Biogas Potentials of Anaerobic Co-Digestion of Rumen Contents and Sewage Sludge

Authors : Francis James OGBOZİGE, Tanimu USMAN, Umar ABUBAKAR

Pages : 64-70

Doi:10.38061/idunas.819080

View : 50 | Download : 10

Publication Date : 2020-12-25

Article Type : Research Paper

Abstract :Sewage sludge insert ignore into journalissuearticles values(SS); and rumen contents insert ignore into journalissuearticles values(RC); are produced daily in waste stabilization ponds and abattoirs respectively as organic wastes. However, these wastes could pose a threat to the environment if not properly managed hence, this research investigated the potentials of these wastes in generating biogas. This was achieved by digesting different SS/RC ratios anaerobically for 75days and recording the biogas produced under mesophilic condition. The SS and RC were obtained from Ahmadu Bello University insert ignore into journalissuearticles values(ABU); waste stabilization pond and cattle insert ignore into journalissuearticles values(Bos indicus); respectively, while the SS/RC ratios considered are 1:0, 0:1, 1:1, 1:2 and 2:1. Results showed that co-digestion at SS/RC ratios 1:1, 1:2 and 2:1 produced more biogas compared to mono-digestions of equivalent volumes of SS insert ignore into journalissuearticles values(1:0); and RC insert ignore into journalissuearticles values(0:1);. This is because the daily biogas potentials for SS/RC ratios 1:0, 0:1, 1:1, 1:2 and 2:1 are 3.59, 5.61, 6.09, 6.67 and 5.79ml per gram of TS added respective. In other words, biogas potential for SS improved by 69.64, 85.79 and 61.28% when co-digested with RC at SS/RC ratios 1:1, 1:2 and 2:1 respectively, while that of RC improved by 8.56, 18.89 and 3.21% at SS/RC ratios 1:1, 1:2 and 2:1 respective. Hence, it was concluded that co-digestion of SS and RC at SS/RC ratio 1:2 produced more biogas followed by 1:1 and 2:1 accordingly.
Keywords : Biogas, Mesophilic, Rumen, Sludge

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