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Nayak A, Karkare VP, Sadani K, Dasari H, Sivasamy A, Sundarabal N. Asphaltene-derived nanocomposites for the removal of emerging pollutants and its antimicrobial effects: batch and continuous column studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33049-8. [PMID: 38528220 DOI: 10.1007/s11356-024-33049-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 03/19/2024] [Indexed: 03/27/2024]
Abstract
Emerging contaminants are diverse ecotoxic materials requiring unique treatment for removal. Asphaltenes are environmentally hazardous carbon-rich solid waste product of the petroleum industry. In the current work, asphaltene-derived activated carbon (AC) was loaded with silver (Ag/AC) and used to remove amoxicillin (AMX) and tetracycline (TC) from aqueous phase. The prepared Ag/AC was characterised using FESEM, FTIR, XRD and surface area analysis. The FESEM micrographs confirmed the spherical silver nanoparticle-laden porous AC, and the BET surface area was found to be 213 m2/g. Batch adsorption studies were performed, and the equilibrium data were fit into adsorption isotherm and kinetic models. The Ag/AC exhibited superior monolayer adsorption capacity of 1012 mg/g and 770 mg/g for AMX and TC, respectively. The continuous column studies were also performed to evaluate the breakthrough parameters. Furthermore, the antimicrobial activity of the adsorbent was evaluated using zone of inhibition studies. Ag/AC was found to have an 8-mm-diameter zone of microbial inhibition. The obtained results showed that Ag/AC was a promising material for the removal of antibiotics and inhibition of resistance-developed mutated microbes in effluent water.
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Affiliation(s)
- Abhishek Nayak
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, 576104, Karnataka, India
| | - Vaishnavi P Karkare
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, 576104, Karnataka, India
| | - Kapil Sadani
- Department of Instrumentation & Control Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, 576104, Karnataka, India
| | - Harshini Dasari
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, 576104, Karnataka, India
| | - Arumugam Sivasamy
- Catalysis Science Laboratory & Cell for Industrial Safety and Risk Analysis (CISRA), CSIR-Central Leather Research Institute Adyar, Chennai, 600020, India
| | - Nethaji Sundarabal
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, 576104, Karnataka, India.
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Allahkarami E, Dehghan Monfared A, Silva LFO, Dotto GL. Application of Pb-Fe spinel-activated carbon for phenol removal from aqueous solutions: fixed-bed adsorption studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:23870-23886. [PMID: 36331730 DOI: 10.1007/s11356-022-23891-z] [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: 05/05/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Fixed-bed studies for phenol uptake from water were carried out using a novel Pb-Fe spinel-activated carbon adsorbent. A characterization phase including TGA, FTIR, SEM, and BET analyses was performed for the developed active carbon. In column studies, the influence of initial phenol concentration, column bed height, and the solution flow rate was investigated at natural pH. Adsorption of phenol onto Pb-Fe spinel-activated carbon composite and pristine activated carbon was analyzed in the form of breakthrough curves. Under optimum conditions, the maximum adsorption capacities for the magnetic active carbon composite and pristine activated carbon were found to be 113.95 and 102.61 mg/g, respectively. Results indicated that the adsorption capacity of adsorbent for all examined conditions was higher than that obtained for unmodified activated carbon because the composite contains additional metal hydroxides compared with the pristine activated carbon. The Yoon and Nelson, Thomas, and instantaneous local equilibrium (ILE) models were used to explain column data collected under different operating conditions. Finally, the results of the continuous adsorption process were explained successfully using the Yoon-Nelson and Thomas models. Thus, the phenol adsorption on Pb-Fe@MAC was a feasible operation to be performed in fixed-bed mode.
