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以大型饮用水源生态净化工程为研究对象,分析了该工程不同季节、不同HRT下人工介质对微污染原水的净化效果。结果表明,人工介质对COD_(Mn)、NH_3-N、TN、TP和SS的平均去除率分别为7.2%、38.2%、16.8%、24.4%和34.4%,且去除效果随HRT的增加而有所增强;人工介质对污染物的去除效果因季节而异,COD_(Mn)各季节平均去除率表现为夏季>春季>秋季>冬季,对NH_3-N和TN各季节平均去除率表现为夏季>秋季>春季>冬季,对TP和SS各季节平均去除率均表现为冬季>秋季>夏季>春季。
Taking the ecological purification project of large-scale drinking water source as the research object, the purification effect of the artificial medium on the micro-polluted raw water in different seasons and HRTs was analyzed. The results showed that the average removal rates of COD Mn, NH 3 -N, TN, TP and SS were 7.2%, 38.2%, 16.8%, 24.4% and 34.4%, respectively, and the removal efficiency increased with HRT The removal efficiency of pollutants by artificial medium varies with the season, and the average removal rate of COD Mn is seasonal> spring> autumn> winter, and the average removal rates of NH_3-N and TN are summer> Autumn> Spring> Winter, the average removal rates of TP and SS in each season showed as follows: winter> autumn> summer> spring.