scholarly journals Research Progress on Remediation of Heavy Metal Polluted Soils with Mining Ecotype Sedum alfredii

2017 ◽  
Author(s):  
Lu Zhang ◽  
Herong Gui ◽  
Haojie Shi ◽  
Han Ding
Keyword(s):  
Heavy Metal ◽  
Research Progress ◽  
Sedum Alfredii ◽  
Polluted Soils

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 use of N HNO3 to determine copper and zinc levels in heavy-metal polluted tropical soils

2021 ◽  
Vol 905 (1) ◽  
pp. 012001
Author(s):  
A K Salam ◽  
M Milanti ◽  
G Silva ◽  
F Rachman ◽  
I M T D Santa ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Tropical Soils ◽  
Correlation Study ◽  
Relative Strength ◽  
Soil Samples ◽  
Water Spinach ◽  
Polluted Soils ◽  
Chemical Extractants ◽  
Soil Zn ◽  
Zinc Levels

Abstract This study compared N HNO3 to other methods to determine plant available heavy metals in heavy-metal polluted soils. Soil samples were obtained from an experimental field treated with industrial waste after 22 years of the amendment and employed to conduct the comparative and correlation study. Soil samples were analyzed for Cu using various methods, planted in a glass house with several plants, and analyzed for soil and plant Cu and Zn. The relative strength of the chemical extractants followed the order of N HNO3 ≈ N HCl > Buffered DTPA ≈ Unbuffered DTPA > M CaCl2 ≈ N NH4OAc pH 7. A high correlation was observed for soil extracted Cu by M CaCl2 or N NH4OAc pH 7 or N HCl vs. Buffered DTPA and N HNO3 or N NH4OAc pH 7 vs. N HCl. High correlations of plant and soil Cu extracted by N HNO3 were shown by caisim, water spinach, land spinach, and corn, while plant and soil Zn were shown by caisim, water spinach, land spinach, and lettuce.

scholarly journals Remediation of Pb and Cd Polluted Soils with Fulvic Acid

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1608
Author(s):  
Aslihan Esringü ◽  
Metin Turan ◽  
Asli Cangönül
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Fulvic Acid ◽  
Ornamental Plants ◽  
Polluted Soil ◽  
Green Technology ◽  
Zinnia Elegans ◽  
Fresh Weight ◽  
Polluted Soils ◽  
The World

Heavy metal pollution is among the important environmental problems in the world. Many techniques have already been used to remove the heavy metals such as lead (Pb) and cadmium (Cd). Among them, the phytoremediation method is an environmentally friendly and green technology. This study was carried out to determine the efficiency of fulvic acid (FA) application in removing Pb and Cd from polluted soil using Tagetes eracta L. and Zinnia elegans Jacq. ornamental plants. The results indicated that, FA application, number of flower per plants, and plant fresh weight of Tagetes eracta plants and Zinnia elegans plants increased 187.5%, 104.5% and 155.5%, 57.7%, respectively with application of 7000 mg L−1 FA at 100 mg kg−1 Pb pollution condition, whereas 42.85%, 16.5%, and 44.4–36.1% with application of 7000 mg L−1 FA at 30 mg kg±1 Cd pollution condition, respectively. With the FA application in the Zinnia elegans plant, the root part has accumulated 51.53% more Pb than the shoot part. For Cd, the shoot part accumulated 35.33% more Cd than the root. The effect of FA application on superoxide dismutase (SOD), peroxidase (POD) and, catalase (CAT) of the Tagetes eracta were decreased as 32.7%, 33.1%, and 35.1% for Pb, 21.2%, 25.1%, and 26,1%, for Cd, and 15.1%, 22.7%, and 37.7% for Pb, and 7.55%, 18.0%, and 18.8% for Cd were in Zinnia elegans respectively. In conclusion, Tagetes eracta and Zinnia elegans can not be recommended for remediation of Pb and Cd polluted area, but FA can be recommended for Pb and Cd stabilization in polluted soil.

Research Progress in Removing Heavy Metals from Waste Water via Bio-Sorption

2014 ◽  
Vol 587-589 ◽  
pp. 692-695
Author(s):  
Wei Sun
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Water Treatment ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Waste Water Treatment ◽  
Research Progress ◽  
Traditional Methods ◽  
Sorption Method

Bio-absorption has an unparalleled advantage over other traditional methods in removing and recycling heavy metal ions from waste water. Consequently, it has a promising future. In this paper, the traditional methods and the bio-sorption method via which heavy metals are removed from waste water are compared to summarize the mechanism of bio-sorption, the types of bio-sorbent, the factors that can influence bio-sorption and the state of its application in waste water treatment .

Legume–Rhizobium Symbioses as a Tool for Bioremediation of Heavy Metal Polluted Soils

2011 ◽  
pp. 95-123 ◽  
Author(s):  
Eloísa Pajuelo ◽  
Ignacio David Rodríguez-Llorente ◽  
Alejandro Lafuente ◽  
Miguel Ángel Caviedes
Keyword(s):  
Heavy Metal ◽  
Polluted Soils

Role of Plant-Associated Microbes in Phytoremediation of Heavy Metal Polluted Soils

2021 ◽  
pp. 157-170
Author(s):  
Manoj Parihar ◽  
Amitava Rakshit ◽  
Manoj Kumar Chitara ◽  
Hanuman Singh Jatav ◽  
Vishnu D. Rajput ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Polluted Soils

Phytoremediation: Environmentally sustainable way for reclamation of heavy metal polluted soils

2019 ◽  
Vol 174 ◽  
pp. 714-727 ◽  
Author(s):  
Sana Ashraf ◽  
Qasim Ali ◽  
Zahir Ahmad Zahir ◽  
Sobia Ashraf ◽  
Hafiz Naeem Asghar
Keyword(s):  
Heavy Metal ◽  
Polluted Soils ◽  
Environmentally Sustainable

Microbial Response to Heavy Metal-Polluted Soils

2005 ◽  
Vol 34 (5) ◽  
pp. 1789-1800 ◽  
Author(s):  
M. Belén Hinojosa ◽  
José A. Carreira ◽  
Roberto García-Ruíz ◽  
Richard P. Dick
Keyword(s):  
Heavy Metal ◽  
Polluted Soils ◽  
Microbial Response
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