Assessment of Metal Pollution in Contaminated Sediment after Bioleaching with Different Solid Contents

Gūven, E. Duyuşen; Akinci, Görkem
April 2012
Gazi University Journal of Science;2012, Vol. 25 Issue 2, p363
Academic Journal
The effect of solid concentration on bioleaching of metals from sediment was tested in this study in order to assess the Cr, Cu, Pb, and Zn pollution levels after the process. The solid contents of 10, 5, and 2.5% (w/v) were used in the bioleaching tests. After 48 days of flask experiments, Zn, Cr, and Cu, solubilizations were over 90% with 2.5% solid content. The metal pollution remained in the sediment after bioleaching is assessed by using the Pollution Index (PI) due to the values of Ecotox Thresholds of EPA. Bioleaching with 5% and 2.5% solid contents provided low PI values as 0.88 and 0.5 at the end of the experimental period.


Related Articles

  • Simultaneous heavy metals removal and municipal sewage sludge dewaterability improvement in bioleaching processes by various inoculums. Shi, Chaohong; Zhu, Nengwu; Shang, Ru; Kang, Naixin; Wu, Pingxiao // World Journal of Microbiology & Biotechnology;Nov2015, Vol. 31 Issue 11, p1719 

    The heavy metals content and dewaterability of municipal sewage sludge (MSS) are important parameters affecting its subsequent disposal and land application. Six kinds of inoculums were prepared to examine the characteristics of heavy metals removal and MSS dewaterability improvement in...

  • Distribution of AVS-SEM, transformation mechanism and risk assessment of heavy metals in the Nanhai Lake in China. He, Jiang; Lü, Changwei; Fan, Qingyun; Xue, Hongxi; Bao, Jinhua // Environmental Earth Sciences;Dec2011, Vol. 64 Issue 8, p2025 

    Distribution of AVS (acid volatile sulfide)-SEM (simultaneously extracted metals), transformation mechanism and risk assessment of heavy metals in the Nanhai Lake in Baotou City were discussed in this work. The results showed that the content of heavy metals in sediments increased due to the...

  • A method for improving Centre for Environmental Studies (CML) characterisation factors for metal (eco)toxicity — the case of zinc gutters and downpipes. Ligthart, Tom; Jongbloed, Ruud; Tamis, Jacqueline // International Journal of Life Cycle Assessment;Sep2010, Vol. 15 Issue 8, p745 

    Background, aim and scope: The environmental impact of building products made from heavy metals has been a topic of discussion for some years. This was fuelled by results of life cycle assessments (LCAs), where the emission of heavy metals strongly effected the results. An issue was that the...

  • The possibilities of the utilization of the polymetallic concentrate ÄŒoka Marin. Gomidželovic, Lidija D.; Požega, Emina D.; Trujic, Vlastimir K. // Journal of the Serbian Chemical Society;Jul2010, Vol. 75 Issue 7, p1 

    This paper presents the results of a calculation the content of composite concentrates, used as the charge in the Copper Smelter in B or, from the aspect of the behavior of zinc, lead, arsenic, cadmium and mercury. These elements show an extremely harmful effect on the environment and human...

  • Let a thousand flowers bloom... Adams, Amy // New Scientist;12/20/97&12/27/97, Vol. 156 Issue 2113/2114, p26 

    Presents information pertaining to the scientific dangers of heavy metals. Information on New York sculptor Mel Chin; Chin's use of various plants to clean soil contaminated by heavy metals; Comments from Chin; Suggestions made by Rufus Chaney, a botanist with a passion for phytoremediation,...

  • Geoquímica de Metais em Sedimentos da Zona Estuarina do Complexo Industrial Porto de Suape, PE - Brasil. Marques, J. S. J.; Rangel, T. P.; Brito, F. P.; Almeida, M. G.; Salomão, M. S. M. B.; Gobo, A. A. R.; Souza-Santos, L. P.; Araújo-Castro, C. M. V.; Costa, M. F.; Rezende, C. E. // RGCI - Revista de Gestão Costeira Integrada;2011, Vol. 11 Issue 4, p379 

    In order to evaluate the spatial pattern for several metals (Fe, Cu, V, Zn, Pb, Cd and Cr) in bottom sediments from Industrial and Harbor Complex of Suape, Brazil, were selected nine sites within the estuarine area. Our work hypothesis is that the harbor's sediments will show the higher...

  • Distribution of heavy metals in the Mala Welna River system (western Poland). Frankowski, Marcin; Sojka, Mariusz; Zioła-Frankowska, Anetta; Siepak, Marcin; Murat-Błażejewska, Sadżide // Oceanological & Hydrobiological Studies;2009, Vol. 38 Issue 2, p51 

    This paper reports the results of measurements of heavy metal concentrations in water, suspension, and bottom sediment samples collected at eight sites along the Mala Wełna River (western Poland). The samples were collected once a month from May to August 2006. The highest variations in the...

  • Potential ecological risk of heavy metals in sediments from the Mediterranean coast, Egypt. Soliman, Naglaa Farag; Nasr, Samir Mahmoud; Okbah, Mohamed Abdelaziz // Journal of Environmental Health Science & Engineering;10/11/2015, Vol. 13 Issue 1, p1 

    Background and aim: Mediterranean Sea, Egypt is an economically important marine environment. During the last decades there has been extensive increase in the levels of urbanization and industrialization along its coastal area. Therefore, the present work attempts to determine the status of...

  • Assisted Washing for Heavy Metal and Metalloid Removal from Contaminated Dredged Materials. Polettini, A.; Pomi, R.; Calcagnoli, G. // Water, Air & Soil Pollution;Jan2009, Vol. 196 Issue 1-4, p183 

    In the present study a chemical washing process was applied to dredged sea and river sediments. Five chelating agents (ethylenediaminetetraacetic, nitrilotriacetic, citric, [ S, S]-ethylenediaminedisuccinic and oxalic acids), three surfactants (sodium dodecyl sulphate, cetylpyridinium chloride...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics