Sulfate-based coagulants can suppress methanogenesis in treated oil sands fine tailings.

ABSTRACT: Bitumen extraction from mined oil sands ore generates a large volume of fluid fines tailings (FFT) that must be incorporated into either aquatic or terrestrial reclamation landforms. Mine operators are developing various tailings technologies to accelerate FFT dewatering, including the addition of chemical coagulants and flocculants. However, the impacts of these coagulants and flocculants on biogeochemical processes in treated FFT are not fully understood. We conducted anaerobic batch experiments to examine the influence of different doses (i.e., 0, 500, 1000, and 1500 ppm) of sulfate-based coagulants, including aluminum sulfate (alum) [Al₂(SO₄)₃∙nH₂O], ferric sulfate (ferric) [Fe₂(SO₄)₃∙nH₂O], and cal

SUBMITTER: Adene PA 

PROVIDER: S-EPMC12363050 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature