Immobilization of phosphorus in cow manure during hydrothermal carbonization.
J Environ Manage
; 157: 49-53, 2015 Jul 01.
Article
en En
| MEDLINE
| ID: mdl-25881151
ABSTRACT
The surplus of manure phosphorus (P) with increasing livestock production might pose a risk of P loss to the environment due to the high mobility of P in manure. Thus, there is an increasing need to mitigate P loss from manure. This study aimed to investigate the effect of hydrothermal carbonization (HTC) on the immobilization of P in cow manure. The results demonstrated that the P content in cow manure was increased substantially by â¼20% after HTC, while the water-extractable P (WEP) and Mehlich-3-extractable P (MEP) in manure was reduced significantly by >80% and 50%, respectively. The decrease in P solubility might result from the increased apatite P (increased by >85%) and decreased soluble Ca (decreased by â¼50%) after HTC. These results suggested that HTC could be an efficient strategy to immobilize P in cow manure, thereby potentially mitigating the P loss problem from cow manure.
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Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Fósforo
/
Movimientos del Agua
/
Contaminantes del Agua
/
Carbono
/
Estiércol
Idioma:
En
Revista:
J Environ Manage
Año:
2015
Tipo del documento:
Article