EDTA enhanced heavy metal phytoextraction metal accumulation leaching and toxicity

... 2001 Kluwer Academic Publishers. Printed in the Netherlands. 105 EDTA enhanced heavy metal phytoextraction: metal accumulation, leaching and toxicity H. Gr ˇ cman, Š. Velikonja-Bolta, D. Vodnik, ... we examined the effect of EDTA on the uptake of Pb, Zn and Cd by Chinese cabbage (Brassica rapa), mobilization and leaching of heavy metals and the toxicity effects...

Ngày tải lên: 16/03/2014, 00:07

... After digestion of the cosmids with ApaI, KpnI and PstI, an ApaI band of 4.0 kb from cosmid 10A7, a 1.0 kb ApaI band from cosmid D10 and an 8.0 kb PstI band from cosmid D52 gave a strong positive hybridization. ... on DNAÆprotein interaction and of domain 2 in the protein dimerization and metal binding (see the Discussion). There are important differences between DmdR1 and DmdR2 p...

Ngày tải lên: 16/03/2014, 18:20

... other hand, when the doping process was carried out at lower temperature, enhanced n-type behavior was observed with higher conductivity and mobility. 64 J.G. Lu et al. / Materials Science and Engineering ... direct band gap of 2.28 eV and an in indirect band gap of 0.55 eV. As mentioned before, several synthesis methods to grow Q1D CdO structure have been developed. Fig. 15a shows a...

Ngày tải lên: 20/03/2014, 13:06

... between Zn 2+ and Ca 2+ binding to S100A2 and to address how metallation affects the protein conformation and stability, we have investigated the effects of metal ions on the wild-type protein and on ... 2 EF-hand 1 EF-hand 2 Scheme 1. S100A2 subunit topology, including the location of cysteines and other Zn 2+ -coordinating residues [8,12]. Boxes repre- sent a-helices and arrow...

Ngày tải lên: 30/03/2014, 02:20

... last decades. Estimations of heavy metal toxicity and accumulation in heavy metal tolerant plants are necessary in order to apply the phytoremediation for heavy metal removal. However, it has ... toxicity model and the accumulation model can be found so far though it is necessary to compare these two models for appropriate modeling and prediction of heavy m...

Ngày tải lên: 05/09/2013, 10:15

Ngày tải lên: 23/09/2012, 14:47

... Whisker Absorbent and Applications in Heavy Metal Ions Removal Shali Tan 1 , Yujun Zhang 2* , Hongyu Gong 2** 1 School of Environmental Science and Engineering Shandong University, ... using PTW to treat industrial waste water containing heavy metal ions is discussed. Key words: Potassium tetratitanate, whisker, heavy metal ion, absorption INTRODUCTION P...

Ngày tải lên: 05/09/2013, 09:38

... Construction standard when no risks for environment (heavy metal leaching into rain water) were found. In further study, heavy metal leaching into rain water with lower pH value and longer ... material as color blending (pigment) and raw material in flower brick and cement brick production. 2. Experimental Method 2.1. Heavy metal rich sludge: The heavy metal...

Ngày tải lên: 12/02/2014, 17:20

... peripheral part is extensively hydrophilic and contains several structural and functional modules, such as nucleotide binding (N), phosphorylation (P), actuator (A) and heavy metal binding (HMA) domains. During ... Negative difference bands at 1525 and 1347 cm )1 refer to the symmetric and anti-symmetric vibrations of the NO 2 group in cgATP identified previously [25]. For compar...

Ngày tải lên: 07/03/2014, 00:20

... magnetic resonance studies of the solution chemistry of metal complexes. 26. Mixed ligand complexes of cadmium, nitrilotriacetic acid, glutathione, and related ligands. J Inorg Biochem 38, 277–288. 17 Hemmingsen ... homology to glutathione S-transferase, protects Saccharomyces cerevisiae cells from heavy metal ion and oxidant toxicity. J Biol Chem 278, 12826–12833. 25 Adamis PD, G...

Ngày tải lên: 15/03/2014, 00:20