Degradation of azo dye in constructed wetland coupled with a microbial electrolysis cell

P. Srivastava, R. Abbassi, V. Garaniya, T. Lewis, A. Kumar Yadav

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

Azo dye is a recalcitrant pollutant and is difficult to degrade if present in wastewater. The complete degradation of dye is very difficult in various treatment systems such as constructed wetlands, activated sludge systems, anaerobic digestion, and absorption. A new approach based on a constructed wetland (CW) coupled with a microbial electrolysis cell (MEC) has been tested for this purpose. The experiment was performed on a laboratory scale in two microcosms: one microcosm was filled with normal gravel (Control-CW) while the other one was filled with graphite as a conductive material and connected to a solar panel (CW-MEC). Color and COD removal efficiency at different dye concentrations (1000, 1500 and 2000 mg/l) were investigated and the results compared. The results illustrate higher color removal efficiency by using the combined CW-MEC, which is a promising technique for the removal of dye in wastewater treatment.
Original languageEnglish
Title of host publication16th IWA International Conference on Wetland Systems for Water Pollution Control
Subtitle of host publicationconference proceedings
Pages29-32
Number of pages4
Publication statusPublished - 2018
EventIWA International Conference on Wetland Systems for Water Pollution Control (16th : 2018) - Valencia, Spain
Duration: 30 Sep 20184 Oct 2018

Conference

ConferenceIWA International Conference on Wetland Systems for Water Pollution Control (16th : 2018)
CountrySpain
CityValencia
Period30/09/184/10/18

Keywords

  • Microbial electrolysis cell
  • constructed wetlands
  • azo dye

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    Srivastava, P., Abbassi, R., Garaniya, V., Lewis, T., & Kumar Yadav, A. (2018). Degradation of azo dye in constructed wetland coupled with a microbial electrolysis cell. In 16th IWA International Conference on Wetland Systems for Water Pollution Control: conference proceedings (pp. 29-32)