TY - JOUR AU - Almeida, Antonella Araujo de AU - Rosa, André Pereira AU - Sousa, Izabelle de Paula AU - Lopes, Juciara Oliveira AU - Melo, Silas Modesto de AU - Borges, Alisson Carraro PY - 2021/10/21 Y2 - 2024/03/29 TI - Performance of two parallel covered lagoon digesters in the treatment of pig farm wastewaters JF - Revista Engenharia na Agricultura - REVENG JA - Reveng VL - 29 IS - Contínua SE - Recursos Hídricos e Ambientais DO - 10.13083/reveng.v29i1.11576 UR - https://periodicos.ufv.br/reveng/article/view/11576 SP - 286-290 AB - <p>Pig farming moves a large part of the Brazilian economy. However, due to the high polluting potential, alternatives to treat and take advantage of the effluents must be developed, being the use of digesters a possible solution. This study aimed to evaluate the performance of two parallel covered lagoon digesters (CLD) in the treatment of swine wastewater. Monitoring was performed on a farm installed in Teixeiras, Minas Gerais, Brazil, in terms of COD in the period from August 2018 to July 2019. The study demonstrated that COD removal efficiency in the CLD was 40.2 and 39.5%, which did not indicate a statistical difference at a 5% significance level. The two digesters in parallel were compatible with each other in terms of COD reduction. Furthermore, individually they did not present significant changes in their performance in the summer and winter periods.</p> ER -