Physical Characteristics of Bangkok Domestic Wastewater Treatment Using a Pilot Scale Membrane Bioreactor

บทคัดย่อ

Abstract

Submerged membrane bioreactor (MBR) is a high efficient technology for domestic wastewater treatment and reuse.  Physical characteristic of a pilot scale MBR for Bangkok domestic wastewater treatment was investigated in this study. The results showed that pH kept on in neutral range and dissolved oxygen (DO) remained stable around 3 mg/L.  Temperature, conductivity, oxidation-reduction potential (ORP) were reasonably stable with small fluctuation across a 45 day test period. The MBR displayed excellent filterability with no significant turbidity in the effluent.  With constant flux, the membrane showed a considerable development of a fouling growth rate in the system.