An optimization study for bio-removal of lead from aqueous environments by alkali modified Polyporus Squamosus
Abstract
Rapidly increasing industrialization and urbanization cause serious environmental pollution. Discharge of polluting material from various industries such as smelting, mining, ore processing, and metal plating into the environment without treatment causes serious pollution and can have dangerous effects on the environmental balance. The utilization of low-cost adsorbents from biological materials as a replacement for costly traditional methods for adsorption of heavy metal pollutants from wastewater was reviewed. This study aimed to investigate the biosorption of Pb(II) ions from aqueous solutions with NaOH-modified Polyporus squamosus biosorbent and optimize the biosorption conditions. Firstly, the parameters most influencing the response of the biosorption for Pb(II) (initial Pb(II) concentration (Co), pH, temperature and biomass dose) were determined using Central Composite Design (CCD). The optimum conditions were evaluated as 60.76 mg/L, 6.3, 25 °C, and 0.23 g for Co, initial pH, temperature and biomass dose, respectively. From the optimum conditions, the adsorption yield and the adsorption capacity were obtained as 93.8% and 23.63 mg/g, respectively.
Keywords
Biosorption, Lead, Polyporus squamosus, Response Surface Methodology
Thanks
We would like to thank Prof. Dr. Yusuf Uzun (Van Yuzuncu Yil University) for providing the biosorbent used in this study.
References
- Garg U., Kaur M.P., Jawa G.K., Sud D., Garg V.K., "Removal of cadmium (II) from aqueous solutions by adsorption on agricultural waste biomass", Journal of Hazardous Materials, 154, (2008), 1149-1157.
- Liao S.-W., Lin C.-I., Wang L.-H., "Kinetic study on lead (II) ion removal by adsorption onto peanut hull ash", Journal of the Taiwan Institute of Chemical Engineers, 42, (2011), 166-172.
- Gupta V.K., Ali I., "Removal of lead and chromium from wastewater using bagasse fly ash—a sugar industry waste", Journal of Colloid and Interface Science, 271, (2004), 321-328.
- Muhamad H., Doan H., Lohi A., "Batch and continuous fixed-bed column biosorption of Cd2+ and Cu2+", Chemical Engineering Journal, 158, (2010), 369-377.
- [5] Yang X., Zhao Z., Yu Y., Shimizu K., Zhang Z., Lei Z., Lee D.-J., "Enhanced biosorption of Cr(VI) from synthetic wastewater using algal-bacterial aerobic granular sludge: Batch experiments, kinetics and mechanisms", Separation and Purification Technology, 251, (2020), 117323.
- Coday B.D., Xu P., Beaudry E.G., Herron J., Lampi K., Hancock N.T., Cath T.Y., "The sweet spot of forward osmosis: Treatment of produced water, drilling wastewater, and other complex and difficult liquid streams", Desalination, 333, (2014), 23-35.
- Ecer U., Şahan T., "A response surface approach for optimization of Pb (II) biosorption conditions from aqueous environment with Polyporus squamosus fungi as a new biosorbent and kinetic, equilibrium and thermodynamic studies", (2018).
- Li X., Xu H., Gao B., Shi X., Sun Y., Wu J., "Efficient biosorption of Pb(II) from aqueous solutions by a PAH-degrading strain Herbaspirillum chlorophenolicum FA1", Journal of Industrial and Engineering Chemistry, 57, (2018), 64-71.
- Bano A., Hussain J., Akbar A., Mehmood K., Anwar M., Hasni M.S., Ullah S., Sajid S., Ali I., "Biosorption of heavy metals by obligate halophilic fungi", Chemosphere, 199, (2018), 218-222.
- Shi L., Deng X., Yang Y., Jia Q., Wang C., Shen Z., Chen Y., "A Cr (VI)-tolerant strain, Pisolithus sp1, with a high accumulation capacity of Cr in mycelium and highly efficient assisting Pinus thunbergii for phytoremediation", Chemosphere, 224, (2019), 862-872.