电气石/TiO_2复合材料光催化深度处理垃圾渗滤液研究

Study on advanced treatment of landfill leachate with tourmaline/TiO_2 composite photocatalysts

采用电气石/TiO2复合光催化材料深度处理垃圾渗滤液,研究了反应时间、催化剂投加量、pH等因素对处理效果的影响。结果表明,在pH为8～9,光催化剂投加质量浓度为0.4 g/L,反应时间为150 min的条件下,垃圾渗滤液中COD、色度、Cu2+和Pb2+的去除率分别可达89%、100%、98%和99%,该技术在垃圾渗滤液的深层处理领域展示了良好的应用前景。

Tourmaline/TiO2 composite photocatalysts have been used for treating landfill leachate. The effects of influential factors, such as reaction time, catalyst dosage, pH, etc. on the treatment efficiency are studied. The results show that when its pH is 8-9, mass concentration of tourmaline/TiO2 composite photoeatalysts 0.4 g/L, and reaction time 150 min,the removal rates of COD,CuR＋and pbE＋could be up to 89% ,98% and 99% ,respectively,and decolorization rate reaches 100%. Tourmaline/TiO2 composite photocatalysts show a good application prospect in the field of advanced treatment of landfill leachate.