Coagulation operation - Coagulation operation

Japanese: 凝集操作 - ぎょうぎしゅうそうさ
Coagulation operation - Coagulation operation

...Iron ions (II) are removed by coagulation (contact) filtration as insoluble iron (III) through air oxidation, or by oxidizing and adsorbing it with iron bacteria and then filtering it off. If it exists as organic colloidal iron, a coagulation operation using a coagulant is required. Manganese ions are removed by oxidizing and making them insoluble using an oxidizing agent such as chlorine or potassium permanganate in the presence of a manganese oxide catalyst.

*Some of the terminology used to refer to "coagulation operation" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…鉄イオン(II価)は空気酸化により不溶性の鉄(III価)として凝集(接触)ろ過で除去するか,鉄細菌に酸化吸合させてからろ別する。有機コロイド鉄として存在する場合は凝集剤による凝集操作を必要とする。マンガンイオンはマンガン酸化物触媒の存在下で塩素や過マンガン酸カリウムなどの酸化剤を用いて酸化不溶化して除去する。…

※「凝集操作」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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