Remoción de colorantes reactivos empleando el hongo Bjerkandera adusta

Abstract

The manufacture of textiles in Colombia represents an important economic activity, with a participation in 6% of exports and generates sales of non-traditional products around 13%. This industry uses about 15% of the total water used for industrial work, discarding about 170,000 tons of wastewater per year in Colombia. The contamination caused in the dyeing stages is highlighted, since the dyes used have a fixing range between 68 and 80%. Initially, in the development of this project, the physicochemical and microbiological composition of the effluents from the dyeing process of the textile sector was determined, for which parameters such as alkalinity, hardness, BOD, COD, conductivity, solids and dissolved oxygen were taken into account. At the same time, the removal of dyes from synthetic wastewater was evaluated, using the white rot fungus Bjerkandera adusta. The removals obtained for the family of reactive dyes from the Bezaktiv family (vinylsulfonic dyes) were 30% for the blue V-2B 133 dye Bezaktiv, for the yellow dye V-5 GL was 91% for the red dye Bezaktiv V-5B was 74% using for the three media the Park-Robinson medium.