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The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar

The discharge of wastewater containing hexavalent chromium (Cr(VI)) into the environment is very harmful to living things. Therefore, before effluent that contains Cr(VI) can be discharged into the environment, this toxin should be removed from the contaminated water. In this study, corn stalk bioch...

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Autores principales: Yang, Wenling, Lei, Gao, Quan, Shujing, Zhang, Longfei, Wang, Baitao, Hu, Hong, Li, Liangliang, Ma, Huan, Yin, Chaohui, Feng, Fei, Jing, Yanyan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9657737/
https://www.ncbi.nlm.nih.gov/pubmed/36361074
http://dx.doi.org/10.3390/ijerph192114188
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author Yang, Wenling
Lei, Gao
Quan, Shujing
Zhang, Longfei
Wang, Baitao
Hu, Hong
Li, Liangliang
Ma, Huan
Yin, Chaohui
Feng, Fei
Jing, Yanyan
author_facet Yang, Wenling
Lei, Gao
Quan, Shujing
Zhang, Longfei
Wang, Baitao
Hu, Hong
Li, Liangliang
Ma, Huan
Yin, Chaohui
Feng, Fei
Jing, Yanyan
author_sort Yang, Wenling
collection PubMed
description The discharge of wastewater containing hexavalent chromium (Cr(VI)) into the environment is very harmful to living things. Therefore, before effluent that contains Cr(VI) can be discharged into the environment, this toxin should be removed from the contaminated water. In this study, corn stalk biochar was investigated to evaluate the Cr(VI) removal efficiency from an aqueous solution. The effects of pH (2–10), biochar concentration (0.5 to 10 g/L), Cr(VI) concentration (10–500 mg/L), and contact time (10–1440 min) were studied. The actual experimental value of the Cr(VI) removal efficiency was 28.67%, largely consistent with the predicted model value of 29.31%, under the optimal conditions of a Cr(VI) concentration of 60 g/L, pH 4, contact time of 270 min, and a biochar concentration of 4.5 g/L. A significant interaction between the Cr(VI) concentration and pH was observed, along with significance in the interaction between Cr(VI) concentration and biochar concentration, which had a greater impact on the removal of Cr(VI). Biosorption onto corn stalk biochar is an affordable and economical adsorption process to treat wastewater contaminated with Cr(VI). The aim of this study is to provide data to serve as a basis for future studies on the use of raw agricultural waste to remove Cr(VI).
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spelling pubmed-96577372022-11-15 The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar Yang, Wenling Lei, Gao Quan, Shujing Zhang, Longfei Wang, Baitao Hu, Hong Li, Liangliang Ma, Huan Yin, Chaohui Feng, Fei Jing, Yanyan Int J Environ Res Public Health Article The discharge of wastewater containing hexavalent chromium (Cr(VI)) into the environment is very harmful to living things. Therefore, before effluent that contains Cr(VI) can be discharged into the environment, this toxin should be removed from the contaminated water. In this study, corn stalk biochar was investigated to evaluate the Cr(VI) removal efficiency from an aqueous solution. The effects of pH (2–10), biochar concentration (0.5 to 10 g/L), Cr(VI) concentration (10–500 mg/L), and contact time (10–1440 min) were studied. The actual experimental value of the Cr(VI) removal efficiency was 28.67%, largely consistent with the predicted model value of 29.31%, under the optimal conditions of a Cr(VI) concentration of 60 g/L, pH 4, contact time of 270 min, and a biochar concentration of 4.5 g/L. A significant interaction between the Cr(VI) concentration and pH was observed, along with significance in the interaction between Cr(VI) concentration and biochar concentration, which had a greater impact on the removal of Cr(VI). Biosorption onto corn stalk biochar is an affordable and economical adsorption process to treat wastewater contaminated with Cr(VI). The aim of this study is to provide data to serve as a basis for future studies on the use of raw agricultural waste to remove Cr(VI). MDPI 2022-10-30 /pmc/articles/PMC9657737/ /pubmed/36361074 http://dx.doi.org/10.3390/ijerph192114188 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Wenling
Lei, Gao
Quan, Shujing
Zhang, Longfei
Wang, Baitao
Hu, Hong
Li, Liangliang
Ma, Huan
Yin, Chaohui
Feng, Fei
Jing, Yanyan
The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar
title The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar
title_full The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar
title_fullStr The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar
title_full_unstemmed The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar
title_short The Removal of Cr(VI) from Aqueous Solutions with Corn Stalk Biochar
title_sort removal of cr(vi) from aqueous solutions with corn stalk biochar
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9657737/
https://www.ncbi.nlm.nih.gov/pubmed/36361074
http://dx.doi.org/10.3390/ijerph192114188
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