การศึกษาประสิทธิภาพของถังปฏิกรณ์ชีวภาพเมมเบรนแบบไร้อากาศ : กรณีศึกษาน้ำชะมูลฝอย

Abstract

This research had studied the efficiency of anaerobic membrane bioreactor (AnMBR) for leachate treatment. The system was operated at different organic loading rates (OLR) at 3, 6, 8 and 12 kg COD/m day. The results found that the COD removal efficiencies highest biogas production was found at the OLR of 12 kgCOD/m.d, high degradation and accumulation volatile fatty acids resulted in high CH, production rates. The biogas production of 18.87 L/d and CH, production of 0.33+0.07 L CH./g CODcmoved were obtained by using OLR 12 kgCOD/mod. For the relationship between ORP and VFA, there was no significant difference in the organic loading rate. However, ORP can specify the range of the production of VFA. The ORP value was in the range of -340 to -347 mV for the highest VFA production. The ORP value was in the range -304 to -317 mV for the minimum VFA production. For the characterization of membrane foulants, the major foulant was the blockage of the cake layer or accumulation at the surface.