A team of scientists from CSIR-Indian Institute of Chemical Technology (CSIR-IICT) have designed a unique Effluent Treatment Plant (ETP) for industrial aroma chemicals, based on a high rejection hyperfiltration membrane technology, it was announced on Friday.
Chief scientist S. Sridhar and principal investigator-senior scientist S. Chandra Sekhar from the Membrane Separations Laboratory designed the plant for the U.K. Aromatics Pvt. Ltd., Boisar, Maharashtra.
The effluent is a condensate coming from a multiple-effect evaporator (MEE) containing considerable content of total dissolved solids (TDS), turbidity, and colour besides high chemical oxygen demand (COD) levels due to the presence of significant concentrations of aroma chemicals such as esters, flavours, and perfumes with smaller concentrations of toluene and cyclohexane solvents used in azeotropic distillation for isolation of the esters.
