Performance of Aerobic MBR Treating High Strength Oily Wastewater at Mesophilic –Thermophilic Transitional Temperatures
نویسندگان
چکیده
The performance of an aerobic membrane-coupled bioreactor (MBR) operating at mesophilicthermophilic transitional temperatures (40 ̊C) treating oily rendering wastewater has been evaluated in terms of COD, BOD5, oil and grease, solids and ammonia removal at 5 and 10-day HRT. The COD removal efficiency increased from 78% to 96%, BOD5 removal from 87 to 99% and oil and grease removal from 92 to 95% with the increase in hydraulic retention time (HRT) from 5 to 10 days. The operation at atypically high temperatures showed promise as a treatment solution due to the low sludge yields of 0.03 g VSS/g COD.
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