多层渗滤介质处理微污染水体的中试研究  

Pilot Study of the Treatment of Slightly Polluted Reservoir Water Using a Multilayer Infiltration System

作　　者：侯立柱[1] 周训[1] 许靖华[2] 叶文华[2] 王文玉[1] 杨生炯[1] 

机构地区：[1]中国地质大学水资源与环境学院,北京100083 [2]中国地质大学集成水路科技发展研究中心,北京100083

出　　处：《现代地质》2009年第1期125-129,共5页Geoscience

基　　金：国家高技术研究发展计划("863")项目(2007AA06Z351);2008年度高等学校博士学科点专项科研基金项目(200804911012);"十一五"国家科技支撑计划项目(2006BAJ08B04)

摘　　要：对传统的渗滤系统进行改进，采用多层渗滤介质系统，以期增大人工土层对颗粒有机物的接触氧化表面积，同时设置曝气装置保证好氧过程的氧气供应，可以大大提高污水地下处理系统的水力负荷。以北京典型的细砂、中砂、粗砂和砾石为填充材料，处理北京市海淀区上庄水库的污染水体，远优于类似的系统。现场试验结果表明，改进后的系统能创造良好的好氧／厌氧环境，对污染物去除效果良好，CODCr、TN、NH4^＋-N和TP去除率分别达到了48．57％-94．87％、18．49％～70．21％、20．51％～87．50％和56．92％-80．65％，出水达到了地表水Ⅲ-Ⅳ类水质标准。多层渗滤介质系统通过微生物的硝化、反硝化作用实现生物脱氮是去除氮的主要途径；土壤的吸附与沉淀作用是去除磷的主要途径。In this research, we used an improved multilayer infiltration system to treat the slightly polluted reservoir water of the Shangzhuang Reservoir in the Haidian District of Beijing. Multi-transitional layers were adopted to increase the interface contact between the suspended organic matter and oxygen. In addition, an aeration device was used to increase oxygen supply so that the water hydraulic application loading can be greatly increased. The removal efficiencies of CODCr, TN, NH4^＋-N, and TP were 48.57% to 94. 87%, 18.49% to 70. 21%, 20.51% to 87.50% and 56.92% to 80.65%, respectively. Furthermore, these effluent concentrations met the standard of class Ⅲ - Ⅳ for surface water. Biological nitrogen removal through nitrification and denitrification was the main removal mechanism of nitrogen. Phosphorus in waste water was mainly removed by fixation processed in the soil, such as adsorption and chemical precipitation.

关 键 词：多层渗滤介质 硝化 脱氮除磷 中试 

分 类 号：P641[天文地球—地质矿产勘探] X143[天文地球—地质学]