利用从海水中鉴定出的细菌复合体从钢铁渣中洗脱铁
Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater.
作者信息
Tsukidate Hidenori, Otake Seika, Kato Yugo, Yoshimura Ko, Kitatsuji Masafumi, Yoshimura Etsuro, Suzuki Michio
机构信息
Department of Applied Biological Chemistry, Graduate School of Agriculture, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan.
Advanced Technology Research Laboratories, Nippon Steel, 20-1 Shintomi, Futtsu, Chiba 293-0011, Japan.
出版信息
Materials (Basel). 2021 Mar 17;14(6):1477. doi: 10.3390/ma14061477.
Iron and steel slag (ISS) is a byproduct of iron refining processes. The lack of iron in seawater can cause barren grounds where algae cannot grow. To improve the barren grounds of the sea, a supply of iron to the seawater is necessary. This study focused on bacteria interacting with ISS and promoting iron elution in seawater. sp. (TO1A) and sp. (TO1B) were isolated from Tokyo Bay and Sagami Bay. The co-culture of both bacteria promoted more iron elution than individual cultures. After the incubation of both bacteria with ISS, quartz and vaterite appeared on the surface of the ISS. To maintain continuous iron elution from the ISS in the seawater, we also isolated sp. (TO7) that formed a yellow biofilm on the ISS. Iron was eluted by TO1A and TO1B, and biofilm was synthesized by TO7 continuously in the seawater. The present research is expected to contribute to the improvement of ISS usage as a material for the construction of seaweed forests.
钢铁炉渣（ISS）是炼铁过程的副产品。海水中铁元素的缺乏会导致藻类无法生长的贫瘠海域。为了改善海洋中的贫瘠海域，有必要向海水中供应铁元素。本研究聚焦于与ISS相互作用并促进海水中铁元素溶出的细菌。sp.（TO1A）和sp.（TO1B）从东京湾和相模湾分离得到。两种细菌的共培养比单独培养促进了更多的铁元素溶出。两种细菌与ISS孵育后，ISS表面出现了石英和球霰石。为了维持海水中ISS持续的铁元素溶出，我们还分离出了sp.（TO7），它在ISS上形成了黄色生物膜。铁元素由TO1A和TO1B溶出，生物膜由TO7在海水中持续合成。本研究有望有助于提高ISS作为构建海藻林材料的利用率。
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