ABR反应器对垃圾渗滤液的处理试验研究

ABR工艺在处理垃圾渗滤液中具有其他厌氧生物反应器所达不到的优点。尤其是对B/C低、氨氮浓度高、COD浓度高的废水处理,通过调节回流比、HRT、碱度等参数后,可以取得很好的处理效果。在本次实验中,HRT控制在18h后明显提高的垃圾渗滤液的可生化性及C/N,使ABR出水CODcr去除率达到75%,C/N为6.72,对后续好氧反应起到了重要作用。在调控一定回流比后,为提供厌氧氨氧化所需的电子受体NO-3和NO-2实现脱氮。反应器在经过120d的培养驯化,氨氮进水为460mg/L,ABR对氨氮的去除率稳定在80%。不同格室的厌氧颗粒污泥都得到很好的驯化并在其合适的环境中发挥各自的功能。

Study on Treatment of Landfill Leachate by Anaerobic Baffled Reactor

ABR process in handling landfill leachate has some characteristics which other anaerobic biological reactor did not have, especially in low B/C, high concentration of ammonia nitrogen, high COD wastewater treatment. After regulating parameters of the reflux ratio , HRT and alkalinity, can obtain very good treatment effect. This experiment of HRT control in 18h, obviously improving biodegradability and C/N of landfill leachate, CODcr removal of effluent control in 75%＇, C/N for 6.72, subsequent aerobic biological reaction have been improved. Regulation reflux ratio for provide requirement electronic receptors of NO3^- and NO2^- to anaerobic ammonium oxidation, realize denitrification, after cultivate domestication for 120 days, ammonia nitrogen of influent water was 460mg/L, ammonia nitrogen removal stability in 80%. Different cell chamber anaerobic granular sludge have been well domesticated and in the fight environment to play their respective functions.