Treatment of reverse osmosis concentrate using an algal-based MBR combined with ozone pretreatment.

ABSTRACT: Algal treatment was combined with ozone pretreatment for treatment of synthetic reverse osmosis concentrate (ROC) prior to microfiltration. The research mainly focused on minimizing the fouling of polyvinylidene-fluoride membranes and maximizing the restoration of membrane permeability. The algal treatment alone was only moderately effective for the mitigation of fouling in microfiltration, while a markedly improved performance was achieved when the algal treatment followed ozonation. The combination of ozonation and algal treatment reduced membrane permeability decline and significantly (p < 0.05) increased the reversibility of fouling after hydraulic washing. A longitudinal evaluation was also performed with a goal of achieving a robust removal of contaminants. Ozonation followed by alga

SUBMITTER: Woo H 

PROVIDER: S-EPMC6743077 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature