Effects of bioremediation on the anaerobic biodigestion process of cattle manure
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.006.0039Keywords:
Biogas, Renewable energy, Enzymes, Waste treatmentAbstract
Dairy cattle manure is widely used in anaerobic digestion, however, it has characteristics that require mediation to achieve better performance. Thus, the objective was to evaluate the application of increasing doses and an overdose of bioremediator in the anaerobic digestion of manure from dairy cattle. A completely randomized design was used, with four treatments, corresponding to the four tested bioremediation doses (0; 0.5; 1.0 and 10 mL), carried out at room temperature, in bench-top digesters with a useful volume of 1.8 L The results were submitted to polynomial regression, and significant models were selected. The results showed that the application of bioremediation to bovine dairy manure interfered with the performance of the process, and the tested dose of 1.0 mL up to the estimated dose of 5 mL of bioremediation improved the potentials of biogas and methane production and the reductions in solids.
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