Decolorization and biodegradation of remazol reactive dyes by Clostridium species

Abstract

Decolorisation and biodegradation efficacy of potential strains isolated from dyeing effluent collected from Tirupur region, Tamil Nadu, India were studied in remazol reactive dyes. Two potential strains Clostridium butyricum (EI05) and Clostridium acetobutylicum (EI25) identified by biochemical tests in our previous study were studied for their decolorising efficiency on various remazol reactive dyes (Remazol Blue RGB, Remazol Blue RR, Remazol Navy RGB and Remazol Orange RR). The synthetic dyes showed complete decolorization after 24–72 h by two potential strains EI05 and EI25. Clostridium acetobutylicum (EI25) was found to be the most potential strain isolated. The spectral analysis was performed by UV–Visible spectroscopy and FT-IR spectroscopy to study biodegradation. The peak disappearance in UV spectrum, peak shifts and disappearance in FTIR spectrum of treated samples indicated biodegradation. Thus Clostridium species could able to decolorize the remazol reactive dyes.

Deriving electricity from dye processing wastewater using single chamber microbial fuel cell with carbon brush anode and platinum nano coated air cathode

“…Bacillus, Ochrobactrum, Clostridium and Pseudomonas covered almost equal percent (14-16%) of 0.05 dominance compare to other strains after 40 days of operation. Previous studies were in agreement with the strains reported in the present study such Bacillus (Shaikh et al 2016), Clostridium (Ekambaram et al 2016) and Pseudomonas (Jayaprakash et al 2016) to treat dye wastewater in MFC. Ochrobactrum was reported as dominant strain by Jayashree et al (2015) in continuous upflow MFC to treat retting pond wastewater.…”

Newly Designed Hydrolysis Acidification Flat-Sheet Ceramic Membrane Bioreactor for Treating High-Strength Dyeing Wastewater

“…Clostridium sp. was reported to achieve complete decolorization of Remazol reactive dyes after 24–72 h [ 30 ]. Alkalibaculum sp.…”

Epoxide functionalized γ‐Al2O3/Fe3O4/SiO2 nanocomposite and comparative adsorption behavior of a model reactive azo dye

“…The interaction of RN with γ‐Al 2 O 3 /Fe 3 O 4 /SiO 2 /PGMA nanocomposite polymer particles was evaluated by recording FTIR spectra of the adsorbent materials before and after adsorption. In the FTIR spectrum of RN dye (Figure ), the broad signal at 3438 cm −1 represents –NH stretching vibration, sharp signal at 1611 cm −1 represents N=N stretching vibration of azo compounds, signal at 1481 cm −1 represents N‐H trans stretching of secondary amides, signal at 1130 cm −1 corresponds to S=O asymmetric stretching of sulfones and signals at 720 and 618 cm −1 correspond to C–H bending vibrations . The spectrum of γ ‐ Al 2 O 3 /Fe 3 O 4 /SiO 2 /PGMA nanocomposite polymer particles before dye adsorption shows strong absorption signals at 1729.10 and 1153.40 cm −1 for C=O and C–O stretching vibrations of ester group, weak absorption bands at around 958 and 848 cm −1 for epoxide group, absorption signal at 2930 cm −1 for aliphatic C‐H stretching vibration and bands at 1630 and 3435 cm −1 for H–O–H stretching and bending vibrations .…”