地下式人工快速渗滤系统的室内砂柱试验研究  

Experimental Study on Underground Constructed Rapid Infiltration System with Indoor Sand Column

作　　者：薛亮[1] 梁继运[1] 李娟[1] 薛强[1] 

机构地区：[1]中国地质大学水资源与环境学院,北京100083

出　　处：《污染防治技术》2005年第4期14-18,53,共6页Pollution Control Technology

基　　金：大学生挑战杯知识创新竞赛基金(北京市大学生挑战杯)

摘　　要：人工快速渗滤系统,其经济、高效、适于分散点源污水处理的特点,已在我国南方得到广泛的应用。为了解决应用于北方的"过冬问题",设想采用地下构建来维持系统的正常运行。采用室内砂柱试验的方法对地下式构建人工快滤系统进行模拟,测定了系统的COD、NH_4^+-N、TN、TP等水质指标,验证了系统的出水水质情况。针对试验中出现的复氧、堵塞问题,分别提出了对系统增加预曝气和多级并联反冲洗的改进意见。同时,从出水水质的角度给出了水力负荷周期的推荐值。由于该系统是一种新型的水处理技术,所以将之与曝气生物滤池进行了对比,指出了各自的优缺点,以增强对地下式CRI系统的认识。Constructed Rapid Infiltration system （CRI） is one kind of wastewater land treatment. This wastewater treatment technology which has been applied widely has the advantage of economization and effectiveness, and is available to point source wastewater treatment. This paper studies the methods of underground construction to maintain the normal performance of this system because of its so - called “ winter problem”. The indoor sand column is used to stimulate the function of CRI, which is reflected by several water quality indexes such as COD, NH4 ^＋ - N, TN and TP. Some advice about solving the problem of oxygen recover and clogging and the recommended hydraulic loading cycle are given. Because CRI is a late - model water treatment system, a comparison between CRI and BIOSTYRI is made and the advantage and disadvantage of both of the systems is pointed out so that more comprehensive understanding about CRI can be caught.

关 键 词：地下构建 人工快滤 复氧 堵塞 曝气生物滤池 

分 类 号：X703.1[环境科学与工程—环境工程]