1
|
Gaikwad RW, Sonawane AV, Hakke VS, Sonawane SH, Gaikwad MS, Lakhera SK, Babu G V, Warade AR, Urgunde AB, Sapkal VS. Application of apophyllite and thomsonite natural zeolite as modified adsorbents for the removal of zinc from acid mine drainage. Chemosphere 2024; 350:141095. [PMID: 38182086 DOI: 10.1016/j.chemosphere.2023.141095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 12/07/2023] [Accepted: 12/30/2023] [Indexed: 01/07/2024]
Abstract
Materials composed of natural zeolite have the potential to serve as highly effective adsorbents in the treatment of wastewater. The present study explores zeolite resin-based Apophyllite and Thomsonite as adsorbents for removing Zinc from acid mine drainage solution. The characteristics of the natural zeolites (Apophyllites and Thomsonite) are investigated using X-ray diffraction, Fourier-transform infrared spectroscopy and Field emission scanning electron microscopy analysis. The removal of Zinc from AMD is explored, and the influence of metal ion concentration, resin dose, and pH is investigated using a batch exchange resin-based experimental method. Maximum zinc removal occurs in the pH range of 2-6 with an initial zinc content of 50-250 mg/L and a resin dosage of 25-700 mg/L, indicating that the adsorption process is pH-dependent. Various isotherm models, including those proposed by Freundlich and Langmuir as well as Redlich-Peterson, Dubinin, and Temkin, are used to verify the results of the experimental research. All these isotherm models' constants are determined. Both resins showed different sorption efficiencies at different operating conditions. However, highest Zn removal efficiency of 86.2% was observed for the Thomsonite zeolite resin whereas Apophyllite zeolite resin showed maximum Zn uptake of 81.6%. Thus, Thomsonite was found to be an effective sorbent.
Collapse
Affiliation(s)
- Ravindra W Gaikwad
- Department of Chemical Engineering, Jawaharlal Nehru Engineering College, MGM University, Aurangabad, MS, 431003, India.
| | - Amol Vijay Sonawane
- Department of Chemical Engineering, National Institute of Technology Warangal, Telangana State, 506004, India.
| | - Vikas S Hakke
- Department of Chemical Engineering, National Institute of Technology Warangal, Telangana State, 506004, India.
| | - Shirish H Sonawane
- Department of Chemical Engineering, National Institute of Technology Warangal, Telangana State, 506004, India.
| | - Mahendra S Gaikwad
- Department of Chemical Engineering, National Institute of Technology Raipur, Raipur, Chhattisgarh, 492010, India
| | - Sandeep Kumar Lakhera
- Department of Physics and Nanotechnology, College of Engineering and Technology, SRM Institute of Science & Technology (SRMIST), Kattankulathur, Chengalpattu District, 603203, Tamil Nadu, India.
| | - Venu Babu G
- Shilpa Pharma Life Sciences Ltd, Deosugur, Dist Raicur, India
| | - A R Warade
- Department of Chemical Engineering, Pravara Rural Engineering College, Loni, MS, 413736, India.
| | - Ajay B Urgunde
- Department of Chemistry, Indian Institute of Technology, Jodhpur, Rajasthan, 34203, India.
| | - Vilas S Sapkal
- Department of Chemical Engineering, Jawaharlal Nehru Engineering College, MGM University, Aurangabad, MS, 431003, India.
| |
Collapse
|
2
|
Giordani M, Mattioli M, Cangiotti M, Fattori A, Ottaviani MF, Betti M, Ballirano P, Pacella A, Di Giuseppe D, Scognamiglio V, Hanuskova M, Gualtieri AF. Characterisation of potentially toxic natural fibrous zeolites by means of electron paramagnetic resonance spectroscopy and morphological-mineralogical studies. Chemosphere 2022; 291:133067. [PMID: 34838598 DOI: 10.1016/j.chemosphere.2021.133067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/27/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
This study explored the morphological, mineralogical, and physico-chemical features of carcinogenic erionite and other possibly hazardous zeolites, such as mesolite and thomsonite, while also investigating the interacting capability of the mineral surface at the liquid/solid interface. Extremely fibrous erionite is K+ and Ca2+-rich and shows the highest Si/Al ratio (3.38) and specific surface area (8.14 m2/g). Fibrous mesolite is Na+ and Ca2+-rich and displays both a lower Si/Al ratio (1.56) and a smaller specific surface area (1.56 m2/g). The thomsonite composition shows the lowest values of Si/Al ratio (1.23) and specific surface area (0.38 m2/g). Electron paramagnetic resonance data from selected spin probes reveal that erionite has a homogeneous site distribution and interacts well with all spin probes. The surfaces of mesolite and thomsonite are less homogeneous and closer polar sites were found through consequent interaction with the probes. The mesolite surface can also clearly interact but with a lower strength and may represent a potential health hazard for humans, though with a lower degree if compared to erionite. The thomsonite surface is not inert and interacts with the probes with a low-grade capability. We can expect small fragments of thomsonite to interact with the biological environment, though with a low-grade intensity.
Collapse
Affiliation(s)
- Matteo Giordani
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Michele Mattioli
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, 61029, Urbino, Italy.
| | - Michela Cangiotti
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Alberto Fattori
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, 61029, Urbino, Italy
| | | | - Michele Betti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Paolo Ballirano
- Department of Earth Sciences, Sapienza University of Rome, 00185, Rome, Italy
| | - Alessandro Pacella
- Department of Earth Sciences, Sapienza University of Rome, 00185, Rome, Italy
| | - Dario Di Giuseppe
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, I-41125, Modena, Italy
| | - Valentina Scognamiglio
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, I-41125, Modena, Italy
| | - Miriam Hanuskova
- Department of Engineering "Enzo Ferrari", University of Modena and Reggio Emilia, I-41125, Modena, Italy
| | - Alessandro F Gualtieri
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, I-41125, Modena, Italy
| |
Collapse
|