Cargando…

Removal of Cu (II) by calcinated electroplating sludge

Electroplating sludge consists of various heavy metal oxides, which may be utilized as adsorbent to remove Cu (II) present in aqueous environment. This study evaluated the adsorption performance of calcinated electroplating sludge. The adsorption isotherm based on Langmuir equation proved that calci...

Descripción completa

Detalles Bibliográficos
Autores principales: Tran, Thi Huong, Tran, Quang Minh, Le, Thi Vinh, Pham, Thi Thuy, Le, Van Trong, Nguyen, Manh Khai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8176314/
https://www.ncbi.nlm.nih.gov/pubmed/34136684
http://dx.doi.org/10.1016/j.heliyon.2021.e07092
_version_ 1783703236224483328
author Tran, Thi Huong
Tran, Quang Minh
Le, Thi Vinh
Pham, Thi Thuy
Le, Van Trong
Nguyen, Manh Khai
author_facet Tran, Thi Huong
Tran, Quang Minh
Le, Thi Vinh
Pham, Thi Thuy
Le, Van Trong
Nguyen, Manh Khai
author_sort Tran, Thi Huong
collection PubMed
description Electroplating sludge consists of various heavy metal oxides, which may be utilized as adsorbent to remove Cu (II) present in aqueous environment. This study evaluated the adsorption performance of calcinated electroplating sludge. The adsorption isotherm based on Langmuir equation proved that calcinated electroplating sludge had a higher adsorption performance than raw electroplating sludge, with maximum adsorption capacity 92 mg/g and 76.34 mg/g, respectively. Findings of the conducted kinetic study revealed that both surface adsorption and intra-particular diffusion were involved during the adsorption process. Moreover, the comparison between the experimental and calculated data of equilibrium adsorption capacity demonstrated that the pseudo second-order kinetic equation fitted well with 38.31 mg/g of calcinated sludge and 33.66 mg/g of raw sludge, approximate to real-world data. Furthermore, adsorption mechanism research demonstrated that while OH group plays a vital role in raw sample, Ca(2+), in addition to OH group, was involved in ion exchange in calcinated sample.
format Online
Article
Text
id pubmed-8176314
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-81763142021-06-15 Removal of Cu (II) by calcinated electroplating sludge Tran, Thi Huong Tran, Quang Minh Le, Thi Vinh Pham, Thi Thuy Le, Van Trong Nguyen, Manh Khai Heliyon Research Article Electroplating sludge consists of various heavy metal oxides, which may be utilized as adsorbent to remove Cu (II) present in aqueous environment. This study evaluated the adsorption performance of calcinated electroplating sludge. The adsorption isotherm based on Langmuir equation proved that calcinated electroplating sludge had a higher adsorption performance than raw electroplating sludge, with maximum adsorption capacity 92 mg/g and 76.34 mg/g, respectively. Findings of the conducted kinetic study revealed that both surface adsorption and intra-particular diffusion were involved during the adsorption process. Moreover, the comparison between the experimental and calculated data of equilibrium adsorption capacity demonstrated that the pseudo second-order kinetic equation fitted well with 38.31 mg/g of calcinated sludge and 33.66 mg/g of raw sludge, approximate to real-world data. Furthermore, adsorption mechanism research demonstrated that while OH group plays a vital role in raw sample, Ca(2+), in addition to OH group, was involved in ion exchange in calcinated sample. Elsevier 2021-05-26 /pmc/articles/PMC8176314/ /pubmed/34136684 http://dx.doi.org/10.1016/j.heliyon.2021.e07092 Text en © 2021 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Tran, Thi Huong
Tran, Quang Minh
Le, Thi Vinh
Pham, Thi Thuy
Le, Van Trong
Nguyen, Manh Khai
Removal of Cu (II) by calcinated electroplating sludge
title Removal of Cu (II) by calcinated electroplating sludge
title_full Removal of Cu (II) by calcinated electroplating sludge
title_fullStr Removal of Cu (II) by calcinated electroplating sludge
title_full_unstemmed Removal of Cu (II) by calcinated electroplating sludge
title_short Removal of Cu (II) by calcinated electroplating sludge
title_sort removal of cu (ii) by calcinated electroplating sludge
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8176314/
https://www.ncbi.nlm.nih.gov/pubmed/34136684
http://dx.doi.org/10.1016/j.heliyon.2021.e07092
work_keys_str_mv AT tranthihuong removalofcuiibycalcinatedelectroplatingsludge
AT tranquangminh removalofcuiibycalcinatedelectroplatingsludge
AT lethivinh removalofcuiibycalcinatedelectroplatingsludge
AT phamthithuy removalofcuiibycalcinatedelectroplatingsludge
AT levantrong removalofcuiibycalcinatedelectroplatingsludge
AT nguyenmanhkhai removalofcuiibycalcinatedelectroplatingsludge