2013 Fiscal Year Final Research Report
Degradation of brominated flame retardant by the composite treatment of white-rot fungi and ultrasonic irradiation
| Project/Area Number |
23510093
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Environmental technology/Environmental materials
|
|---|
| Research Institution | University of Fukui |
|---|
Principal Investigator |
SAKURAI Akihiko 福井大学, 工学(系)研究科(研究院), 教授 (40283163)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | 白色腐朽菌 / 臭素系難燃剤 / 超音波 / 変異株 |
|---|
| Research Abstract |
The degradation of brominated flame retardant HBCD (hexabromocyclododecane) by the composite treatment of white-rot fungi and ultrasonic irradiation was investigated. Alpha-isomer of HBCD was efficiently degraded by the ultrasonic irradiation, and its degradation rate was higher than those of beta- and gamma-isomers. While the degradation rate of alpha-isomer by the white-rot fungi treatment was lower than the other isomers. In addition, manganese peroxidase, which was produced by the white-rot fungi during shaking culture, was efficiently degraded the HBCD.
As a composite degradation of the HBCD, the manganese peroxidase treatment was carried out just after 10 minutes of ultrasonic irradiation. The manganese peroxidase could degrade the HBCD using hydrogen peroxide produced by the ultrasonic irradiation.
|
