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활성탄을 이용한 톳(Sargassum fusiforme) 자숙농축액 내 무기비소 저감기술

Removal of Inorganic Arsenic from Steamed Hijiki Sargassum fusiforme Concentrate Using Activated Carbon

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주제분류수산학

초록

The edible sargasso seaweed hijiki Sargassum fusiforme is known to have high concentration of arsenic, which isa threat to human health, particularly due to inorganic arsenic. In this study, various methods were used to removeinorganic arsenic from steamed hijiki concentrate. The highest concentration of arsenate [As(V)] in both raw andprocessed hijiki during steamed hijiki manufacturing process was within the range of 8.213-14.356 mg/kg, and it isa potential source of inorganic arsenic, which can result in re-contamination and cause environmental pollution. Theremoval efficiencies of the various removal methods were within the range of 57.3-83.4%, and 19.0% reduction wasachieved using activated carbon and alginate bead. Further, activated carbon showed the best adsorption effect ofinorganic arsenic. Therefore, we suggest that activated carbon is a suitable efficient method for removing inorganicarsenic and has low operational costs in field applicability.

Abstract

The edible sargasso seaweed hijiki Sargassum fusiforme is known to have high concentration of arsenic, which isa threat to human health, particularly due to inorganic arsenic. In this study, various methods were used to removeinorganic arsenic from steamed hijiki concentrate. The highest concentration of arsenate [As(V)] in both raw andprocessed hijiki during steamed hijiki manufacturing process was within the range of 8.213-14.356 mg/kg, and it isa potential source of inorganic arsenic, which can result in re-contamination and cause environmental pollution. Theremoval efficiencies of the various removal methods were within the range of 57.3-83.4%, and 19.0% reduction wasachieved using activated carbon and alginate bead. Further, activated carbon showed the best adsorption effect ofinorganic arsenic. Therefore, we suggest that activated carbon is a suitable efficient method for removing inorganicarsenic and has low operational costs in field applicability.

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