图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
水生生物学期刊
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN 打印: 0018-8166
ISSN 在线: 1943-5991

水生生物学期刊

DOI: 10.1615/HydrobJ.v45.i3.100
pages 92-100

Influence of pH on the Migration of Various Forms of Metals in the "Bottom Sediments - Water" System under Experimental Conditions

P. N. Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
A. V. Zubko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
I. B. Zubenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
I. I. Ignatenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
L. A. Malinovskaya
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine

ABSTRACT

Results of experimental simulation of the influence of pH on the migration of metals (Mn, Cr, Zn, Pb, and Mo) in the "bottom sediments - water" system are discussed in the paper. The values of pH of the natural water accounted for 8.3, 7.0, and 6.0. In the experimental systems with pH of the water of 7.0 and 6.0 after three days of exposure, the concentration of dissolved oxygen decreased to 0. As a consequence, manganese migrated from the bottom. Its concentration in the water was 3.0 mg/L. The influx of other studied metals was also observed. They income both in the form of free ions and in the form of organic complexes. At pH 8.3, they income mainly in the form of organic complexes (60−80%). A decrease in pH was accompanied by the increase in the intensity of metals migration mainly at the expense of free ions (70−75%). The lowest intensity of migration from bottom sediments into the water was typical to lead and molybdenum, which was conditioned by their low content in bottom sediments, and also by the peculiarities of their distribution among their different fractions.


Articles with similar content:

Content and Forms of Metals Migration in the Water of the Zaporozhye Reservoir
Hydrobiological Journal, Vol.46, 2010, issue 6
I. B. Zubenko, V. A. Zhezherya, P. N. Linnik, A. V. Zubko
Peculiarities of Metals Migration in the "Bottom Sediments −Water" System with Decreasing pH and Increasing the Concentration of Fulvic Acids
Hydrobiological Journal, Vol.47, 2011, issue 5
V. A. Zhezherya, P. N. Linnik
Structural and Functional Organization of Phytoplankton in the Thickets and in the Sections Free of Vegetation in the Lakes of Kiev
Hydrobiological Journal, Vol.51, 2015, issue 3
T. F. Shevchenko, P. D. Klochenko, G. V. Kharchenko
Peculiarities of the Distribution of Aluminum among Its Coexisting Forms in Surface Water Bodies of Various Types
Hydrobiological Journal, Vol.46, 2010, issue 2
V. A. Zhezherya, P. N. Linnik
Content of Metals Labile Fraction in Surface Waters as the Main Element in Assessing Their Potential Toxicity
Hydrobiological Journal, Vol.47, 2011, issue 2
P. N. Linnik