Poultry Effluent Bio-treatment with Spirodela intermedia and Periphyton in Mesocosms with Water Recirculation.

BASÍLICO, G.; DE CABO, L.; MAGDALENO, A.; FAGGI, A.

WATER AIR AND SOIL POLLUTION

SPRINGER

Lugar: Berlin; Año: 2016

0049-6979

Industrialproduction of poultry meat is associated with indirect environmental impactssuch as contributing to climate change and deforestation and other directimpacts such as the  deterioration of thequality of surface waters. Poultry industry effluents are rich in organicmatter, nitrogen, and phosphorus; nutrients can be removed from wastewaterthrough the use of macrophytes and periphyton. An essay in mesocosms with poultryindustry wastewater recirculation was developed in the presence and absence ofa native macrophyte Spirodela intermedia and periphyton from a lowland stream(La Choza stream, Buenos Aires) where the effluent is poured. The diffusion ofO2 ,increased by water recirculation, had the effect of increasing the concentrationof dissolved oxygen in wastewater. The presence of S. intermedia and algaeperiphyton significantly contributed to the removal rates (%) of solids (69.7±3.9),ammonium nitrogen (84.0±3.4), and total phosphorus (38.1±1.8) from residualwater and favored nitrification. The dominance of Bacillariophyceae on othergroups of algae of periphyton and the low representation of Euglenophyceaeindicated an advanced stage of the effluent treatment process at the end of theassay.