Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5740441 | International Biodeterioration & Biodegradation | 2017 | 8 Pages |
Abstract
The paper discusses the potential of different waste biomaterials for biosorption. Waste biomaterials after citric acid fermentation and chitosan extraction using Aspergillus niger were evaluated for biosorption of toxic metals (Cu, Cr and As) from leachates of chromated copper arsenate woods. The different waste BMs, such as fungal biomass (living and dead), alkali insoluble material and acid and alkali insoluble material were used in this study. The effect of different parameters, such as biosorbent concentration, metal concentration and contact time were investigated. The fitness of biosorption data for Freundlich and Langmuir adsorption models was investigated through batch adsorption technique. Among the adsorption isotherm tested, Langmuir isotherm gave the best fit with correlation coefficients (R2) value ranging from 0.89 to 0.97; 0.96-0.99 and 0.76-0.95 for As, Cr and Cu, respectively using solid state fermented biomass. Similarly, the significant removal of metals (>60% in leachate 2) from waste CCA wood leachate was achieved with the different BMs. Therefore, this study demonstrates the potential of CA fermentation derived waste BMs for biosorption of toxic metals from waste waters.
Keywords
Related Topics
Life Sciences
Environmental Science
Environmental Science (General)
Authors
Gurpreet Singh Dhillon, Guitaya Mande Lea Rosine, Surinder Kaur, Krishnamoorthy Hegde, Satinder Kaur Brar, Patrick Drogui, Mausam Verma,