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: 0.575 CiteScore™: 0.24

ISSN 打印: 0018-8166
ISSN 在线: 1943-5991

水生生物学期刊

DOI: 10.1615/HydrobJ.v44.i2.90
pages 89-103

Influence of Fulvic Acids on the Migration of Metals in the "Bottom Sediments − Water" System

ABSTRACT

Results of experimental studies on the influence of fulvic acids on the behavior of metals (Mn, Al, Cu, Zn, Pb, and Cr) in the "bottom sediments − water" system are presented. The addition of fulvic acids to the natural water, which was in contact with silted bottom sediments, resulted in the additional decrease in the concentration of dissolved oxygen, and also in the formation of anaerobic conditions in the system. As a consequence, the intensity of metals migration from bottom sediments increased. The concentration of metals in the water increased with increasing the content of fulvic acids. The peculiarities of the influence of fulvic acids on the process of desorption of some metals from bottom sediments are discussed. It has been found that the major portion of metals migrates from bottom sediments in the composition of complex compounds with dissolved organic matter, the molecular mass of which is not more than 2.0 kDa. This phenomenon is accounted for by a predominance of the above-mentioned complexes in the pore solutions of bottom sediments, and also by the process of complexation involving the fraction of the added fulvic acids of the same molecular mass.


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 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
Influence of pH on the Migration of Various Forms of Metals in the "Bottom Sediments - Water" System under Experimental Conditions
Hydrobiological Journal, Vol.45, 2009, issue 3
I. B. Zubenko, I. I. Ignatenko, P. N. Linnik, A. V. Zubko, L. A. Malinovskaya
Background Content of Heavy Metals in Bivalvia of the Ukrainian Section of the Desna River
Hydrobiological Journal, Vol.47, 2011, issue 5
D. V. Lukashov
Content and Forms of Lead Migration in Surface Waters
Hydrobiological Journal, Vol.53, 2017, issue 1
V. A. Zhezherya, P. N. Linnik