CFD modeling of a UV-A LED baffled flat-plate photoreactor for environment applications: a mining wastewater case

CFD modeling of a UV-A LED baffled flat-plate photoreactor for environment applications: a mining... The use of ultraviolet light in photoreactors for wastewater treatment has become popular as an alternative of known chemical oxidative substances. UV LED light represents cheaper, robust, and versatile alternative to traditional UV lamps. In this study, it was designed and evaluated a photoreactor with an approach of chemical fluid dynamics (CFD) and experimental validation. The evaluation consisted of (1) CFD velocity profile analysis, (2) characterization of the average light distribution with potassium 3− ferrioxalate actinometry, (3) degradation of a typical recalcitrant metallic cyanocomplex Fe(CN) , and (4) scavenger effect analysis in the photodegradation using potassium persulfate. Actinometrical essay concluded that the system was able to receive 3− 1.93 μE/s. The reactor operated under turbulent regime and best result for Fe(CN) degradation was obtained at 4 h of 2− operation, using 5-W UV-A LEDs, with pH ~ 7 and 10 mM de S O . Baffled photoreactor demonstrated to be useful for this 2 8 type of illumination and wastewater treatment. . . . . . Keywords Photoreactor UV LED Cyanocomplex CFD Actinometry Photodegradation Introduction several processes have been well described to remove cyanometallic compounds in wastewater. The most known pro- Gold extraction represents an important part of all http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environmental Science and Pollution Research Springer Journals

CFD modeling of a UV-A LED baffled flat-plate photoreactor for environment applications: a mining wastewater case

Loading next page...
 
/lp/springer_journal/cfd-modeling-of-a-uv-a-led-baffled-flat-plate-photoreactor-for-fO4KVa9hJe
Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Environment; Environment, general; Environmental Chemistry; Ecotoxicology; Environmental Health; Atmospheric Protection/Air Quality Control/Air Pollution; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
ISSN
0944-1344
eISSN
1614-7499
D.O.I.
10.1007/s11356-018-2431-2
Publisher site
See Article on Publisher Site

Abstract

The use of ultraviolet light in photoreactors for wastewater treatment has become popular as an alternative of known chemical oxidative substances. UV LED light represents cheaper, robust, and versatile alternative to traditional UV lamps. In this study, it was designed and evaluated a photoreactor with an approach of chemical fluid dynamics (CFD) and experimental validation. The evaluation consisted of (1) CFD velocity profile analysis, (2) characterization of the average light distribution with potassium 3− ferrioxalate actinometry, (3) degradation of a typical recalcitrant metallic cyanocomplex Fe(CN) , and (4) scavenger effect analysis in the photodegradation using potassium persulfate. Actinometrical essay concluded that the system was able to receive 3− 1.93 μE/s. The reactor operated under turbulent regime and best result for Fe(CN) degradation was obtained at 4 h of 2− operation, using 5-W UV-A LEDs, with pH ~ 7 and 10 mM de S O . Baffled photoreactor demonstrated to be useful for this 2 8 type of illumination and wastewater treatment. . . . . . Keywords Photoreactor UV LED Cyanocomplex CFD Actinometry Photodegradation Introduction several processes have been well described to remove cyanometallic compounds in wastewater. The most known pro- Gold extraction represents an important part of all

Journal

Environmental Science and Pollution ResearchSpringer Journals

Published: Jun 2, 2018

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