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This is a study on the decontamination function of two kinds of aquatic plants towards Pb2+, cress and acorus. The results show: both cress and acorus have the ability of removing heavy metal Pb2+, while acorus shows higher decontamination ability, up to 91%. Acorus shows higher accumulation rate of Pb2+ compared to cress and its underground (root) accumulation rate is significantly higher than that...
An extracellular biopolymer (PS-2) produced by Pseudomonas fluorescence C-2 was used as an alternative biosorbent to remove toxic Pb(II) metallic ions from aqueous solutions. The prepared biosorbent PS-2 were characterized by FTIR and SEM. The effect of experimental parameters such as pH, dosage of biosorbent , Pb(II) initial concentration and contact time on the adsorption was studied. It was found...
Experiments were designed to investigate the bioavailability of mercury and lead in water with Zebrafish (Brachydanio rerio). Their body residues were determined during the absorptions and eliminations in the situation of with and without sediment. The concentrations of mercury and lead were determined by the application of microwave digestion-atomic fluorescence spectrometry. We analyze the Relative...
The extensive clayization of Dexing copper mine is responsible for water and soil pollutions because of the oxidation of sulfide minerals. During the clayization, harmful elements such as As, S, Sb and Pb could be effectively released into the clay and water. Using the abundant spectral information of short wave infrared (SWIR), combining with the spectral absorbed index, SAM (Spectrum Angle Mapper)...
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