Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater

Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater

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 promoti...

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Main Authors: Hidenori Tsukidate, Seika Otake, Yugo Kato, Ko Yoshimura, Masafumi Kitatsuji, Etsuro Yoshimura, Michio Suzuki
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Materials
Subjects:
bacterial complex
biofilm
iron and steel slag
iron elution
Online Access:https://www.mdpi.com/1996-1944/14/6/1477
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spelling doaj-6c8e95d2ac7047ff956a33e8053236be2021-03-18T00:06:51ZengMDPI AGMaterials1996-19442021-03-01141477147710.3390/ma14061477Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the SeawaterHidenori Tsukidate0Seika Otake1Yugo Kato2Ko Yoshimura3Masafumi Kitatsuji4Etsuro Yoshimura5Michio Suzuki6Department of Applied Biological Chemistry, Graduate School of Agriculture, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, JapanDepartment of Applied Biological Chemistry, Graduate School of Agriculture, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, JapanDepartment of Applied Biological Chemistry, Graduate School of Agriculture, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, JapanAdvanced Technology Research Laboratories, Nippon Steel, 20-1 Shintomi, Futtsu, Chiba 2930011, JapanSchool of Food Industrial Sciences, Miyagi University, 2-2-1 Hatatate, Tauhaku, Sendai, Miyagi 982-0215, JapanDepartment of Applied Biological Chemistry, Graduate School of Agriculture, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, JapanDepartment of Applied Biological Chemistry, Graduate School of Agriculture, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, JapanIron 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. <i>Sulfitobacter</i> sp. (TO1A) and <i>Pseudomonas</i> 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 <i>Pseudoalteromonas</i> 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.https://www.mdpi.com/1996-1944/14/6/1477bacterial complexbiofilmiron and steel slagiron elution
collection DOAJ
language English
format Article
sources DOAJ
author Hidenori Tsukidate
Seika Otake
Yugo Kato
Ko Yoshimura
Masafumi Kitatsuji
Etsuro Yoshimura
Michio Suzuki
spellingShingle Hidenori Tsukidate
Seika Otake
Yugo Kato
Ko Yoshimura
Masafumi Kitatsuji
Etsuro Yoshimura
Michio Suzuki
Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater
Materials
bacterial complex
biofilm
iron and steel slag
iron elution
author_facet Hidenori Tsukidate
Seika Otake
Yugo Kato
Ko Yoshimura
Masafumi Kitatsuji
Etsuro Yoshimura
Michio Suzuki
author_sort Hidenori Tsukidate
title Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater
title_short Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater
title_full Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater
title_fullStr Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater
title_full_unstemmed Iron Elution from Iron and Steel Slag Using Bacterial Complex Identified from the Seawater
title_sort iron elution from iron and steel slag using bacterial complex identified from the seawater
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2021-03-01
description 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. <i>Sulfitobacter</i> sp. (TO1A) and <i>Pseudomonas</i> 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 <i>Pseudoalteromonas</i> 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.
topic bacterial complex
biofilm
iron and steel slag
iron elution
url https://www.mdpi.com/1996-1944/14/6/1477
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