底泥泥质与污染物释放量的关系

Relationship between Sediment Quality and Pollutant Release Quantity

为研究底泥泥质与污染物(TP、TN、COD)释放量之间的关系,采用三峡大学校园文思湖水体底泥进行静水释放实验.结果表明,在本实验条件下,有机质对底泥CODMn的释放有非常大影响;TOC对释放TN有较大的影响;TOC对底泥释放TP影响不大.因此,可以通过调节底泥泥质来抑制湖泊底泥污染物的释放.实验结果可以为文思湖的污染治理提供科学依据.

The relationship between the sediment quality and the pollutant release quantity was studied by using the sediment of Wensi Lake in China Three Gorges University campus.On this condition,the experimental result shows that chemical oxygen demand（COD）release is greatly influenced by organic matter.And total organic carbon（TOC） affects total nitrogen（TN）release but has little impact on sediment total phosphorus（TP）releasing.Therefore,it is possible to restrain pollutant release by adjusting the sediment quality.The result provides a scientific basis for pollution control in Wensi Lake.