PFM处理垃圾渗滤液的混凝效果与微观形态分析

Coagulation performance and microstructure morphology of poly-ferric( Ⅲ)-magnesium( Ⅱ) for treating landfill leachate

针对垃圾渗滤液的污染特性,研究了铁镁复合混凝剂(PFM)的混凝效果及其微观形态。结果表明:在相同的实验条件下,相对于其他无机混凝剂,PFM处理垃圾渗滤液有更好的混凝效果,对COD和色度的去除率分别达60%和80%以上;PFM发挥了铁盐与镁盐组分的各自混凝优势;红外光谱和X射线衍射分析结果显示,铁镁复合混凝剂PFM是以羟基桥联的铁镁共聚物。

Based on the characteristics of landfill leachate pollution, the coagulation performance and microstructure morphology of poly-ferric （Ⅲ）-magnesium （Ⅱ） （ PFM） were studied. The results show that, under consistent experimental conditions, the PFM has better coagulation performance in dealing with landfill leachate compared with other inorganic coagulants. The removal rates of COD and chroma exceeded 60% and 80%, respectively, when the PFM was used. The PFM can fully display the superiorities of the iron component and the magnesium component in coagulation. The XRD and FTIR analyses show that the PFM is a kind of macromolecular composite polymer of iron and magnesium based on hydroxyl bonding.