Transport of the colloid matter of riverine runoff through estuaries

A procedure for separating the colloid component of natural waters is proposed. It was shown that this component is the main form of matter transfer in Ob River runoff, because the mass of colloid substance is two orders of magnitude higher than that of particulate matter in the outer part of the es...

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Published in:Oceanology (Washington. 1965) 2017-07, Vol.57 (4), p.520-529
Main Authors: Lasareva, E. V., Parfenova, A. M., Demina, T. S., Romanova, N. D., Belyaev, N. A., Romankevich, E. A.
Format: Article
Language:English
Subjects:
Biota
Brackishwater environment
Clay
Colloids
Earth and Environmental Science
Earth Sciences
Estuaries
Estuarine dynamics
Estuarine environments
Field tests
Flocculants
Flocculation
Humic acids
Hydrophobicity
Marine Chemistry
Natural waters
Oceanography
Organic matter
Particulate matter
River discharge
River flow
Rivers
Runoff
Sedimentation
Simulation
Suspended particulate matter
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container_end_page 529
container_issue 4
container_start_page 520
container_title Oceanology (Washington. 1965)
container_volume 57
creator Lasareva, E. V.
Parfenova, A. M.
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Romankevich, E. A.
description A procedure for separating the colloid component of natural waters is proposed. It was shown that this component is the main form of matter transfer in Ob River runoff, because the mass of colloid substance is two orders of magnitude higher than that of particulate matter in the outer part of the estuary. Simulation and field experiments revealed the influence of nature and concentration of organic matter on their ability to stabilize or flocculate clay particles with an increase in salinity, thus affecting the range of transfer of riverine runoff matter. It was shown that the interaction of humic acids and clay particles, as well as the increase in hydrophobic properties of a flocculant, improve flocculation efficiency. Criteria are proposed to recognize in the estuarine region areas of pronounced contribution of flocculation processes to sedimentation of fine particles. It is shown that the newly formed organic matter produced by biota under saline stress might be flocculants of fine particulate matter.
doi_str_mv 10.1134/S0001437017040130
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ispartof Oceanology (Washington. 1965), 2017-07, Vol.57 (4), p.520-529
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1531-8508
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subjects Biota
Brackishwater environment
Clay
Colloids
Earth and Environmental Science
Earth Sciences
Estuaries
Estuarine dynamics
Estuarine environments
Field tests
Flocculants
Flocculation
Humic acids
Hydrophobicity
Marine Chemistry
Natural waters
Oceanography
Organic matter
Particulate matter
River discharge
River flow
Rivers
Runoff
Sedimentation
Simulation
Suspended particulate matter
title Transport of the colloid matter of riverine runoff through estuaries
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