黏土改性后对垃圾渗滤液的化学作用研究

Study on the Chemical Action of Modified Clay on Waste Leachate

通过室内静态的实验方法 ,研究了在黏土中掺入不同比例的石灰后 ,黏土和石灰与垃圾浸泡液的作用。试验表明 :加入石灰的黏土比单独的黏土更有利于垃圾浸泡液中有机污染物的衰减 ,根据实验监测的 COD、 p H、 Eh、电导率等 ,确定在黏土中加入 1 0 %的石灰 ,可以很好地降解垃圾浸泡液中的有机物 ,而且这种比例组成的防渗材料具有较低的渗透性 。

Through some static laboratory experiments,actions of clay with different ratios of lime on waste leachate were researched.The results showed that better attenuation of the organic contamination of the leachate could be achieved by putting lime to clay.Based on the measurements of COD,pH,Eh,conductivity,it was found that when 10% lime is put into to clay,the organic contamination of leachate could be degraded effectively,and that it has lower permeability,better performance as a liner for waste landfill site.