IN SITU GENESIS OF SILVER NANO IN POROUS CONCRETE PEBBLES USING GREEN TECHNOLOGY AND ITS APPLICATION FOR MICROBIAL DECONTAMINATION OF WATER

摘要

The present invention relates to silver nanoparticles based water purification system. The nanoparticles are generated in situ and embedded within the porous concrete pebbles. The system provides around 99 % decontamination of microbial load in the treated water. The pH of the treated water also remains in the normal range (i.e. 7 to 7.1). The green technology based silver nano embedded pebbles has very good reusability and shows insignificant decrease in microbial decontamination efficacy even after 20-25 uses of the same pebbles within a time span of 6 months.