Faecal-wood biomass co-combustion and ash composition analysis

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dc.contributor.authorSomorin, Tosin
dc.contributor.authorKolios, Athanasios J.
dc.contributor.authorParker, Alison
dc.contributor.authorMcAdam, Ewan J.
dc.contributor.authorWilliams, Leon
dc.contributor.authorTyrrel, Sean
dc.date.accessioned2017-06-07T15:18:11Z
dc.date.available2017-06-07T15:18:11Z
dc.date.issued2017-05-16
dc.description.abstractFuel blending is a widely used approach in biomass combustion, particularly for feedstocks with low calorific value and high moisture content. In on-site sanitation technologies, fuel blending is proposed as a pre-treatment requirement to reduce moisture levels and improve the physiochemical properties of raw faeces prior to drying. This study investigates the co-combustion performance of wood dust: raw human faeces blends at varying air-to-fuel ratios in a bench-scale combustor test rig. It concludes with ash composition analyses and discusses their potential application and related problems. The study shows that a 50:50 wood dust (WD): raw human faeces (FC) can reduce moisture levels in raw human faeces by ∼40% prior to drying. The minimum acceptable blend for treating moist faeces without prior drying at a combustion air flow rate of 14–18 L/min is 30:70 WD: FC. For self-sustained ignition and flame propagation, the minimum combustion temperature required for conversion of the fuel to ash is ∼400 °C. The most abundant elements in faecal ash are potassium and calcium, while elements such as nickel, aluminium and iron are in trace quantities. This suggests the potential use of faecal ash as a soil conditioner, but increases the tendency for fly ash formation and sintering problems.en_UK
dc.identifier.citationSomorin T, Kolios A, Parker A, et al., (2017) Faecal-wood biomass co-combustion and ash composition analysis. Fuel, Volume 203, September 2017, pp. 781-791en_UK
dc.identifier.cris17683389
dc.identifier.issn0016-2361
dc.identifier.urihttp://dx.doi.org/10.1016/j.fuel.2017.05.038
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11987
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectFaecal ashen_UK
dc.subjectCombustionen_UK
dc.subjectFuel blendingen_UK
dc.subjectNon-sewered sanitary systemsen_UK
dc.subjectNano-membrane toileten_UK
dc.subjectSoil conditioneren_UK
dc.titleFaecal-wood biomass co-combustion and ash composition analysisen_UK
dc.typeArticleen_UK

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