Research on heavy metal release with suspended sediment in Taihu Lake under hydrodynamic condition

Author(s):  
Nan Geng ◽  
Yu Bai ◽  
Suli Pan
Author(s):  
Andrea Vannini ◽  
Luca Paoli ◽  
Riccardo Fedeli ◽  
Sharon Kwambai Kangogo ◽  
Massimo Guarnieri ◽  
...  

AbstractIn this study, the release of Cu2+ and Zn2+ was investigated and modeled in the epiphytic lichen Evernia prunastri. Samples were incubated with solutions containing these metals at ecologically relevant concentrations (10 and 100 μM) and then transplanted to a remote area and retrieved after 1, 2, 3, 6, 12, and 18 months. The results showed that, after 12 months, all samples faced similar metal reductions of ca. 80–85%, but after this period, all the involved processes seem to be no longer capable of generating further reductions. These results suggest that the lichen E. prunastri can provide information about environmental improvements after exposure to high or very high pollution levels in a relatively short period of time.


1999 ◽  
Vol 63 (2) ◽  
pp. 290-296 ◽  
Author(s):  
Andreas Schwarz ◽  
Wolfgang Wilcke ◽  
Wolfgang Zech ◽  
Jan Stýk

2010 ◽  
Vol 29-32 ◽  
pp. 2570-2575
Author(s):  
Bing Liang ◽  
Li Guo Jiang ◽  
Xiu Sheng Lu

For analysis of influence factors on heavy metal release from different weathering mine waste rock in Fu Xin mine area under the effect of rain water leaching, the materials which come from mine waste rock pile nearby Xin Qiu mine is collected and then process a serial leaching experiments. The initial PH value of leaching solution and experiment temperature have been selected to as influencing factors according to rainfall and weather condition of Fuxin mining area. The concentration of five heavy metal elements: Cd, Cr, Cu, Mn and Pb are tested in leaching solutions. The results show that the constituent characteristics of stratum rock is a major factor influenced on leaching solutions and heavy metal release. The weakly acidic leaching solution becomes to weakly alkaline after leaching the waste rock. The quantities of different heavy metal release represent disparate rules, influenced by distinct weathering degree. Concentrations of Cd and Cr increase with the leaching solution's pH value variation while Cu, Mn and Pb decreased. Higher temperature leads more heavy metal elements release from the waste rock.


2005 ◽  
Vol 19 (15) ◽  
pp. 2973-2989 ◽  
Author(s):  
J. J. Rothwell ◽  
S. G. Robinson ◽  
M. G. Evans ◽  
J. Yang ◽  
T. E. H. Allott

2018 ◽  
Vol 119 ◽  
pp. 64-72 ◽  
Author(s):  
Chunhui Xiong ◽  
Dongyu Wang ◽  
Nora Fungyee Tam ◽  
Yunyu Dai ◽  
Xiaomeng Zhang ◽  
...  

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