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Characterization of a chitosan biopolymer and arsenate removal for drinking water treatment
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Mark- och vattenteknik. (KTH-International Groundwater Arsenic Research Group,)
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik. (KTH-International Groundwater Arsenic Research Group,)ORCID-id: 0000-0003-4350-9950
2014 (engelsk)Inngår i: One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment, CRC Press, 2014, s. 745-747Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Chitosan biopolymer with a deacetylation degree of 85%, was assessed for its capability to adsorb As(V) from drinking water by batch experiments. To characterize the chitosan biopolymer, chitosan was analyzed by FTIR and SEM. The results showed that chitosan is an effective and promising sorbent for As(V) from drinking water. From the batch tests, results showed a maximum adsorption of 355 μg/L of As(V) with 1.18 μg g-1 adsorption capacity at pH 6. The kinetic data, obtained at pH 6 could be fitted with pseudo-second order equation (adsorption capacity: 0.923 μg g-1) and the process was suitably described by a Freundlich (R2 = 0.9933) model than by a Langmuir model (R2 = 0.9741). The results above indicated that chitosan is a very favorable sorbent for As(V) removal from aqueous solution.

sted, utgiver, år, opplag, sider
CRC Press, 2014. s. 745-747
Emneord [en]
Acetylation, Arsenic, Biomolecules, Chitosan, Adsorption capacities, Arsenate removal, Batch experiments, Batch tests, Deacetylation degree, Kinetic data, Langmuir models, Pseudo second order
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Identifikatorer
URN: urn:nbn:se:kth:diva-157896Scopus ID: 2-s2.0-84907339239ISBN: 978-113800141-1 (tryckt)OAI: oai:DiVA.org:kth-157896DiVA, id: diva2:772689
Konferanse
5th International Congress on Arsenic in the Environment, As 2014, 11 May 2014 through 16 May 2014, Buenos Aires, Argentina
Merknad

QC 20141217

Tilgjengelig fra: 2014-12-17 Laget: 2014-12-17 Sist oppdatert: 2014-12-17bibliografisk kontrollert

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