PROBLEM TO BE SOLVED: To provide a cadmium removal method for reducing cost without using a decomposition enzyme for protein such as protease, though requiring to be formed in a slurry shape for mixing-agitating by using a chelate resin when separating cadmium from these, for separating the cadmium from a processing residue of a cuttlefish and a scallop of including heavy metal.SOLUTION: A cadmium removal method removes cadmium from a scallop-cuttlefish processing residue by mixing-agitating with a chelate resin and an ion exchange resin after being formed in a slurry shape by self-digestion while simultaneously mixing and heating the scallop-cuttlefish residue of including cadmium. The cadmium removal method has an advantage of being capable of melting a mantle membrane and the gill of a scallop unmelted only by a scallop processing residue by agitating while crushing by adding a cuttlefish processing residue to the scallop processing residue.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】重金属を含むイカ、ホタテの加工残渣からカドミウムを分離するには、これらからカドミウムを分離する際キレート樹脂等を使用し混合撹拌するためスラリー状にする必要があるが、プロテアーゼ等のタンパク質を分解酵素を用いず、コストが安くなるカドミウム除去方法の提供。【解決手段】カドミウムを含むホタテ・イカ残渣を同時に混合し加温しながら自己消化にてスラリー状にした後、キレート樹脂やイオン交換樹脂と混合撹拌することにより、ホタテ・イカ加工残渣からカドミウムを除去するカドミウム除去方法。ホタテ加工残渣にイカ加工残渣を加え、粉砕しながら攪拌することにより、ホタテ加工残渣だけでは溶解しなかったホタテの外套膜や鰓等が溶解できる利点があるカドミウム除去方法。【選択図】図1
