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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Investigating geochemical aspects of managed aquifer recharge by column experiments with alternating desalinated water and groundwater
Year:
2017
Source of publication :
Science of the Total Environment
Authors :
קורצמן, דניאל
;
.
רונן-אלירז, גפן
;
.
רוסק, עמוס
;
.
Volume :
574
Co-Authors:
Ronen-Eliraz, G., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Russak, A., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Nitzan, I., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Guttman, J., Mekorot Water Co. Ltd., Tel Aviv, Israel
Kurtzman, D., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Facilitators :
From page:
1174
To page:
1181
(
Total pages:
8
)
Abstract:
Managed aquifer recharge (MAR) events are occasionally carried out with surplus desalinated seawater that has been post-treated with CaCO3 in infiltration ponds overlying the northern part of the Israeli Coastal Aquifer. This water's chemical characteristics differ from those of any other water recharged to the aquifer and of the natural groundwater. As the MAR events are short (hours to weeks), the sediment under the infiltration ponds will intermittently host desalinated and natural groundwater. As part of comprehensive research on the influence of those events, column experiments were designed to simulate the alternation of the two water types: post-treated desalinated seawater (PTDES) and natural groundwater (GW). Each experiment included three stages: (i) saturation with GW; (ii) inflow of PTDES; (iii) inflow of GW. Three runs were conducted, each with different sediments extracted from the field and representing a different layer below the infiltration pond: (i) sand (< 1% CaCO3), (ii) sand containing 7% CaCO3, and (iii) crushed calcareous sandstone (35% CaCO3). The results from all columns showed enrichment of K+ and Mg2 + (up to 0.4 meq/L for 20 pore volumes) when PTDES replaced GW, whereas an opposite trend of Ca2 + depletion (up to 0.5 meq/L) was observed only in the columns that contained a high percentage of CaCO3. When GW replaced PTDES, depletion of Mg2 + and K+ was noted. The results indicated that adsorption/desorption of cations are the main processes causing the observed enrichment/depletion. It was concluded that the high concentration of Ca2 + (relative to the total concentration of cations) and the low concentration of Mg2 + in the PTDES relative to natural GW are the factors controlling the main sediment–water interaction. The enrichment of PTDES with Mg2 + may be viewed as an additional post-treatment. © 2016 Elsevier B.V.
Note:
Related Files :
Adsorption/desorption
aquifers
groundwater
Managed aquifer recharges
Natural groundwater
water treatment
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.scitotenv.2016.09.075
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
30983
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:58
You may also be interested in
Scientific Publication
Investigating geochemical aspects of managed aquifer recharge by column experiments with alternating desalinated water and groundwater
574
Ronen-Eliraz, G., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Russak, A., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Nitzan, I., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Guttman, J., Mekorot Water Co. Ltd., Tel Aviv, Israel
Kurtzman, D., Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, HaMaccabim Road 68, P.O.B 15159, Rishon LeZion, Israel
Investigating geochemical aspects of managed aquifer recharge by column experiments with alternating desalinated water and groundwater
Managed aquifer recharge (MAR) events are occasionally carried out with surplus desalinated seawater that has been post-treated with CaCO3 in infiltration ponds overlying the northern part of the Israeli Coastal Aquifer. This water's chemical characteristics differ from those of any other water recharged to the aquifer and of the natural groundwater. As the MAR events are short (hours to weeks), the sediment under the infiltration ponds will intermittently host desalinated and natural groundwater. As part of comprehensive research on the influence of those events, column experiments were designed to simulate the alternation of the two water types: post-treated desalinated seawater (PTDES) and natural groundwater (GW). Each experiment included three stages: (i) saturation with GW; (ii) inflow of PTDES; (iii) inflow of GW. Three runs were conducted, each with different sediments extracted from the field and representing a different layer below the infiltration pond: (i) sand (< 1% CaCO3), (ii) sand containing 7% CaCO3, and (iii) crushed calcareous sandstone (35% CaCO3). The results from all columns showed enrichment of K+ and Mg2 + (up to 0.4 meq/L for 20 pore volumes) when PTDES replaced GW, whereas an opposite trend of Ca2 + depletion (up to 0.5 meq/L) was observed only in the columns that contained a high percentage of CaCO3. When GW replaced PTDES, depletion of Mg2 + and K+ was noted. The results indicated that adsorption/desorption of cations are the main processes causing the observed enrichment/depletion. It was concluded that the high concentration of Ca2 + (relative to the total concentration of cations) and the low concentration of Mg2 + in the PTDES relative to natural GW are the factors controlling the main sediment–water interaction. The enrichment of PTDES with Mg2 + may be viewed as an additional post-treatment. © 2016 Elsevier B.V.
Scientific Publication
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