Remediation of lead toxicity with waste-bio materials from aqueous solutions in fixed-bed column using response surface methodology.

Autor:	Manzoor Shah A; Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, 453002, China.; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Mustafa Khan I; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Du Z; Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, 453002, China., Rasool R; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Habib Kant R; Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Mir S; Division of Soil Science, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Shalimar, 190025, Jammu and Kashmir, India., Sheikh TA; Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Jeelani Wani F; Division of Agricultural Economics and Statistics, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Ayoub Bhat M; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Bhat JA; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Chesti MH; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Ganie MA; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Hanif Mir Y; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Dolker T; Division of Soil Science and Agricultural Chemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Wadura, 193201, Jammu and Kashmir, India., Alharbi SA; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia., Alahmadi TA; Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh, 11461, Saudi Arabia., Ur Rahman S; Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2024 Jul 26; Vol. 10 (15), pp. e35173. Date of Electronic Publication: 2024 Jul 26 (Print Publication: 2024).
DOI:	10.1016/j.heliyon.2024.e35173
Abstrakt:	Heavy metal ions pose significant risks to human health, pelagic, and several other life forms due to perniciousness, tendency to accumulate, and resistance to biodegradation. Waste bio-materials extend a budding alternative as low-cost adsorbent to address the removal of noxious pollutants from wastewater on account of being cost-effective and exhibiting exceptional adsorption capacities. The current exploration was accomplished to gauge the performance of raw and modified human hair concerning lead scavenging in a down-flow fixed bed column. The appraisal of column performance under varying operational parameters encompassing bed height (15-45 cm), influent metal ion concentration (60-140 mg L -1 ), and a solution flow rate (20-40 mL min -1 ) was performed by breakthrough curve analysis. The consequences acquired were evaluated using the Yoon Nelson, Thomas, Adam-Bohart, and Bed Depth Service Time (BDST) model. Among these employed models, Bed Depth Service Time (BDST) and Thomas models exhibited the highest R-squared value compared to the Yoon Nelson and Adam-Bohart's model for most cases. In addition, the optimization of lead adsorption was followed using the Box-Behnken design of response surface methodology (RSM). The optimal conditions (desirability-1.00) for achieving a goal of maximum percent removal of lead ions were marked to be a bed height of 42.79 cm, solution flow rate of 20.92 mL min -1, and an initial metal concentration of 139.51 mg L -1 . Under these optimized conditions, the percent amputation of lead in a fixed bed was observed to be 82.31 %, while the results of the experiment performed approximately under these optimized conditions revealed a percent removal of 85.05 %, reflecting a reasonable conformity with values acquired through Box-Behnken design. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 The Authors.)
Databáze:	MEDLINE
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