Japan Society of Civil Engineers 2025 Annual Meeting
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Presentation Information

1:30 PM - 1:40 PM JST(4:30 AM - 4:40 AM UTC)

[III-56]Demonstration test of quantitative addition of hexavalent chromium reducing purifiers using the S+4 method and method for confirming the amount of hexavalent chromium added.

*Taiga Shiota1, Yasunori Arai1, Takuya Miura2, Naoki Hatsuno3, Syouko Hatsuno3, Yuuzi Inamoto4, Shinsuke Ujiie5 (1. Seibu construction Co.,Ltd., 2. National lnstitute of Technology(Kosen),Fukushima College, 3. Hatsuno Construction Material Industry Co., Ltd., 4. Leaf air Co.,Ltd., 5. Hojun Co.,Ltd.)

Keywords:

hexavalent chromium,trivalent chromium,S plus four method of construction,actinomycetes ST13 strain,hexavalent chromium reduction and purification agent

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