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Nakai, Hisaaki*; Temma, Tsuyoshi*; Tamada, Masao; Sawamura, Toshihiro*; Saito, Takayuki*; Homma, Tetsuo*; Sato, Yasushi*
JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 47, 2007/02
Removal technology for cadmium ion (Cd
) from the mid-gut gland in the scallop processing was developed by combining the Cd leaching process with malic acid solution and Cd adsorption with iminodiacetic acid adsorbent synthesized with radiation-induced graft polymerization. Experimental equipment was assembled for removal of the Cd from 20-40 kg of mid-gut gland. The Cd in the mid-gut gland was reduced from 25 mg/kg to 1 mg/kg after 24 h treatment.
Nakai, Hisaaki*; Seko, Noriaki; Tamada, Masao; Temma, Tsuyoshi*; Oguma, Masaomi*
Nihon Ion Kokan Gakkai-Shi, 15(1), p.10 - 15, 2004/01
Removal of cadmium from the boiled mid-gut gland of the scallop was investigated to utilize the waste of scallop processing for the fertilizer and the livestock feed. Twelve kinds of acid solutions (0.1M) were evaluated on the point of the cadmium elution, toxicity, and price. The selected malic acid could wash out cadmium less than 0.5ppm in the boiled mid-gut gland by optimizing the acid concentration and the repitaion of rinse. It was confirmed that the concentration of the eluted cadmium was reduced to 0.1ppm and less than by the iminodiacetic acid adsorbent synthesized with radiation-induced graftpolymerization.
Nakai, Hisaaki*; Temma, Tsuyoshi*; Tamada, Masao; Sawamura, Toshihiro*; Saito, Takayuki*; Homma, Tetsuo*; Sato, Yasushi*
no journal, ,
Waste mid-gut glands of scallop processing was incinerate as industrial wastes since they contained toxic cadmium. However, mid-gut glands is valuable sources for proteins, a fatty substance, docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA). Apparatus of cadmium removal from 20 kg mid-gut glands were assembled by combining the elution of cadmium with malic acid and the adsorption of cadmium with graft adsorbent. After the treatment of 15kg waste mid-gut glands for 24hours by the apparatus, the initial cadmium concentration of 25mg/kg was reduced to 1.0mg/kg.
Nakai, Hisaaki*; Temma, Tsuyoshi*; Tamada, Masao; Sawamura, Toshihiro*; Saito, Takayuki*; Homma, Tetsuo*; Sato, Yasushi*
no journal, ,
Waste mid-gut glands of scallop processing was incinerate as industrial wastes since they contained toxic cadmium. However, mid-gut glands is valuable sources for proteins, a fatty substance, docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA). Apparatus of cadmium removal from 20 kg mid-gut glands were assembled by combining the elution of cadmium with malic acid and the adsorption of cadmium with graft adsorbent. After the treatment of 15 kg waste mid-gut glands for 24 hours by the apparatus, the initial cadmium concentration of 25 mg/kg was reduced to 1.0 mg/kg.
Nakai, Hisaaki*; Temma, Tsuyoshi*; Tamada, Masao; Sawamura, Toshihiro*; Saito, Takayuki*; Homma, Tetsuo*; Sato, Yasushi*
no journal, ,
Removal technology for cadmium ion (Cd) from the mid-gut gland in the scallop processing was developed by combining the Cd leaching process with malic acid solution and Cdadsorption with graft adsorbent. Experimental equipment was assembled for removal of the Cd from 30 kg of mid-gut gland. The concentration of Cd in the mid-gut gland was reduced from 25 mg/kg to 1mg/kg after 24h treatment. The treated mid-gut gland can be used for fertilizer, animal food, food additives, and supplement.
