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    Effect of organic carbon to nutrients (nitrogen and phosphorus) ratios on the performance of a novel microalgal-bacterial membrane photobioreactor

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    Thesis (5.323Mb)

    Date

    2021

    Author

    Lafi, Hana

    Degree

    Master of Science

    Discipline

    Engineering : Civil

    Subject

    Membrane technology
    Membrane fouling
    Chemical oxidation demand
    Sustainable wastewater treatment

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    Abstract

    This thesis aims to investigate the impact of Chemical Oxidation Demand (COD) to Nitrogen (N) ratio (COD/N) in influent on the biological and membrane performance of a novel Microalgal-Bacterial Membrane Photobioreactor (MB-MPBR). In the meantime, the influence of the COD/N ratio on biomass concentration, productivity and their influence on membrane fouling was studied using a well-controlled MB-MPBR receiving a synthetic medium-strength municipal wastewater containing glucose as a carbon source for a long term operational period (300 d). The COD/N ratio increases from 10.3:1, 13.9:1 and 16.8:1 throughout three phases of operation led to a remarkable amelioration in nutrients (N and Phosphorus (P)) removal, a COD removal was above 95% regardless of COD/N ratio, and the membrane performance also improved. The results suggested the capability of MB-MPBR for simultaneous removal of COD and nutrients in a single step. [...]

    URI

    https://knowledgecommons.lakeheadu.ca/handle/2453/4885

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