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Effect of a termal pre-treatment and the temperature range on anaerobic digestion of water hyacinth (Eichornia Crassipes)
Ferrer Martí, Ivet; Campos Pozuelo, Elena; Palatsi Civit, Jordi; Porras, Silvia; Flotats Ripoll, Xavier
Universitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental; Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia; Universitat Politècnica de Catalunya. GREA - Grup de Recerca d´Enginyeria Agro-Ambiental
Water Hyacinth (WH -Eichornia Crassipes) causes environmental problems in tropical areas, such as water eutrophication. A possible solution is to collect the plant and to use it for biogas production, trying to valorise the waste heat from the CHP unit, which is a limitation in tropical areas. The aim of the present work was to study the effect of a thermal pre-treatment at 80ºC on biodegradability of WH and to contrast the anaerobic process in mesophilic and thermophilic temperatures. Biodegradability tests were performed at 35ºC and 55ºC with thermal pre-treated and no pre-treated substrates. It is concluded that thermal pre-treatment at 80ºC do not enhance anaerobic digestion of WH, and total methane yields are similar for mesophilic (188.72 L CH4/kg VS) and thermophilic (191.04 L CH4/kg VS) assays, indicating no differences in final biodegradability. Nevertheless, the rates of methane production were higher for thermophilic assays
Àrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua
Biogas
Water hyacinth--Environmental aspects
Water Hyacinth
anaerobic digestion
thermal pre-treatment
mesophilic
thermophilic
Jacint d'aigua
Biogàs
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