“Reducing the Sludge Quantity Produced from Used Water Purification – A Source of Profit”. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 39, no. 4 (December 15, 2016): 61–63. Accessed November 2, 2026. https://ojs.ugal.ro/index.php/mms/article/view/1228.