scholarly journals Mining Pollution and Sedimentation, Release Flux of Heavy Metal at Sediment-Water Interface in Wujiangdu Reservoir

2020 ◽  
Author(s):  
Qingqing Sun ◽  
Si-Liang Li ◽  
Keqiang Peng
Keyword(s):  
Heavy Metal ◽  
Water Interface ◽  
Mining Pollution ◽  
Release Flux

Interactions of heavy metal elements across sediment-water interface in Lake Jiaogang

2021 ◽  
pp. 117578
Author(s):  
Ming Kong ◽  
Yanzhong Zhu ◽  
Tianlun Han ◽  
Shuai Zhang ◽  
Jiuling Li ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Water Interface ◽  
Metal Elements ◽  
Heavy Metal Elements

Effects of Mining Pollution on the Longjiang River in China

2015 ◽  
Vol 1130 ◽  
pp. 610-613
Author(s):  
Ming Jiang Zhang ◽  
Fu Ke Huang ◽  
Nan Wang ◽  
Guang Yuan Wang ◽  
Xing Yu Liu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Heavy Metal ◽  
Surface Water ◽  
Metal Content ◽  
Quality Standards ◽  
Chemical Precipitation ◽  
Mining Pollution ◽  
National Environmental

In order to investigate the effects of mining pollution to LongJiang River and to know the situation of LongJiang River, we collected water and sludge samples along the river and analyzed the heavy metal content of samples. Results showed that LiDeFen factory and JinHe mining released most of the heavy metals to LongJiang River two years ago, and the upstream of LongJiang River also released some metal to the river. These heavy metals were precipitated to the bottom of LongJiang River by using weak alkaline chemical precipitation technology, and water quality of LongJiang River can reach the second national environmental quality standards of surface water now. The precipitation effects were different in different remediation sites.

Complementary Z-Contrast Imaging and Digital Image Processing

1985 ◽  
Vol 43 ◽  
pp. 304-305
Author(s):  
K. N. Colonna ◽  
G. Oliphant
Keyword(s):  
Image Processing ◽  
Heavy Metal ◽  
Digital Image Processing ◽  
Digital Image ◽  
Biological Tissue ◽  
Biological Imaging ◽  
Tissue Preparation ◽  
Contrast Imaging ◽  
Imaging Tool ◽  
Z Contrast

Harmonious use of Z-contrast imaging and digital image processing as an analytical imaging tool was developed and demonstrated in studying the elemental constitution of human and maturing rabbit spermatozoa. Due to its analog origin (Fig. 1), the Z-contrast image offers information unique to the science of biological imaging. Despite the information and distinct advantages it offers, the potential of Z-contrast imaging is extremely limited without the application of techniques of digital image processing. For the first time in biological imaging, this study demonstrates the tremendous potential involved in the complementary use of Z-contrast imaging and digital image processing.Imaging in the Z-contrast mode is powerful for three distinct reasons, the first of which involves tissue preparation. It affords biologists the opportunity to visualize biological tissue without the use of heavy metal fixatives and stains. For years biologists have used heavy metal components to compensate for the limited electron scattering properties of biological tissue.

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