
Keywords: پتاسیم دی هیدروژن فسفات; Algae; Anaerobic co-digestion; Biomass; Renewable energy; Waste paper; AD; anaerobic digestion; ANOVA; analysis of variance; F/I; feedstock/inoculum; KDP; potassium dihydrogen phosphate; MC; moisture content; RSM; response surface methodology; TS; total s