Výsledky vyhledávání - "Hisanori Iwai"

Akademický článek

A sulfidation Process for Recovering Ni from an Acidic Spent Catalyst, and the Chemical Characterization of the Sulfide Precipitates. (English)

Autor: Hisanori Iwai, Shun Ishii, Keishi Oyama, Shigeshi Fuchida, Naoki Yokota, Yuko Takahashi, Chiharu Tokoro

Publikováno v: Journal of the Society of Powder Technology, Japan; 2023, Vol. 60 Issue 10, p600-606, 7p

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A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters

Autor: Seiya Nagao, Rodrigo Mundo, Hisanori Iwai

Publikováno v: RSC Advances. 11:28704-28710

The use of a glass fiber filter coated with polyethyleneimine (PcGF) for partitioning dissolved polycyclic aromatic hydrocarbons (PAHs) that are associated with humic substances (HSs) is reported. The PAHs pass through the PcGF, while HS-associated P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d60f969ac5c86db22e3c60fafc1e0ef
https://doi.org/10.1039/d1ra04953d

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Biodegradation and Structural Modification of Humic Acids in a Compost Induced by Fertilization with Steelmaking Slag under Coastal Seawater, as Detected by TMAH-py-GC/MS, EEM and HPSEC Analyses

Autor: Mitsuo Yamamoto, Dan Liu, Motoyuki Matsuo, Hisanori Iwai, Masami Fukushima

Publikováno v: Analytical Sciences. 37:977-984

The compost's humic acid (HA) content decreased when it was fertilized in coastal seawater with steelmaking slag, as confirmed. This study clarified the cause for this change by a detailed analysis of the structural changes in HAs based on the TMAH-p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c029932d34e6311da20261cb3c443d6
https://doi.org/10.2116/analsci.20p304

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Environmental processes and fate of PAHs at a shallow and enclosed bay: West Nanao Bay, Noto Peninsula, Japan

Autor: Rodrigo Mundo, Tetsuya Matsunaka, Hisanori Iwai, Shinya Ochiai, Seiya Nagao

Publikováno v: Marine pollution bulletin. 184

From August 2019 to August 2020, particulate and dissolved polycyclic aromatic hydrocarbons concentrations (PAHs) were analyzed in the water body of West Nanao Bay, Japan, to determinate their levels, environmental pathways, and ecological risks at t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::211d2c1c032514bf313fa11fbe0be138
https://pubmed.ncbi.nlm.nih.gov/36115196

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Geochemical Control of PAHs by Inflowing River Water to West Nanao Bay, Japan, and Its Influences on Ecological Risk: Small-Scale Changes Observed under Near-Background Conditions at an Enclosed Bay

Autor: Tetsuya Matsunaka, Rodrigo Mundo, Hisanori Iwai, Seiya Nagao, Shinya Ochiai

Publikováno v: International Journal of Environmental Research and Public Health
Volume 18
Issue 19
International Journal of Environmental Research and Public Health, Vol 18, Iss 10310, p 10310 (2021)

Polycyclic aromatic hydrocarbons (PAHs), even at low concentrations, have been shown to trigger changes in life cycles and provoke abnormal behaviors in numerous marine organisms. From May 2019 to September 2020, particulate and dissolved PAH concent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4a286693b1afccc2aed6ddc5d9ea27f

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Influence of Land Use on the Structural Feature of Sedimentary Humic Acids in Rivers in Northwest Hokkaido, Japan

Autor: Mitsuo Yamamoto, Hisanori Iwai

Publikováno v: Analytical Sciences. 35:665-670

Colloidal organic matter is an important factor in our understanding of the transport of trace metals by rivers to coastal areas and the characteristics of organic matter in the sediment, including the effect of humic substances on the transport of s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a876a44ea4f4e83b8d6dbe88f056d53
https://doi.org/10.2116/analsci.18p373

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Mechanism of the Elution of Iron from a Slag-Compost Fertilizer for Restoring Seaweed Beds in Coastal Areas-Characteristic Changes of Steelmaking Slag and Humic Acids Derived from the Fertilizer during the Elution Process

Autor: Motoyuki Matsuo, Masami Fukushima, Mitsuo Yamamoto, Hisanori Iwai, Dan Liu

Publikováno v: Analytical sciences : the international journal of the Japan Society for Analytical Chemistry. 36(5)

The characteristic changes in steelmaking slag and humic acids (HAs) derived from a slag-compost fertilizer and their relation to the elution of Fe were evaluated in tank tests in Mashike, Hokkaido and Tsushima, Nagasaki. Analyses of iron, nitrogen a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d0005b1fb992db2f96ad67140725935
https://pubmed.ncbi.nlm.nih.gov/32389933

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Roles of Microbial Activity and Anthraquinone-2,7-disulfonate as a Model of Humic Substances in Leaching of Iron from Hematite into Seawater

Autor: Atsushi Tanaka, Hisanori Iwai, Xuefei Tu, Kazunori Nakashima, Mitsuo Yamamoto, Masami Fukushima, Apichaya Aneksampant

Publikováno v: Analytical sciences. 34(11):1303-1308

Fertilization with a mixture of steelmaking slag and compost can affect the supply of dissolved iron used to restore seaweed beds, however, the mechanisms of iron elution from the fertilizer are not well understood. In the present study, the microorg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb1713ad5b18fec92addb2f71abacb45
http://hdl.handle.net/2115/72335

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