Impact of electrokinetic-assisted phytoremediation of heavy metal contaminated soil on its physicochemical properties, enzymatic and microbial activities

2012 ◽  
Vol 86 ◽  
pp. 41-48 ◽  
Author(s):  
Long Cang ◽  
Dong-Mei Zhou ◽  
Quan-Ying Wang ◽  
Guang-Ping Fan
Keyword(s):  
Heavy Metal ◽  
Physicochemical Properties ◽  
Contaminated Soil ◽  
Microbial Activities ◽  
Assisted Phytoremediation

Microorganism-assisted phytoremediation of heavy metal and endosulfan contaminated soil

2014 ◽  
Vol 29 (1-2) ◽  
Author(s):  
S.K. Yadav ◽  
A.A. Juwarkar ◽  
A.B. Balki ◽  
A.R. Shende ◽  
S.S. Devi ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Assisted Phytoremediation

scholarly journals An Assessment Of Physicochemical Properties, Heavy Metal Enrichment And Fungal Characterization Of Refined Kerosene Impacted Soil In Anand, Gujarat, India

2013 ◽  
Vol 2 (1) ◽  
pp. 164-174 ◽  
Author(s):  
Shamiyan R Khan ◽  
JI Nirmal Kumar ◽  
Rita N Kumar ◽  
Jignasha G Patel
Keyword(s):  
Heavy Metal ◽  
Physicochemical Properties ◽  
Fusarium Oxysporum ◽  
Contaminated Soil ◽  
Garden Soil ◽  
Metal Enrichment ◽  
Isolation And Characterization ◽  
Uncontaminated Soil ◽  
Heavy Metal Enrichment

The present study was carried out to assess the physico-chemical properties, heavy metal enrichment and fungal isolation and characterization of the top soil samples collected in-situ from aged refined kerosene contaminated as well as uncontaminated garden soil sites in Anand, Gujarat, India. The total petroleum hydrocarbon (TPH) concentrations were 17,510 mg/kg in kerosene contaminated soil against 142.65 mg/kg for uncontaminated soils. The contamination increased the soil organic carbon, nitrogen and clay to 2.95 %, 0.612 %, 36.22 % as compared to 1.5%, 0.153%, 32.4% respectively in the uncontaminated soil. Increased concentration of heavy metals like Cobalt, Copper, Iron, Zinc and Lead against the uncontaminated soil was encountered. Ten native fungal speciesbelonging to a total of five genera include Aspergillus (A. terreus, A. versicolor, A. niger); Fusarium oxysporum; Penicilliumjanthinellum from the uncontaminated garden soil, whereas the contaminated soil included Aspergillus (A. terreus, A. versicolor , A. niger) Candida tropicalis,Cladosporiumbruhnei and Fusarium oxysporum, identified based on 18S rRNA and the nucleotide sequences were submitted to the NCBI, GenBank database. The changes created by kerosene contamination resulted in variation in individual concentrations of physicochemical properties, soil conductivity, pH and soil fertility indices probably dwindle the growth of fungal strains causing a reduction in the fungal population in the kerosene contaminated soil. International Journal of Environment, Volume-2, Issue-1, Sep-Nov 2013, Pages 164-174 DOI: http://dx.doi.org/10.3126/ije.v2i1.9219

Bioaugmentation and Bioaugmentation – Assisted Phytoremediation of Heavy Metals Contaminated Soil By a Synergistic Effect of Cyanobacteria Inoculation, Biochar, and Purtolaca Oleracea

2021 ◽  
Author(s):  
Fahimeh Zanganeh ◽  
Ava heidari ◽  
Adel Sepehr ◽  
Abbas Rohani
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Contaminated Soil ◽  
Biological Effects ◽  
Substantial Reduction ◽  
Heavy Metal Accumulation ◽  
Portulaca Oleracea ◽  
Environmental Crisis ◽  
Bioavailable Fraction ◽  
Assisted Phytoremediation

Abstract In recent decades, soil contamination with heavy metals has become an environmental crisis due to their long-term stability and adverse biological effects. Therefore, bioremediation is an eco-friendly technology to remediate contaminated soil, that its efficiency requires further research. This study was conducted to comparatively investigate two strategies, including bioaugmentation by using Oscillatoria sp and bioaugmentation assisted phytoremediation by using Oscillatoria sp -portulaca oleracea for the bioremediation of heavy metal (Cr (III), Cr (VI), Fe, Al, and Zn) contaminated soil at 180 days. To facilitate the remediation process, various quantities of biochar (0, 0.5, 2, and 5% (w/w)) were used in the experiments. The results of the bioaugmentation showed a significant improvement in chlorophyll a, nitrogen, organic carbon contents of soil and decrease all heavy metal bioavailability and EC of soil. The remediation efficiency test using plants proved the success of remediation treatments. Moreover, the findings of bioaugmentation-assisted phytoremediation displayed an improvement in soil fertility and a substantial reduction in the bioavailable fraction of heavy metals, especially in soil amended with 5% biochar. Cyanobacteria inoculation and biochar amendment dramatically enhanced the root lengths and shoot heights of portulaca oleracea while it significantly decreased their heavy metal accumulation compared to the control. For all heavy metals, TF and BAC (except Zn) values ​​were found to be less than 1.0 at all treatments, illustrated the successful phytoextraction by the P. In conclusion, cyanobacteria inoculation along with biochar addition enhanced the TI quantities while diminished BAC and BCF values, suggesting the feasibility their applying in heavy metal contaminated soil for the facilitation of phytoremediation and their ability in pollutant immobilization.

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