scholarly journals In situ phytoremediation of copper and cadmium in a co-contaminated soil and its biological and physical effects

RSC Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 993-1003 ◽  
Author(s):  
Lei Xu ◽  
Xiangyu Xing ◽  
Jiani Liang ◽  
Jianbiao Peng ◽  
Jing Zhou
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Cost Effective ◽  
Potential Cost ◽  
Effective Technology ◽  
Physical Effects

Phytoremediation is a potential cost-effective technology for remediating heavy metal-contaminated soils.

scholarly journals Bio Remedial Potential for the Treatment of Contaminated Soils

2021 ◽  
Vol 2 (4) ◽  
pp. 53-58
Author(s):  
Hasnain Raza ◽  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Anthropogenic Activities ◽  
Cost Effective ◽  
Polluted Soil ◽  
Soil Bioremediation ◽  
Environmental Threat ◽  
The World

As anthropogenic activities rise over the world, representing an environmental threat, soil contamination and treatment of polluted areas have become a worldwide concern. Bioremediation is a sustainable technique that could be a cost-effective mitigating solution for heavy metal-polluted soil regeneration. Due to the difficulties in determining the optimum bioremediation methodology for each type of pollutant and the lack of literature on soil bioremediation, we reviewed the main in-situ type, their current properties, applications, and techniques, plants, and microbe’s efficiency for treatment of contaminated soil. In this review, we describe the deeper knowledge of the in-situ types of bioremediation and their different pollutant accumulation mechanisms.

Stabilization of Multiple Heavy Metal Contaminated Soils Using Biological Materials

2014 ◽  
Vol 541-542 ◽  
pp. 329-333 ◽  
Author(s):  
Chi Zhang ◽  
Zhong Zhong ◽  
Ying Jun Sun ◽  
Hui Min Lao
Keyword(s):  
Heavy Metal ◽  
Soil Remediation ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Soil Stabilization ◽  
Cost Effective ◽  
Biological Materials ◽  
Bone Meal ◽  
Short Period ◽  
Shell Powder

Heavy metal stabilization is a promising technology of soil remediation with short period and easy operation that has seen a recent explosion of interest. The effectiveness of Pb2+, Cu2+, Zn2+ and Ni2+ stabilization upon the waste biologic materials addition was investigated in this study. A contrast experiment was performed with materials including shell powder, bone meal and biochar. The results showed that biologic stabilizers have good stabilization ability of heavy metals in soil. The 2.5 wt.% shell powder and 2.5 wt.% bone meal treatment was the most effective, with solid stabilization performance on Pb2+, Cu2+, Zn2+ and Ni2+ by reduce the heavy metal cations over 87.69%, 92.40%, 63.37% and 80.32% respectively. The combination of shell powder and bone meal improved the rate of multiple heavy metal contaminated soil stabilization, while decreased alkalization of soil. In addition, the average production cost of mixed stabilizers in this study was around 1800 RMB/ton, with average of 200 RMB/ton remediation cost for heavy metal contaminated soil stabilization using these additives. The success of the mixed stabilizers with biological materials showed a promising and cost-effective approach for multiple heavy metal contaminated soil remediation.

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.

Remediation of multiple heavy metal-contaminated soil through the combination of soil washing and in situ immobilization

2018 ◽  
Vol 635 ◽  
pp. 92-99 ◽  
Author(s):  
Xiuqing Zhai ◽  
Zhongwu Li ◽  
Bin Huang ◽  
Ninglin Luo ◽  
Mei Huang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Soil Washing ◽  
In Situ Immobilization

Characteristics and in situ remediation effects of heavy metal immobilizing bacteria on cadmium and nickel co-contaminated soil

2020 ◽  
Vol 192 ◽  
pp. 110294 ◽  
Author(s):  
Ying Wang ◽  
Yao Luo ◽  
Guoquan Zeng ◽  
Xudong Wu ◽  
Bin Wu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
In Situ Remediation

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 Transformation of Pb, Cd, and Zn Minerals Using Phosphates

Minerals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 342 ◽  
Author(s):  
Magdalena Andrunik ◽  
Magdalena Wołowiec ◽  
Daniel Wojnarski ◽  
Sylwia Zelek-Pogudz ◽  
Tomasz Bajda
Keyword(s):  
Sequential Extraction ◽  
Contaminated Soils ◽  
Heavy Metal Contamination ◽  
Cost Effective ◽  
X Ray Diffraction ◽  
Chemical Immobilization ◽  
Crystal Forms ◽  
Dissolved Carbon ◽  
Three Samples

Heavy metal contamination in soils has become one of the most critical environmental issues. The most efficient in-situ remediation technique is chemical immobilization that uses cost-effective soil amendments such as phosphate compounds to decrease Pb, Cd and Zn accessibility in the contaminated soils. The present study examined the effectiveness of KH2PO4 in immobilizing Pb, Cd and Zn in three samples of contaminated soils collected from ZGH “Bolesław” (Mining and Smelting Plant “Bolesław”). Effectiveness was evaluated using the following methods: a toxicity characteristic leaching procedure (TCLP)-based experiment, sequential extraction, X-ray diffraction analyses (XRD), and scanning electron microscopy–energy dispersive spectroscopy (SEM–EDS). The most efficient percentage reduction of total leachable metal concentration assessed by TCLP was observed for lead (50%–80%), and the least reduction was observed for zinc (1%–17%). The most effective immobilization of stable compounds assessed by sequential extraction was noted for lead, while the weakest immobilization was noted for cadmium. New insoluble mineral phases were identified by SEM-EDS analysis. Cd, Zn, and Pb formed new stable mineral substances with phosphates. The predominant crystal forms were dripstones and groups of needles, which were easily formed by dissolved carbon rock surfaces containing zinc ions. The alkaline nature of the soil and a large number of carbonates mainly influenced the formation of new structures.

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