沙漠沙丘污水处理系统:原理、方法和效果  

Water treatment via Desert Dune System: Principle, methodology and effects

作　　者：陈明[1] 刘晓端[1] 陈鸿汉[2] 曹晓娟[1] 

机构地区：[1]国家地质实验测试中心环境与能源地球化学研究室,北京100037 [2]中国地质大学水资源与环境学院,北京100083

出　　处：《地学前缘》2005年第U04期67-72,共6页Earth Science Frontiers

基　　金：国家重点基础发展规划项目(G1999045708);国家社会公益研究项目(2001 161)

摘　　要：“沙漠沙丘系统(DDS)”是以地球化学工程学原理为指导的特殊水处理系统，它利用沙漠沙作为滤料，通过“机械过滤”、“化学作用”和“生物作用”净化污染水，一方面可使沙丘变得湿润而不再移动，以固定移动沙漠；另一方面又能净化污染水，最终起到“以害克害、固沙治水、一举多得”的良好综合生态环境效应。DDS是绿色的水处理系统，所需的原料和生成物都属于自然界存在的物质，无二次污染的发生。在DDS设计中，要注意的主要因素应包括：滤料的种类、湿干时间比、微生物培养方式、滤料层厚度、进水水质、时间、温度和pH等。DDS可以把官厅水库水由V类和超V类处理成2～3类水，从而恢复官厅水库的饮用水功能。Desert Dune System (DDS) is a special kind of water treatment system guided by the theory of “Geochemical Engineering”. In DDS, the desert dune sand is used as filtering material. This sand can purify polluted water through “mechanical filtering”, “chemical filtering” and “bio-filtering”. In addition, the system makes the dune humid, stabilizes the shifting desert sand, and purifies the polluted water. Effectively, it has the function of achieving two complementary purposes to reach a favorable integrated environmental effect. DDS is a “green” or natural water treatment system, with both material and results being natural. No secondary pollution is produced. Some parameters must be considered in the design of DDS, including material, time ratios of flooding/drying, mode of microbe cultivation, thickness of filtering material, inlet water quality, time, temperature, and pH value. The results of a pilot experiment show that DDS is able to treat the polluted water in the Guanting Reservoir, north China from grade V to II or III, which means that DDS is useful in recovery of the function of potable water source of the Guanting Reservoir.

关 键 词：沙漠沙丘系统 水处理系统 地球化学工程学 官厅水库 

分 类 号：X131.2[环境科学与工程—环境科学] X171.4