Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal
The objectives of this study are the thermal remediation of bentonite waste to convert non-hazardous material, and the use of the obtained thermal recycling bentonite waste (TRBW) as a novel low-cost adsorbent for the removal of heavy metals from aqueous solution using the batch system. The origin...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Polish Society of Ecological Engineering (PTIE)
2023-05-01
|
| Series: | Journal of Ecological Engineering |
| Subjects: | |
| Online Access: | http://www.jeeng.net/Thermal-Recycling-of-Bentonite-Waste-as-a-Novel-and-a-Low-Cost-Adsorbent-for-Heavy,161805,0,2.html |
| _version_ | 1797857343390613504 |
|---|---|
| author | Mukhtar Dhajir Shubber Daryoush Yousefi Kebria |
| author_facet | Mukhtar Dhajir Shubber Daryoush Yousefi Kebria |
| author_sort | Mukhtar Dhajir Shubber |
| collection | DOAJ |
| description | The objectives of this study are the thermal remediation of bentonite waste to convert non-hazardous material, and the use of the obtained thermal recycling bentonite waste (TRBW) as a novel low-cost adsorbent for the removal of heavy metals from aqueous solution using the batch system. The origin of bentonite waste is a by-product from plants of spent engine oil recycling [PSEOR]. It was remediated in two stages, directly burning and in the electrical furnace at 700 Cᵒ for 100 minutes to eliminate oil residues and impurities. The tests of XRD, BET, FTIR, EDX, and SEM were accomplished to identify the chemical and physical characteristics of TRBW. After then, the examination of the ability of TRBW to adsorption of the five heavy metals (Zn, Ni, Cd, Cr, and Pb) with different experimental parameters such as initial concentration, adsorbent dose, temperature, pH, and contact time. Different models of isotherm, kinetic, and thermodynamic were utilized and the results indicate that the nature of heavy metals adsorption onto TRBW was homogeneous. According to the maximum adsorption capacities, the metals ranked as Pb> Cd> Zn> Cr> Ni, and adsorption capacities were 94.97, 73.85, 39.56, 38.34, and 36.33 mg/g, respectively. |
| first_indexed | 2024-04-09T20:55:13Z |
| format | Article |
| id | doaj.art-4488d2bfb3ed4194993d13dd921fb033 |
| institution | Directory Open Access Journal |
| issn | 2299-8993 |
| language | English |
| last_indexed | 2024-04-09T20:55:13Z |
| publishDate | 2023-05-01 |
| publisher | Polish Society of Ecological Engineering (PTIE) |
| record_format | Article |
| series | Journal of Ecological Engineering |
| spelling | doaj.art-4488d2bfb3ed4194993d13dd921fb0332023-03-29T19:59:05ZengPolish Society of Ecological Engineering (PTIE)Journal of Ecological Engineering2299-89932023-05-0124528830510.12911/22998993/161805161805Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals RemovalMukhtar Dhajir Shubber0https://orcid.org/0009-0008-5660-1119Daryoush Yousefi Kebria1Department of Environmental Engineering, Civil Engineering Faculty, Babol Noshirvani University of Technology, IranDepartment of Environmental Engineering, Civil Engineering Faculty, Babol Noshirvani University of Technology, IranThe objectives of this study are the thermal remediation of bentonite waste to convert non-hazardous material, and the use of the obtained thermal recycling bentonite waste (TRBW) as a novel low-cost adsorbent for the removal of heavy metals from aqueous solution using the batch system. The origin of bentonite waste is a by-product from plants of spent engine oil recycling [PSEOR]. It was remediated in two stages, directly burning and in the electrical furnace at 700 Cᵒ for 100 minutes to eliminate oil residues and impurities. The tests of XRD, BET, FTIR, EDX, and SEM were accomplished to identify the chemical and physical characteristics of TRBW. After then, the examination of the ability of TRBW to adsorption of the five heavy metals (Zn, Ni, Cd, Cr, and Pb) with different experimental parameters such as initial concentration, adsorbent dose, temperature, pH, and contact time. Different models of isotherm, kinetic, and thermodynamic were utilized and the results indicate that the nature of heavy metals adsorption onto TRBW was homogeneous. According to the maximum adsorption capacities, the metals ranked as Pb> Cd> Zn> Cr> Ni, and adsorption capacities were 94.97, 73.85, 39.56, 38.34, and 36.33 mg/g, respectively.http://www.jeeng.net/Thermal-Recycling-of-Bentonite-Waste-as-a-Novel-and-a-Low-Cost-Adsorbent-for-Heavy,161805,0,2.htmlheavy metalisothermbentonitethermal remediationhazardous waste |
| spellingShingle | Mukhtar Dhajir Shubber Daryoush Yousefi Kebria Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal Journal of Ecological Engineering heavy metal isotherm bentonite thermal remediation hazardous waste |
| title | Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal |
| title_full | Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal |
| title_fullStr | Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal |
| title_full_unstemmed | Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal |
| title_short | Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal |
| title_sort | thermal recycling of bentonite waste as a novel and a low cost adsorbent for heavy metals removal |
| topic | heavy metal isotherm bentonite thermal remediation hazardous waste |
| url | http://www.jeeng.net/Thermal-Recycling-of-Bentonite-Waste-as-a-Novel-and-a-Low-Cost-Adsorbent-for-Heavy,161805,0,2.html |
| work_keys_str_mv | AT mukhtardhajirshubber thermalrecyclingofbentonitewasteasanovelandalowcostadsorbentforheavymetalsremoval AT daryoushyousefikebria thermalrecyclingofbentonitewasteasanovelandalowcostadsorbentforheavymetalsremoval |