大塚 治, 柳那 豊
We have developed a method for recycling selenium from Se-containing wastewater using the selenium-oxygen-reducing aerobic bacterium Pseudomonas stutzeri NT-1. The treatment of Se-containing wastewater with the NT-1 strain provided bio-selenium, which is mainly composed of organic matter and 11–14 mass% of Se. In the present study, we investigated the recovery of Se from bio-selenium by oxidizing roasting and chemical reduction. After thermodynamic calculations were performed to estimate the oxidation behavior during the roasting process, roasting experiments were conducted on bio-selenium under varying roasting conditions. The selenium in bio-selenium was recovered in the form of solid SeO2 with a purity of 99% in a maximum yield of 97% after roasting at 700°C. Furthermore, the chemical reduction of SeO2 to Se was carried out, and metallic Se with a purity of 99% (greater than metal) was obtained.
@article{c355af18-ffb2-4798-8bd1-6218d6243b5f,
title={Investigation of Selenium Recovery on Ox},
author={大塚 治 and 柳那 豊},
year={2026},
language={en}
}TY - JOUR TI - Investigation of Selenium Recovery on Ox AU - 大塚 治 AU - 柳那 豊 PY - 2026 LA - en ER -
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