Detection of Water Purity Levels by Using Biofilm as A Bio-Chip

Abstract

Arka Mukhopadhyay, Nalok Dutta and Krishanu Chakraborti

Waste water treatment is the process of removing contaminants from wastewater. It includes physical, chemical, and biological processes to remove these contaminants and produce environmentally safe treated wastewater. The present work relates to a microbial technology enabled method in which biofilm, formed by a single psychrophilic bacterial culture, was used as a biochip to detect the water impurities. There was an optimum concentration limit of different metals and organic compounds of drinking water set by ISI and WHO. Here different metals, like Ca2+, Cu2+, Fe3+, Mg2+, Mn2+, Zn2+, Ar2+, Hg2+ and organic compounds, like benzene, toluene, DMSO, Di-Chloro phenol, chloroform were mixed with water at higher concentration than the optimum limit. Now the impurities of that contaminated water was detected by the biofilm destruction method. The change of Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) of different water samples were also detected by the biofilm destruction.

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