Fundamental studies on oxidizing roasting of the "bioselenium"

Osamu Otsuka, Yutaka Yanaba, Takeshi Yoshikawa, Mitsuo Yamashita

研究成果: Article

抄録

A method has been developed for the recovery and recycling of selenium (Se) from Se-containing wastewater using the Se reducing bacterium, Pseudomonas stutzeri NT-I. The treatment of Se-containing wastewater with strain NT-I produced the bioselenium, which was composed mainly of organic matter and 11-14 mass% of Se. Specifically, the recovery of Se from the bioselenium by oxidizing roasting followed by wet reduction was studied. After thermodynamic calculations were performed to estimate the oxidizing behavior during roasting, experiments were conducted on the bioselenium for various roasting conditions. Selenium in the bioselenium was recovered in the form of solid SeO2 with a purity of 99% (metal basis) and a maximum yield of 97 mass% after roasting at 700 °C. Wet reduction of SeO2 to metallic Se was achieved with a purity of 99% (metal basis).

元の言語English
ページ(範囲)1183-1191
ページ数9
ジャーナルMaterials Transactions
57
発行部数7
DOI
出版物ステータスPublished - 2016

Fingerprint

Selenium
selenium
roasting
purity
Wastewater
Metals
recovery
Recovery
pseudomonas
selenium disulfide
recycling
metals
Biological materials
bacteria
Recycling
Bacteria
Thermodynamics
thermodynamics
estimates

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

これを引用

Fundamental studies on oxidizing roasting of the "bioselenium". / Otsuka, Osamu; Yanaba, Yutaka; Yoshikawa, Takeshi; Yamashita, Mitsuo.

:: Materials Transactions, 巻 57, 番号 7, 2016, p. 1183-1191.

研究成果: Article

Otsuka, Osamu ; Yanaba, Yutaka ; Yoshikawa, Takeshi ; Yamashita, Mitsuo. / Fundamental studies on oxidizing roasting of the "bioselenium". :: Materials Transactions. 2016 ; 巻 57, 番号 7. pp. 1183-1191.
@article{105d64892a9c4b0481eb05e5cdf71a7d,
title = "Fundamental studies on oxidizing roasting of the {"}bioselenium{"}",
abstract = "A method has been developed for the recovery and recycling of selenium (Se) from Se-containing wastewater using the Se reducing bacterium, Pseudomonas stutzeri NT-I. The treatment of Se-containing wastewater with strain NT-I produced the bioselenium, which was composed mainly of organic matter and 11-14 mass{\%} of Se. Specifically, the recovery of Se from the bioselenium by oxidizing roasting followed by wet reduction was studied. After thermodynamic calculations were performed to estimate the oxidizing behavior during roasting, experiments were conducted on the bioselenium for various roasting conditions. Selenium in the bioselenium was recovered in the form of solid SeO2 with a purity of 99{\%} (metal basis) and a maximum yield of 97 mass{\%} after roasting at 700 °C. Wet reduction of SeO2 to metallic Se was achieved with a purity of 99{\%} (metal basis).",
keywords = "Bioselenium, Metallic selenium, Oxidizing roasting, Pseudomonas stutzeri NT-I, Purification, Selenium dioxide, Selenium reducing bacterium, Thermodynamics",
author = "Osamu Otsuka and Yutaka Yanaba and Takeshi Yoshikawa and Mitsuo Yamashita",
year = "2016",
doi = "10.2320/matertrans.M2016060",
language = "English",
volume = "57",
pages = "1183--1191",
journal = "Materials Transactions",
issn = "1345-9678",
publisher = "Japan Institute of Metals (JIM)",
number = "7",

}

TY - JOUR

T1 - Fundamental studies on oxidizing roasting of the "bioselenium"

AU - Otsuka, Osamu

AU - Yanaba, Yutaka

AU - Yoshikawa, Takeshi

AU - Yamashita, Mitsuo

PY - 2016

Y1 - 2016

N2 - A method has been developed for the recovery and recycling of selenium (Se) from Se-containing wastewater using the Se reducing bacterium, Pseudomonas stutzeri NT-I. The treatment of Se-containing wastewater with strain NT-I produced the bioselenium, which was composed mainly of organic matter and 11-14 mass% of Se. Specifically, the recovery of Se from the bioselenium by oxidizing roasting followed by wet reduction was studied. After thermodynamic calculations were performed to estimate the oxidizing behavior during roasting, experiments were conducted on the bioselenium for various roasting conditions. Selenium in the bioselenium was recovered in the form of solid SeO2 with a purity of 99% (metal basis) and a maximum yield of 97 mass% after roasting at 700 °C. Wet reduction of SeO2 to metallic Se was achieved with a purity of 99% (metal basis).

AB - A method has been developed for the recovery and recycling of selenium (Se) from Se-containing wastewater using the Se reducing bacterium, Pseudomonas stutzeri NT-I. The treatment of Se-containing wastewater with strain NT-I produced the bioselenium, which was composed mainly of organic matter and 11-14 mass% of Se. Specifically, the recovery of Se from the bioselenium by oxidizing roasting followed by wet reduction was studied. After thermodynamic calculations were performed to estimate the oxidizing behavior during roasting, experiments were conducted on the bioselenium for various roasting conditions. Selenium in the bioselenium was recovered in the form of solid SeO2 with a purity of 99% (metal basis) and a maximum yield of 97 mass% after roasting at 700 °C. Wet reduction of SeO2 to metallic Se was achieved with a purity of 99% (metal basis).

KW - Bioselenium

KW - Metallic selenium

KW - Oxidizing roasting

KW - Pseudomonas stutzeri NT-I

KW - Purification

KW - Selenium dioxide

KW - Selenium reducing bacterium

KW - Thermodynamics

UR - http://www.scopus.com/inward/record.url?scp=84978427327&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84978427327&partnerID=8YFLogxK

U2 - 10.2320/matertrans.M2016060

DO - 10.2320/matertrans.M2016060

M3 - Article

AN - SCOPUS:84978427327

VL - 57

SP - 1183

EP - 1191

JO - Materials Transactions

JF - Materials Transactions

SN - 1345-9678

IS - 7

ER -