Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide
Glyphosate [N-(phosphonomethyl)-glycine], an organophosphate broad-spectrum herbicide, is a serious environmental contaminant that poses a significant threat to humans. It can be detected as a contaminant in water; thus, effective procedures for its removal are urgently required. The present study i...
| Main Authors: | , , , , , |
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| Format: | Article |
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Multidisciplinary Digital Publishing Institute
2022
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| Online Access: | http://psasir.upm.edu.my/id/eprint/101988/ |
| _version_ | 1848863685505712128 |
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| author | Li, Fan Shean, Thomas Yaw Choong Soltani, Soroush Abdullah, Luqman Chuah Md. Jamil, Siti Nurul Ain Amerhaider Nuar, Nurul Nazihah |
| author_facet | Li, Fan Shean, Thomas Yaw Choong Soltani, Soroush Abdullah, Luqman Chuah Md. Jamil, Siti Nurul Ain Amerhaider Nuar, Nurul Nazihah |
| author_sort | Li, Fan |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Glyphosate [N-(phosphonomethyl)-glycine], an organophosphate broad-spectrum herbicide, is a serious environmental contaminant that poses a significant threat to humans. It can be detected as a contaminant in water; thus, effective procedures for its removal are urgently required. The present study investigated the performance of glyphosate removal from aqueous solutions using a Fenton-like system. Calcium peroxide (CaO2) was used as a source of hydroxyl free radicals with Fe2+ as a catalyst to trigger the Fenton reaction. Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), and potassium permanganate titration were carried out for characterization of calcium peroxide. The effect of operating parameters such as pH, the molar ratio of Ca2+:Fe2+, the initial dosage of calcium peroxide, and the initial glyphosate concentration on the removal efficiency was studied, respectively. The maximum total phosphorus (TP) and chemical oxygen demand (COD) removal were 94.50% and 68.60%, respectively, within 120 min under optimal conditions (pH = 3.0, initial glyphosate concentration = 50 ppm, initial CaO2 dosage = 0.5 g, molar ratio of Ca2+:Fe2+ = 6, room temperature). Experimental data were analyzed using zero-order, first-order, second-order, and Behnajady, Modirshahla, and Ghanbary (BMG) kinetics models. The degradation kinetics of glyphosate could be mostly fitted with the BMG kinetics model. This study demonstrated that calcium peroxide could be considered an effective oxidant for glyphosate wastewater treatment. |
| first_indexed | 2025-11-15T13:36:51Z |
| format | Article |
| id | upm-101988 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:36:51Z |
| publishDate | 2022 |
| publisher | Multidisciplinary Digital Publishing Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1019882023-06-15T21:29:21Z http://psasir.upm.edu.my/id/eprint/101988/ Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide Li, Fan Shean, Thomas Yaw Choong Soltani, Soroush Abdullah, Luqman Chuah Md. Jamil, Siti Nurul Ain Amerhaider Nuar, Nurul Nazihah Glyphosate [N-(phosphonomethyl)-glycine], an organophosphate broad-spectrum herbicide, is a serious environmental contaminant that poses a significant threat to humans. It can be detected as a contaminant in water; thus, effective procedures for its removal are urgently required. The present study investigated the performance of glyphosate removal from aqueous solutions using a Fenton-like system. Calcium peroxide (CaO2) was used as a source of hydroxyl free radicals with Fe2+ as a catalyst to trigger the Fenton reaction. Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), and potassium permanganate titration were carried out for characterization of calcium peroxide. The effect of operating parameters such as pH, the molar ratio of Ca2+:Fe2+, the initial dosage of calcium peroxide, and the initial glyphosate concentration on the removal efficiency was studied, respectively. The maximum total phosphorus (TP) and chemical oxygen demand (COD) removal were 94.50% and 68.60%, respectively, within 120 min under optimal conditions (pH = 3.0, initial glyphosate concentration = 50 ppm, initial CaO2 dosage = 0.5 g, molar ratio of Ca2+:Fe2+ = 6, room temperature). Experimental data were analyzed using zero-order, first-order, second-order, and Behnajady, Modirshahla, and Ghanbary (BMG) kinetics models. The degradation kinetics of glyphosate could be mostly fitted with the BMG kinetics model. This study demonstrated that calcium peroxide could be considered an effective oxidant for glyphosate wastewater treatment. Multidisciplinary Digital Publishing Institute 2022-10-10 Article PeerReviewed Li, Fan and Shean, Thomas Yaw Choong and Soltani, Soroush and Abdullah, Luqman Chuah and Md. Jamil, Siti Nurul Ain and Amerhaider Nuar, Nurul Nazihah (2022) Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide. Processes, 10 (10). art. no. 2045. pp. 1-15. ISSN 2227-9717 https://www.mdpi.com/2227-9717/10/10/2045 10.3390/pr10102045 |
| spellingShingle | Li, Fan Shean, Thomas Yaw Choong Soltani, Soroush Abdullah, Luqman Chuah Md. Jamil, Siti Nurul Ain Amerhaider Nuar, Nurul Nazihah Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide |
| title | Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide |
| title_full | Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide |
| title_fullStr | Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide |
| title_full_unstemmed | Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide |
| title_short | Investigation of glyphosate removal from aqueous solutions using Fenton-like system based on calcium peroxide |
| title_sort | investigation of glyphosate removal from aqueous solutions using fenton-like system based on calcium peroxide |
| url | http://psasir.upm.edu.my/id/eprint/101988/ http://psasir.upm.edu.my/id/eprint/101988/ http://psasir.upm.edu.my/id/eprint/101988/ |