Reactive Transfer of Pollutants Through the Unsaturated Soil Zone During an Artificial Aquifer Recharge Process
| Autor: | Katia Besnard, N. Rampnoux, Marie Pettenati, Mohamed Azaroual, Joël Casanova, Patrick Ollivier |
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| Rok vydání: | 2013 |
| Předmět: |
Artificial recharge of aquifers
0207 environmental engineering Earth and Planetary Sciences(all) Aquifer Portable water purification 02 engineering and technology 010501 environmental sciences 01 natural sciences Thermodynamic Vadose zone Depression-focused recharge 020701 environmental engineering 0105 earth and related environmental sciences Unsaturated zone Pollutant geography geography.geographical_feature_category Environmental engineering General Medicine Groundwater recharge Reactive transport modeling 6. Clean water Kinetics 13. Climate action Soil water Water quality Geology |
| Zdroj: | Procedia Earth and Planetary Science. 7:40-43 |
| ISSN: | 1878-5220 |
| DOI: | 10.1016/j.proeps.2013.03.169 |
| Popis: | Artificial groundwater recharge of aquifers by percolating water through the unsaturated zone (UZ) is a technique to enhance the water quality for drinking, irrigation, and industrial water supplies. The performance of the UZ to purify the infiltrated water is based on both the chemical and hydrodynamic properties of the porous medium. The chemical and microbially-mediated redox-reactions involving the degradation of organic substances are the key phenomena controlling the efficiency of such a process, and allow developing filtrating and reactive zones beneath an artificial recharge system. For several decades, the BRGM has been developing research and industrial projects to support the development of this technology and its implementation in various climates, soils, industrial contexts, and specific water uses. A part of the obtained results highlighting several physicochemical phenomena potentially favorable for the creation of pollutant-filtrating reactive redox zones will be presented. This study confirms the interest of the unsaturated zone for water purification processes. |
| Databáze: | OpenAIRE |
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