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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.4
- 수록면
- 58 - 78 (21page)
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초록· 키워드
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In this study, Mg/Fe-doped biochar (MFDB) was prepared using the impregnation pyrolysis method, and its preparation was optimized using response surface methodology (RSM). The competitive adsorption between dissolved organic matter (DOM) and phosphorus was also investigated. The best adsorption capacity was obtained with an ㎎ impregnation ratio of 3.17:1 (Mg: biomass, g:g), Fe impregnation ratio of 1.3:1 (Fe: biomass, g:g), and pyrolysis temperature of 491℃. The adsorption capacity of MFDB for phosphorus was 179.21 ㎎/g at 40℃, an initial phosphate concentration of 50 ㎎/g and pH 4. The phosphate adsorption by MFDB conformed to a pseudo-primary and secondary adsorption kinetic model, proving the coexistence of physical and chemical adsorption. The adsorption mechanisms, including ligand exchange, electrostatic interaction, and complexation reaction were revealed. As the pH increased, it weakened the electrostatic interaction of phosphate by MFDB and the ligand exchange between phosphate and OH⁻. When the pH was less than 3, the metal oxide dissolved. For pH values exceeding, OH⁻ competed with phosphate for adsorptio, which also weakened the complexation of phosphate and MFDB. The DOM in domestic wastewater had a slight effect on the phosphorus adsorption. The phosphorus removal rates were closely related to lignin-like humic acid and tryptophan.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (82)
참고문헌 신청
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Hylander LD, Kietlińska A, Renman G, et al. Phosphorus retention in filter materials for wastewater treatment and its subsequent suitability for plant production. Bioresour. Technol. 2006;97:914-921. https://doi.org/10.1016/j.biortech.2005.04.026.
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Kilpimaa S, Runtti H, Kangas T, et al. Physical activation of carbon residue from biomass gasification: Novel sorbent for the removal of phosphates and nitrates from aqueous solution. J. Ind. Eng. Chem. 2015;21:1354-1364. https://doi.org/10.1016/j.jiec.20
Saleh AAS, Ibrahim N, Awang NR. Characteristics study of ammonia-n and phosphorus in sewage wastewater effluent: a case study of Alkhumrah, Jeddah Wastewater Treatment Plant. IOP Conf. Ser. Earth Environ. Sci. 2021;842:012034. https://doi.org/10.1088/1755
Hylander LD, Kietlińska A, Renman G, et al. Phosphorus retention in filter materials for wastewater treatment and its subsequent suitability for plant production. Bioresour. Technol. 2006;97:914-921. https://doi.org/10.1016/j.biortech.2005.04.026.
Wang HJ, Wang HZ. Mitigation of lake eutrophication: Loosen nitrogen control and focus on phosphorus abatement. Prog. Nat. Sci. 2009;19:1445-1451. https://doi.org/10.1016/j.pnsc.2009. 03.009.
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