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本文叙述了在环境保护中利用天然沸石的研究动态。综述由4部分构成。第一部分介绍能在工业领域内应用的阳离子交换流程以及这些流程赖以建立的原理。第二部分讨论城市和工业污水除 NH_4~+,报道了主要大型工厂的工作成果以及最重要和最新的实验数据。第三部分指出根据实验室应用天然沸石于水除重金属的可能性。第四部分说明化学和结构特征如何使沸石成为净化含放射性核素水的非常有效的材料。
This paper describes the research progress in using natural zeolite in environmental protection. Summary consists of 4 parts. The first part introduces the cation exchange processes that can be used in the industry and the principles behind these processes. The second part discusses the removal of NH_4 ~ + from municipal and industrial effluents, reports on the work of major large factories and the most important and up-to-date experimental data. The third part points out the possibility of removing heavy metals from water using natural zeolites in laboratory applications. Section 4 shows how chemical and structural features make zeolites a very effective material for purifying water containing radionuclides.