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Treatment of synthetic textile wastewater containing dye mixtures with microcosms

Yaseen, Dina A. and Scholz, Miklas LU (2018) In Environmental Science and Pollution Research 25(2). p.1980-1997
Abstract

The aim was to assess the ability of microcosms (laboratory-scale shallow ponds) as a post polishing stage for the remediation of artificial textile wastewater comprising two commercial dyes (basic red 46 (BR46) and reactive blue 198 (RB198)) as a mixture. The objectives were to evaluate the impact of Lemna minor L. (common duckweed) on the water quality outflows; the elimination of dye mixtures, organic matter, and nutrients; and the impact of synthetic textile wastewater comprising dye mixtures on the L. minor plant growth. Three mixtures were prepared providing a total dye concentration of 10 mg/l. Findings showed that the planted simulated ponds possess a significant (p < 0.05) potential for improving the outflow characteristics... (More)

The aim was to assess the ability of microcosms (laboratory-scale shallow ponds) as a post polishing stage for the remediation of artificial textile wastewater comprising two commercial dyes (basic red 46 (BR46) and reactive blue 198 (RB198)) as a mixture. The objectives were to evaluate the impact of Lemna minor L. (common duckweed) on the water quality outflows; the elimination of dye mixtures, organic matter, and nutrients; and the impact of synthetic textile wastewater comprising dye mixtures on the L. minor plant growth. Three mixtures were prepared providing a total dye concentration of 10 mg/l. Findings showed that the planted simulated ponds possess a significant (p < 0.05) potential for improving the outflow characteristics and eliminate dyes, ammonium-nitrogen (NH4-N), and nitrate-nitrogen (NO3-N) in all mixtures compared with the corresponding unplanted ponds. The removal of mixed dyes in planted ponds was mainly due to phyto-transformation and adsorption of BR46 with complete aromatic amine mineralisation. For ponds containing 2 mg/l of RB198 and 8 mg/l of BR46, removals were around 53%, which was significantly higher than those for other mixtures: 5 mg/l of RB198 and 5 mg/l of BR46 and 8 mg/l of RB198 and 2 mg/l of BR46 achieved only 41 and 26% removals, respectively. Dye mixtures stopped the growth of L. minor, and the presence of artificial wastewater reduced their development.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aromatic amine, Artificial fabric effluent, Biological treatment, Chemical oxygen demand removal, Dyes mixture, Lemna minor L., Mineralisation, Nutrient
in
Environmental Science and Pollution Research
volume
25
issue
2
pages
1980 - 1997
publisher
Springer
external identifiers
  • scopus:85033459416
ISSN
0944-1344
DOI
10.1007/s11356-017-0633-7
language
English
LU publication?
yes
id
667e61ab-4596-470d-b62d-9ec303d846cc
date added to LUP
2017-11-20 13:44:38
date last changed
2018-02-20 03:00:01
@article{667e61ab-4596-470d-b62d-9ec303d846cc,
  abstract     = {<p>The aim was to assess the ability of microcosms (laboratory-scale shallow ponds) as a post polishing stage for the remediation of artificial textile wastewater comprising two commercial dyes (basic red 46 (BR46) and reactive blue 198 (RB198)) as a mixture. The objectives were to evaluate the impact of Lemna minor L. (common duckweed) on the water quality outflows; the elimination of dye mixtures, organic matter, and nutrients; and the impact of synthetic textile wastewater comprising dye mixtures on the L. minor plant growth. Three mixtures were prepared providing a total dye concentration of 10 mg/l. Findings showed that the planted simulated ponds possess a significant (p &lt; 0.05) potential for improving the outflow characteristics and eliminate dyes, ammonium-nitrogen (NH<sub>4</sub>-N), and nitrate-nitrogen (NO<sub>3</sub>-N) in all mixtures compared with the corresponding unplanted ponds. The removal of mixed dyes in planted ponds was mainly due to phyto-transformation and adsorption of BR46 with complete aromatic amine mineralisation. For ponds containing 2 mg/l of RB198 and 8 mg/l of BR46, removals were around 53%, which was significantly higher than those for other mixtures: 5 mg/l of RB198 and 5 mg/l of BR46 and 8 mg/l of RB198 and 2 mg/l of BR46 achieved only 41 and 26% removals, respectively. Dye mixtures stopped the growth of L. minor, and the presence of artificial wastewater reduced their development.</p>},
  author       = {Yaseen, Dina A. and Scholz, Miklas},
  issn         = {0944-1344},
  keyword      = {Aromatic amine,Artificial fabric effluent,Biological treatment,Chemical oxygen demand removal,Dyes mixture,Lemna minor L.,Mineralisation,Nutrient},
  language     = {eng},
  number       = {2},
  pages        = {1980--1997},
  publisher    = {Springer},
  series       = {Environmental Science and Pollution Research},
  title        = {Treatment of synthetic textile wastewater containing dye mixtures with microcosms},
  url          = {http://dx.doi.org/10.1007/s11356-017-0633-7},
  volume       = {25},
  year         = {2018},
}