Combining pre-treatment strategies for broilers industry waste valorization
Rosana Krauss Niedzialkoski,
Monica Sarolli Silva de Mendonça Costa,
Luiz Antonio de Mendonça Costa,
Larissa Macedo dos Santos Tonial,
Felippe Martins Damaceno,
Higor E. Francisconi Lorin,
Jakson Bofinger,
Maico Chiarelotto
Affiliations
Rosana Krauss Niedzialkoski
Research Group on Water Resources and Environmental Sanitation, Western Paraná State University, Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário, Cascavel, Parana, 85.819-110, Brazil; Corresponding author.
Monica Sarolli Silva de Mendonça Costa
Research Group on Water Resources and Environmental Sanitation, Western Paraná State University, Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário, Cascavel, Parana, 85.819-110, Brazil
Luiz Antonio de Mendonça Costa
Research Group on Water Resources and Environmental Sanitation, Western Paraná State University, Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário, Cascavel, Parana, 85.819-110, Brazil
Larissa Macedo dos Santos Tonial
Federal University of Technology - Parana – UTFPR, Academic Department of Chemistry, Campus Pato Branco, Parana, Brazil
Felippe Martins Damaceno
Research Group on Water Resources and Environmental Sanitation, Western Paraná State University, Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário, Cascavel, Parana, 85.819-110, Brazil
Higor E. Francisconi Lorin
Research Group on Water Resources and Environmental Sanitation, Western Paraná State University, Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário, Cascavel, Parana, 85.819-110, Brazil
Jakson Bofinger
Research Group on Water Resources and Environmental Sanitation, Western Paraná State University, Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário, Cascavel, Parana, 85.819-110, Brazil
Maico Chiarelotto
Research Group on Water Resources and Environmental Sanitation, Western Paraná State University, Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário, Cascavel, Parana, 85.819-110, Brazil
aiming at expanding the possibilities for broiler slaughter wastes valorization, composting piles were submitted, at different time points (T0, T10, T20, T30 and Control) representing the treatments, to a solid-liquid fraction separation (FS), after being submerged in water (2:1, water:compost, in the fresh weight). After FS, solid material separated with a strain was again placed in piles for the final stage of composting, being evaluated the organic composts obtained after the stabilization phase (65 days) and maturation (95 days), in the different treatments. Reductions in mass (60–62%) and volume (56–64%) were greater in piles submitted to FS in comparison to control piles (52% and 54%). On the other hand, the FS induced greater losses of C (70.3–71.3%), N (55–62%), P (41.7–54.4%) and K (62.3–72.1%) in comparison to the control (65.2%, 48.0%, 28.1%, and 37.6%, respectively). We conclude that, as a way of integrating bioprocesses, FS does not have negative effects on the composting process. Moreover, compost mixtures from FS-treated piles, when used as substrate, yield better seedlings in comparison to mixtures from control.
