摘要
选用有代表性的染料和酚两类性质不同的污染物质为吸附质 ,凹凸棒石粘土和各种方法改性的凹凸棒石粘土为吸附剂进行了吸附对比实验研究。实验发现用 1M磷酸改性能大幅度提高凹凸棒石粘土对染料和酚等污染物的吸附能力。并且认为凹凸棒石粘土的吸附属于外表面吸附—胶体和离子交换吸附 ,改性作用提高凹凸棒石粘土吸附性能的机理是改性加工改变了凹凸棒石粘土中粘土颗粒的结构电荷和表面电荷及吸附活性。
The adsorbing capability of dye and hydroxybenzene is compared by palygorskite clay and various modified palygorskite clay. It is found that adsorbing capability of dye and hydroxybenzene may be improved largely by palygorskite clay which is modified with 1 M phosphoric acid. it is thought that the adsorption of palygorskite clay is outer surface adsorption colloid and ion exchange adsorpsion. the mechanism of the modification which improves the adsorbing capacity of palygorskite clay is that the structural electric charge and surface electric charge of the clay granules in palygorskite and adsorbing activity are modified.
出处
《工业水处理》
CAS
CSCD
2000年第4期27-29,共3页
Industrial Water Treatment
关键词
凹凸棒石粘土
吸附
染料
废水处理
palygorskite clay
adsorption
wastewater
dye
phenol
