نتایج جستجو برای: heavy metals uptake

تعداد نتایج: 295281  

Background and Purpose: Soil remediation in contaminated soils is an important factor of environmental research. This research evaluated the effect of sepiolite, palygorskite, and triple super phosphate (TSP) on decreasing the heavy metals uptake by wheat cultivars inoculated with Piriformospora indica (P. indica). Materials and Methods: Treatments included applying sepiolite, palygorskite (at...

Journal: :Chemosphere 2009
M Ramiro Pastorinho Trevor C Telfer Amadeu M V M Soares

Heavy metals accumulated by aquatic crustaceans in environmental studies are normally investigated using the whole body burden, with little regard paid to uptake in different tissues, to potential gender of life stage differences, or to the influence of nutrition on the test organism. This is likely to give erroneous conclusions for a dose-response relationship within the toxicity test and pote...

2011
I Nhapi

Heavy metals are widely used in textile industries and significant losses occur during the manufacture and processing of textiles, and these lost heavy metals are discharged in the effluent. Adsorption of heavy metals is a new technology for treatment of wastewater containing different types of selected heavy metals. In this study, adsorbents Carbonized Rice Husk (CRH) and Activated Rice Husk (...

2005
M. Komárek P. Tlustoš J. Száková V. Chrastný J. Balík

In several cases ethylenediaminetetraacetic acid (EDTA) proved to be an efficient mobilising amendment during chemically enhanced phytoextraction of heavy metals. The presence of Fe-(hydr)oxides and their dissolution after the addition of EDTA can limit the phytoextraction of the targeted heavy metals due to the high stability of the formed Fe(III)EDTA complexes. This study has focused on the i...

Journal: :International journal of environmental research and public health 2016
Hang Zhou Wen-Tao Yang Xin Zhou Li Liu Jiao-Feng Gu Wen-Lei Wang Jia-Ling Zou Tao Tian Pei-Qin Peng Bo-Han Liao

The objectives of the present study were to investigate heavy metal accumulation in 22 vegetable species and to assess the human health risks of vegetable consumption. Six vegetable types were cultivated on farmland contaminated with heavy metals (Pb, Cd, Cu, Zn, and As). The target hazard quotient (THQ) method was used to assess the human health risks posed by heavy metals through vegetable co...

Journal: :Chemosphere 2006
Susan Tandy Rainer Schulin Bernd Nowack

Phytoextraction is an environmentally friendly in situ technique for cleaning up metal contaminated land. Unfortunately, efficient metal uptake by remediation plants is often limited by low phytoavailability of the targeted metals. Chelant assisted phytoextraction has been proposed to improve the efficiency of phytoextraction. Phytoremediation involves several subsequent steps: transfer of meta...

2009
Tomoyuki Makino

Rapid industrialization in the 1960s caused heavy metals such as cadmium (Cd) to severely pollute soil in Japan. The Agricultural Land Soil Pollution Prevention Law was enacted in 1970 to cope with the heavy metal pollution. Cd, in particular, has been recognized as one of the most detrimental elements in Japan because of the so-called “itai-itai” disease caused through Cd uptake. Recently, the...

Journal: :iranian journal of microbiology 0
fahimeh ghanbarinia basic science department, faculty of biology, hakim sabzevary university, sabzevar, iran, post code:9617976487. mitra kheirabadi basic science department, faculty of biology, hakim sabzevary university, sabzevar, iran, post code:9617976487. nasrin mollania basic science department, faculty of biology, hakim sabzevary university, sabzevar, iran, post code:9617976487.

background and objectives: heavy metals are considered as high risk biocides due to their harmful effects on human health, the environment and other living organisms. bacterial strains showing resistance to heavy metals has been used for removing such toxic materials from the environment. in this study we isolated and characterized a heavy metals-resistance halophilic bacterial strains from kal...

F. Doulati Ardejani H. Amir Afshar R. Marandi,

The biosorption of heavy metals can be an effective process for the removal of such metal ions from aqueous solutions. In this study, the adsorption properties of nonliving biomass of phanerochaete chrysosporium for Pb (II) and Zn (II) were investigated by the use of batch adsorption techniques. The effects of initial metal ion concentration, initial pH, biosorbent concentration, stirring speed...

Journal: :Journal of the agricultural chemical society of Japan 1974

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