Related Experiment Video
Updated: Jul 18, 2026

Methods for Facilitating Microbial Growth on Pulp Mill Waste Streams and Characterization of the Biodegradation Potential of Cultured Microbes
Published on: December 12, 2013
Decolourisation of a synthetic textile effluent using a bacterial consortium
Patrícia A C F Ramalho1, M Helena Cardoso, M Teresa Ramalho
1University of Minho, Department of Biology, Braga, Portugal. patramalho@bio.uminho.pt
Abstract:
In the present study we examined the performance of a thermoalkalophilic bacterial consortium, where the predominant strain was Bacillus sp. SF, in the degradation of Reactive Black 5 (RB5). We used a reactor working in continuous mode and investigated the effects of pH, hydraulic retention time (HRT) and several added salts on colour and chemical oxygen demand (COD) reductions. For the chosen operational conditions (pH 9, 55 degrees C and HRT of 12 h) the efficiencies achieved were 91.2 +/- 0.8 % for colour removal and 81.2% for COD removal. The system tolerated, with no significant decrease in colour removal efficiency, 30 g/L Na(2)SO(4), Na(2)CO(3) or NaCl. The latter two salts, however, led to a reduction in COD removal of 30% and 50%, respectively. The system proved to be very effective in the decolourisation of C.I. RB5 under alkaline conditions and at a comparatively high temperature.
More Related Videos
09:27Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
Published on: April 22, 2016
15:19Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
Related Concept Videos
Biological Treatment of Effluent and Waste Water
Bioremediation
Microbial Wastewater Treatment
Microbial Bioremediation of Plastics
Microbial Bioremediation of Hydrocarbons