几种矿物相在重金属类污染物自净化体系中的应用  

Practice and Design of the Self-purification System for Heavy Metals Bearing Contaminants

作　　者：钱光人[1] 徐霞[1] 孙福成[1] 

机构地区：[1]上海大学环境与化学工程学院,上海200072

出　　处：《西南科技大学学报》2007年第3期43-51,62,共10页Journal of Southwest University of Science and Technology

基　　金：国家自然科学基金项目(No.20677037No.20477024)

摘　　要：自然界中的许多矿物自身赋有容纳和稳定有害物质的自净化能力,可用于重金属类污染物的治理。水滑石类层状双氢氧化物LDH体系(layer double hydroxide)、托勃莫来石类水化硅酸钙(calcium silicate hydrate)和磷灰石(apatite)是自然界中普遍存在的3种矿物相,具有较高的地球化学稳定性和潜在的重金属自束缚稳定能力。在阐述3种矿物相晶体结构特点和自净化原理的基础上,对它们在危险废物污染物自净化体系中所起的作用进行了讨论。Many minerals in nature have the self-purification capacity to hold and stabilize deleterious contaminant, which can be used to deal with heavy metal contaminants. Hydrotalcite layer double hydroxide, tobermorite calcium silicate hydrate and apatite are ubiquitous minerals in nature, and they have higher geochemistry stability and potential fixing capacity for contaminants. This article discussed how to design the self-purification system of heavy metal-bearing contaminants by the knowledge of the crystal structure and self-purification principle of above three natural minerals.

关 键 词：自净化 LDH CSH APATITE 重金属污染 

分 类 号：X75[环境科学与工程—环境工程] TQ170.9[化学工程—硅酸盐工业]