Laopaiboon, Lakkana, Niphaphat Phukoetphim, and Pattana Laopaiboon. 2006. “Effect of Glutaraldehyde Biocide on Laboratory-Scale Rotating Biological Contactors and Biocide Efficacy”. Electronic Journal of Biotechnology 9 (4). Valparaíso, Chile:0-0. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v9n4-10.