Effect of Agitation on Anaerobic Co-Digestion of Swine Manure and Food Waste
نویسندگان
چکیده
The synergism of food waste associated with swine manure can provide an increase in biogas production, besides promoting greater stability the anaerobic co-digestion process. To verify this effect, tests were performed two reactors, one agitation, and other without agitation. In both systems, gasometers used to measure production experiment lasting hydraulic retention times (HRT). On each feeding day, temperatures ambient effluent taken from reactors measured, samples collected perform analysis pH, total solids (TS), volatile (VS), fixed (FS), acidity (AV), alkalinity (TA). addition, chemical oxygen demand (COD) was determined every five days, gas composition at beginning second HRT. As important results, a decrease pH verified due weakening buffer effect medium. This low found waste, causing contents reactors. volume produced higher reactor which meant increased efficiency Finally, methane content through chromatographic analyses, indicating reduction activity microorganisms present Thus, it is concluded that agitation linked exerted positive on production.
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ژورنال
عنوان ژورنال: Brazilian Archives of Biology and Technology
سال: 2021
ISSN: ['1678-4324', '1516-8913']
DOI: https://doi.org/10.1590/1678-4324-2021200102