FOWA Model 1: Recycling of 100 pounds of waste asphalt.
Description of the basic unit:
FOWA Model 1 (Fuel Oil form Waste Asphalt Model 1) is designed for use by operators producing small volumes of waste. The reaction vessel is 24” diameter and height of 12” with a bottom drain. The drain pipe is connected to an Oil Water Separator through a ball valve. The ball valve controls the flow of oily water in the oil-water separator (OWS). The unit is manually operated though it can be made automatic if needed. The process is given below.
- Add 100 pounds of pulverized asphalt into the reaction vessel
- Spray 50 ml starter solvent (diesel) over the surface
- Immediately spray VaporRemed over the surface of the waste asphalt
- Free oil droplets are formed over the surface
- Add a spray of water from the top of the reaction vessel
- Once the top of the waste is covered shut off the water
- Oil begins to float on the water
- Open the ball valve to release the water to OWS
- Repeat multiple times till all the oil is collected
- The clean gravel is almost white for re-use
The process of recycling waste asphalt is environment friendly and it is now a source of revenue by sale of fuel and also clean aggregate.
FOWA Model 1
Waste asphalt as received from the customer
Pulverized asphalt
Water streaming into the kettle showing released oil