Study on Simultaneous Removal of Organic Matters and Nitrogen with Aeration Control in Highly Concentrated Activated Sludge Process Using Disk Type UF Membrane

Abstract

A study has been made on optimal operating condition capable of carrying out simultaneous removal of organic matters and nitrogen in a highly concentrated activated sludge process using rotary disk type UF membrane as liquid-solid separator.
From the experimental results, the optimal condition for operating time control aeration is deduced to be 30-min., aeration on and 30-min, aeration off, from the aspect of economic advantages such as costs involved in aeration.
The optimal operation in this study was found at ORP centering about 50 to 100mV, with a certain level of fluctuation (±50 to ±75mV) .