Journal
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
Volume 102, Issue 16, Pages 4550-4564Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/03067319.2020.1785439
Keywords
Lichen; Pseudoevernia furfuracea; biosorption; food dye; Allura red
Categories
Funding
- Cumhuriyet University Scientific Research Projects Commission
Ask authors/readers for more resources
This study investigates the biosorption process of the food colorant AR by lichen. The results show that lichen can efficiently remove AR from aqueous solutions, with a maximum removal efficiency of approximately 87%. The biosorption is found to be endothermic, possible, and spontaneous. Therefore, lichen can be a promising alternative biosorbent for the removal of AR from the environment and wastewater.
Allura red (AR), which is known as the monoazo class of synthetic food colourant(E129) has been widely used in food industries. Due to the potential toxicity of azo dyes and pathogenicity, the removal of AR from industrial wastewaters is very important environmentally. So, this article aims to investigate the biosorption process of AR by lichen (Pseudoevernia furfuracea) from aqueous solutions. Batch biosorption conditions of AR food dye onto lichen biosorbent as initial AR concentration, solution pH, contact time, temperature and recovery were investigated. From the results, it has been observed that the highest removal efficiency is approximately 87% at a contact time of 5 hours, initial AR food dye concentration of 1000 mgL(-1)and agitation speed of 150 rpm at natural pH 8.0. The maximum ARbiosorption capacity from the Langmuir model was found as 0.280 mol kg(-1)at 25 degrees C. Biosorption kinetics were analysed by using intra-particle diffusion and pseudo-second-order models. Biosorption thermodynamics has shown that ARbiosorption onto lichen biosorbent is endothermic, possible and spontaneous. The lichen (Pseudoevernia furfuracea) can become an alternative biosorbent for the removal of AR from the environment and wastewater.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available