UV/H_2O_2高级氧化+MBR工艺处理垃圾渗滤液的研究

Study of the Treatment of Landfill Leachate by Combination Process of AOPs+MBR

采取UV/H_2O_2+膜生物反应器组合工艺深度处理垃圾渗滤液,研究工艺对有机物及氨氮处理效果。结果表明,当工艺条件为双氧水投加量为2.1 g(H_2O_2)/g(COD),pH呈弱酸性,反应时间2 h、温度30℃左右时,UV/H_2O_2工艺处理效果好。MBR反应器对UV/H_2O_2工艺段出水中有机物的生化降解效果显著,出水有机物去除率稳定在80%以上。

The landfill leachate contains a lot of difficult degradable organic matters and ammonia nitrogen. The paper adopts the combination process of UV/H2O2＋MBR handling the landfill leachate, and study the organic matter and ammonia nitrogen treatment effect by process. The experimental result shows the process treatment effect is good when the process conditions as hydrogen peroxide dosing quantity for 2.1 g（H2O2）/g（COD）, p H in weak acid, reaction time 2 h, the temperature about 30 ℃. The MBR has obvious effect of biochemical degradation for the organic matter in water after UV/H2O2 process section, keep more than 80 % removal rate of organic matter.