Production of Methane from Aquatic Weeds and Other Organic Substrates Through Anaerobic Digestion Under Different Climates

The experiment was conducted under two conditions viz. room temperature and polyhouse temperature and included four treatments T 1 (Dal weed 100 %), T 2 (Dal weed + agricultural residue), T 3 (Dal weed + food waste) and T 4 (Dal weed + agricultural residue + food waste) with four replications for each treatment and statistically designed as completely randomized design (CRD) to investigate biogas production. The maximum methane production was observed in T 1 (531.25 mL kg -1 ) and T 4 (436.25 mL kg -1 ) under polyhouse and room temperature, respectively. The increase of pH, TS, VS and total nitrogen caused a corresponding increase in biogas production. Whereas, the decrease in ammonium nitrogen, total phosphorus, and COD triggered an increase in the production of biogas.