Exploring the potential of biofunctionalized agricultural waste adsorbents integrated with UV-LED disinfection for enhanced wastewater treatment
Mkilima T. Sabitov Y. Shakhmov Z. Abilmazhenov T. Tlegenov A. Jumabayev A. Turashev A. Kaliyeva Z. Utepbergenova L.
June 2024Elsevier Ltd
Case Studies in Chemical and Environmental Engineering
2024#9
Agricultural waste holds promise as an adsorbent in wastewater treatment; however, its potential remains understudied, particularly regarding biofunctionalized grape pomace, coffee husks, and corn cobs for carwash wastewater treatment, along with their integration with solar-powered UV-LED disinfection. This study explores the effectiveness of these bio-functionalized adsorbents in wastewater treatment, revealing grape pomaces high efficacy in removing lead (95.2%), fluorides (94.4%), and nitrates (94.8%), while corn cobs and coffee husks showed significant removal efficiencies for zinc (88.5% and 95.5%, respectively) and cyanides (84.8% and 89.6%, respectively). Grape pomace exhibited a maximum adsorption capacity (qmax) of 162.6 mg/g for lead ions, while coffee husks had the highest qmax of 182.82 mg/g. Kinetic analysis indicated corn cobs slower initial adsorption capacity and moderate adsorption rate, contrasting with grape pomace and coffee husks. Furthermore, treatment with these adsorbents, followed by UV-LED disinfection, substantially reduced microbial counts in treated water, underscoring their potential in ensuring water safety. The integration of biofunctionalized adsorbents with UV-LED disinfection presents a promising approach for sustainable and efficient wastewater treatment, with implications for water quality improvement and public health protection.
Agricultural waste materials , Biofunctionalization , Biosorption , Coffee husks , Corn cobs , Grape pomace , Wastewater treatment
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Department of Environmental Engineering and Management, The University of Dodoma, P. O. Box 259, Dodoma, Tanzania
Faculty of Architecture and Construction, Department of Technology of Industrial and Civil Engineering, L.N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Department of Environmental Engineering and Management
Faculty of Architecture and Construction
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