scholarly journals Research on Remediation Technology of Heavy Metal Contaminated Soil

2021 ◽  
Vol 859 (1) ◽  
pp. 012075
Author(s):  
Runfeng Tian ◽  
Yuxuan Kuang ◽  
Zhanglin Wang ◽  
Pengcheng Zhao ◽  
Penghao Liang
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Remediation Technology

scholarly journals Advances in application of nanomaterials in remediation of heavy metal contaminated soil

2021 ◽  
Vol 261 ◽  
pp. 04027
Author(s):  
Na Ding ◽  
Mengxuan Han ◽  
Yao He ◽  
Xinshuai Wang ◽  
Yuxuan Pan ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Environmental Problem ◽  
High Reactivity ◽  
Large Specific Surface Area ◽  
Remediation Technology ◽  
Strong Adsorption ◽  
Combination Technology ◽  
Further Development

Soil heavy metal pollution has become an environmental problem that has attracted worldwide attention. Nanomaterials have the advantages of large specific surface area, strong adsorption capacity and high reactivity, making nanomaterials remediation technology an excellent application prospect in contaminated soil remediation. This article introduces the main classification of nanomaterials, summarizes the mechanism of nanomaterials to remove heavy metals, and the combination technology of nanomaterials. It provides a scientific reference for the further development of this field.

scholarly journals Bioremediation of cadmium-contaminated paddy soil using an autotrophic and heterotrophic mixture

RSC Advances ◽  
2020 ◽  
Vol 10 (44) ◽  
pp. 26090-26101
Author(s):  
Menglong Xu ◽  
Yazi Liu ◽  
Yan Deng ◽  
Siyuan Zhang ◽  
Xiaodong Hao ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Paddy Soil ◽  
Contaminated Soils ◽  
Short Term ◽  
Remediation Technology ◽  
Soil P ◽  
Contaminated Paddy Soil

Bioremediation can be a promising and effective remediation technology for treating Cd contaminated soils. Cooperative bioremediation using heterotrophic and autotrophic mixtures proved to be an efficient, short-term bioremediation strategy for heavy metal contaminated soil.

scholarly journals The current knowledge of hyperaccumulator plants

2021 ◽  
Vol 261 ◽  
pp. 04019
Author(s):  
Yao He ◽  
Na Ding ◽  
Mengxuan Han ◽  
Xinshuai Wang ◽  
Hua Lin ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Current Knowledge ◽  
Present Situation ◽  
Research Progress ◽  
Remediation Technology ◽  
Microbial Remediation

In recent years, heavy metal pollution in soil has become a serious problem. Remediation technologies have been developed, such as physical remediation, chemical remediation, microbial remediation and other technologies. Among them, phytoremediation has been widely used in practice. In this paper, the present situation of heavy metal pollution in soil in China, the research progress of remediation technology of heavy metal contaminated soil and the remediation of heavy metal contaminated soil by hyperaccumulators are reviewed, to help with follow-up research in this area.

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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