scholarly journals Determination of the levels of heavy metal (Cu, Fe, Ni, Pb and Cd) up take of pumpkin (Telfairia occidentalis) leaves cultivated on contaminated soil

2014 ◽  
Vol 18 (1) ◽  
pp. 71 ◽  
Author(s):  
OG Echem
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Telfairia Occidentalis

Determination of Pb-Contamination and Remediation Boundary Based on a Specific Site

2011 ◽  
Vol 414 ◽  
pp. 27-31
Author(s):  
An Ping Liu ◽  
Xiao Nan Sun ◽  
Fang Zhao ◽  
Xiao Song Sun ◽  
Wei Ren ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Specific Site ◽  
Contaminated Site ◽  
Repair Work ◽  
Soil Layers ◽  
Pb Contamination ◽  
Surfer Software ◽  
Reliable Basis

In the remediation of heavy metal contaminated site, determining the remediation boundary of contaminated site and amount of contaminated soil are important link of the entire work. This paper uses surfer software to draw out a picture of Pb-contamination distribution in different soil layers, determines a remediation boundary, and provides a reliable basis and brings great convenience for later repair work.

scholarly journals Application of nanoscale zero-valent iron in hexavalent chromium-contaminated soil: A review

2020 ◽  
Vol 9 (1) ◽  
pp. 736-750
Author(s):  
Xilu Chen ◽  
Xiaomin Li ◽  
Dandan Xu ◽  
Weichun Yang ◽  
Shaoyuan Bai
Keyword(s):  
Heavy Metal ◽  
Hexavalent Chromium ◽  
Contaminated Soil ◽  
Zero Valent Iron ◽  
Toxic Heavy Metal ◽  
Factors Affecting ◽  
Metal Pollutants ◽  
Nanoscale Zero Valent Iron ◽  
Low Toxicity ◽  
Heavy Metal Pollutants

AbstractChromium (Cr) is a common toxic heavy metal that is widely used in all kinds of industries, causing a series of environmental problems. Nanoscale zero- valent iron (nZVI) is considered to be an ideal remediation material for contaminated soil, especially for heavy metal pollutants. As a material of low toxicity and good activity, nZVI has been widely applied in the in situ remediation of soil hexavalent chromium (Cr(vi)) with mobility and toxicity in recent years. In this paper, some current technologies for the preparation of nZVI are summarized and the remediation mechanism of Cr(vi)-contaminated soil is proposed. Five classified modified nZVI materials are introduced and their remediation processes in Cr(vi)-contaminated soil are summarized. Key factors affecting the remediation of Cr(vi)-contaminated soil by nZVI are studied. Interaction mechanisms between nZVI-based materials and Cr(vi) are explored. This study provides a comprehensive review of the nZVI materials for the remediation of Cr(vi)-contaminated soil, which is conducive to reducing soil pollution.

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