Sbr Reactor Cultivation Of Aerobic Granular Sludge And Its Major Degradation Of Pollutants

Aerobic granular sludge technology is developed on the basis of the anaerobic granular sludge technology,in recent years,due to better removal of pollutants, Especially its strong nitrogen and phosphorus removal capacity has attracted the attention of scholars at home and abroad.This study were inoculated in a sequencing batch reactor seeded with anaerobic granular sludge and flocculent mud to train aerobic granular sludge feasibility study and train on the basis of different inoculation sludge aerobic granular sludgea more in-depth study. Focus on anaerobic granular sludge the inoculation sludge aerobic granular sludge decontamination performance; After inoculation sludge floc sludge, focusing on effects of adding a certain amount of activated carbon particles (AC) in the SBR reactor aerobic granular sludge formation.Aerobic granular sludge culture techniques provide some theoretical basis for this study.Anaerobic granular sludge, and a small amount of flocculent sludge SBR reactor seed sludge, With glucose as the carbon source preparation of simulated wastewater conditions, cultivate a mature aerobic granular sludge, the average particle size of the aerobic granular sludge approximately2.2mm SVI value about30ml/g, and the settling velocity is about58.4m/h.The final volume load of4.8kgCOD/(m3·d), COD,NH3-N,TN,TP removal efficiency were stable at95%,97%,85%and67%.In the SBR reactor was inoculated with sludge floc sludge reactor operating parameters and inoculation sludge anaerobic granular sludge same,Adding a certain amount of activated carbon particles (AC) as flocculent sludge trained to promote aerobic granular sludge formation of aerobic granular sludge induced nuclear, Train the mature AC aerobic granular sludge average particle size of about2.0mm,sludge average sedimentation rate of about60m/h. COD volumetric loading in the reactor for2.88kg/(m3·d), the removal rate of COD in more than95%. Ammonia influent concentration of200mg/L, the removal efficiency of the system of ammonia nitrogen stable at around98%, the effluent ammonia concentration was stabilized at5mg/L. SBR reactor seed sludge floc sludge, adding a certain amount of activated carbon particles (AC) culture as a flocculent sludge aerobic granular sludge induced nuclear, In the the reactor running to20d when the AC aerobic granular sludge ripe. Description aerobic granular sludge formation time have been greatly shortened.