Comparison on mineralization of 2,4,6-tribromophenol by UV-based advanced oxidation processes: UV/Na2S2O8 and UV/H2O2

Comparison on mineralization of 2,4,6-tribromophenol by UV-based advanced oxidation processes:... Mineralization of 2,4,6-tribromophenol (TBP) in water by UV-based oxidation processes (AOPs) including UV/H2O2 and UV/Na2S2O8 (UV/PS) was explored in this work. There was firstly systematically and comparatively an investigation of these two AOPs on the mineralization of TBP for toxicity change, mineralization efficiency and economic cost. The effects of oxidant concentration, initial TBP concentration and pH on TOC removal were investigated. The results indicated both UV-based oxidation systems had optimum oxidant concentration when the [oxidant]/[TBP] molar ratio reached 15/1. As TBP can absorb UV-254 nm, the initial TBP concentration can influence oxidant decomposition, and their mutual effects decide TOC removal efficiency. Raising pH from 3 to 11 inhibited the mineralization of TBP slightly in the UV/PS process while the mineralization rate reach its highest at pH 9 and decreased dramatically at pH 11. The effect of three inorganic ions on the efficiency of these UV-based AOPs was investigated, and the results were in the order NO 3 −  > HCO 3 −  > Cl−. Toxicity tests with activated sludge showed that oxidation processes can effectively reduce the toxicity of TBP. BOD measurements also revealed that biodegradability improved with both oxidation processes while UV/PS performed better. According to the calculation of the two UV-based AOPs, UV/PS is the much more effective and economic way. However, the formation of BrO 3 − in the UV/PS system will limit its application in treating wastewater containing brominated organic pollutants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Comparison on mineralization of 2,4,6-tribromophenol by UV-based advanced oxidation processes: UV/Na2S2O8 and UV/H2O2

Loading next page...
 
/lp/springer_journal/comparison-on-mineralization-of-2-4-6-tribromophenol-by-uv-based-uQ1AGWoOb1
Publisher
Springer Netherlands
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-016-2812-4
Publisher site
See Article on Publisher Site

Abstract

Mineralization of 2,4,6-tribromophenol (TBP) in water by UV-based oxidation processes (AOPs) including UV/H2O2 and UV/Na2S2O8 (UV/PS) was explored in this work. There was firstly systematically and comparatively an investigation of these two AOPs on the mineralization of TBP for toxicity change, mineralization efficiency and economic cost. The effects of oxidant concentration, initial TBP concentration and pH on TOC removal were investigated. The results indicated both UV-based oxidation systems had optimum oxidant concentration when the [oxidant]/[TBP] molar ratio reached 15/1. As TBP can absorb UV-254 nm, the initial TBP concentration can influence oxidant decomposition, and their mutual effects decide TOC removal efficiency. Raising pH from 3 to 11 inhibited the mineralization of TBP slightly in the UV/PS process while the mineralization rate reach its highest at pH 9 and decreased dramatically at pH 11. The effect of three inorganic ions on the efficiency of these UV-based AOPs was investigated, and the results were in the order NO 3 −  > HCO 3 −  > Cl−. Toxicity tests with activated sludge showed that oxidation processes can effectively reduce the toxicity of TBP. BOD measurements also revealed that biodegradability improved with both oxidation processes while UV/PS performed better. According to the calculation of the two UV-based AOPs, UV/PS is the much more effective and economic way. However, the formation of BrO 3 − in the UV/PS system will limit its application in treating wastewater containing brominated organic pollutants.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Nov 26, 2016

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

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

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

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.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off