Congo red is a synthetic azo-dye dye with many industrial applications. The effluents containing azo dyes are causing several environmental hazards and thus should be treated prior to their discharge. The present work investigates the possible use of a novel microbial consortium from sheep compost for the decolorization of Congo red dye. The effect of different parameters including contact time...

The high demand for dyes in the paper, cosmetic, clothing, leather, and food industries drives up use of as a result industrialization. As result, wastewater production from dye manufacturing activities will rise. presence their structural compounds industrial sources place humans, animals plants lives at risk. Synthetic are more challenging to decolorize because they resistant chemical physica...

The knowledge of the oxidative mechanisms displayed by white-rot fungi for lignin biodegradation is important to assess the complete potential pplication of their lignin-degrading metabolites, as the biodegradation of several pollutants by these fungi has been directly correlated to their apability to degrade lignin. In this context, to obtain better knowledge of their oxidative systems, we stu...

Azo dyes are very resistant to light-induced fading and biodegradation. Existing advanced oxidative pre-treatment methods based on the generation of non-selective radicals cannot efficiently remove these dyes from wastewater streams, and post-treatment oxidative dye removal is problematic because it may leave many byproducts with unknown toxicity profiles in the outgoing water, or cause expensi...

The long-term performance of a submerged membrane fungi reactor was observed while a synthetic textile wastewater containing either or both of the two structurally different azo dyes was continuously fed. Compared to the Acid Orange II dye (simpler structure), higher biosorption but slower biodegradation of the polymeric dye (Poly S119) was observed in sterile batch tests. In the membrane biore...

Recombinant proteins represent a large sector of the biopharma market. Determination of the main elimination pathways raises the opportunities to significantly increase their half-lives in vivo. However, evaluation of biodegradation of pharmaceutical biopolymers performed in the course of pre-clinical studies is frequently complicated. Noninvasive pharmacokinetic and biodistribution studies in ...

Two biological approaches for decolorization of azo sulfonated dyes have been compared: reductive decolorization with the ascomycete yeast Issatchenkia occidentalis and enzymatic oxidative decolorization with Trametes villosa laccase alone or in the presence of the mediator 1-hydroxybenzotriazole. The redox potential difference between the biological cofactor involved in the reductive activity ...

Crystal violet is a triphenylmethane dye which is commonly used in the clothing industry to dye wool, silk and cotton (Kim et al., 2005).While knowledge of the genes and enzymes involved in the biodegradation of this dye is restricted; the mechanistic pathway of its break down is well understood. Yatome and colleagues (1993) were the first to elucidate the degradation of crystal violet by Nocar...

The decolorization and degradation of Direct Blue 71 were investigated using a mono culture of Pseudomonas aeruginosa. The bacterium was able to decolorize the dye medium to 70.43 % within 48 h under microaerophilic conditions. The medium was then aerated for 24 h to promote the biodegradation of the aromatic amines generated from azo bond cleavage. Reduction in total organic carbon in dye medi...