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Title: Removal of humic substances from water by brown coal sorbents

Abstract

Brown coal sorption materials with high activity toward humic substances were prepared using a larger scale laboratory unit with a spouted-bed system. The effect of thermal treatment conditions on the sorption properties of these materials was studied. It was found that the sorption activity of the resulting samples toward humates was closely related to the limiting sorption volume of the materials with respect to benzene.

Authors:
; ;  [1]
  1. Russian Academy of Sciences, Krasnoyarsk (Russian Federation). Institute of Chemistry and Chemical Technology, Siberian Branch
Publication Date:
OSTI Identifier:
21037026
Resource Type:
Journal Article
Resource Relation:
Journal Name: Solid Fuel Chemistry (English Translation); Journal Volume: 41; Journal Issue: 6
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; BROWN COAL; ADSORBENTS; USES; WATER; SORPTION; WATER TREATMENT; SORPTIVE PROPERTIES; BENZENE

Citation Formats

E.V. Veprikova, A.V. Rudkovskii, and M.L. Shchipko. Removal of humic substances from water by brown coal sorbents. United States: N. p., 2007. Web. doi:10.3103/S0361521907060079.
E.V. Veprikova, A.V. Rudkovskii, & M.L. Shchipko. Removal of humic substances from water by brown coal sorbents. United States. doi:10.3103/S0361521907060079.
E.V. Veprikova, A.V. Rudkovskii, and M.L. Shchipko. 2007. "Removal of humic substances from water by brown coal sorbents". United States. doi:10.3103/S0361521907060079.
@article{osti_21037026,
title = {Removal of humic substances from water by brown coal sorbents},
author = {E.V. Veprikova and A.V. Rudkovskii and M.L. Shchipko},
abstractNote = {Brown coal sorption materials with high activity toward humic substances were prepared using a larger scale laboratory unit with a spouted-bed system. The effect of thermal treatment conditions on the sorption properties of these materials was studied. It was found that the sorption activity of the resulting samples toward humates was closely related to the limiting sorption volume of the materials with respect to benzene.},
doi = {10.3103/S0361521907060079},
journal = {Solid Fuel Chemistry (English Translation)},
number = 6,
volume = 41,
place = {United States},
year = 2007,
month =
}
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  • The responses to pH of abiotic interactions between dissolved humic substances, iron and phosphate were investigated by examining redistributions of [sup 55]FeCl[sub 3] and [sup 32]PO[sub 4][sup 3[minus]] added to epilimnetic lakewater from Lake Skjervatjern. The simultaneous movement of [sup 55]Fe and [sup 32]P to fractions of 10,000-20,000 and > 100,000 Daltons nominal molecular weight, as indicated by Sephadex gel filtration, diminished in response to decreasing pH. Variations in transformations to larger molecular size fractions with incubation time revealed by gel filtration were erratic, but indicated that transformations of added [sup 55]Fe and [sup 32]P are complete after circa 24more » h. Movement of [sup 32]P to particle size fractions (> 0.2 [mu]m) was not dependent on pH, whilst transformations of [sup 55]Fe to material of particle size increased as pH was lowered. Precipitation of added [sup 55]Fe and [sup 32]P was minimal at all pH values tested. Responses of precipitation losses to pH were not coincident for both radionuclides. 22 refs., 5 figs., 2 tabs.« less
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