Remediation of Cd and Cu contaminated water and soil using novel nanomaterials derived from sugar beet processing- and clay brick factory-solid wastes

• Published in: Journal of Hazardous Materials
• Main Author: Lashen Z.M., Shams M.S., El-Sheshtawy H.S., Slaný M., Antoniadis V., Yang X., Sharma G., Rinklebe J., Shaheen S.M., Elmahdy S.M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2022
• Subjects: Alkalinity; Costs; Hazardous materials; Hazards; Remediation; Soil pollution; Soils; Solid wastes; Sugar beets; Water pollution; Water treatment; Clay bricks; Contaminated soils; Contaminated water; Hazardous solid waste; Hazardous wastes; Low cost nanomaterial; Low-costs; Soils remediation; Toxic metals; Wastewater remediation; Nanostructured materials; cadmium; calcium hydroxide; carbonic acid; copper; phosphorus pentoxide; carbohydrate; heavy metal; nanomaterial; water; carbonate; industrial waste; sorption; sugar beet; aqueous solution; Article; controlled study; electric conductivity; hazardous waste; nanotechnology; scanning electron microscopy; Carbonic acid
• Online Access: http://hdl.handle.net/11615/75694; https://doi.org/10.1016/j.jhazmat.2021.128205

Producing nanomaterials from hazardous wastes for water and soil treatment is of great concern. Here, we produced and fully characterized two novel nanomaterials from sugar beet processing (SBR)- and brick factory-residuals (BFR) and assed their ability for Cd and Cu sorption in water and reducing metal availability in a contaminated soil. The SBR removed up to 99% of Cu and 91% of Cd in water, and exhibited a significantly faster and higher sorption capacity (qmax (g kg−1) = 1111.1 for Cu and 33.3 for Cd) than BFR (qmax (g kg−1) = 33.3 for Cu and 10.0 for Cd), even at acidic pH. Soil metal availability was significantly reduced by SBR (up to 57% for Cu and 86% for Cd) and BFR (up to 36% for Cu and 68% for Cd) compared to the unamended soil. The higher removal efficacy of SBR over BFR could be attributed to its higher alkalinity (pH = 12.5), carbonate content (82%), and specific surface area, as well as the activity of hydroxyl –OH and Si-O groups. The nano-scale SBR and BFR, the former particularly, are novel, of low cost, and environmental friendly amendments that can be used for the remediation of metal-contaminated water and soil. © 2022 Elsevier B.V.