THE POSSIBILITY OF USING FERROMAGNETIC SLUDGE COLLECTED DURING PURIFICATION OF WATER FROM SPILLED OIL PRODUCTS. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 1, p. 168–170, 2019. DOI: 10.17770/etr2019vol1.4177. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4213.. Acesso em: 11 mar. 2026.