Title:	Struvite crystallization mitigates reactive N losses from swine manure in-vessel composting.
Authors:	NICOLOSO, R. da S. HIGARASHI, M. M. OLIVEIRA, L. V. DALLA COSTA, M.
Affiliation:	RODRIGO DA SILVEIRA NICOLOSO, CNPSA; MARTHA MAYUMI HIGARASHI, CNPSA; LILIANE VIEIRA OLIVEIRA, UDESC/Lages; MORGANA DALLA COSTA, FACC.
Date Issued:	2017
Citation:	In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 5., 2017, Foz do Iguaçu, Anais... Concórdia: Sbera: Embrapa Suínos e Aves, 2017. SIGERA. p. 349-353.
Description:	ABSTRACT: We assessed the addition Mg and P salts to promote struvite crystallization and mitigate reactive N losses from a rotating drum (12 m3 ) used for in-vessel composting of swine manure. The tested treatments were: mixture of sawdust and swine manure (baseline) and the same mixture with the addition of magnesium sulfate and phosphoric acid (MgSO4+H3PO4). Struvite crystallization decreased NH3-N and TN losses by 96.5 and 46%, respectively. Higher N2O-N emissions were related with resolubilization of the struvite under lower pH conditions. Further research is needed to assess strategies for the stabilization of struvite crystals, minoring N losses and increasing nutrient concentration value of the organic compost.
Thesagro:	Suíno Abate Compostagem Adubo orgânico
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CNPSA)