Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Pakistan Journal of Biological Sciences
  Year: 2008 | Volume: 11 | Issue: 10 | Page No.: 1310-1316
DOI: 10.3923/pjbs.2008.1310.1316
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Algal Decolorization and Degradation of Monoazo and Diazo Dyes

Hanan Hafez Omar

Abstract:
This study is to inspect how the variation of molecular structures and functional groups present in our models, monoazo dye (Tartrazine) and diazo dye (Ponceau), affects decolorization capabilities of green algae, cyanobacteria and diatoms. The results revealed that the removal of azo dyes was rapid at the initial period of study (3 days) and became slowly with the time (6 days). The maximum decolorization was observed at 5 ppm Tartrazine with S. bijugatus (68%) and N. muscourm after 6 days incubation. The reduction of color removal appears to be related to the molecular structure of the dyes and species of algae used. The culture of the diatom Nitzschia perminuta was completely died after 2 days of incubation. Azo reductase of algae, which is responsible for degradation of azo dyes into aromatic amine by breaking the azo linkage, was estimated. IR spectra represented a new peak at 3300 cm-1 and a reduction in the azo band at 1642-1631 cm-1. In order to investigate the sorption behavior of algae, Langmuir equilibrium model was tested.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Effect of Metals on Amaranth Decolorization by White-Rot Fungus Pleurotus eryngi F019
  •    Bacterial Decolourization of Acid Orange 10 in Synthetic Wastewater under Saline Conditions: Effect of Process Parameters
  •    Biosynthesis of Autoinducer-2 as the Possible Mechanism to Enhance Decolourisation of Azo Dye by Citrobacter freundii A1
  •    Comparative Analysis of Bioremediation Potential of Adapted and Non-Adapted Fungi on Azo Dye Containing Textile Effluent
How to cite this article:

Hanan Hafez Omar , 2008. Algal Decolorization and Degradation of Monoazo and Diazo Dyes. Pakistan Journal of Biological Sciences, 11: 1310-1316.

DOI: 10.3923/pjbs.2008.1310.1316

URL: https://scialert.net/abstract/?doi=pjbs.2008.1310.1316

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 

Curve Bottom