Danang Airport Remedia'on Process
Dioxin
Excavated soil and sediment
Step 1
Surrounding soils will be sampled and tested to ensure all contaminated material has been excavated.
Excavated soil and sediment
Step 2
70 meters
Excavated Soil and Sediment 90 -‐ 105 meters
Step 3
Insula0on Added.
Excavated Soil and Sediment
Step 4
Excavated soil and sediment are completely enclosed. Insulated Cap
Excavated Soil and Sediment
Step 5
Liquid and vapor/steam collec0on systems are installed. Insulated Cap
Clean Soil
Excavated Soil and Sediment
Step 6
Clean Soil
Liquid is captured and will be treated. Insulated Cap
Soil Dries Out Clean Soil
Clean Soil
To treatment Step 7
Hea'ng begins. Steam and hot vapors are captured and will be treated.
To treatment
Insulated Cap
Clean Soil
Soil Dries Out
Step 8
Clean Soil
Insulated Cap
Sustained Heat Clean Soil
Clean Soil
Step 9
Insulated Cap
Sustained heat Clean Soil
Clean Soil
Step 10
Sustained heat destroys the dioxin chemical structure. Insulated Cap
Sustained heat Clean Soil
Clean Soil
Step 11
Confirma0on sampling will ensure soils are clean.
Insulated Cap
Clean Soil Clean Soil
Clean Soil
Step 12
Water is added to begin cool down process. Steam and water are captured. Insulated Cap
Cool Down Clean Soil
Clean Soil
Step 13
Insulated Cap
Clean Soil
Cool Down Sustained
Step 14
Clean Soil
Treat now ed soil is safe f o r use at air port.
s s e c o r P e t e l p m co Insulated Cap
Clean Soil Clean Soil
Clean Soil
Step 15