Study of atrazine removal by an adsorbent synthesised by water hyacinth
In this work, water hyacinth was selected as a raw materials for synthesising the activated carbon used for removing atrazine, one of the most famous herbicides used in Thailand, from water. Three different treating methods were performed in order to attain the best adsorbent; untreated (AC), HCl-tr...
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doaj-f66ad5bbbdc04bc8bd3df4be1f3fce2e2021-04-02T12:20:38ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011920303310.1051/matecconf/201819203033matecconf_iceast2018_03033Study of atrazine removal by an adsorbent synthesised by water hyacinthNuntamongkol Sitanan0Deetae Pawinee1Wongpromrat Patthranit2Chemical Engineering Department, Faculty of Engineering, King Mongkut’s Institute of TechnologyFood Fermentation Department, Faulty of Agro-Industry, King Mongkut’s Institute of TechnologyChemical Engineering Department, Faculty of Engineering, King Mongkut’s Institute of TechnologyIn this work, water hyacinth was selected as a raw materials for synthesising the activated carbon used for removing atrazine, one of the most famous herbicides used in Thailand, from water. Three different treating methods were performed in order to attain the best adsorbent; untreated (AC), HCl-treated (HCl-AC) and NaOH-treated (NaOH-AC) activated carbons. After pyrolysis, NaOH-AC became ash, so it was not suitable for using as an adsorbent. Among these, HCl-AC was the best adsorbent for removing atrazine from water because of its highest surface areas. The adsorption experiments using AC and HCl-AC as the adsorbents confirmed that the adsorption efficiency of HCl-AC was higher than that of AC. In addition, the adsorption isotherm of HCl-AC was investigated by varying the atrazine initial concentration in the range of 3-15 ppm. The results best fitted with Langmuir isotherm that means this adsorption phenomenon was chemisorption with the maximum adsorbent capacity of 24.510 mg/g, Langmuir isotherm constant of 10.462 L/mg and the separation factor of 0.006 indicating that the equilibrium sorption of atrazine by HCl-AC was favourable.https://www.matec-conferences.org/articles/matecconf/pdf/2018/51/matecconf_iceast2018_03033.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nuntamongkol Sitanan Deetae Pawinee Wongpromrat Patthranit |
spellingShingle |
Nuntamongkol Sitanan Deetae Pawinee Wongpromrat Patthranit Study of atrazine removal by an adsorbent synthesised by water hyacinth MATEC Web of Conferences |
author_facet |
Nuntamongkol Sitanan Deetae Pawinee Wongpromrat Patthranit |
author_sort |
Nuntamongkol Sitanan |
title |
Study of atrazine removal by an adsorbent synthesised by water hyacinth |
title_short |
Study of atrazine removal by an adsorbent synthesised by water hyacinth |
title_full |
Study of atrazine removal by an adsorbent synthesised by water hyacinth |
title_fullStr |
Study of atrazine removal by an adsorbent synthesised by water hyacinth |
title_full_unstemmed |
Study of atrazine removal by an adsorbent synthesised by water hyacinth |
title_sort |
study of atrazine removal by an adsorbent synthesised by water hyacinth |
publisher |
EDP Sciences |
series |
MATEC Web of Conferences |
issn |
2261-236X |
publishDate |
2018-01-01 |
description |
In this work, water hyacinth was selected as a raw materials for synthesising the activated carbon used for removing atrazine, one of the most famous herbicides used in Thailand, from water. Three different treating methods were performed in order to attain the best adsorbent; untreated (AC), HCl-treated (HCl-AC) and NaOH-treated (NaOH-AC) activated carbons. After pyrolysis, NaOH-AC became ash, so it was not suitable for using as an adsorbent. Among these, HCl-AC was the best adsorbent for removing atrazine from water because of its highest surface areas. The adsorption experiments using AC and HCl-AC as the adsorbents confirmed that the adsorption efficiency of HCl-AC was higher than that of AC. In addition, the adsorption isotherm of HCl-AC was investigated by varying the atrazine initial concentration in the range of 3-15 ppm. The results best fitted with Langmuir isotherm that means this adsorption phenomenon was chemisorption with the maximum adsorbent capacity of 24.510 mg/g, Langmuir isotherm constant of 10.462 L/mg and the separation factor of 0.006 indicating that the equilibrium sorption of atrazine by HCl-AC was favourable. |
url |
https://www.matec-conferences.org/articles/matecconf/pdf/2018/51/matecconf_iceast2018_03033.pdf |
work_keys_str_mv |
AT nuntamongkolsitanan studyofatrazineremovalbyanadsorbentsynthesisedbywaterhyacinth AT deetaepawinee studyofatrazineremovalbyanadsorbentsynthesisedbywaterhyacinth AT wongpromratpatthranit studyofatrazineremovalbyanadsorbentsynthesisedbywaterhyacinth |
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