摘要
本文综述了近十年来可溶态铝在水体、土壤溶液及水和土壤矿物界面上的水解、聚合、絮凝和沉积行为及其形态转化过程和机理的研究进展,系统地总结并评价了目前已经报道过的各种羟基聚合铝型体及其形成条件、测试方法、热力学稳定常数以及可能结构等,分析了各种因素如粘土矿物的种类、OH-/Al摩尔比、各种有机和无机配体离子以及实验条件等对羟基聚合铝形态变化的影响规律。引用文献50篇。
The research progress about the behavior, the influence factors and the mechanism of hydrolysis, polymerization, flocculation and precipitation of soluble aluminum in aquo-system and on the interface of water and mineral in last decade has been reviewed in this paper. The effect laws of its influential factors, such as the sorts of clay minerals, the OH-/Al mole ratios, the types and amount of different complexing anions and the experimental conditions employed have been discussed. All kinds of monomeric and polymeric aluminum species found in soil solutions and aquatic systems, theirs methods of measurement, thermodynamics stability constants and existing condition have been summarized, appraised and tabulated meanwhile. All types of the proposed structures of polymeric aluminum species and some main soil minerals reacting with H+ and their equilibrium constants(log10 values, 25℃) have been summarized.
出处
《分析科学学报》
CAS
CSCD
北大核心
2003年第4期383-388,共6页
Journal of Analytical Science
基金
国家自然科学基金(No.49831005&29777013)
徐州师范大学科研基金(01BX1008)
关键词
羟基聚合铝型体
形态转化
影响因素
测试方法
土壤溶液
天然水体
Hydroxyl polynuclear aluminum species
Transformation of polynuclear aluminum species
Influential factors
Monitoring techniques
Soil solution
Aquatic systems
