Optimization of Soil washing process in the presence of Tween 80 and EDTA compounds in removing PAHs and Cadmium by method BBD contaminants from contaminated soil

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Harati Motahareh; REZAEI KALANTARY ROSHANAK

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Journal: JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY Year:2021 | Volume:22 | Issue:11 (102) Page(s): 143-155

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Title

Optimization of Soil washing process in the presence of Tween 80 and EDTA compounds in removing PAHs and Cadmium by method BBD contaminants from contaminated soil

Author(s)

Harati Motahareh | REZAEI KALANTARY ROSHANAK | Issue Writer Certificate

Keywords

PhenanthreneQ2

CadmiumQ2

Tween 80Q1

EDTAQ1

Soil washingQ1

Abstract

Background and Objective: Pollution caused by petroleum compounds (PAHs) and heavy metals due to their properties Cumulative and High toxicity Causing major environmental problems. These compounds, although detected in air and water, are the final and main receptive soil. Soil washing process using surfactants is a high-performance physicochemical technology for the removal of Phenanthrene and Cadmium from the soil environment and transferring them to the aqueous phase. Method: In this study, the efficiency of the process with the BBD method, with RSM, was designed to optimizing parameters such as surfactant concentration in the range 1000, 1500 and 2000 mg/L, washing Time 2, 12, 24 hours with L/S 10, 20 and 30 ml/g. To contaminated soil samples were added high concentrations Phenanthrene (500 mg/kg) and Cadmium (80 mg/kg), surfactant Tween 80 and EDTA. Findings: The final concentration of Phenanthrene and Cadmium was measured by HPLC and atomic absorption spectrometry (ASS). The results showed that the efficiency of the process under optimal conditions for the separation of 76% Phenanthrene and 81% Cadmium in separate concentrations of Tween 80 and EDTA was reached in 2000 mg/L, L/S 30 ml/g (v/w), washing time 2 hours. Surfactant concentration was the most influential variable in this regard (p< 0. 0001). Discussion & Conclusion: The separation of Phenanthrene and Cadmium from the soil through the help of surfactants is an effective technique for remediation of contaminated soil.

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APA: Copy

Harati, Motahareh, & REZAEI KALANTARY, ROSHANAK. (2021). Optimization of Soil washing process in the presence of Tween 80 and EDTA compounds in removing PAHs and Cadmium by method BBD contaminants from contaminated soil. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 22(11 (102) ), 143-155. SID. https://sid.ir/paper/393359/en

Vancouver: Copy

Harati Motahareh, REZAEI KALANTARY ROSHANAK. Optimization of Soil washing process in the presence of Tween 80 and EDTA compounds in removing PAHs and Cadmium by method BBD contaminants from contaminated soil. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY[Internet]. 2021;22(11 (102) ):143-155. Available from: https://sid.ir/paper/393359/en

IEEE: Copy

Motahareh Harati, and ROSHANAK REZAEI KALANTARY, “Optimization of Soil washing process in the presence of Tween 80 and EDTA compounds in removing PAHs and Cadmium by method BBD contaminants from contaminated soil,” JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 22, no. 11 (102) , pp. 143–155, 2021, [Online]. Available: https://sid.ir/paper/393359/en

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