Functionalized cellulose to remove surfactants from cosmetic products in wastewater.

Autor: Kim S; Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea., Seo AY; Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea., Lee TG; Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea. Electronic address: teddy.lee@yonsei.ac.kr.
Jazyk: angličtina
Zdroj: Carbohydrate polymers [Carbohydr Polym] 2020 May 15; Vol. 236, pp. 116010. Date of Electronic Publication: 2020 Feb 14.
DOI: 10.1016/j.carbpol.2020.116010
Abstrakt: A flocculant composed of paper mulberry dicarboxylic cellulose (PM-DCC) made from using paper mulberry (Broussonetia kazinoki Siebold and Zucc.) has been developed to reduce the amount of inorganic coagulants needed to remove surfactants in wastewater. The characteristics of PM and soda pulp were determined according to the degree of polymerization, α-cellulose, lignin, free sugar, and extract contents. FTIR, XRD, the aldehyde content, the carboxyl content and coagulant-flocculation experiments were conducted to confirm the properties of PM-DCC and paper mulberry dialdehyde cellulose (PM-DAC). A dramatic removal efficiency (95.62 %) was revealed when 0.3 % PM-DCC was added into a linear alkylbenzene sulfonate (LAS) solution with 1% FeCl 3 ·6H 2 O at pH 2. This means that PM-DCC contributes to both a lower amount of inorganic coagulant needed and a reduction of water pollution by an ecofriendly method.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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