蒲峪金礦水、土、植被重金屬污染規(guī)律研究.pdf

1、西安科技大學碩士學位論文蒲峪金礦水、土、植被重金屬污染規(guī)律研究姓名：王攀申請學位級別：碩士專業(yè)：環(huán)境工程指導教師：薛喜成2011Subject : A Study of Heavy Metal Pollution Laws of Water, Soil and Vegetation in Puyu Gold Mine Specialty : Environment Engineering Name : WANG Pan

2、 (Signature) Supervisor : XUE Xi-cheng (Signature) ABSTRACT Puyu Gold Mine is located in the area of Qingling, the border of Henan province ,Shaanxi and shanxi

3、 province. More than 30 auriferous tectonic belts have been found out in this area. When the continuous development of mineral resources brings considerable economic effectiveness, it also brings heavy metal pollution at

4、 the same time. The development area of Puyu Gold Mine was taken as the research scope in this paper. After collecting samples of mining slag, surface water, sediments, soil and plants in the research area, the total amo

5、unt of Pb,Zn,Cr,Cd,Cu in the samples were tested separately using flame atomic absorption spectrophotometer in laboratory. Meanwhile the contents of different types of these heavy metals in sediments, soil and mining sla

6、g samples were tested by Tessier continuous extraction. On the basis of system testing, the status of heavy metal pollution was evaluated by association value method, single factor index, Nemero index and so on. This pap

7、er made depth exploration of the release, remove and transformation rules, and focused on the environmental effect of the heavy metals in the mining area. The research results show that the surface water, sediments, soi

8、l and vegetation in mining area have been polluted by heavy metals yet. However the whole pollution of channel surface water and sediments were polluted more seriously than others. The contents test results of different

9、types of these heavy metals show that the biological effectiveness of Pb is the highest, followed by Cu and Zn. The related coefficient of Pb,Cu and Zn is larger than 0.8, acting significant association, which shows a hi

10、gher remove ability of Pb,Cu and Zn. The plant of wormwood has a good accumulation effect to Pb in the soil. While the elymus can accumulate Cu better, so it is can be considered to be Hyperaccumulators. The channel surf