Co-digestion of sewage sludge and fat, oil, and grease with BioAmp pretreatment under mesophilic conditions

نویسندگان

چکیده

This study investigated the potential benefit of co-digesting sewage sludge (SS) and settled/mixed fat, oil, grease (FOG) with BioAmp pretreatment, a bio-additive product, for utility. was found to increase soluble chemical oxygen demand (SCOD)/COD ratio FOG (from 4.19 4.49), consequently enhancing volatile solid (VS) reduction 75.9 84.8%). The SS co-digestion based on their actual daily production volume, resulting in content ranging between 15 20% VS assays. Co-digestion mixed waste after pretreatment produced highest cumulative methane yield (CMY) 400 mL/g VSadded, which is 98% higher than that mono-digestion (202 VSadded). Kinetic analysis demonstrated synergistic effect both increased CMY degradation rate constant. For utility, can by 141%; however, 7.77% more biosolids are 6% total nitrogen will return mainstream, burden nutrient management. Overall, results batch test benefits terms CMY, constant, reduction. utility showed produce biogas but also return.

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ژورنال

عنوان ژورنال: Biomass Conversion and Biorefinery

سال: 2021

ISSN: ['2190-6823', '2190-6815']

DOI: https://doi.org/10.1007/s13399-021-01418-9