【摘要】 为掌握原位修复在污染河流底泥治理中的作用，以污染河流为试验对象，现场采用微生物菌剂、氧化剂及曝气等原位修复手段综合研究其处理效果。研究表明，处理后底泥由深黑色变成黑褐色最后转化成淡黄色，底泥状况得到有效改善。水体总磷（Total Phosphorus，TP）、氨氮（NH₃-N）和化学需氧量(Chemical Oxygen Demand，COD_Cr)浓度均呈下降趋势，在间隔投加的情况下，NH₃-N浓度维持在较低水平（小于5 mg/L），TP浓度维持在（1.5±0.1）mg/L，COD_Cr浓度维持在（70±10）mg/L，表明氧化剂及微生物联用可有效降低污染河流底泥与水体中的污染物。更多还原

【Abstract】 Master the role of in-situ remediation in the treatment of polluted river sediment,take polluted rivers as experimental objects,and comprehensively study the treatment effect of in-situ remediation methods such as microbial agents,oxidants,and aeration on site.Research has shown that after treatment,the sediment changes from dark black to black brown and finally to light yellow,effectively improving the condition of the sediment.The concentrations of Total Phosphorus（TP）,ammonia nitrogen （NH₃-N）,and Chemical Oxygen Demand (COD_Cr) in the water showed a decreasing trend.Under intermittent dosing,the NH₃-N concentration remained within a low range （less than 5 mg/L）,the TP concentration remained within the range of （1.5±0.1） mg/L,and the COD_Cr concentration remained within the range of （70±10） mg/L,indicating that the combination of oxidants and microorganisms can effectively reduce pollutants in river sediment and water.更多还原