Project/scholarship details
- Project/scholarship ID
129146
- Reference
PTDC/AAG-TEC/3048/2012
- FundRef URI
- Funder
FCT - Fundação para a Ciência e a Tecnologia, I.P.
- Funder's country
Portugal
- Funding program
5876-PPCDTI
- Funding amount
166,805.00 €
- Start date
2013-06-01
- End date
2015-09-30
Documents
Co-digestion of Sargassum sp. with glycerol and waste frying oil following a de...
Oliveira, João Vítor; Alves, M. M.; Costa, J. C.A response surface methodology was adopted to assess the optimal conditions for methane production from the macroalgae Sargassum sp. co-digested with glycerol (Gly) and waste frying oil (WFO). Three variables were tested: % total solids of algae (%TSSargassum sp.), co-substrate concentration (gGly/WFO L-1); and, co-substrate type (Gly or WFO). The Biochemical Methane Potential (BMP) of Sargassum sp. was 181±1 L...
Influence of degassing process, blank's headspace and inoculum type on the biod...
Costa, J. C.; Oliveira, João Vítor; Alves, M. M.Anaerobic digestion is a multi-step process for conversion of organics wastes to methane (CH4), for energy and biofuels production. The range of application is expanding, as well as the covered studies. The variety of equipment and methods used for access the biomethane potential in batch assays makes their comparison very difficult. This work aims to evaluate the influence of some parameters, like the type of ...
Co-digestion of Sargassum sp. with glycerol and waste frying oil: optimization ...
Oliveira, João Vítor; Alves, M. M.; Costa, J. C.A response surface methodology was adopted to assess the optimal conditions for methane production from the macroalgae Sargassum sp. Three variables were tested: % total solids of algae (%TSsargassum); co-substrate concentration (gwaste L-1); and, co-substrate type (glycerol or waste frying oil (WFO)). The Biochemical Methane Potential (BMP) of Sargassum sp. was 300 ± 3 L CH4 kg-1 COD. The co-digestion with gly...
Influence of inoculum, particle size and inoculum-substrate ratio on CH4 produc...
Costa, J. C.; Oliveira, João Vítor; Alves, M. M.The performance of Anaerobic Digestion (AD) of solids wastes is affected by several factors. Most of them are related to each other. Currently, publish studies about AD only care about the individual influence of these variables, discarding possible interaction. A response surface experimental design was used to determine the most important variables and possible interactions – influence of inoculum type (anaer...
Biohythane production from marine macroalgae Sargassum sp. coupling dark fermen...
Costa, J. C.; Oliveira, J. V.; Pereira, M. A.; Alves, M. M.; Abreu, A. A.Potential biohythane production from Sargassum sp. was evaluated in a two stage process. In the first stage, hydrogen dark fermentation was performed by Caldicellulosiruptor saccharolyticus. Sargassum sp. concentrations (VS) of 2.5, 4.9 and 7.4 g L−1 and initial inoculum concentrations (CDW) of 0.04 and 0.09 g L−1 of C. saccharolyticus were used in substrate/inoculum ratios ranging from 28 to 123. The end produ...
Response surface design to study the influence of inoculum, particle size and i...
Costa, J. C.; Oliveira, J. V.; Alves, M. M.Ulex europaeus is one of the world worst invaders vegetal species and its suitability for biogas production is significant. The effect of three factors affecting the Biochemical Methane Potential (BMP, expressed as volume of CH4 per mass of volatile solids of waste) and the biodegradability rate (k, expressed in volume of CH4 per mass of VS and time) of U. europaeus was assessed by a Central Composite Face Cent...
Biochemical methane potential of brewery by-products
Oliveira, João Vítor; Alves, M. M.; Costa, J. C.Beer production generates by-products with high energy potential, namely trub (Tr, dead yeast from the fermentation) and spent grain (SG, smashed barley grains). This work investigates the biochemical methane potential (BMP, volume of methane produced per volatile solids of substrateL kg1) of these by-products, performing batch anaerobic biodegradability assays. Single substrates were evaluated as well as a mix...
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