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Analysis of Soils to Demonstrate Sustained Organic Carbon Removal during Soil Aquifer Treatment

^a Arizona State University, Department of Civil and Environmental Engineering, Tempe, AZ 85287-5306
^b Department of Water and Environment, Institute of Earth, Water and Environment, The Hashemite University, Zarka, Jordan

View larger version (17K): [in a new window]   Fig. 1. Schematic of the soil aquifer treatment (SAT).

View larger version (22K): [in a new window]   Fig. 2. Total organic carbon (TOC) vs. time for Pilot Column 9 with Agua Fria sand fed chlorinated denitrified effluent.

View larger version (27K): [in a new window]   Fig. 3. Extractable organic matter for soil samples from the North Pond silt column (referred to as silt) and the Agua Fria sand column (referred to as sand).

View larger version (28K): [in a new window]   Fig. 4. Combustible organic matter for soil samples before and after soil aquifer treatment (SAT). Measurements were done after each sequential extraction step carbonates by acid extraction.

View larger version (27K): [in a new window]   Fig. 5. Extractable metal oxides and associated materials for soils before and after soil aquifer treatment (SAT).

View larger version (13K): [in a new window]   Fig. 6. Soil depth profile for infiltrating water at the Mesa Northwest Water Reclamation Plant Recharge Facility.

View larger version (30K): [in a new window]   Fig. 7. Total combustible organic matter from soils at the Mesa Northwest Water Reclamation Plant Recharge Facility.

View larger version (51K): [in a new window]   Fig. 8. Total iron extracted from soils at the Mesa Northwest Water Reclamation Plant Recharge Facility.

View larger version (44K): [in a new window]   Fig. 9. Total manganese extracted from soils at the Mesa Northwest Water Reclamation Plant Recharge Facility.