Abstract
• Silica powder was produced from rice husk residue after pyrolysis of biomass. • The produced powder was explored for tannery wastewater treatment. • The obtained adsorbent displayed a unimodal mesoporous structure 17 nm. • The sono-chemically prepared silica is efficient for the removal of chromium. • Suitability of present pathway was proven for large-scale treatment of wastewater. The silica powders extracted from rice husk through the normal, and sono-chemical precipitation were explored for the treatment of tannery wastewater. The effect of aging time on adsorptive performance of silica was evaluated via the studying the morphological, and textural characteristics. The uptake of chromium species seems to be dependent of aging time due to unimodal distribution of mesopores in the interval of 2.4–38.2 nm. The sono-chemically prepared silica exhibited a good affinity for the decontamination of tannery wastewater, 98 %, with adsorption capacity ∼185 mg g −1 .
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
