Control of sulfides and coliphage MS2 using hydrogen peroxide and UV disinfection for non-potable reuse of pilot-scale anaerobic membrane bioreactor effluent.

ABSTRACT: Anaerobic membrane bioreactors reduce the energy cost of wastewater treatment and meet filtration requirements for non-potable reuse. However, sulfides (H₂S/HS^-) formed during anaerobic treatment exert a high chlorine demand and inhibit UV disinfection by photon shielding at 254 nm. This study evaluated the feasibility of hydrogen peroxide (H₂O₂) for sulfide oxidation, UV disinfection for inactivation of MS2 bacteriophage, and chlorine to provide a residual for distribution. H₂O₂ treatment at pH ≥ 8 favored sulfide oxidation to sulfate in 30 min at a 4:1 H₂O₂:sulfide stoichiometry. Compared to a 6:1 H₂O₂:sulfide molar ratio, treatment of anaerobic effluent with 0.5 mM sulfides with

SUBMITTER: Szczuka A 

PROVIDER: S-EPMC8005849 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature