scholarly journals Research Progress of Bioremediation on Heavy Metal Contaminated Soil

2017 ◽  
Vol 05 (02) ◽  
pp. 106-112
Author(s):  
燕春 高
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Research Progress

Research Progress in Enhancement Technology of Phytoremediation

2015 ◽  
Vol 768 ◽  
pp. 150-154
Author(s):  
Yi Yun Liu ◽  
Shuang Cui ◽  
Qing Han ◽  
Qian Ru Zhang
Keyword(s):  
Heavy Metal ◽  
Food Chain ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
New Technology ◽  
Research Progress ◽  
Agricultural Activity ◽  
Practical Application ◽  
Soil Environment ◽  
Article Analysis

Due to the influence of human, industrial and agricultural activity, a large amount of toxic and harmful heavy metal enter into the soil environment. Heavy metal can easily bio-accumulate through food chain, which cause serious damage to human health. Phytoremediation emerges as a new technology in exploration of effective methods for remediation and rebuild of heavy metal contaminated soils. Although phytoremediation shows great potential in remediation of heavy metal contaminated soil, there still exists many problems in practical application. This article analysis the problems existing in phytoremediation, summarizes the research progress of the technology in application from all the perspective of phytoremediation processes.

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.

The Study of Remediation Standards of Heavy Metal-Cu Contaminated Soil Based on Risk Assessment

2011 ◽  
Vol 414 ◽  
pp. 93-98
Author(s):  
An Ping Liu ◽  
Xiao Nan Sun ◽  
Fang Yang ◽  
Xing Xing Yao
Keyword(s):  
Risk Assessment ◽  
Heavy Metal ◽  
Soil Remediation ◽  
Contaminated Soil ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Oral Ingestion ◽  
Cu Contamination ◽  
Standard Value ◽  
Exposure Methods

This paper describes the model of heavy metal-Cu contaminated soil remediation standard value based on risk assessment. In the Cu contamination risk assessment model, the main exposure methods are oral ingestion and inhalation through breathing, which not only simplifies the calculation but also make people get a clearer understanding of the way of Cu contamination. We get the simplified formula, calculate and discuss Cu contaminated soil remediation target value in specific parameters to provide reference and basis for the remediation of Cu contaminated soil.

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