Total amount analysis of Zn、 Cr、 Ni in sewage treatment plant sludge in yanan sewage plant and Jiaokou river
This research mainly focuses on the information from Yan''an Segewa Plant and Yan''an Jiaokou Segewa Plant, through atomic absorption spectrophotometry, to study the heavy metal quantity of Cr, Ni, and Zn in filthy mud. The result shows that there are big quantity differences between the different heavy metal in the same kind filthy mud. The heavy metal quantity sequence in Yan''an sewage treatment plant from high to low is Zn ＞ Ni ＞ Cr, and among them, the quantity of Zn is 72. 68 mg/kg, Ni is 33. 70 mg/kg,and Cr is unknown. The quantities of each element are all within the control range of farming filthy mud. The order of heavy metal quantity in JiaoKouhe, Luochuan County, from high to low, is Cr ＞ Zn ＞ Ni, and separately, the quantity of Cr is 2133. 36 mg/kg,Zn is 97. 42 mg/kg,and Ni is unknown. The quantity of each heavy metal is within the range of farming control except Cr which is seriously over proof. As is shown, the heavy metal has caused terrible damages to the health of human beings and the environment. In this thesis, based on the above illustration, some relevant measures and suggestions of curbing pollution would be proposed.
NETL
NSTL
万方数据
维普
