Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer Recharge
The use of stormwater for managed aquifer recharge (MAR) has become one of the most important ways to deal with water shortages and the corresponding environmental geological problems, especially in the north of China. The Fe (III) clogging of porous media is a common and significant problem that in...
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doaj-8694867a112046839076496610de59582021-01-26T00:01:52ZengMDPI AGWater2073-44412021-01-011328428410.3390/w13030284Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer RechargeHexuan Zhang0Xueyan Ye1Xinqiang Du2Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, ChinaKey Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, ChinaKey Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, ChinaThe use of stormwater for managed aquifer recharge (MAR) has become one of the most important ways to deal with water shortages and the corresponding environmental geological problems, especially in the north of China. The Fe (III) clogging of porous media is a common and significant problem that influences the effect of the infiltration rate. This paper focuses on the migration characteristics and clogging mechanisms of iron hydroxides in sand columns. The results indicate that the permeability of porous media significantly decreased at the inlet of the fine sand column and inside the coarse sand column. We demonstrated that, when the Fe (III) concentration was higher, a smaller infiltration medium size was produced more rapidly, and there was more significant clogging. More than 80% of the injected Fe (III) remained in the sand column, and more than 50% was retained within 1 cm of the column inlet. The mass retention increased with the decrease in the size of the infiltration medium particles and with the increase in the injected Fe (III) concentration. The main material that caused Fe (III) clogging was iron hydroxide colloids, which were in the form of a granular or flocculent membrane coating the quartz sand. The mechanisms of clogging and retention were blocking filtration and deep bed filtration, adsorption, and deposition, which were strongly affected by the coagulation of Fe(III) colloidal particles.https://www.mdpi.com/2073-4441/13/3/284managed aquifer rechargeurban stormwaterclogging |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hexuan Zhang Xueyan Ye Xinqiang Du |
spellingShingle |
Hexuan Zhang Xueyan Ye Xinqiang Du Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer Recharge Water managed aquifer recharge urban stormwater clogging |
author_facet |
Hexuan Zhang Xueyan Ye Xinqiang Du |
author_sort |
Hexuan Zhang |
title |
Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer Recharge |
title_short |
Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer Recharge |
title_full |
Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer Recharge |
title_fullStr |
Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer Recharge |
title_full_unstemmed |
Laws and Mechanism of the Fe (III) Clogging of Porous Media in Managed Aquifer Recharge |
title_sort |
laws and mechanism of the fe (iii) clogging of porous media in managed aquifer recharge |
publisher |
MDPI AG |
series |
Water |
issn |
2073-4441 |
publishDate |
2021-01-01 |
description |
The use of stormwater for managed aquifer recharge (MAR) has become one of the most important ways to deal with water shortages and the corresponding environmental geological problems, especially in the north of China. The Fe (III) clogging of porous media is a common and significant problem that influences the effect of the infiltration rate. This paper focuses on the migration characteristics and clogging mechanisms of iron hydroxides in sand columns. The results indicate that the permeability of porous media significantly decreased at the inlet of the fine sand column and inside the coarse sand column. We demonstrated that, when the Fe (III) concentration was higher, a smaller infiltration medium size was produced more rapidly, and there was more significant clogging. More than 80% of the injected Fe (III) remained in the sand column, and more than 50% was retained within 1 cm of the column inlet. The mass retention increased with the decrease in the size of the infiltration medium particles and with the increase in the injected Fe (III) concentration. The main material that caused Fe (III) clogging was iron hydroxide colloids, which were in the form of a granular or flocculent membrane coating the quartz sand. The mechanisms of clogging and retention were blocking filtration and deep bed filtration, adsorption, and deposition, which were strongly affected by the coagulation of Fe(III) colloidal particles. |
topic |
managed aquifer recharge urban stormwater clogging |
url |
https://www.mdpi.com/2073-4441/13/3/284 |
work_keys_str_mv |
AT hexuanzhang lawsandmechanismofthefeiiicloggingofporousmediainmanagedaquiferrecharge AT xueyanye lawsandmechanismofthefeiiicloggingofporousmediainmanagedaquiferrecharge AT xinqiangdu lawsandmechanismofthefeiiicloggingofporousmediainmanagedaquiferrecharge |
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