Study on the Adsorption of Nickel (II) in Water by Modified Dried Duckweed

The paper uses dry duckweed before modification and dry duckweed modified with formaldehyde and concentrated sulfuric acid as adsorbents to adsorb and remove nickel ions in water. The results show that the removal rate increases with the increase of temperature. When the reaction time is 70 min, the...

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Main Authors: Qu Yanping, Li Xinjun, Lin Lin, Wang Shouge, Guo Min, Dong Wenchan
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/21/e3sconf_aeecs2021_03083.pdf
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author Qu Yanping
Li Xinjun
Lin Lin
Wang Shouge
Guo Min
Dong Wenchan
author_facet Qu Yanping
Li Xinjun
Lin Lin
Wang Shouge
Guo Min
Dong Wenchan
author_sort Qu Yanping
collection DOAJ
description The paper uses dry duckweed before modification and dry duckweed modified with formaldehyde and concentrated sulfuric acid as adsorbents to adsorb and remove nickel ions in water. The results show that the removal rate increases with the increase of temperature. When the reaction time is 70 min, the concentration of nickel is 20 mg/L, and the dosage is 0.05 g, the removal rate of nickel ion by the duckweed adsorbent is 35.01%. When the reaction time is 30 min, the concentration of nickel is 20 mg/L, and the dosage of modified duckweed is 0.1 g, the removal rate of nickel ion by the modified duckweed adsorbent is 44.85%. The adsorption effect of the modified adsorbent is obviously improved, which provides a basis for the application of duckweed in the adsorption of nickel - containing wastewater.
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spelling doaj.art-371128600c334cf78422e9a740ca98942022-12-21T22:33:25ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012450308310.1051/e3sconf/202124503083e3sconf_aeecs2021_03083Study on the Adsorption of Nickel (II) in Water by Modified Dried DuckweedQu Yanping0Li Xinjun1Lin Lin2Wang Shouge3Guo Min4Dong Wenchan5School of Chemistry and Biological Engineering, Qilu University of TechnologySchool of Chemistry and Biological Engineering, Qilu University of TechnologySchool of Chemistry and Biological Engineering, Qilu University of TechnologySchool of Chemistry and Biological Engineering, Qilu University of TechnologySchool of Chemistry and Biological Engineering, Qilu University of TechnologySchool of Chemistry and Biological Engineering, Qilu University of TechnologyThe paper uses dry duckweed before modification and dry duckweed modified with formaldehyde and concentrated sulfuric acid as adsorbents to adsorb and remove nickel ions in water. The results show that the removal rate increases with the increase of temperature. When the reaction time is 70 min, the concentration of nickel is 20 mg/L, and the dosage is 0.05 g, the removal rate of nickel ion by the duckweed adsorbent is 35.01%. When the reaction time is 30 min, the concentration of nickel is 20 mg/L, and the dosage of modified duckweed is 0.1 g, the removal rate of nickel ion by the modified duckweed adsorbent is 44.85%. The adsorption effect of the modified adsorbent is obviously improved, which provides a basis for the application of duckweed in the adsorption of nickel - containing wastewater.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/21/e3sconf_aeecs2021_03083.pdf
spellingShingle Qu Yanping
Li Xinjun
Lin Lin
Wang Shouge
Guo Min
Dong Wenchan
Study on the Adsorption of Nickel (II) in Water by Modified Dried Duckweed
E3S Web of Conferences
title Study on the Adsorption of Nickel (II) in Water by Modified Dried Duckweed
title_full Study on the Adsorption of Nickel (II) in Water by Modified Dried Duckweed
title_fullStr Study on the Adsorption of Nickel (II) in Water by Modified Dried Duckweed
title_full_unstemmed Study on the Adsorption of Nickel (II) in Water by Modified Dried Duckweed
title_short Study on the Adsorption of Nickel (II) in Water by Modified Dried Duckweed
title_sort study on the adsorption of nickel ii in water by modified dried duckweed
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/21/e3sconf_aeecs2021_03083.pdf
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AT linlin studyontheadsorptionofnickeliiinwaterbymodifieddriedduckweed
AT wangshouge studyontheadsorptionofnickeliiinwaterbymodifieddriedduckweed
AT guomin studyontheadsorptionofnickeliiinwaterbymodifieddriedduckweed
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