Pine bark as bio-adsorbent for Cd, Cu, Ni, Pb and Zn: batch-type and stirred flow chamber experiments

L. Cutillas-Barreiro; L. Ansias-Manso; David Fernandez Calviño; M. Arias-Estévez; J.C. Nóvoa-Muñoz; M.J. Fernández-Sanjurjo; E. Álvarez-Rodríguez; A. Núñez-Delgado

doi:10.1016/j.jenvman.2014.06.008

Pine bark as bio-adsorbent for Cd, Cu, Ni, Pb and Zn: batch-type and stirred flow chamber experiments

L. Cutillas-Barreiro, L. Ansias-Manso, David Fernandez Calviño, M. Arias-Estévez^*, J.C. Nóvoa-Muñoz, M.J. Fernández-Sanjurjo, E. Álvarez-Rodríguez, A. Núñez-Delgado

^*Corresponding author af dette arbejde

Microbial Ecology and Biotechnology

57 Citationer (Scopus)

Abstract

The objective of this work was to determine the retention of five metals on pine bark using stirred flow and batch-type experiments. Resulting from batch-type kinetic experiments, adsorption was rapid, with no significant differences for the various contact times. Adsorption was between 98 and 99% for Pb²⁺, 83-84% for Cu²⁺, 78-84% for Cd²⁺, 77-83% for Zn²⁺, and 70-75% for Ni²⁺, and it was faster for low concentrations, with Pb suffering the highest retention, followed by Cu, Cd, Ni and Zn. The fitting to the Freundlich and Langmuir models was satisfactory. Desorption increased in parallel to the added concentrations, with Pb always showing the lowest levels. Stirred flow chamber experiments showed strong hysteresis for Pb and Cu, sorption being mostly irreversible. The differences affecting the studied heavy metals are mainly due to different affinity for the adsorption sites. Pine bark can be used to effectively remove Pb and Cu from polluted environments.

Originalsprog	Engelsk
Tidsskrift	Journal of Environmental Management
Vol/bind	144
Sider (fra-til)	258-264
Antal sider	7
ISSN	0301-4797
DOI	https://doi.org/10.1016/j.jenvman.2014.06.008
Status	Udgivet - 2014

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10.1016/j.jenvman.2014.06.008

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Cutillas-Barreiro, L., Ansias-Manso, L., Fernandez Calviño, D., Arias-Estévez, M., Nóvoa-Muñoz, J. C., Fernández-Sanjurjo, M. J., Álvarez-Rodríguez, E., & Núñez-Delgado, A. (2014). Pine bark as bio-adsorbent for Cd, Cu, Ni, Pb and Zn: batch-type and stirred flow chamber experiments. Journal of Environmental Management, 144, 258-264. https://doi.org/10.1016/j.jenvman.2014.06.008

Cutillas-Barreiro, L, Ansias-Manso, L, Fernandez Calviño, D, Arias-Estévez, M, Nóvoa-Muñoz, JC, Fernández-Sanjurjo, MJ, Álvarez-Rodríguez, E & Núñez-Delgado, A 2014, 'Pine bark as bio-adsorbent for Cd, Cu, Ni, Pb and Zn: batch-type and stirred flow chamber experiments', Journal of Environmental Management, bind 144, s. 258-264. https://doi.org/10.1016/j.jenvman.2014.06.008

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title = "Pine bark as bio-adsorbent for Cd, Cu, Ni, Pb and Zn: batch-type and stirred flow chamber experiments",

abstract = "The objective of this work was to determine the retention of five metals on pine bark using stirred flow and batch-type experiments. Resulting from batch-type kinetic experiments, adsorption was rapid, with no significant differences for the various contact times. Adsorption was between 98 and 99% for Pb2+, 83-84% for Cu2+, 78-84% for Cd2+, 77-83% for Zn2+, and 70-75% for Ni2+, and it was faster for low concentrations, with Pb suffering the highest retention, followed by Cu, Cd, Ni and Zn. The fitting to the Freundlich and Langmuir models was satisfactory. Desorption increased in parallel to the added concentrations, with Pb always showing the lowest levels. Stirred flow chamber experiments showed strong hysteresis for Pb and Cu, sorption being mostly irreversible. The differences affecting the studied heavy metals are mainly due to different affinity for the adsorption sites. Pine bark can be used to effectively remove Pb and Cu from polluted environments.",

