Adsorption of vanadium with amorphous hydrated chromium oxide
Vanadium is recognized as a potentially dangerous pollutant following closely behind lead, mercury and arsenic. Vanadium removal from wastewater prior to discharge is essential. In this work, an amorphous hydrated chromium oxide was prepared and its vanadium adsorption ability studied. As prepared,...
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IWA Publishing
2021
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oai:doaj.org-article:cb19dd77dee04dfbbe8399c6da839c952021-11-05T21:17:22ZAdsorption of vanadium with amorphous hydrated chromium oxide1751-231X10.2166/wpt.2021.078https://doaj.org/article/cb19dd77dee04dfbbe8399c6da839c952021-10-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/4/1410https://doaj.org/toc/1751-231XVanadium is recognized as a potentially dangerous pollutant following closely behind lead, mercury and arsenic. Vanadium removal from wastewater prior to discharge is essential. In this work, an amorphous hydrated chromium oxide was prepared and its vanadium adsorption ability studied. As prepared, the hydrated oxide showed high efficiency in vanadium adsorption – e.g., from 300 to 0.75 mg-V·L−1. The effects of pH, adsorbent dosage, temperature, adsorption time and the presence of other ions on the vanadium removal rate were investigated, and optimal parameters determined. Dynamic adsorption results showed that pseudo-second-order kinetics could be used to interpret the kinetic curve and that the process was that of chemisorption. The Langmuir isotherm was found to fit the adsorption behavior well. HIGHLIGHTS An amorphous hydrated chromium oxide was used for vanadium adsorption.; The concentration of vanadium ions could be decreased from 300 to 0.75 mg·L−1.; Effects of parameters and adsoption kinetics and isotherms were studied.; Common co-existing ions show little influence on the adsorption efficiency.;Hualin LiHongling ZhangMinting LuoYuming DongHongbin XuXichuan ChengZaihua CaiIWA Publishingarticleadsorptionhydrated chromium oxidevanadium-containing wastewatervanadium removalEnvironmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 4, Pp 1410-1420 (2021) |
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adsorption hydrated chromium oxide vanadium-containing wastewater vanadium removal Environmental technology. Sanitary engineering TD1-1066 |
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adsorption hydrated chromium oxide vanadium-containing wastewater vanadium removal Environmental technology. Sanitary engineering TD1-1066 Hualin Li Hongling Zhang Minting Luo Yuming Dong Hongbin Xu Xichuan Cheng Zaihua Cai Adsorption of vanadium with amorphous hydrated chromium oxide |
description |
Vanadium is recognized as a potentially dangerous pollutant following closely behind lead, mercury and arsenic. Vanadium removal from wastewater prior to discharge is essential. In this work, an amorphous hydrated chromium oxide was prepared and its vanadium adsorption ability studied. As prepared, the hydrated oxide showed high efficiency in vanadium adsorption – e.g., from 300 to 0.75 mg-V·L−1. The effects of pH, adsorbent dosage, temperature, adsorption time and the presence of other ions on the vanadium removal rate were investigated, and optimal parameters determined. Dynamic adsorption results showed that pseudo-second-order kinetics could be used to interpret the kinetic curve and that the process was that of chemisorption. The Langmuir isotherm was found to fit the adsorption behavior well. HIGHLIGHTS
An amorphous hydrated chromium oxide was used for vanadium adsorption.;
The concentration of vanadium ions could be decreased from 300 to 0.75 mg·L−1.;
Effects of parameters and adsoption kinetics and isotherms were studied.;
Common co-existing ions show little influence on the adsorption efficiency.; |
format |
article |
author |
Hualin Li Hongling Zhang Minting Luo Yuming Dong Hongbin Xu Xichuan Cheng Zaihua Cai |
author_facet |
Hualin Li Hongling Zhang Minting Luo Yuming Dong Hongbin Xu Xichuan Cheng Zaihua Cai |
author_sort |
Hualin Li |
title |
Adsorption of vanadium with amorphous hydrated chromium oxide |
title_short |
Adsorption of vanadium with amorphous hydrated chromium oxide |
title_full |
Adsorption of vanadium with amorphous hydrated chromium oxide |
title_fullStr |
Adsorption of vanadium with amorphous hydrated chromium oxide |
title_full_unstemmed |
Adsorption of vanadium with amorphous hydrated chromium oxide |
title_sort |
adsorption of vanadium with amorphous hydrated chromium oxide |
publisher |
IWA Publishing |
publishDate |
2021 |
url |
https://doaj.org/article/cb19dd77dee04dfbbe8399c6da839c95 |
work_keys_str_mv |
AT hualinli adsorptionofvanadiumwithamorphoushydratedchromiumoxide AT honglingzhang adsorptionofvanadiumwithamorphoushydratedchromiumoxide AT mintingluo adsorptionofvanadiumwithamorphoushydratedchromiumoxide AT yumingdong adsorptionofvanadiumwithamorphoushydratedchromiumoxide AT hongbinxu adsorptionofvanadiumwithamorphoushydratedchromiumoxide AT xichuancheng adsorptionofvanadiumwithamorphoushydratedchromiumoxide AT zaihuacai adsorptionofvanadiumwithamorphoushydratedchromiumoxide |
_version_ |
1718444008542306304 |