The Effects of System Scale-Up on Membrane Performance, Packing Density, and Mixed Liquor Properties: A Two-Year Study

Author: Pawloski J.   Peeters J.   Ginzburg B.   Chang S.  

Publisher: Water Environment Federation

ISSN: 1938-6478

Source: Proceedings of the Water Environment Federation, Vol.2008, Iss.1, 2008-01, pp. : 343-359

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

A two-year study of the impact system scale has on short-term fouling rates and long-term membrane performance was conducted. Four system scales; bench, module, cassette and plant were used. Bench and module scale systems were found to be useful for evaluation of alternative membrane designs and operational parameters. Plant scale testing was found to be required for long-term performance validation. Monitoring of mixed liquor filterability at different system scales using colloidal TOC and time-to-filter revealed a tendency for smaller systems to react more rapidly and drastically to sudden process changes.

Related content