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DEVELOPMENT OF NANO MULLITE BASED MESOPOROUS SILICA BIOCER WITH INCORPORATED BACTERIA FOR ARSENIC REMEDIATION

By S. Kar, P. Nandy, Basu R and Das S

Abstract

Nanomullite based silica matrix was employed to entrap an arsenic(As(V)) degrading bacteria using sol-gel process. The bacteria were cultured in arsenic environment in their sub-MIC concentration to acclimatize and direct them to utilize arsenic. The matrix with and without microorganisms were characterized by FESEM and BET surface area. The bacteria remained 75% viable within the matrix as monitored up to 120 days. The enzymatic activity was also observed by fluorescein diacetate assay. The mullite assisted silica biocer provides a good material for bacteria entrapment preserving its metabolic activity therefore may be utilized as a possible candidate for arsenic remediation matrix

Topics: Biocer, Mullite, Silica; Arsenic bacteria, Entrapment, Viability, Clay industries. Ceramics. Glass, TP785-869
Publisher: University of Chemistry and Technology, Prague
Year: 2016
OAI identifier: oai:doaj.org/article:a14c756fdc4e49dd8c3cc2cdc416b450
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