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Final Report - Ohio Department of Transportation

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List <strong>of</strong> Figures, Tables and Notation<br />

List <strong>of</strong> Figures<br />

Fig. 1 – Nutrient Poor Oxisol (left) and Terra Preta Oxisol (right) . . . . . . . . . . . . . . . . . 3<br />

Fig. 2 – Terra Preta Formations in Brazil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br />

Fig. 3 - Examples <strong>of</strong> “Production” Carbonization Reactors . . . . . . . . . . . . . . . . . . . . . . 6<br />

Fig. 4 – CWRU Bench and Pilot-Scale Carbonization Research Reactors . . . . . . . . . . . 7<br />

Fig. 5 – Example Yard Waste Fractions Before and After Carbonization . . . . . . . . . . . . 8<br />

Fig. 6 – Soybean Plants Growing in Biochar-Amended Soil at CWRU’s<br />

ValleeVue Farm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9<br />

Fig. 7 - Corn Growing in Biochar-Amended Soil at CWRU’s ValleeVue Farm . . . . . . 10<br />

Fig. 8 – Bitumen Generated During the Carbonization <strong>of</strong> Shredded Yard Waste . . . . . 11<br />

Fig. 9 – Yard Waste in “Lawn and Leaf” Bags Staged for Collection . . . . . . . . . . . . . 20<br />

Fig. 10 – Yard Waste Brush Pile (Oak Branches) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21<br />

Fig. 11 – Yard Waste Log Pile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21<br />

Fig. 12 – Rhododendron Leaves Prepared for Carbonization . . . . . . . . . . . . . . . . . . . . . 22<br />

Fig. 13 – Oak Branches Prepared for Carbonization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22<br />

Fig. 14 – Dried Willow Branches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23<br />

Fig. 15 – Black Locust Leaves After Drying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24<br />

Fig. 16 – Sealed Carbonization Reactor Attached to Off Gas Discharge Piping . . . . . . . 25<br />

Fig. 17 – Heated Off Gas Piping and Thermocouples to Regulate<br />

Discharge Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25<br />

Fig. 18 – Secondary Collection Flask with Water-Cooled Condenser. . . . . . . . . . . . . . . . 26<br />

Fig. 19 – Secondary Collection Flask Filled with Dense Off Gas During the<br />

Initial Stages <strong>of</strong> Carbonization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27<br />

Fig. 20 – Maple Branches Before Carbonization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28<br />

Fig. 21 – Maple Branches After Carbonization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28<br />

Fig. 22 – Maple Samaras Before Carbonization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29<br />

Fig. 23 – Maple Samaras After Carbonization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29<br />

Fig. 24 – Off Gas Products Collecting in Glass Fittings Above the<br />

First Collection Flask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30<br />

vi

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