Modelagem e otimização da codigestão anaeróbia de resíduos da suinocultura e mandioca

Authors

DOI:

https://doi.org/10.18265/2447-9187a2026id9180

Keywords:

biotecnologia ambiental, modelagem estatística, saneamento rural, sustentabilidade ambiental, tratamento de efluentes

Abstract

The growth of swine production and cassava processing chains has intensified the generation of liquid residues with high pollution potential. In this context, anaerobic co-digestion emerges as a promising alternative for the joint treatment of these effluents, combining environmental efficiency with the production of value-added by-products. This study aimed to optimize the anaerobic co-digestion of swine manure and cassava wastewater by evaluating the effects of mixing ratio and operating time on the removal of chemical oxygen demand (COD), color, and turbidity. The experiment was conducted using a Central Composite Rotational Design (CCRD), totaling 11 experimental runs. The data obtained enabled the adjustment of statistically significant mathematical models (p < 0.10), which adequately described the system behavior. The simultaneous optimization of the variables indicated as optimal condition the coded values of 0.26011 for swine manure proportion and 0.2943 for operating time, resulting in a global desirability of 0.83029. The maximum removal efficiencies observed were 80.99% for COD, 93.30% for color, and 76.10% for turbidity, demonstrating the technical feasibility of the tested treatment consortium as a sustainable alternative for the integrated management of agro-industrial residues.

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Published

2026-03-25

Issue

Section

Engenharias I - Engenharia Sanitária, Hidráulica e Ambiental

How to Cite

DE MELO NETO, J. D.; DE MELO, V. L. F. D.; FLECK, L. Modelagem e otimização da codigestão anaeróbia de resíduos da suinocultura e mandioca. Revista Principia, v. 63, 25 Mar.2026.