Abstract
The aim of this study was to evaluate the biosorption capacity of selected strains of microscopic fungi. We optimized the biosorption process and used the Freundlich isotherm for three strains: H. haematococca BwIII43, K37 and T. harzianum BsIII33 to describe the biosorption equilibrium of anthraquinone dye, Alizarin Blue Black B (ABBB) and alkali lignin (AL). In optimal conditions (1 g of mycelium biomass, pH = 7.0, 28 °C) for ABBB and AL sorption, the live biomass of H. haematococca BwIII43 was characterized by a higher sorption capacity, amounting to 247.47 and 161.00 mg g−1, respectively. The highest sorption properties toward anthraquinone dye (K F = 19.96 mg g−1) were shown for the biomass of H. haematococca K37. In the presence of alkali lignin, the highest sorption capacity and bond strength exhibited the biomass of H. haematococca BwIII43 (K F = 28.20 mg g−1, n = 3.46). Effective decolorization of ABBB and AL by the selected strains of microscopic fungi indicated that the biosorption process additionally enhanced the removal of color compounds from the solution.
Highlights
Dye wastewater from textile and dyestuff industries is one of the most difficult industrial wastewaters to treat
The mycelium ability to absorb synthetic dyes, alkali lignin and other colored compounds found in industrial sewage, dyestuff and pulp or paper mills has been already indicated earlier by many authors (Anastasi et al 2009; Grainger et al 2011; Karthikeyan et al 2009; Sadhasivam et al 2005, 2007, 2010)
Sorption of dyes by mycelium is considered by some authors as the initial stage of industrial wastewater decolorization with the participation of fungi (Aretxage et al 2001)
Summary
Dye wastewater from textile and dyestuff industries is one of the most difficult industrial wastewaters to treat. Textile dyes are one of organic substances, which effects on humans, animals and different ecosystems have been demonstrated. These pollutants can be transferred to the food chain, and they pose a threat to human health (Banat et al 1996). A wide variety of fungi, especially white-rot fungi, are capable of removing a wide range of dyes from industrial wastewaters (Fu and Viraraghavan 2001, 2002a, b). Previous data have demonstrated that fungal biomass demonstrates the biosorption ability of industrial dye (Fu and Viraraghavan 2002a, b). Biosorption mechanisms may play an important role in the decolorization of dyes by living fungi.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Environmental Science and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
