Abstract

ABSTRACT A rotary brush washer, a pressurized water spray washer and a rotary tumbler washer were designed, constructed, and their efficiency in washing oyster shellstock was determined. Washer effluent water quali-ty was determined for the brush and spray washer. The brush and spray washer did an acceptable job of washing oyster shellstock. The tumbler washer damaged oysters enough that it could not be used in any commercial operation. Water quality analysis of washer effluent showed that effluent must be disinfected prior to discharge, and in some instances, the pH must be lowered to meet existing Maryland and EPA limitations.

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