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dc.creatorDuan, Runbin
dc.creatorFedler, Clifford B.
dc.creatorJiao, Xiaofei
dc.date.accessioned2021-11-23T18:14:35Z
dc.date.available2021-11-23T18:14:35Z
dc.date.issued2021
dc.identifier.citationRunbin Duan, Clifford B. Fedler, Xiaofei Jiao; Adsorption of pyridine from aqueous solutions onto polyaluminium chloride and anionic polyacrylamide water treatment residuals. Water Sci Technol 1 April 2021; 83 (7): 1753–1763. doi: https://doi.org/10.2166/wst.2021.082en_US
dc.identifier.urihttps://doi.org/10.2166/wst.2021.082
dc.identifier.urihttps://hdl.handle.net/2346/88314
dc.descriptionThis is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/).en_US
dc.description.abstractThe adsorption performance of pyridine onto polyaluminium chloride (PAC) and anionic polyacrylamide (APAM) water treatment residuals (WTRs) was investigated by batch experiments. This study confirmed the assumption that PAC–APAM WTRs had the ability to remove pyridine. The non-linear Dubinin–Radushkevich model and non-linear Freundlich model better described the isotherms, indicating that the adsorption was a chemically controlled multilayer process. The pyridine adsorption rate was simultaneously controlled by external film diffusion and intraparticle diffusion. The adsorption of pyridine was an endothermic reaction with randomness increase. The pyridine adsorption decreased with pH increase. Pyridine removal was observed to be a linear increase from 6.16% to 96.18%, with the increase of dosage from 2.5 g/L to 15 g/L. The Langmuir maximum adsorption capacity was 3.605 mg/g while the theoretical isotherm saturation capacity was 9.823 mg/g. Therefore, PAC–APAM WTRs recycled into contaminated soils for remediation is expected to be an innovative alternative disposal method. More research is recommended in the future to identify detailed adsorption mechanisms and the most appropriate mixing ratio of PAC–APAM WTRs to contaminated soils under various climatic conditions.en_US
dc.language.isoengen_US
dc.subjectAdsorption Isothermsen_US
dc.subjectAnionic Polyacrylamideen_US
dc.subjectD-R Modelen_US
dc.subjectPolyaluminium Chlorideen_US
dc.subjectPyridineen_US
dc.subjectSoil Remediationen_US
dc.titleAdsorption of pyridine from aqueous solutions onto polyaluminium chloride and anionic polyacrylamide water treatment residualsen_US
dc.typeArticleen_US


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