Anuradha J Investigation on the role of trivalent aluminium on the performane of UASB reactor - Pondicherry Centre for Pollution Control & Energy technology,PU 2006 - 172p, 32cm Duplicate of 3857 Subjects--Index Terms: Ecology Trivalent Performance of UASB reactor M.Phil Duplicate Dewey Class. No.: 574.5 / ANU