Abstract
Sugi bark sorbent (SBS), which is recycled waste, is comparable to commonly used petroleum products in performance and cost and has lower environmental loads. It has been commercially produced since 2001. For the purpose of reducing total environmental loads in the oil recovery, we investigated biodegradation disposal of SBS after use (after adsorbing oil), instead of incineration disposal. It was confirmed that the oil content was reduced from 14,300±1,600ppm to 1,500±500ppm after 164 days-period (36m3 site), and reduced from 8,600±900ppm to 1,400±400ppm after 170 days-period (100m3 site) in a biodegradation experiment using Bunker C in the bark compost (background : 430±140ppm).
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