Research on Treatment of Landfill Leachate Polluting Groundwater by Orthogonal Test

• 作者: Li Jialiang Shan Changqing
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 地下水污染 垃圾渗滤液 正交试验 治疗效果 化学需氧量 填埋场渗滤液 反应介质 相互作用
• 年，卷（期）: 2014,（9）
• 页码范围: 53-56
• 页数: 4页
• 分类号: X523

摘要

Through PRB simulated device and orthogonal test,we discussed the treatment effect of groundwater polluted by landfill leachate with three reaction mediums of zero-valent iron powder,activated carbon and zeolite. We considered four factors of iron powder mass,activated carbon mass,particle size of iron powder and zeolite mass,and designed a two-level orthogonal test. It concluded that effluent pH appeared to fall or rise as the reaction proceeded,which changed during 7- 8. The removal rates of CODCrin eight reactors were during 60. 7%- 78. 3%,and the removal rates of NH3-N were during 34. 0%- 58. 8%. Activated carbon mass and the interaction of iron powder mass and activated carbon mass had significant influences on the removal of CODCr,while iron powder mass,particle size of iron powder and zeolite mass had insignificant influences on the removal of CODCr. Zeolite mass and activated carbon mass had significant influences on the removal of NH3,while iron powder mass,particle size of iron powder and the interaction with activated carbon mass had insignificant influences on the removal of NH3-N.