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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.6
- 수록면
- 270 - 284 (15page)
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The present study deals with the utilization of waste biomass of Tectona plant refuse to synthesize the monometallic and bimetallic biochar and to examine their performance for As(III) removal from aqueous solution as well as from groundwater. The biochar materials were characterized using Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Particle Size Analysis (PSA), zeta potential and pH<SUB>ZPC</SUB>. The enhanced removal of As(III) was observed with Fe/Mn-TB (bimetallic) which was greater than Fe-TB (monometallic) biochar. The highest adsorption was 90.35 % and 84.85 % achieved with Fe/Mn-TB and Fe-TB, respectively, at 0.5 mg/L As initial concentration 0.5 mg/L. The adsorption capacity was found to be 0.91 mg/g and 1.89 mg/g, respectively, by Fe-TB and Fe/Mn-TB. The adsorption process of As(III) has good compliance with pseudo-second order kinetics as well as Freundlich isotherm model. As(III) was adsorbed by the Fe-TB and Fe/Mn-TB possibly by electrostatic attraction, H-bond formation and complexation mechanism. Both these materials successfully removed As(III) from aqueous solution as well as from groundwater thus it can be used for the eradication of As(III) from the affected areas by utilizing them as an adsorbent in continuous flow system.
목차
ABSTRACT
1. Introduction
2. Materials and methods
3. Result and Discussions
4. Proposed mechanism of As adsorption on to Fe-TB and Fe/Mn-TB
5. Conclusions
Reference
참고문헌 (61)
참고문헌 신청
Alchouron J, Navarathna C, Chludil HD, Dewage NB, Perez F, Pittman Jr CU, Vega AS, Mlsna, TE. Assessing South American Guadua chacoensis bamboo biochar and Fe3O4 nanoparticle dispersed analogues for aqueous arsenic (V) remediation. Sci. Total Environ. 202
Kumar A, Ghosh AK. Assessment of Arsenic Contamination in Groundwater and Affected Population of Bihar. Arsenic Toxicity: Challenges and Solutions, 2021;165.
Shukla A, Awasthi S, Chauhan R, Srivastava S. The Status of Arsenic Contamination in India. In: Srivastava S. (eds) Arsenic in Drinking Water and Food. Springer, Singapore, 2020. https://doi.org/10.1007/978-981-13-8587-2-1
Cuong DV, Wu PC, Chen LI, Hou CH. Active MnO2/biochar composite for efficient As (III) removal: Insight into the mechanisms of redox transformation and adsorption. Water Res. 2021;188:116495. https://doi.org/10.1016/j.watres.2020.116495
Postma D, Pham TKT, Sø HU, Hoang VH, Vi ML, Nguyen TT, Larsen F, Pham HV, Jakobsen R. A model for the evolution in water chemistry of an arsenic contaminated aquifer over the last 6000 Years, red river floodplain, Vietnam. Geochim. Cosmochim. Acta. 2016;1
Kumar A, Ghosh AK. Assessment of Arsenic Contamination in Groundwater and Affected Population of Bihar. Arsenic Toxicity: Challenges and Solutions, 2021;165.
Shukla A, Awasthi S, Chauhan R, Srivastava S. The Status of Arsenic Contamination in India. In: Srivastava S. (eds) Arsenic in Drinking Water and Food. Springer, Singapore, 2020. https://doi.org/10.1007/978-981-13-8587-2-1
Cuong DV, Wu PC, Chen LI, Hou CH. Active MnO2/biochar composite for efficient As (III) removal: Insight into the mechanisms of redox transformation and adsorption. Water Res. 2021;188:116495. https://doi.org/10.1016/j.watres.2020.116495
Postma D, Pham TKT, Sø HU, Hoang VH, Vi ML, Nguyen TT, Larsen F, Pham HV, Jakobsen R. A model for the evolution in water chemistry of an arsenic contaminated aquifer over the last 6000 Years, red river floodplain, Vietnam. Geochim. Cosmochim. Acta. 2016;1
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