Remediation of As Contaminated Soil using Phosphate and Colloidal Gas Aprons Suspension produced from Sapindus Mukorossi

Soumyadeep Mukhopadhyay; Sumona Mukherjee; Mohd Ali Hashim; Bhaskar Sen Gupta

doi:10.1007/s00128-016-1878-4

Remediation of As Contaminated Soil using Phosphate and Colloidal Gas Aprons Suspension produced from Sapindus Mukorossi

Soumyadeep Mukhopadhyay, Sumona Mukherjee, Mohd Ali Hashim, Bhaskar Sen Gupta

Research output: Contribution to journal › Article › peer-review

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Abstract

Phosphate and colloidal gas aphrons (CGAs) generated from saponin extracted from Sapindus mukorossi fruit, were evaluated for washing low levels of arsenic from an iron rich soil. Phosphate is one of the most commonly dispersed chemicals that increases arsenic mobility in soil due to their structural similarities, making it an important factor in arsenic removal process. Column washing experiments were performed with CGAs in down flow and up flow modes on soil of pH 5 and 6. Soapnut CGAs, when paired with phosphate removed up to 95 % arsenic while soapnut CGAs alone could only remove up to 70 % arsenic. The presence of phosphate improved efficiency of soapnut solution by up to 35 %. SEM image of washed soil revealed minor corrosion of soil surface while using phosphate with soapnut. Therefore, the addition of phosphates would have positive impact on soil washing using soapnut saponin.

Original language	English
Journal	Bulletin of Environmental Contamination and Toxicology
Volume	98
Issue number	3
Early online date	13 Jul 2016
DOIs	https://doi.org/10.1007/s00128-016-1878-4
Publication status	Published - Mar 2017

Keywords

Soapnut
Sapindus mukorossi
Soil remediation
Colloidal Gas Aphrons

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10.1007/s00128-016-1878-4

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title = "Remediation of As Contaminated Soil using Phosphate and Colloidal Gas Aprons Suspension produced from Sapindus Mukorossi",

abstract = "Phosphate and colloidal gas aphrons (CGAs) generated from saponin extracted from Sapindus mukorossi fruit, were evaluated for washing low levels of arsenic from an iron rich soil. Phosphate is one of the most commonly dispersed chemicals that increases arsenic mobility in soil due to their structural similarities, making it an important factor in arsenic removal process. Column washing experiments were performed with CGAs in down flow and up flow modes on soil of pH 5 and 6. Soapnut CGAs, when paired with phosphate removed up to 95 % arsenic while soapnut CGAs alone could only remove up to 70 % arsenic. The presence of phosphate improved efficiency of soapnut solution by up to 35 %. SEM image of washed soil revealed minor corrosion of soil surface while using phosphate with soapnut. Therefore, the addition of phosphates would have positive impact on soil washing using soapnut saponin.",

keywords = "Soapnut, Sapindus mukorossi, Soil remediation, Colloidal Gas Aphrons",

author = "Soumyadeep Mukhopadhyay and Sumona Mukherjee and Hashim, {Mohd Ali} and {Sen Gupta}, Bhaskar",

year = "2017",

month = mar,

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journal = "Bulletin of Environmental Contamination and Toxicology",

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T1 - Remediation of As Contaminated Soil using Phosphate and Colloidal Gas Aprons Suspension produced from Sapindus Mukorossi

AU - Mukhopadhyay, Soumyadeep

AU - Mukherjee, Sumona

AU - Hashim, Mohd Ali

AU - Sen Gupta, Bhaskar

PY - 2017/3

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N2 - Phosphate and colloidal gas aphrons (CGAs) generated from saponin extracted from Sapindus mukorossi fruit, were evaluated for washing low levels of arsenic from an iron rich soil. Phosphate is one of the most commonly dispersed chemicals that increases arsenic mobility in soil due to their structural similarities, making it an important factor in arsenic removal process. Column washing experiments were performed with CGAs in down flow and up flow modes on soil of pH 5 and 6. Soapnut CGAs, when paired with phosphate removed up to 95 % arsenic while soapnut CGAs alone could only remove up to 70 % arsenic. The presence of phosphate improved efficiency of soapnut solution by up to 35 %. SEM image of washed soil revealed minor corrosion of soil surface while using phosphate with soapnut. Therefore, the addition of phosphates would have positive impact on soil washing using soapnut saponin.

AB - Phosphate and colloidal gas aphrons (CGAs) generated from saponin extracted from Sapindus mukorossi fruit, were evaluated for washing low levels of arsenic from an iron rich soil. Phosphate is one of the most commonly dispersed chemicals that increases arsenic mobility in soil due to their structural similarities, making it an important factor in arsenic removal process. Column washing experiments were performed with CGAs in down flow and up flow modes on soil of pH 5 and 6. Soapnut CGAs, when paired with phosphate removed up to 95 % arsenic while soapnut CGAs alone could only remove up to 70 % arsenic. The presence of phosphate improved efficiency of soapnut solution by up to 35 %. SEM image of washed soil revealed minor corrosion of soil surface while using phosphate with soapnut. Therefore, the addition of phosphates would have positive impact on soil washing using soapnut saponin.

KW - Soapnut

KW - Sapindus mukorossi

KW - Soil remediation

KW - Colloidal Gas Aphrons

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