| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1878196 | Applied Radiation and Isotopes | 2009 | 6 Pages |
This paper describes the potential of using gamma radiation technology to degrade trichloroethylene (TCE) and perchloroethylene (PCE) wastewater.The experimental method is divided into two parts: (1) using the γ-ray to irradiate the TCE and PCE solution, the dose-rate is 10 Gy/minute, the irradiation dosage is 0–2.5 kGy and (2) self-making the UV irradiation system, the tube specification is 254 nm and 6 W, and turning on 8 tubes at the same time to make the irradiation.The efficiency of degradation ratio for γ-ray is better than UV in the range of 0.1–250 ppm; for example, as for the concentration of 0.1 ppm, when TCE is degraded to D90 and T90, the γ-ray only needed 46.7 Gy and took about 4.67 minutes, but UV needed to take about 28.1 minutes. The dose-concentration equations of TCE and PCE are: TCE: y=44.58+8.832x, R2=0.999; and PCE: y=81.33+12.81x, R2=0.997. We verified that the radiation technology is able to effectively degrade the organic chlorine wastewater without yielding the secondary pollution, and the TCE and PCE that degraded by using γ-ray will be reached US-EPA and Taiwan Effluent Standard (5 ppb).
