Lab-scale biogas production from co-digestion of super-intensive shrimp sludge and potential biomass feedstocks

نویسندگان

چکیده

This study evaluated biogas production potentials from local biomass feedstocks comprising of rice straw (RS), steamed lemongrass (SL), bagasse (BA) and desiccated coconut (DC) on super-intensive shrimp sludge (SS) anaerobic digestion. A series batch digestion experiments was conducted at an organic loading rate 50 g-VS L-1 a C/N ratio 25 under mesophilic conditions. The results indicate that co-digested substrates are more suitable than single except for DC supplementation, which exhibited severe pH inhibition methanogenesis activities. reactor supplemented with BA achieved the highest overall (126.78 L kg-VSadded-1), increased yields 53.70% compared to mono-sludge reactor. Furthermore, reactors RS SL by 26.40% 29.21%, respectively. Irrespective initial materials, H2S concentration in compositions measured very high levels (23,710 - 65,040 ppm) after 10-15 days digestion, while decreasing trend recorded remaining period (16 60 days), yet still maintained relatively (5,873 9,155 ppm). suggests future works should focus neutralization within removal composition.

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ژورنال

عنوان ژورنال: Journal of energy systems

سال: 2022

ISSN: ['2602-2052']

DOI: https://doi.org/10.30521/jes.973569