期刊名称：International Research Journal of Environmental Sciences
电子版ISSN：2319-1414
出版年度：2020
卷号：9
期号：1
页码：26-37
语种：English
出版社：International Science Community Association
摘要：An experiment was carried out in the experimental field and laboratory of the Department of Environmental Science, Bangladesh Agricultural University, Mymensingh during the period of November 2016 to May 2017 to assess the quantity and extent of pollution of soils with heavy metals from industrial and municipal waste and to determine the heavy metals accumulating performance of plant species (Helianthus annuus and Amaranthusdubius) from soil. The experiment was laid out in a randomized completed block design (RCBD) for field trials. Three treatments (To= Control soil; T1= Industrial waste incorporated soil; T2= Municipal waste incorporated soil) were used for this study with three replications. In field experiment, two types of wastes (industrial and municipal) were collected from waste discharging point of Kaderia Textile Mills in Tongi and waste dumping site near to Konabari, Gazipur. Plants were grown according to the experimental design. For analytical experiment, soils of each treatment were analyzed to measure the metal contents. Plant samples were collected from fields and prepared for analysis. The initial contents of heavy metals (Cu, Zn, Pb, Cr) in soils and the heavy metals accumulating performance of sunflower and data were evaluated in this experiment. The results revealed that heavy metals (Cu, Zn, Pb, Cr) contents were 31.64, 76.25, 22.14 and 30.83mg/kg in control soils respectively while municipal waste samples showed of 76.83, 165.43 53.68 and 64.09mg/kg of Cu, Zn, Pb and Cr, respectively. The initial contents of Cu, Zn, Pb and Cr in industrial waste samples were 108.38, 205.53, 101.09 and 79.28mg/kg. This experiment showed that the roots of sunflower accumulated more copper (Cu), zinc (Zn), lead (Pb), and chromium (Cr) than shoots of sunflower from all treatment combinations and the shoots of data accumulated more copper (Cu), zinc (Zn), lead (Pb), and chromium (Cr) than roots of data from all treatment combinations except control soil. Both plants (Helianthus annuus and Amaranthus dubius) showed different strategies of removing heavy metals from soils and sunflower having the greatest ability for removing the most common and toxic heavy metals from soils. It would be an important impact for management of soil pollution, especially for heavy metal pollution.
关键词：Accumulation of metals;plant uptake;Helianthus annuus;Amaranthus dubius