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Affiliation(s)
- Esmaeil Allahkarami
- Department of Petroleum Engineering, Faculty of Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Shahid Mahini Blvd, Bushehr, 75169-13817, Iran
- Persian Gulf Star Oil Company, Bandar Abbas, Iran
| | - Abolfazl Dehghan Monfared
- Department of Petroleum Engineering, Faculty of Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Shahid Mahini Blvd, Bushehr, 75169-13817, Iran.
| | - Luis Felipe Oliveira Silva
- Department of Civil and Environmental, Universidad de La Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
| | - Guilherme Luiz Dotto
- Chemical Engineering Department, Federal University of Santa Maria, UFSM, Roraima Avenue 1000, Santa Maria, RS, 97105900, Brazil
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Fixed-Bed Adsorption: Comparisons of Virgin and Zirconium Oxide-Coated Scoria for the Removal of Fluoride from Water. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082527. [PMID: 35458725 PMCID: PMC9031718 DOI: 10.3390/molecules27082527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 12/07/2022]
Abstract
Many people worldwide are exposed to extreme levels of fluoride in drinking water. It is, therefore, critical to develop inexpensive, locally available, and environmentally friendly adsorbents for fluoride-laden water defluoridation. In the current study, virgin scoria (volcanic rock) from Ethiopia, was modified with zirconium oxide and used as an adsorbent in a fixed-bed column aiming at the removal of fluoride from water. The adsorption capability of zirconium oxide-coated scoria (ZrOCSc) was compared with unmodified virgin scoria (VSco). XRD, FTIR, XRF, SEM, ICP-OES, and the pHPZC tests were evaluated to explore the adsorption mechanisms. Thermal analysis of VSco and ZrOCSc revealed lower total weight losses of 2.3 and 3.2 percent, respectively, owing to the removal of water molecules and OH species linked to metal oxides contained in the material. The effect of test conditions such as the pH of the solution and the influent flow rate on the adsorption capacity of the adsorbent was carefully studied. ZrOCSc exhibited the maximum removal capacity of 58 mg/kg, which was 4.46 times higher than the observations for VSco (13 mg/kg) at pH 2, and an initial flow rate of 1.25 mL/min. Breakthrough time increased with decreasing initial pH and flow rate. The adsorption experimental data under various test conditions were examined by the Thomas and Adams–Bohart models. Both models were found very effective in describing the experimental data with a correlation coefficient (R2) of ≥0.976 (ZrOCSc) and ≥0.967 (VSco). Generally, coating VSco with zirconium oxide improved the adsorption performance of VSco; hence, a ZrOCSc-packed fixed bed could be employed for the decontamination of high levels of fluoride from groundwater. However, further examination of the adsorbent using natural groundwater is advisable to produce a definitive conclusion.
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Othmani A, Magdouli S, Senthil Kumar P, Kapoor A, Chellam PV, Gökkuş Ö. Agricultural waste materials for adsorptive removal of phenols, chromium (VI) and cadmium (II) from wastewater: A review. ENVIRONMENTAL RESEARCH 2022; 204:111916. [PMID: 34428450 DOI: 10.1016/j.envres.2021.111916] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/14/2021] [Accepted: 08/17/2021] [Indexed: 05/21/2023]
Abstract
Management of basic natural resources and the spent industrial and domestic streams to provide a sustainable safe environment for healthy living is a magnum challenge to scientists and environmentalists. The present remedial approach to the wastewater focuses on recovering pure water for reuse and converting the contaminants into a solid matrix for permanent land disposal. However, the ground water aquifers, over a long period slowly leach the contaminants consequently polluting the ground water. Synthetic adsorbents, mainly consisting of polymeric resins, chelating agents, etc. are efficient and have high specificity, but ultimate disposal is a challenge as most of these materials are non-biodegradable. In this context, it is felt appropriate to review the utility of adsorbents based on natural green materials such as agricultural waste and restricted to few model contaminants: phenols, and heavy metals chromium(VI), and cadmium(II) in view of the vast amount of literature available. The article discusses the features of the agricultural waste material-based adsorbents including the mechanism. It is inferred that agricultural waste materials are some of the common renewable sources available across the globe and can be used as sustainable adsorbents. A discussion on challenges for industrial scale implementation and integration with advanced technologies like magnetic-based approaches and nanotechnology to improve the removal efficiency is included for future prospects.
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Affiliation(s)
- Amina Othmani
- Faculty of Sciences of Monastir, University of Monastir, Avenue of the Environment, 5019, Monastir, Tunisia.
| | - Sara Magdouli
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, M3J 1P3, Ontario, Canada; Institut National de la Recherche Scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 Rue de la Couronne, Québec, G1K 9A9, Qc, Canada; Centre Technologique des Résidus Industriels en Abitibi Témiscamingue, 433 Boulevard du Collège, J9X0E1, Canada
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India.
| | - Ashish Kapoor
- Department of Chemical Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | | | - Ömür Gökkuş
- Erciyes University, Engineering Faculty Environmental Engineering Department, 38039, Kayseri, Turkey
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Sridhar A, Ponnuchamy M, Kapoor A, Prabhakar S. Valorization of food waste as adsorbents for toxic dye removal from contaminated waters: A review. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127432. [PMID: 34688000 DOI: 10.1016/j.jhazmat.2021.127432] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/09/2021] [Accepted: 10/02/2021] [Indexed: 05/07/2023]
Abstract
Industrial contaminants such as dyes and intermediates are released into water bodies, making the water unfit for human use. At the same time large amounts of food wastes accumulate near the work places, residential complexes etc. polluting the air due to putrefaction. The need of the hour lies in finding innovative solutions for dye removal from wastewater streams. In this context, the article emphasizes adoption or conversion of food waste materials, an ecological nuisance, as adsorbents for the removal of dyes from wastewaters. Adsorption, being a well-established technique, the review critically examines the specific potential of food waste constituents as dye adsorbents. The efficacy of food waste-based adsorbents is examined, besides addressing the possible adsorption mechanisms and the factors affecting phenomenon such as pH, temperature, contact time, adsorbent dosage, particle size, and ionic strength. Integration of information and communication technology approaches with adsorption isotherms and kinetic models are emphasized to bring out their role in improving overall modeling performance. Additionally, the reusability of adsorbents has been highlighted for effective substrate utilization. The review makes an attempt to stress the valorization of food waste materials to remove dyes from contaminated waters thereby ensuring long-term sustainability.
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Affiliation(s)
- Adithya Sridhar
- School of Food Science and Nutrition, Faculty of Environment, The University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Muthamilselvi Ponnuchamy
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
| | - Ashish Kapoor
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India.
| | - Sivaraman Prabhakar
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
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Francis AO, Zaini MAA, Muhammad IM, Abdulsalam S, El-Nafaty UA. Adsorption dynamics of phenol by crab shell chitosan. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2020-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe performance of crab shell chitosan (600 µm) as prospective adsorbent for phenol removal was studied in dynamics mode. The chitosan adsorbent had specific surface area of 191 m2/g and showed the surface characteristics linked to amine/amide groups. The effects of operating conditions on phenol adsorption at different concentrations (100 and 200 mg/L), flow rates (2.17 and 2.90 mL/min) and bed heights (1.75 and 3.5 cm) were evaluated. Results showed that the maximum phenol adsorption capacity by the crab shell chitosan was recorded at 190 mg/g. Thomas, Yoon–Nelson and Adam–Bohart models displayed good correlation with experimental data, hence best described the dynamics breakthrough of phenol removal. External and internal diffusion were the rate controlling mechanism, while the entire system was predominated by a simultaneous steady state process of intraparticle diffusion and ionic interactions. The crab shell chitosan shows a promising potential as adsorbent for wastewater treatment.
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Affiliation(s)
- Asokogene Oluwadayo Francis
- Department of Mineral and Petroleum Resources Engineering, Federal Polytechnic, Auchi, Edo State, Nigeria
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Muhammad Abbas Ahmad Zaini
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Idris Misau Muhammad
- Department of Chemical Engineering, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria
| | - Surajudeen Abdulsalam
- Department of Chemical Engineering, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria
| | - Usman Aliyu El-Nafaty
- Department of Chemical Engineering, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria
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