Publication
Treatment and energy valorisation of an agro-industrial effluent in upflow anaerobic sludge reactor (UASB)
| dc.contributor.author | Martins, Ramiro | |
| dc.contributor.author | Boaventura, Rui | |
| dc.contributor.author | Paulista, Larissa Oliveira | |
| dc.date.accessioned | 2020-04-29T10:46:16Z | |
| dc.date.available | 2020-04-29T10:46:16Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | The accelerated growth of the population brings with it an increase in the generation of agro-industrial effluents. The inadequate discharge of these effluents significantly affects the quality of water resources. In this way, it becomes important to invest in treatment processes for agro-industrial effluents, particularly low-cost ones. In this context, the present study includes the design and construction of a UASB reactor and optimization of the anaerobic digestion treatment of the raw effluent from chestnut production in the agro-industrial company Sortegel. The efficiency of the system was evaluated through the determination / monitoring of Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD5), Total Suspended Solids (TSS), biogas production rate and quality (% methane). The reactor was fed for 25 weeks and operated under mesophilic conditions (temperature 30-40°C). Different values were tested for the hydraulic retention time (HRT) and volumetric flow rate (QV): 0.66 days (QV=1509 L.m-3.d-1); 1.33 days (QV=755 L.m-3.d-1); 2.41 d days (QV=415 L.m-3.d-1). The average COD removal efficiency reached values of 69%, 82% and 75%, respectively, and simultaneously the associated CBO5 removal efficiency was 84%, 91% and 70%. As regards TSS, removal values were 78%, 94% and 63%. In addition, high methane production rates were obtained, between 2500 and 4800 L CH4.kg-1 COD removed.d-1. For all the hydraulic retention times tested, high concentrations of methane in the biogas were recorded: 66-75%, 70% and 75% for HRT of 0.66, 1.33 and 2.41 days, respectively. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Martins, Ramiro; Boaventura, R.; Paulista, L. (2017). Treatment and energy valorisation of an agro-industrial effluent in upflow anaerobic sludge reactor (UASB). In WMESS 2017 World Multidisciplinary Earth Sciences Symposium. Prague, Czech Republic | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10198/21859 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Energy valorization | pt_PT |
| dc.subject | Agro industrial effluent | pt_PT |
| dc.subject | UASB reactor | pt_PT |
| dc.subject | Effluent treatment | pt_PT |
| dc.title | Treatment and energy valorisation of an agro-industrial effluent in upflow anaerobic sludge reactor (UASB) | pt_PT |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Prague, Czech Republic | pt_PT |
| oaire.citation.title | WMESS 2017 World Multidisciplinary Earth Sciences Symposium | pt_PT |
| person.familyName | Martins | |
| person.givenName | Ramiro | |
| person.identifier.ciencia-id | EA17-F39C-29C7 | |
| person.identifier.orcid | 0000-0003-4327-7782 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
| relation.isAuthorOfPublication | bf713e37-c17f-4a4e-8323-a7b770a038bf | |
| relation.isAuthorOfPublication.latestForDiscovery | bf713e37-c17f-4a4e-8323-a7b770a038bf |