Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
HYDROCHARS FROM BIOSOLIDS AND URBAN WASTES AS SUBSTITUTE MATERIALS FOR PEAT
Year:2017
Research Areas
  • Waste conversion,
  • Agronomic research,
  • Engineering,
  • Mining operation
Information
Abstract
Peat is the most widely used substrate component and extensively used in greenhouse cultivation, landfill cover soils, urban parks and gardens, urban agriculture or green roofs, due to its excellent combination of physicochemical properties. The production of hydrochar by hydrothermal carbonization (a process at lower temperatures than pyrolysis and using wet conditions) could industrially reproduce the initial conditions of biomass humification and lead to materials with similar properties to those of peat. The objective of this work was to compare peat (PT, Control), a hydrochar prepared from biosolids (HSL), a hydrochar prepared from the organic fraction of urban wastes (HUW) and two mixtures (PT + HSL and PT + HUW) at a 50% volume rate for their potential use as substrates with multiple applications. Ryegrass was established at a rate of 40 g seeds cm?2 in the potting mixtures. Hydrophysical and biochemical properties (microbial biomass and the enzymes dehydrogenase, ?-glucosidase and phosphomonoesterase) were analyzed for PT, HSL, HUV and their combination (PT + HSL and PT + HUW). Treatments with biosolids hydrochar increased ryegrass production by 184% (HSL) and by 216% (PT + HSL) dry weight compared to the control (peat). Biochemical properties depended strongly on hydrochar type, while the hydrophysical properties of the hydrochars were similar to those of peat. Overall, our results found hydrochar?peat mixtures (PT + HSL and PT + HUW) to be suitable for the preparation of growing media. Copyright © 2017 John Wiley & Sons, Ltd.
International
Si
JCR
Si
Title
Land Degradation & Development
ISBN
1085-3278
Impact factor JCR
8,145
Impact info
Datos JCR del año 2015
Volume
Journal number
From page
-
To page
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Month
SIN MES
Ranking
Participants
  • Autor: Maria Luisa Alvarez Calvo (UPM)
  • Autor: Gabriel Gasco Guerrero (UPM)
  • Autor: César Plaza (Instituto de Ciencias Agrarias, CSIC,)
  • Autor: Jorge Paz Ferreiro (UPM)
  • Autor: Ana Maria Mendez Lazaro (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Ingeniería Geológica y Minera
  • 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)