稀土学报(英文版)
稀土學報(英文版)
희토학보(영문판)
JOURNAL OF RARE EARTHS
2003年
6期
686-690
,共5页
王立军%梁涛%丁力强%张朝生%李国胜%闫欣%王秀丽
王立軍%樑濤%丁力彊%張朝生%李國勝%閆訢%王秀麗
왕립군%량도%정력강%장조생%리국성%염흔%왕수려
pedology%sewage%geochemistry%Tianjin%rare earths
The geochemical features of rare earth elements (REEs) in the North and South sewage discharge channels of Tianjin were studied. The results show that concentrations of dissolved REEs in water of the sewage discharge channels are very low, while concentrations of Eu and heavy REEs are higher than those in natural rivers. Concentrations of REEs in unfiltered water are high and they mainly resided on suspended matter. Distribution patterns of the dissolved and susp ended light REEs vary reversely with the atomic number. Concentrations of REEs in the sediments and suspended matter are lower than those in natural rivers, and concentrations of REEs in the suspended matter are much lower than those in the sediments. Distribution patterns of REEs in sediments and suspended matter were similar with light REE enrichment and positive Eu-anomaly. This distributi on pattern is different from those of natural rivers. The differences may cause by the large amount of organic pollutants in sewage.
