2013 Fiscal Year Final Research Report
A development of novel decomposition technology for NDMA by short wavelength UV lamp
| Project/Area Number |
23760500
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Civil and environmental engineering
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
SAKAI Hiroshi 東京大学, 工学(系)研究科(研究院), 助教 (70533123)
|
|---|
| Project Period (FY) |
2011 – 2012
|
| Keywords | 紫外線水処理 |
|---|
| Research Abstract |
In this study, we picked up NDMA as a new disinfection by-product. We examined the efficiency of ultraviolet treatment as the treatment method. The potential benefit of ultraviolet radiation of shorter wavelength than traditional was revelaed. I examined the lamp of 222nm shorter than 254nm conventional lamp. We investigated the effect of dissolved matters on the decomposition efficiency of NDMA by 222nm lamp. We obtained a result which lamp is more suitable for the degradation, depending on water conditions. Further, it was found that using the novel fluorescent excimer lamp to output a 220-254nm, NDMA was decomposed efficiently while suppressing the formation of nitrite as a by-products.
|
