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在上流式好氧颗粒污泥床反应器中,以厌氧颗粒污泥和好氧絮状活性污泥为接种泥,采用人工配制的模拟废水,成功培养出性能优异的好氧颗粒污泥.反应器内污泥浓度稳定在5g/L左右,颗粒污泥粒径为0.5～2.0mm,当进水COD为2000mg/L,容积负荷为4.8kg/(m3·d)时,系统对COD的去除率稳定在96%以上.通过扫描电镜观察,好氧颗粒污泥是层状结构,表面有大量丝状菌缠绕,内部有短杆菌和空穴存在.逐步提高制药废水在进水中的比例,经过47d的培养,生物制药废水完全取代模拟废水,系统对COD、NH3-N、TP的去除率分别稳定在90%、90%和70%以上.
In the upflow aerobic granular sludge bed reactor, anaerobic granular sludge and aerobic flocculent activated sludge were inoculated with the simulated artificial wastewater and the aerobic granular sludge with excellent performance was successfully cultivated. The concentration of sludge in the reactor is about 5g / L, the particle size of the granular sludge is 0.5-2.0mm, when the influent COD is 2000mg / L and the volume load is 4.8kg / (m3 · d) The removal rate is stable at above 96% .According to the scanning electron microscope, the aerobic granular sludge is a lamellar structure with a large amount of filamentous filament wound on the surface and the presence of Brevibacterium sp. And holes inside. Gradually increase the proportion of pharmaceutical wastewater in the influent After 47 days of cultivation, biopharmaceutical wastewater completely replaced the simulated wastewater. The removal rates of COD, NH3-N and TP were stable at 90%, 90% and 70% respectively.