Cultivating aerobic granular sludge in a developed continuous-flow reactor with two-zone sedimentation tank treating real and low-strength wastewater

摘要

Graphical abstractDisplay OmittedHighlights?Granules is formed successfully in CFR-TST treating real and low-strength wastewater.?Micropowder acting as nuclei can promote bacteria attachment in conventional CFR.?Two-zone sedimentation tank (TST) can create selection pressure in conventional CFR.?TST make well settling granules retained in CFR and poorly settling flocs washed out.AbstractA continuous-flow reactor with two-zone sedimentation tank (CFR-TST) was developed to evaluate the formation of aerobic granular sludge (AGS). Micropowder made of excess sludge was added for a while in the CFR-TST, and select