Current Trends in Science and Technology

an Open Access Publication ISSN: 0976-9730 | 0976-9498

Engineering and Technology

Restoration of Physico-Chemical Properties of Zinc Contaminated Soil by Bacterial Biosurfactant

Jayalatha N. A, Veena Kumara Adi
1Environmental Engg, Civil Engg Department, National Institute of Technology karnataka, Srinivas Nagara, Surathkal, Mangalore, 575025, Karnataka E-Mail id: 2P.G Department of Environmental Engineering, Civil Engg Department,Bapuji Institute of Engineering and Technology, Davangere 577004, Karnataka, INDIA E-Mail id:
Online First: October 12, 2017
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The environmental is being polluted due to rapid urbanization and industrialization. Zinc, a widespread soil contaminantget dumped into soil from a numerous anthropogenic source. Due to heavy metal contamination the soil properties drastically change and adversely effect the ecosystem.  In the present study two distinct soil types viz sandy soil and black cotton soil were studied. The sandy soil and black cotton soil experimental soil samples were artificially contaminated with zinc metal solution. The aim of the study is to understand the soil properties of uncontaminated soil; variations in the soil properties due to Zinc metal contamination; and seek remediation and by restoring the lost properties. Column studies were conducted. As a remedial tool, three agents were used viz., a Biosurfactant, a synthetic surfactant (SDS) and water was deployed for the restoration of soil properties.  The results show that Biosurfactant could effectively and efficiently restore the lost physico-chemical properties (due to zinc contamination).

Keyword : Zinc contamination, heavy metal, Biosurfactant, bioremediation, restoration

Oct 12, 2017
Oct 12, 2017
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