נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Effect of low electrolyte concentration on hydraulic conductivity of clay-sand-hydroxy polymers systems
Year:
1989
Authors :
Keren, Rami
;
.
Volume :
53
Co-Authors:
Keren, R., ARO, Israel
Singer, M.J., ARO, Israel
Facilitators :
From page:
349
To page:
355
(
Total pages:
7
)
Abstract:
The objectives of this study were to (i) determine the effect of Fe- or Al-polymers on saturated hydraulic conductivity (HC) of smectite-sand mixtures at different percentages of the clay cation exchange capacity (CEC) at different sodium adsorption ratios (SAR) and solution electrical conductance (EC), and (ii) determine the reason for the observed effect. The HC of clay leached with SAR 5 solution decreased with a reduction in solution concentration from 500 to 1 molcm-3, after which clay was leached from the system and HC increased. Little HC reduction occurred at SAR 10 in the presence of hydroxy-Al polymers. At SAR 20,HC of the clay-sand mixtures decreased greatly, but no clay was observed in the leachate. Hydroxy-Fe polymers produced similar effects, but to a lesser extent. Iron was not as effective as Al-polymers in preventing reduction of HC at SAR 10. Additional study results are discussed.
Note:
Related Files :
aluminium polymer
clay-sand-hydroxy polymers system
Soils
Show More
Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
20940
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:40
Scientific Publication
Effect of low electrolyte concentration on hydraulic conductivity of clay-sand-hydroxy polymers systems
53
Keren, R., ARO, Israel
Singer, M.J., ARO, Israel
Effect of low electrolyte concentration on hydraulic conductivity of clay-sand-hydroxy polymers systems
The objectives of this study were to (i) determine the effect of Fe- or Al-polymers on saturated hydraulic conductivity (HC) of smectite-sand mixtures at different percentages of the clay cation exchange capacity (CEC) at different sodium adsorption ratios (SAR) and solution electrical conductance (EC), and (ii) determine the reason for the observed effect. The HC of clay leached with SAR 5 solution decreased with a reduction in solution concentration from 500 to 1 molcm-3, after which clay was leached from the system and HC increased. Little HC reduction occurred at SAR 10 in the presence of hydroxy-Al polymers. At SAR 20,HC of the clay-sand mixtures decreased greatly, but no clay was observed in the leachate. Hydroxy-Fe polymers produced similar effects, but to a lesser extent. Iron was not as effective as Al-polymers in preventing reduction of HC at SAR 10. Additional study results are discussed.
Scientific Publication
You may also be interested in