נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Fluoride sorption by montmorillonite and kaolinite
Year:
1988
Source of publication :
Soil Science
Authors :
אפיק, איזבל
;
.
בר-יוסף, בניהו
;
.
רוזנברג, רבקה
;
.
Volume :
145
Co-Authors:
Bar-Yosef, B., Institute of Soils and Water, ARO, Bet Dagan, 50-250, Israel
Afik, I., Institute of Soils and Water, ARO, Bet Dagan, 50-250, Israel
Rosenberg, R., Institute of Soils and Water, ARO, Bet Dagan, 50-250, Israel
Facilitators :
From page:
194
To page:
200
(
Total pages:
7
)
Abstract:
We studied fluoride sorption by montmorillonite and kaolinite dominated by either Ca2+ or K+ as a function of F solution concentration, pH, and solution-to-clay ratio. Within an F concentration rate of 0 to 180 μM and at pHs between 4 and 9, F concentration in the solution of the studied suspensions was governed by adsorption. Adsorption decreased with increasing pH values and was negligible at pH > 8.5. A competitive Langmuir model simulated satisfactorily F retention by the adsorbents under the studied experimental conditions. The maximum adsorption capacity parameter was greater for kaolinite than for montmorillonite and greater for Ca-dominated clays than for K-clays. The affinity of the F species to the surface was maximum in K-kaolinite and minimal in Camontmorillonite. © 1988 The Williams and Wilkins.
Note:
Related Files :
soil
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18851
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:24
Scientific Publication
Fluoride sorption by montmorillonite and kaolinite
145
Bar-Yosef, B., Institute of Soils and Water, ARO, Bet Dagan, 50-250, Israel
Afik, I., Institute of Soils and Water, ARO, Bet Dagan, 50-250, Israel
Rosenberg, R., Institute of Soils and Water, ARO, Bet Dagan, 50-250, Israel
Fluoride sorption by montmorillonite and kaolinite
We studied fluoride sorption by montmorillonite and kaolinite dominated by either Ca2+ or K+ as a function of F solution concentration, pH, and solution-to-clay ratio. Within an F concentration rate of 0 to 180 μM and at pHs between 4 and 9, F concentration in the solution of the studied suspensions was governed by adsorption. Adsorption decreased with increasing pH values and was negligible at pH > 8.5. A competitive Langmuir model simulated satisfactorily F retention by the adsorbents under the studied experimental conditions. The maximum adsorption capacity parameter was greater for kaolinite than for montmorillonite and greater for Ca-dominated clays than for K-clays. The affinity of the F species to the surface was maximum in K-kaolinite and minimal in Camontmorillonite. © 1988 The Williams and Wilkins.
Scientific Publication
You may also be interested in