星云湖径流区磷矿开采开发磷污染入湖量调查

Research on Amount of Phosphorus Entering into Xingyun Lake Caused by Phosphorite Exploitation and Processing in Xingyun Lake Watershed

调查了星云湖径流区内磷矿和磷化工企业的分布情况,并对入湖河流水质现状进行了监测,结果表明:磷矿开采开发的磷污染入湖负荷量为46.6 t/a,其中螺蛳铺河径流区占84%。因此,治理星云湖流域磷矿开采加工区域磷流失是关键,重点是螺蛳铺磷化工业区。

Phosphorus pollution in Xingyun lake has become more and more serious in recent ten years. The distribution of phosphorites and phosphorus chemical industries in Xingyun lake watershed was investigated, at the same time, the water quality of the important tributaries was carried out. The results illustrated that the amount of phos- phorus entering into Xingyun lake caused by phosphorite exploitation and processing was 46. 6 ton per year, of which 84% was from Luosipu river watershed. Therefore, reducing the loss of phosphorus in phosphorite exploitation and processing is a key to control the phosphorus pollution in Xingyun lake and Luosipu phosphorus chemical industrial district is the major control region.