keywords = "Adsorption, Heavy metals, Pine bark, Stirred flow chamber",

author = "L. Cutillas-Barreiro and L. Ansias-Manso and {Fernandez Calvi{\~n}o}, David and M. Arias-Est{\'e}vez and J.C. N{\'o}voa-Mu{\~n}oz and M.J. Fern{\'a}ndez-Sanjurjo and E. {\'A}lvarez-Rodr{\'i}guez and A. N{\'u}{\~n}ez-Delgado",

year = "2014",

doi = "10.1016/j.jenvman.2014.06.008",

language = "English",

volume = "144",

pages = "258--264",

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TY - JOUR

T1 - Pine bark as bio-adsorbent for Cd, Cu, Ni, Pb and Zn

T2 - batch-type and stirred flow chamber experiments

AU - Cutillas-Barreiro, L.

AU - Ansias-Manso, L.

AU - Fernandez Calviño, David

AU - Arias-Estévez, M.

AU - Nóvoa-Muñoz, J.C.

AU - Fernández-Sanjurjo, M.J.

AU - Álvarez-Rodríguez, E.

AU - Núñez-Delgado, A.

PY - 2014

Y1 - 2014

N2 - The objective of this work was to determine the retention of five metals on pine bark using stirred flow and batch-type experiments. Resulting from batch-type kinetic experiments, adsorption was rapid, with no significant differences for the various contact times. Adsorption was between 98 and 99% for Pb2+, 83-84% for Cu2+, 78-84% for Cd2+, 77-83% for Zn2+, and 70-75% for Ni2+, and it was faster for low concentrations, with Pb suffering the highest retention, followed by Cu, Cd, Ni and Zn. The fitting to the Freundlich and Langmuir models was satisfactory. Desorption increased in parallel to the added concentrations, with Pb always showing the lowest levels. Stirred flow chamber experiments showed strong hysteresis for Pb and Cu, sorption being mostly irreversible. The differences affecting the studied heavy metals are mainly due to different affinity for the adsorption sites. Pine bark can be used to effectively remove Pb and Cu from polluted environments.

AB - The objective of this work was to determine the retention of five metals on pine bark using stirred flow and batch-type experiments. Resulting from batch-type kinetic experiments, adsorption was rapid, with no significant differences for the various contact times. Adsorption was between 98 and 99% for Pb2+, 83-84% for Cu2+, 78-84% for Cd2+, 77-83% for Zn2+, and 70-75% for Ni2+, and it was faster for low concentrations, with Pb suffering the highest retention, followed by Cu, Cd, Ni and Zn. The fitting to the Freundlich and Langmuir models was satisfactory. Desorption increased in parallel to the added concentrations, with Pb always showing the lowest levels. Stirred flow chamber experiments showed strong hysteresis for Pb and Cu, sorption being mostly irreversible. The differences affecting the studied heavy metals are mainly due to different affinity for the adsorption sites. Pine bark can be used to effectively remove Pb and Cu from polluted environments.

KW - Adsorption

KW - Heavy metals

KW - Pine bark

KW - Stirred flow chamber

U2 - 10.1016/j.jenvman.2014.06.008

DO - 10.1016/j.jenvman.2014.06.008

M3 - Journal article

AN - SCOPUS:84903201212

SN - 0301-4797

VL - 144

SP - 258

EP - 264

JO - Journal of Environmental Management

JF - Journal of Environmental Management

ER -

Pine bark as bio-adsorbent for Cd, Cu, Ni, Pb and Zn: batch-type and stirred flow chamber experiments

Abstract

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