Jiangsu Province Typical Geographical Mud And The Heavy Metal Content Analysis Of The Preliminary Study

By using Atomic Absorption Spectrophotometry and Atomic Fluorescence Spectrophotometry, the contents of heavy metals in sullages and the flocculated sullages were analyzed.The Samples were collected from the selected region of the six tipical areas in Jiangsu province for four seasons, including Ancinet Canel in Wuxi, Hengcaolugang in Wujiang, Meiliang Bay in Taihu, Hongze Lake in Hongze, Xiexinggang in Qidong, the port in Lianyungang. It indicated that the content of heavy metals in different layers decreased from the surface layer to the middle layer and the bottom. The content of heavy metals had not changed in flocculated sullages and the water samples after flocculation .The index of geoaccumulation (Igeo) was applied to evaluate the heavy metal pollution in the sediments of different layers. The results showed that the heavy metal pollution was most serious in Ancient Canal sample, then in Lianyungang, Meiliang Bay, Hongze Lake, Xiexinggang, Hengcao Road in sequence. According to the heavy metal content ,the quality of the flocculated samples and the water samples after flocculation was evaluated by National Standard. The results showed that the heavy metal pollution was most serious in Spring' s sullages , then was in Summer , Autumn, Winter in sequence;the water quality in Lianyungang, Xiexinggang was best in Summer, then Winter, Autumn and Spring in sequence, there was little difference of water quality in Ancient Canal, Hengcaolugang and Hongze Lake . In balance, the six areas have been polluted more or less by heavy metals, and in different layers and different seasons, the degrees of pollution by heavy metals was different。...