改性沸石混合矿物对富营养化水中磷的吸附性能研究  

STUDY ON ADSORPTION PROPERTIES OF PHOSPHORUS FROM EUTROPHIC WATER BY MODIFIED ZEOLITE WITH OTHER MINERALS MIXED

作　　者：叶志平[1] 王凤英[1] 何国伟[2] 

机构地区：[1]华南师范大学化学与环境学院,广东广州510631 [2]广州大学环境科学与工程学院,广东广州510006

出　　处：《华南师范大学学报（自然科学版）》2011年第2期91-96,共6页Journal of South China Normal University(Natural Science Edition)

基　　金：粤港关键领域重点突破项目(2009498C21);广州市番禺区科学技术局项目(2009-Z-59-1)

摘　　要：利用广东丰富的沸石矿产资源,组合比表面积大的矿物材料,经改性后,形成吸附和交换量大的混合矿物,去除模拟富营化水质中的磷.结果表明,混合矿物脱磷效果显著,静态实验对含磷0.5 mg/L的富营养化水中磷的去除率达95.07%;动态实验中,混合矿物对磷的吸附与流量有关,饱和吸附量为0.26-0.29 mg/g;并且对混合矿物的脱磷机理进行了探讨.Guangdong Province is rich in zeolite resource.Combined zeolite with other minerals of large specific surface,a modified zeolite with a high capacity of adsorption and ion exchange was made and was use to remove phosphorus from simulated eutrophic water.The experimental results showed that the dephosphorization effect was excellent,which removed phosphorus up to 95.07% from the water with 0.5 mg/L phosphorus in static tests.In dynamic experiments,the adsorption capacity of the mixed material was related to the flow amount of water and its content of phosphorus.The saturated adsorption capacity was 0.26 to 0.29 mg phosphorus per gram of the material.The experimental process and its results were also discussed in the paper as well as adsorption mechanism of the material.

关 键 词：改性沸石混合矿物 富营养化水 磷 吸附 

分 类 号：X524[环境科学与工程—环境工程]