Removal of Phenolic Compound from Bangalore Nelagadaranahalli Lake Using PS-PEI Blend

Abstract

Membrane technology plays vital role in water purification. India losing many lakes due to either encroachment or pollution. Lakes supposed to be water source instead it is now becoming waste dump yard. Addressing these problems there is great need to identify sustainable methods of purifying lake water at lower cost and with less energy, while at the same time minimizing the use of chemicals and impact on the environment. We developed the cross-membrane filtration technique to remove phenolic compound from Nelagadaranahalli lake, Peenya industrial area, Bangalore, Karnataka, India. This research work carried out in our lab has successfully demonstrated the removal of phenolic compound from contaminated water lake, utilizing Polyetherimide (PEI) - Polysulfone (PS) membrane. This research work describes the methodology for preparation of membranes by ‘diffusion induced phase separation’ (DIPS) method. As per WHO standard the optimal phenol content in drinking water must be in the range of 1.0 micro g/L hence the prepared membrane performance has been investigated in terms of important parameters like pure water permeability, and percentage rejection of phenol compound.