Problem: The city of Covington wanted to nd a better way to deal with wood waste and sludge – one that would eliminate costly trips to the landlls. Approach: Aries Clean Energy developed the ACE DDSF-1000, a 12 ton per day capacity throughput downdraft gasication system that operates on the following specications: Input Materials: Wood is chipped, mixed with sludge, and pre- dried to control moisture content before gasication Process: Syngas produced (92% by volume input) is combusted in an industrial thermal oxidizer (an emissions control device). Thermal energy is transferred to heat oil uid, which drives a 235 Kw General Electric Organic Rankine Cylinder generator that osets the electrical usage at the wastewater treatment plant next door. Output: 8% of input results in biochar t

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