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Removal of salts from dairy processors effluent via reverse osmosis - results from lab and pilot-scale trials

journal contribution
posted on 2008-04-01, 00:00 authored by L M Palmowski, K Jamil, C Reynjer, L Farago, S Jeyaseelan, Bas BaskaranBas Baskaran
The aim of this study was to investigate the feasibility of reverse osmosis (with micro- and ultrafiltration pre-treatment) for salt removal from various dairy liquid waste streams, including CIP caustic solutions, salty whey, ion exchanger regeneration solution and final effluent (after biological treatment). Laboratory scale investigations were carried out on all the streams mentioned above followed by pilot-scale trials on spent caustic solutions and salty whey. Samples were analysed for pH, electrical conductivity, total suspended solids, chemical oxygen demand and nutrients. The trials demonstrated the suitability of reverse osmosis (with micro- and ultrafiltration pre-treatment) for salt removal from various liquid streams from dairy industries. However, the options for the concentrated retentate stream need further consideration in most cases.

History

Journal

Australian Journal of Dairy Technology

Volume

63

Issue

1

Pagination

15 - 20

Publisher

Dairy Industry Association of Australia

Location

North Melbourne, Vic.

ISSN

0004-9433

Language

eng

Publication classification

CN.1 Other journal article

Copyright notice

2008, Dairy Industry Association of Australia

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