Ahmed Khudhair, Haneen, and . . “Biodegradation of Quinoline by Hydrogel Beads of Activated Sludge in the Air-Lift Bioreactor”. International Journal of Engineering and Technology 7, no. 4.37 (December 13, 2018): 53–56. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/23615.