A1 Journal article (refereed)
Bisphenol A removal from water by biomass-based carbon : Isotherms, kinetics and thermodynamics studies (2020)

Juhola, R., Runtti, H., Kangas, T., Hu, T., Romar, H., & Tuomikoski, S. (2020). Bisphenol A removal from water by biomass-based carbon : Isotherms, kinetics and thermodynamics studies. Environmental Technology, 41(8), 971-980. https://doi.org/10.1080/09593330.2018.1515990

JYU authors or editors

Publication details

All authors or editors: Juhola, Riikka; Runtti, Hanna; Kangas, Teija; Hu, Tao; Romar, Henrik; Tuomikoski, Sari

Journal or series: Environmental Technology

ISSN: 0959-3330

eISSN: 1479-487X

Publication year: 2020

Volume: 41

Issue number: 8

Pages range: 971-980

Publisher: Taylor & Francis

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1080/09593330.2018.1515990

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68057

Publication is parallel published: http://urn.fi/urn:nbn:fi-fe2018110547300

Abstract

Biomass-based carbon was modified and used as an efficient bisphenol A (BPA) sorbent. The simple and environmentally friendly modification method produced sorbent with a capacity of 41.5 mg/g. The raw material was modified with FeCl3 (Fe-CR), treated with hydrochloric acid (H-CR) or modified with CaCl2 (Ca-CR). Batch sorption experiments were performed to evaluate the effects of the initial pH, sorbent dosage, temperature, and contact time on BPA removal. BPA removal with modified carbons was notably higher than that with unmodified carbon. All sorbent materials exhibited very high sorption capacities and compared favourably to materials reported in the literature. Several isotherms were applied to describe the experimental results of Fe-CR, H-CR, and Ca-CR modified carbon residues and the Sips model showed the best fit for all sorbents. Kinetic studies for the best sorbent material (Fe-CR) showed that the sorption process follows Elovich kinetics. Desorption cycles were implemented, and sorption capacity remained with three cycles.

Keywords: biochar; activated carbon; sorption; harmful substances; bisphenol A

Free keywords: biomass-based carbon; environmentally friendly

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2020

JUFO rating: 1