International Journal of Engineering Research

Pradnya H. Athawale ¹, V. S. Sapkal ¹, R. S. Sapkal ¹

Affiliations
1 University Department of Chemical Technology Sant Gadge Baba Amravati University, Amravati, (444602) M.S., IN

Abstract

The current issue of responsible environmental management adds pressure on the dairy industry to reduce demands for energy, chemicals and water. So from the CIP solution recover NaOH&HNO3 used membrane filtration techniques like nanofiltration and after that reconcentration using reverse osmosis. Nanofiltration reduced the COD content of the caustic washing solution by 76-90% depending on the concentration ratio used. The alkaline/acid content of the nanofiltration permeate was similar to the feed. By reverse osmosis treatment alkaline NF permeates were concentrate NaOH.

Keywords

CIP Solution, Nanofiltration, Reverse Osmosis, COD, BOD, NaOH, HNO₃.

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