Dispersion of Escherichia coli Contaminated Water Using Multiwall carbon nanotube

Abstract

Escherichia coli (E. coli) is one of the pathogenic bacterium which is gram-negative, facultative anaerobic causes several water borne diseases. In this work, Multiwall Carbon nanotube (MWCNT) of varying amount was dispersed in E. coli contaminated water. The rate of inactivation of E. coli cells was varied while the dispersion time and amount of materials were changed. Maximum percentage removal of E. coli was found about 37.42% using 2 $g/l$ of MWCNT the contaminated water. While dispersing the same solution for 15 min using a vortex mixture, the percentage removal of E. coli was increased to 61.13% and for dispersing 30 min the percentage removal of E. coli was increased to 68.740%. Maximum percentage removal was found about 92.56% using 15 $g/l$ MWCNT which was dispersed for 30 min. Thus our investigation proves that MWCNT can be an efficient bacterial adsorbent for providing safe water for human consumption.