USE OF INOCULUM IN BIODIGESTERS WITH CATTLE MANURE UNDER CONVENTIONAL AND ORGANIC PRODUCTION SYSTEMS

AUTOR(ES)

Paes, Juliana L.; Alves, Thaís B. S.; Silva, Leonardo D. B. da; Marques, Anieli de S.; Dias, Valentina R. S.

FONTE

Eng. Agríc.

DATA DE PUBLICAÇÃO

2020-04

RESUMO

ABSTRACT One way of making livestock farming a more sustainable practice is to raise cattle organically. However, regardless of the production system, there is a generation of residues that can be converted into energy resources using biodigesters. This study aimed to evaluate the addition of inoculum in the anaerobic biodigestion of cattle manure under organic (OPS) and conventional production systems (CPS) in an Indian model biodigester. The physicochemical (pH, EC, TS, VS, DBO, and COD) and microbiological characteristics of the affluent and effluent, as well as the production, potential, and qualitative characteristics of the biogas, were evaluated. CPS showed higher reductions in TS, VS, BOD, and COD than OPS, with the highest effect of biogas production. Regarding the effect of inoculum addition, the treatment with 20% inoculum provided in both production systems high acceleration at the starting point of biogas production and increased energy potential, as well as high reductions in VS, BOD, and COD. Thus, there is a need to use 20% inoculum for high biogas productivity, regardless of the production system.

Documentos Relacionados

• BIOGAS PRODUCTION FROM DAIRY CATTLE MANURE, UNDER ORGANIC AND CONVENTIONAL PRODUCTION SYSTEMS
• Productivity and nutritive value of elephant grass pastures under organic and conventional production systems
• MATHEMATICAL MODELS FOR ESTIMATING METHANE PRODUCTION IN COVERED LAGOON BIODIGESTERS TREATING PIG MANURE
• Seed quality of common bean accessions under organic and conventional farming systems1
• SOIL CARBON STOCKS AND COMPARTMENTS OF ORGANIC MATTER UNDER CONVENTIONAL SYSTEMS IN BRAZILIAN SEMI-ARID REGION