供水管道中含铝管垢的形成机理及其结构组成  

Formational Mechanism and Structural Composition of Aluminum-Containing Scales in Water Supply Pipes

作　　者：张小妮[1] 王文东[2] 乔子霞[2] 周礼川[2] 王洪平 丁真真 

机构地区：[1]重庆大学城市科技学院,重庆402167 [2]西安建筑科技大学环境与市政工程学院,陕西西安710055 [3]西安市环境保护科学研究院,陕西西安710002

出　　处：《净水技术》2013年第4期1-4,共4页Water Purification Technology

基　　金：国家自然科学基金资助项目(No.50838005);陕西省自然科学基金资助项目(No.2009JQ7001)

摘　　要：该文探讨了供水管道中铝的来源及其在管道内壁蓄积沉淀形成含铝管垢的机理。重点介绍了无定形氢氧化铝、硅铝酸盐、镁铝酸盐和磷酸盐等典型含铝管垢在给水管网中的形成条件和结构特征;为了减少输配水过程中铝的蓄积释放,保障管网稳定运行和居民饮水健康,建议通过水质调节措施来控制管网中含铝管垢的生成量;最后指出了今后的研究方向。The source of aluminum in the water supply pipe and the mechanism of pipe scale forming after aluminum accumula- tion and sedimentation were discussed in this paper. The forming conditions and structural features of typical aluminum-containing scales in the pipeline like amorphous aluminum hydroxide, aluminosilicate, magnesium aluminate, phosphate and so on was intro- duced. In order to decrease the release of trace metal elements and ensure the stable operation of pipe network and residents＇ healthy water drinking, water quality adjustment were suggested to avoid aluminum-containing scales formation in drinking distribu- tion system. Future trends of development in this field were also proposed.

关 键 词：给水管道 含铝管垢 供水水质 结构特征 

分 类 号：TU991[建筑科学—市政工程]