凹凸棒石的碱酸改性及除磷效果探究  

Modification of palygorskites by alkali-acid and the effect of the phosphorus removal

作　　者：张建民[1] 周磊[1] 刘玉涛[1] 路洪涛 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048 [2]陕西省现代建筑设计研究院,陕西西安710048

出　　处：《西安工程大学学报》2013年第6期760-763,共4页Journal of Xi’an Polytechnic University

摘　　要：比较分析了不同酸、碱及酸碱复合改性凹凸棒石对模拟含磷废水的吸附净化性能,并探讨了不同改性对凹凸棒石磷吸附性能的影响.结果显示,当凹凸棒石与质量分数为9%的盐酸在固液比为1∶2条件下改性,磷吸附效率达53.59%.NaOH先与凹凸棒石1∶1混合均匀后焙烧改性,再将碱改性后的凹凸棒石与质量浓度为9%的盐酸在固液比为1∶2再进行改性,吸附效率高达99%以上即碱酸复合改性的凹凸棒石极大地提高了其对磷的吸附效率.compoun The p d to th urify and adsorb function e simulation waste water The adsorb phosphorus function of palyg ted initially. The results show that the ad of palygorskites and hydrochloric acid sol sorption productivity is 53.59%. Tt solution which contains 9% double tremely enhanced by the acid-alkali high as 99 %. of pal which orskit sorpti ution ss rat led w compound ygorskites modified by different acid,alkali and acid-alkali contained the phosphorus were compared and analyzed. es which modified by different substances was investiga- on effect of phosphorus is improved when the mass ratio which contains 9 % double distilled water is 1 ： 2, the ad- io of alkali modified palygorskites and hydrochloric acid ater is 1 ： 2, the adsorption effect of phosphorus is ex- palygorskites and the adsorption efficiency achieves as

关 键 词：凹凸棒石 碱酸改性 吸附除磷 

分 类 号：X524[环境科学与工程—环境工程]