Removal and bioaccumulation of heavy metals from aqueous solutions using freshwater algae

Four freshwater algae, including Cladophora glomerata, Oedogonium westii, Vaucheria debaryana and Zygnema insigne, were tested for their bioaccumulation capacity for cadmium (Cd), chromium (Cr) and lead (Pb) in a controlled environment with an average temperature of 18 °C, and light/dark duration of...

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Publié dans:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 71(2015), 1 vom: 21., Seite 38-44
Auteur principal: Shamshad, Isha (Auteur)
Autres auteurs: Khan, Sardar, Waqas, Muhammad, Ahmad, Nadeem, Khushnood-Ur-Rehman, Khan, Kifayatullah
Format: Article en ligne
Langue:English
Publié: 2015
Accès à la collection:Water science and technology : a journal of the International Association on Water Pollution Research
Sujets:Journal Article Research Support, Non-U.S. Gov't Metals, Heavy Cadmium 00BH33GNGH Chromium 0R0008Q3JB Lead 2P299V784P
Description
Résumé:Four freshwater algae, including Cladophora glomerata, Oedogonium westii, Vaucheria debaryana and Zygnema insigne, were tested for their bioaccumulation capacity for cadmium (Cd), chromium (Cr) and lead (Pb) in a controlled environment with an average temperature of 18 °C, and light/dark duration of 12:12 h. Experiments were performed in aqueous solutions containing selected heavy metals (HM) (ranging from 0.05 to 1.5 mg L(-1)) with 0.5 g of living algae at 18 °C and pH 6.8. The results indicated that C. glomerata was observed to be the most competent species for the removal of Cr, Cd and Pb from aqueous solutions. HM removal trends were in the order of Cd>Cr>Pb while the removal efficiency of selected algae species was in the order of C. glomerata, O. westii, V. debaryana and Z. insigne. The bioaccumulation capacity of C. glomerata, V. debaryana and Z. insigne was observed for different HM. Removal of HM was higher with low levels of HM in aqueous solutions. The results indicated that C. glomerata, O. westii, V. debaryana and Z. insigne had significant (P≤0.01) diverse bioaccumulation capacity for Cr, Cd and Pb
Description:Date Completed 13.10.2015
Date Revised 02.12.2018
published: Print
Citation Status MEDLINE
ISSN:0273-1223
DOI:10.2166/wst.2014.458