“During the expansion of the Chapecó slaughterhouse, we also looked for a supplier, who could offer a wastewater treatment solution that would support our growth plans. Once more, we found that with Marel and we also immediately understood that its performance would be much superior to the existing system”, says Luciana Frassetto de Campos Breda, sanitary engineer at Brazillian pork processor Aurora Alimentos.
Adequate wastewater treatment is a growing concern among companies in the meat processing sector. This is because the slaughter of pigs requires a large amount of water, which must be discharged. Wastewater contains blood, fat, excrement, fragments of tissues and other organic substances that, if discharged untreated in the environment will contaminate surface and underground water resources.
Until the new project at Chapeco Aurora Alimentos worked with a Marel water treatment system, which used an aerated stabilization lagoon system to treat effluents. However, they needed to think of an alternative that would optimize the land space dedicated to water treatment.
In addition, Aurora Alimentos needed to meet the environmental requirement to remove nitrogen as a condition for discharging treated water back into the riverbed. “In fact, we needed a smaller system, but more efficient and with greater control over all stages,” says Luciana Breda.