Abstract
ABSTRACT
Quantities of Hazardous Waste materials in liquid, sludge or solid form can be disposed on or near the soil surface. A common disposal operations uses surface impoundments for aqueous waste. Proper design and operation procedures can result in significantly reduced emissions of hazardous volatile species to the surrounding air.
Surface impoundments usually consist of shallow earthen basins lined to prevent liquid leakage and leachate formation. Aqueous and non-aqueous waste are placed in these open top basins for treatment of selected waste or for storage. Volatiles escape to the air boundary layer but significant reduction in emissions rate is possible by the use of perimeter fences and network fences. Forty percent reduction was achieved with liquid-phase controlled volatiles using solid perimeter fences. Seventy eight percent reduction was achieved with solid fence networks. The above results were performed on a pilot scale apparatus using ethyl ether as the model chemical.
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