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| Content Provider | Springer Nature Link |
|---|---|
| Author | Maleki, Afshin Mahvi, Amir Hossein Ebrahimi, Roya Zandsalimi, Yahya |
| Copyright Year | 2010 |
| Abstract | The degradation of two commercially available dyestuffs (C.I. Reactive Black 5 and C.I. Disperse Orange 25) by ultraviolet radiation (UV), ultrasonic irradiation (US), UV/H$_{2}$O$_{2}$ and US/H$_{2}$O$_{2}$ processes was investigated in a laboratory-scale batch photoreactor equipped with a 55 W immersed-type low-pressure mercury vapor lamp and a sonoreactor with low frequency (42 kHz) plate type transducer at 170 W of acoustic power. The toxicity was also evaluated in acute toxicity studies using Daphnia magna. Results showed that color removal efficiencies by US and US/H$_{2}$O$_{2}$ processes were negligible for both dyes. Almost complete disappearance of Reactive Black 5 (97.9%) in UV/H$_{2}$O$_{2}$ process was possible after 5 min of irradiation. The maximum color removal efficiency of Disperse Orange 25 after 10 min of irradiation, however, was only 9.2% and reached a maximum value of 41% after 120 min of irradiation. Pseudo-first order kinetics with respect to dyestuffs concentrations was found to fit all the experimental data. The results clearly showed that both dyes examined were toxic to D. magna and resulted in quite low LC$_{50}$ values. |
| Starting Page | 1805 |
| Ending Page | 1810 |
| Page Count | 6 |
| File Format | |
| ISSN | 02561115 |
| Journal | Korean Journal of Chemical Engineering |
| Volume Number | 27 |
| Issue Number | 6 |
| e-ISSN | 19757220 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2010-07-24 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Decolorization Reactive Black 5 Disperse Orange 25 Advanced Oxidation Processes Toxicity Biotechnology Materials Science Catalysis Industrial Chemistry/Chemical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Chemical Engineering |
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