ACTIVATED SLUDGE PROCESS USING ULTRAFILTRATION AND CONCENTRATED OXYGEN
摘要
<p>preparing concentrated oxygens with 2-bed oxygens PSA charged with zeolite X at the oxygen concentration of 90-93% and a pressure of 0.7-1 kg/cm2; feeding the concentrated oxygens into a closed multistage active sludgy reactor to supply dissolved oxygens sufficient to maintain the high concentration of 3-15 g/l; and separating the active sludge with a tubular ultramicroscopic filter layer at a circulation linear rate of 1-3 m/s.</p>
