Biosorption of reactive dye from aqueous media using Saccharomyces cerevisiae biomass. Equilibrium and kinetic study

Abstract

The biosorption Brilliant Red HE-3B reactive dye by nonliving biomass, Saccharomyces cerevisiae, in batch procedure was investigated. Equilibrium experimental data were analyzed using Freundlich, Langmuir and Dubinin — Radushkevich isotherm models and obtained capacity about 104.167 mg g−1 at 20°C. The batch biosorption process followed the pseudo-second order kinetic model. The multi-linearity of the Weber-Morris plot suggests the presence of two main steps influencing the biosorption process: the intraparticle diffusion (pore diffusion), and the external mass transfer (film diffusion). The results obtained in batch experiments revealed that the biosorption of reactive dye by biomass is an endothermic physical-chemical process occurring mainly by electrostatic interaction between the positive charged surface of the biomass and the anionic dye molecules. The biosorption mechanism was confirmed by FT-IR spectroscopy and microscopy analysis

Removal of Dye Toxicity from an Aqueous Solution Using an Industrial Strain of Saccharomyces Cerevisiae (Meyen)

“…It can therefore be said that AB 161 dye has high affinity for S. cerevisiae (Meyen) biomass. Suteu et al (2013) conducted studies on intraparticle diffusion with dead S. cerevisiae biomass and concluded that diffusion is not the driving force of the biosorption process. This likely occurred due to the low affinity between the dye tested and the cell wall of the yeast.…”

“…The cell wall of S. cerevisiae is composed of chitin, mannoproteins, and glucans (Lipke and Ovalle 1998). Biosorption occurs at low intensities at heterogeneous sites and is predominantly stronger at a specific site (Suteu et al 2013).…”

“…According to Suteu et al (2013), S. cerevisiae biomass begins to deteriorate at 318.15 K, undergoing changes in sorption properties and is not recommended to use this or higher temperatures for the biosorption of dyes. However, this phenomenon was not observed in the present investigation.…”

“…In this context, biosorption using a microorganism biomass is a viable alternative. The advantages of this process include the lower cost, the elimination of ecological risk stemming from the recovery of toxic compounds, the possibility of treating large volumes of effluents, and the fact that the source material is inexhaustible (Suteu et al 2013). Another advantage of using the microbial biomass as an adsorbent is the use of dead cells as biomass, which in addition to increasing efficiency in adsorption, also ensures that if the biomass enter in contact with the environment does not occur any damage ( S r i n i v a s a n a n d V i r a r a g h a v a n 2 0 1 0 ) .…”

Saccharomyces cerevisiae İLE REMAZOL SARI (RR) BOYASININ KESİKLİ SİSTEMDE BİYOSORPSİYONU

“…Suteu vd. çalışmalarında Brilliant Red HE-3B rekatif boyasının sulu çözeltilerden giderimini ölü formdaki Saccharomyces cerevisiae ile kesikli sistemde incelemişlerdir [9]. Mahmoud çalışmasında Remazol mavi giderimini Saccharomyces cerevisiae ile tekrarlı-kesikli sistemde incelemiştir [10].…”