1. The first large-scale sequestration project which began in 1996 is called saline aquifer . 2. Leakage of back into the atmosphere may be a problem in saline aquifer storage. 3. Saline aquifers have been used for storage of chemical waste in a few cases.4. Declining oil fields, saline aquifers , and unminable coal seams have been suggested as storage sites. 5. The main advantage of saline aquifers is their large potential storage volume and their common occurrence. 6. A saline aquifer still flows beneath the surface and replenishes the salt whenever the water table rises. 7. The major disadvantage of saline aquifers is that relatively little is known about them compared to oil fields. 8. The major disadvantage of saline aquifers is that relatively little is known about them, especially compared to oil fields. 9. Sequestration of in saline aquifers is being tested throughout the United States, with a larger test currently underway in Illinois. 10. The project has moved to a second stage and is investigating carbon dioxide trapping in a saline aquifer 1500 meters below the surface.
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