Abstract:The oyster shells produced at shucking sites contain various organic and inorganic impurities and are discharged without proper pretreatment. In the present study, we confirmed a process for removing organic/inorganic impurities and salts from abandoned shells using a wet type of trommel. A particle size analysis showed that the inorganic impurities in the studied shells were Si, Fe, Al, etc. derived from sediment, and their contents were relatively rich in fine particles. Dissolved ions (Cl−, SO42−, and NO3−)… Show more
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