Adsorption of heavy metals from acid mine drainage by natural zeolite

2009 ◽  
Vol 92 (1-2) ◽  
pp. 42-48 ◽  
Author(s):  
T. Motsi ◽  
N.A. Rowson ◽  
M.J.H. Simmons
Keyword(s):  
Heavy Metals ◽  
Acid Mine Drainage ◽  
Natural Zeolite ◽  
Mine Drainage ◽  
Acid Mine

Heavy Metal by Zero-Valent Iron and Natural Zeolite Partitioning in Acid Mine Drainage: A Comparative Study

2014 ◽  
Vol 986-987 ◽  
pp. 751-754
Author(s):  
Chang Feng Cai ◽  
Lin Jiang ◽  
Feng Li Wang ◽  
Fu Zhang Qi
Keyword(s):  
Heavy Metals ◽  
Acid Mine Drainage ◽  
Natural Zeolite ◽  
Mine Drainage ◽  
Permeation Rate ◽  
Zero Valent Iron ◽  
Operating Life ◽  
Major Purpose ◽  
Acid Mine ◽  
Bed Materials

In this study, two different bed materials in media filter systems were examined. Natural zeolite has the ability to take up heavy metals (Cd, Zn) from acid mine drainage (AMD) as well as zero-valent iron (ZVI). The aim of the study was to estimate the ability to remove heavy metals of Natural zeolite and compare the efficiencies of the two media. A major purpose of this report was to determine which media would have a higher permeation rate after running a period of time. It was concluded that ZVI had a higher efficiency of taking up heavy metals (>96.5%) and a faster permeation rate which had a longer operating life.

Mechanisms and Remediation Technologies of Sulfate Removal from Acid Mine Drainage

2012 ◽  
Vol 610-613 ◽  
pp. 3252-3256
Author(s):  
Mei Qin Chen ◽  
Feng Ji Wu
Keyword(s):  
Heavy Metals ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Metal Corrosion ◽  
Sulfate Ion ◽  
High Concentration ◽  
Biological Reduction ◽  
Acid Mine ◽  
Sulfate Removal ◽  
Co Precipitation

Acid mine drainage (AMD) has properties of extreme acidification, quantities of sulfate and elevated levels of soluble heavy metals. It was a widespread environmental problem that caused adverse effects to the qualities of ground water and surface water. In the past decades, most of investigations were focused on the heavy metals as their toxicities for human and animals. As another main constitution of AMD, sulfate ion is nontoxic, yet high concentration of sulfate ion can cause many problems such as soil acidification, metal corrosion and health problems. More attention should be paid on the sulfate ion when people focus on the AMD. In the paper, sulfate removal mechanisms include adsorption, precipitation, co-precipitation and biological reduction were analyzed and summarized. Meanwhile, the remediation technologies, especially the applications of them in China were also presented and discussed.

Magnetic natural composite Fe3O4-chitosan@bentonite for removal of heavy metals from acid mine drainage

2019 ◽  
Vol 538 ◽  
pp. 132-141 ◽  
Author(s):  
Guorui Feng ◽  
Jianchao Ma ◽  
Xiaopeng Zhang ◽  
Qingfang Zhang ◽  
Yuqiang Xiao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Acid Mine ◽  
Removal Of Heavy Metals ◽  
Natural Composite

Chemical precipitation of heavy metals from acid mine drainage

2002 ◽  
Vol 36 (19) ◽  
pp. 4757-4764 ◽  
Author(s):  
Matthew M Matlock ◽  
Brock S Howerton ◽  
David A Atwood
Keyword(s):  
Heavy Metals ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Chemical Precipitation ◽  
Acid Mine
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