摘要
本研究选定自配水(含挥发酚和Cr6+)为供试水样,以粉煤灰、石英砂、铁粉以及它们的混合物为反应介质,通过对比实验可知,粉煤灰对挥发酚有一定的吸附作用,平均去除率可以达到48.4%,但对Cr6+的吸附作用很弱。而零价铁由于具有很强的还原性,与水中的Cr6+能有效的发生氧化还原反应,所以对Cr6+的处理效果非常好,平均去除率达到了99%左右。
Selecting the water configuration to study as raw water,Three reaction medias（zero-valent-iron,fly ash and Quartz sand） were used to design several kinds of permeable reactive barriers（PRB）,The experimental results show that fly ash has good adsorption to remove the volatile phenol,the average removal ratio is 48.4%,but it is almost useful for removing Cr6＋.The zero-valent-iron as a strong reduction,the Cr6＋ in water can be removed effectively by the redox reaction.the average removal ratio reach to 99%.
出处
《粮食流通技术》
2011年第3期15-17,32,共4页
Grain Distribution Technology
关键词
可渗透反应墙
反应介质
去除率
影响因素
permeable reactive barrier
reaction medias
removal ratio
the influencing factors
