Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Biochars and hydrochars prepared by pyrolysis and hydrothermal carbonisation of pig manure
Year:2018
Research Areas
  • Soil science,
  • Environmental protection,
  • Pollution control measures,
  • Waste management,
  • Engineering
Information
Abstract
Pyrolysis of organic wastes for biochar preparation has been proved as a useful way of waste management. However, the elevated water content of some organic wastes precludes its use without a drying step before pyrolysis treatment. For this reason, hydrothermal carbonization (HTC) of wet biomass could be an inexpensive alternative management method. The main objective of the present work is to compare the properties of biochars and hydrochars obtained from thermal treatment of pig manure. Biochars were prepared at 300 ºC (BPM300), 450 ºC (BPM450) and 600 ºC (BPM600) and hydrochars were obtained using a pig manure solution (ratio 30:70) that was heated at 200 ºC (HPM200), 220 ºC (HPM220) and 240 ºC (HPM240) during 2 h. Characterization of biochar and hydrochar samples showed that pyrolysis led to chars with more aromatic structures and high thermal stability while HTC process originated chars with more aliphatic structures. HPM220 and HPM240 showed the highest values of field capacity water content and available water probably due to their higher O/C ratios and the macroporosity development in the range from 200 to 30,000 nm. These results suggested that HTC could be an interesting method to obtain soil growing media or green roof materials with adequate hydrophysical properties.
International
No
JCR
No
Title
Waste Management
ISBN
0956-053X
Impact factor JCR
Impact info
Volume
Journal number
From page
395
To page
403
Month
SEPTIEMBRE
Ranking
Participants
  • Autor: Gabriel Gasco Guerrero (UPM)
  • Autor: Jorge Paz Ferreiro (UPM)
  • Autor: Maria Luisa Alvarez Calvo (UPM)
  • Autor: Antonio Saa Requejo (UPM)
  • Autor: Ana Maria Mendez Lazaro (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM). Centro Mixto UPM-AGROMUTUA-ENESA
  • Departamento: Producción Agraria
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)