Several efforts have been carried out to present an efficient method for PMS activation. This work presented the use of UVC-LEDs (light emitting diodes) and US (ultrasound) to activate PMS for decolorization of Direct Orange 26 (DO26). The performance of UVC-LEDs/US/PMS process was effective in a broad range of pH (3.0–9.0). Complete decolorization was obtained in only 12 min in pH = 7.0 and 1.5 mM PMS. Bicarbonate and nitrite ions showed inhibitory effect on decolorization while sulfate, chloride, and nitrate had no significant effect on the performance of the process. Transition metals in homogenous (Fe2+ and Co2+) and heterogeneous forms (Fe3O4 and Co3O4) accelerated decolorization in UVC-LEDs/US/PMS system. The presence of turbidity declined the performance of UVC-LEDs/US/PMS through the prevention of PMS activation by UV and US. Compared to other oxidants (S2O8 2−, H2O2 and 2Na2CO3.3H2O2), PMS proved the higher function in decolorization of DO26 in UVC-LEDs/US/oxidant system. Scavenging experiments showed that 1O2, HO•, and SO4 •- contributed in the degradation of DO26. Moreover, the UVC-LEDs/US/PMS system could markedly increase the biodegradability of real textile wastewater. These results promised an effective process for degradation of organic pollutants from aquatic environment.
Environmental Science and Pollution Research – Springer Journals
Published: Dec 13, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera