Evaluating role of immobilized periphyton in bioremediation of azo dye amaranth

Sadaf Shabbir, Muhammad Faheem, Naeem Ali, Philip G. Kerr, Yonghong Wu

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The aim of this study was to evaluate the bioremediation capabilities of three kinds of periphyton (i.e. epiphyton, metaphyton and epilithon) immobilized in bioreactors to decolorize and biodegrade the sulphonated azo dye, amaranth. Results showed that periphyton dominated by phyla including Cyanobacteria, Proteobacteria and Bacteroidetes. Complete removal of dye was shown by all the biofilms periphyton (epiphyton showed highest removal efficacy) over a range of initial concentrations (50–500 mg L−1) within 84 h at pH 7 and 30 °C. Biodegradation of amaranth was confirmed through FTIR and HPLC and the biodegradation pathways were detected by GC–MS/MS analysis. The azo bonds in the amaranth were successfully broken by periphyton and amaranth was converted to non-toxic, aliphatic compounds including isobutene, acetyl acetate and ethyl acetate. The results showed the potential application of immobilized periphyton at industrial scale for the removal of azo dyes from wastewater containing azo dye amaranth.
Original languageEnglish
Pages (from-to)395-401
Number of pages7
JournalBioresource Technology
Volume225
Early online date02 Dec 2016
DOIs
Publication statusPublished - 01 Feb 2017

Fingerprint Dive into the research topics of 'Evaluating role of immobilized periphyton in bioremediation of azo dye amaranth'. Together they form a unique fingerprint.

Cite this