希硫酸浸出/電解プロセスによる水産系廃棄物(通称イカゴロ)からの重金属イオンの除去

概要

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In order to remove heavy metal ions contained in organic squid gut waste, a novel process has beendeveloped with both dilute suluric acid leaching and electrowinning methods. This process was consistedof three procedures, which are the elimination of greasy component in squid gut wastes, thedissolution of heavy metal ions and the electro-deposition of heavy metal ions. Heavy metal ions containedin organic squid gut wastes are zinc, cadmium and copper ions. Heavy metal ions are leachedeasily in the order of zinc > cadmium > copper in suluric acid solution and are deposited in the orderof copper .> cadmium > zinc by electrowinning method. Finally, cadmium and copper ions containedin organic squid gut wastes,could be perfectly removed in the following optimum conditions: the suluricacid concentration is 0.54 mol/l, the electrical voltage 4.5 V , electrical time 3 hours and the treatmenttemperature 60 ℃.
室蘭工業大学の論文
2003-11-30