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Author Pabon-Pereira, C.P.; de Vries, J.W.; Slingerland, M.A.; Zeeman, G.; van Lier, J.B.
Title Impact of crop-manure ratios on energy production and fertilizing characteristics of liquid and solid digestate during codigestion Type
Year 2014 Publication (up) Environmental Technology Abbreviated Journal Environ. Technol.
Volume 35 Issue 19 Pages 2427-2434
Keywords anaerobic digestion; codigestion; digestate; energy crops; maize silage; manure
Abstract The influence of maize silage-manure ratios on energy output and digestate characteristics was studied using batch experiments. The methane production, nutrients availability (N and P) and heavy metals' content were followed in multiflask experiments at digestion times 7, 14, 20, 30 and 60 days. In addition, the available nutrient content in the liquid and solid parts of the digestate was evaluated. Aanaerobic digestion favoured the availability of nutrients to plants, after 61 days 20-26% increase in NH4+ and 0-36% increase in PO43- were found in relation to initial concentrations. Digestion time and maize addition increased the availability of PO43-. Inorganic nutrients were found to be mainly available in the liquid part of the digestate, i.e. 80-92% NH4+ and 65-74% PO43-. Manure had a positive effect on the methane production rate, whereas maize silage increased the total methane production per unit volatile solids in all treatments.
Address [Pabon-Pereira, C. P.] Univ Adolfo Ibanez, Fac Engn & Sci, Penalolen, Santiago De Chi, Chile, Email: claudia.pabon@uai.cl
Corporate Author Thesis
Publisher Taylor & Francis Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0959-3330 ISBN Medium
Area Expedition Conference
Notes WOS:000337615000004 Approved
Call Number UAI @ eduardo.moreno @ Serial 385
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Author Pabon-Pereira, C.; Slingerland, M.; Hogervorst, S.; van Lier, J.; Rabbinge, R.
Title A Sustainability Assessment of Bioethanol (EtOH) Production: The Case of Cassava in Colombia Type
Year 2019 Publication (up) Sustainability Abbreviated Journal Sustainability
Volume 11 Issue 14 Pages 23 pp
Keywords cassava; bioethanol; energy crops; sustainability analysis; biofuels; bioenergy production
Abstract This paper shows how system design determines sustainability outcomes of cassava bioethanol production in Colombia. The recovery of the energy contained in by-products is recommended as compared to single product production. In particular, this study assesses the energy, greenhouse gases, water, and land use performance of alternative cassava cascades working at different scales, highlighting the implications of including anaerobic digestion technology in the chain. The centralized systems showed a poorer energy and greenhouse gases performance as compared to decentralized ones in part due to the artificial drying of cassava chips in the centralized facility. Under solar drying of cassava chips, systems with anaerobic digestion produced three to five times more energy than demanded and produced greenhouse gas savings of 0.3 kgCO(2eq) L EtOH-1. The water balance output depends upon the water reuse within the ethanol industry, which demands 21-23 L EtOH-1. In the anaerobic digestion scenarios, assuming liquid flows are treated separately, complete water recovery is feasible. Land use for cassava cultivation was calculated to be 0.27-0.35 ha tEtOH(-1). The energy and water content of the material to digest, the options for digestate reuse, and the recovery of the methane produced are major considerations substantially influencing the role of anaerobic digestion within cassava cascade configurations.
Address [Pabon-Pereira, Claudia] Univ Adolfo Ibanez, Fac Engn & Sci, Santiago 7910000, Chile, Email: claudia.pabon@uai.cl
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2071-1050 ISBN Medium
Area Expedition Conference
Notes WOS:000482261800212 Approved
Call Number UAI @ eduardo.moreno @ Serial 1050
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