基于强化河道底质生态活性技术的COD去除效果实验研究

Experimental Research on COD Removal Effect Based on the Technology of Strengthening River Basin Ecological Activity

摘要: 提出一种基于强化河道底质的生态活性技术用于河流水质净化处理。以烧结粘土矿物为生态填料，通过3组室内对比模拟实验验证了该技术对于化学需氧量(COD)的净化效果。经过第一阶段33天的监测分析，COD的平均去除率达到了85%以上，证明净化效果良好；经过第二阶段27天的监测，COD的去除率达到82%以上，证明该技术具有持续有效性；通过对比研究可知，粒径25~31.5 cm的填充材料净化效果最好，均达到92%以上。研究结果表明：强化河道底质的生态活性技术对水体有机污染物去除效果显著，具有取用方便、费用低、工艺简单等优点。

Abstract: An ecologically active technology based on strengthening river sediments was proposed to improve the water quality of rivers. Three indoor comparative simulation experiments were done to verify this technology’s purification effect (COD) that used economical and affordable sintered clay minerals as raw materials. The results showed that after 33 days of monitoring and analysis in the first stage, the average removal rate of COD reached more than 85%, which had significant purification effect; and after 27 days of monitoring in the second stage, the continuous effectiveness of the technology was tested, and the removal rate of COD also reached 82%. Through the comparison of the two groups of experiments, it was found that the filling material with a particle size of 25 - 31.5 cm had the best purification effect, and average removal rate of COD could reach more than 92%. The research results showed that the ecologically active technology had a significant effect on the removal of organic pollutants in river water bodies.