改性海泡石对垃圾渗滤液吸附性能研究

摘要

通过制备以海泡石为载体的负载聚乙烯吡咯烷酮( PVP)/海泡石吸附剂,研究PVP/海泡石对垃圾渗滤液的吸附作用。垃圾渗滤液经过初步处理后,在不同的浓度、 pH、吸附剂投加量下测量吸附后的总有机碳,在不同的吸附时间点测量相应的总有机碳和化学需氧量。实验结果表明垃圾渗滤液的吸附最佳效果的条件为： PVP/海泡石投加量为0．12 g, pH为3,垃圾渗滤液稀释10倍时TOC单位降解量为10．04 mg/g, COD降解率为59．22%。%Adsorption of landfill leachate was studied by the use of carried polyvinylpyrrolidone ( PVP ) on sepiolite. After the primary treated landfill leachate, total organic carbon was measured at different concentrations, pH and adsorbent dosage and the corresponding TOC and COD was tested at different points in time. Experimental results showed that the adsorption of landfill leachate best conditions were as follows:PVP/sepiolite dosage was 0. 12 g, pH value was 3, diluted 10-fold landfill leachate, the unit amount of TOC degradation was 10. 04 mg/g, and COD degradation got a rate of 59. 22%.