein, LiCl (0-2 wt.%) was utilised as a preforming agent in fabricating biomass-derived cellulosic membranes. The fabricated membranes were characterised by dope solution viscosity, surface and cross-sectional morphology, pure water flux, relative molecular mass cut-off (MWCO, 35 kDa), membrane chemistry, and hydrophilicity. The results demonstrated that at the optimum LiCl concentration (0.4 wt.%), there is an interplay of thermodynamic instability and kinetic effects during membrane formation, wherein the membrane morphology and hydrophilicity can be preferably altered and thus lead to the formation of the membrane with better rejection at no detriment to its permeability.
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Agboola O, Khalih AA, Oladokun O, Ayeni AO, Chukwudubem FU, Odunlami O, Elehinafe F, Yahaya A, Fayomi OSI. Statistical Analyses of Pore Radii on the Performance of PET-Nanocomposite Membranes in the Removal of Iron and Anions from Ibeshe River. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1016/j.sajce.2023.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Mir FQ, Hameed F, Sajad Y, Mukhdoomi B. Green and Non‐Conventional Materials for Membrane Synthesis: A Review. ChemistrySelect 2022. [DOI: 10.1002/slct.202201195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fasil Qayoom Mir
- Department of Chemical Engineering National Institute of Technology Srinagar, Hazratbal Srinagar, Jammu and Kashmir 190006 India
| | - Faheem Hameed
- Department of Chemical Engineering National Institute of Technology Srinagar, Hazratbal Srinagar, Jammu and Kashmir 190006 India
| | - Yamir Sajad
- Department of Chemical Engineering National Institute of Technology Srinagar, Hazratbal Srinagar, Jammu and Kashmir 190006 India
| | - Bushra Mukhdoomi
- Department of Chemical Engineering National Institute of Technology Srinagar, Hazratbal Srinagar, Jammu and Kashmir 190006 India
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