21 documents found, page 1 of 3
Innovative waste activated sludge pre-treatment using a raceway pond reactor: i...
Monteiro, J. P.; Cruzeiro, C.; Duarte, Maria Salomé Lira; Pereira, M. A.; Vilar, V. J. P.A novel approach for the pre-treatment of waste activated sludge (WAS) prior to anaerobic digestion (AD) was implemented combining thermal and solar radiation using a raceway pond reactor (RPR). WAS pre-treatment at temperatures ranging from 50 to 70°C was applied for 5 hours under a solar UV power of 12.7 W (equivalent to a solar irradiance of 500 W m-2). Overall, higher temperatures and longer reaction times ...
Design and business: growing up as a separate couple
Duarte de Almeida, I.; Delgado, M. J.; Vilas-Boas, J.; Monteiro, J. P.; Montagna, G.This paper addresses the difficulties faced by postgraduate design students (DS) and professional designers (PD) concerning the design, development and implementation of business projects (BP), and of sustainable management (SM). The DS have not previously attended any specific course, either dealing with BP, or having had training in SM. A test administered to 60 DS enabled to picture issues regarding: (i) the...
Hydrogeological modelling at the South Portugal MARSOL demonstration sites
Lobo Ferreira, J. P. C.; Leitão, T. E.; Oliveira, M. M.; Martins, T.; Mota, R.; Monteiro, J. P.; Costa, L. R. D.; Hugman, R.; Carvalho, T.INTRODUCTION AND MAIN GOALS The main objectives of WP4 “DEMO Site 2: Algarve and Alentejo, South Portugal” are to demonstrate how MAR can contribute as an alternative source of water, in the context of an integrated and inter-annual water resources management, as well as in solving groundwater quality problems caused by previous agricultural practices and wastewater discharges. Three DEMO sites (Figure 1) have ...
Interim report for the Project Period June 2015 - February 2016
Leitão, T. E.; Lobo Ferreira, J. P. C.; Oliveira, M. M.; Martins, T.; Henriques, M. J. A.; Mota, R.; Barbosa, A. E.; Carvalho, T.; Carvalho, J.M.The work progress of WP4 between month 19 and 27 was conducted with the strong collaboration of the three Portuguese partners (LNEC, TARH and UAlg) as well as with the regional water authorities (APA Algarve and APA Alentejo), the water supply company (AdA, Águas do Algarve), and the General Direction for Agriculture (DRAPALG), some of the main potential users of MAR. As reported before, the main purposes of th...
Gestão de recarga induzida de aquíferos. Exemplos do projeto MARSol no Algarve
Leitão, T. E.; Lobo Ferreira, J. P. C.; Carvalho, T.; Monteiro, J. P.; Oliveira, M. M.; Agostinho, R.; Costa, L. R. D.; Martins, T.; Henriques, M. J. A.A utilização de técnicas de MAR (managed aquifer recharge, em nomenclatura inglesa ou gestão de recarga induzida de aquíferos) visa armazenar água em aquíferos durante períodos de excedentes podendo ajudar a resolver posteriores desafios de escassez de água e, assim, melhor gerir a variabilidade temporal da disponibilidade de água. Além disso, a qualidade da água pode ser melhorada através da sua circulação pel...
Monitoring results from the South Portugal - MARSOL demonstration sites
Leitão, T. E.; Lobo Ferreira, J. P. C.; Oliveira, M. M.; Martins, T.; Henriques, M. J. A.; Mota, R.; Carvalho, T.; Carvalho, J.M.; Agostinho, R.The main objectives of WP4 “DEMO Site 2: Algarve and Alentejo, South Portugal” are to demonstrate how MAR can contribute as an alternative source of water, in the context of an integrated and inter-annual water resources management, as well as in solving groundwater quality problems caused by previous agricultural practices and wastewater discharges. Three DEMO sites (Figure 1) have been chosen for WP4: PT1: ...
New test of the Gabardine infiltration basin for mar in rio Seco (Campina da Fa...
Oliveira, M. M.; Lobo Ferreira, J. P. C.; Leitão, T. E.; Costa, L. R. D.; Carvalho, T.; Agostinho, R.; Monteiro, J. P.The infiltration basin constructed in the GABARDINE project in Rio Seco stream (Algarve, Portugal) was rehabilitated during MARSOL project and a new infiltration test has been performed. The hydrogeological framework is presented and the new infiltration test is described and interpreted. The results are similar to those obtained during GABARDINE project, with calculated infiltration rates varying with water he...
Demonstrating managed aquifer recharge as a solution to water scarcity and drou...
Leitão, T. E.; Lobo Ferreira, J. P. C.; Carvalho, T.; Monteiro, J. P.; Oliveira, M. M.; Agostinho, R.; Costa, L. R. D.; Henriques, M. J. A.; Martins, T.This paper presents a synthesis of the work developed in Portugal, by LNEC, TARH and UAlg, for the European Union Seventh Framework Programme project "Demonstrating Managed Aquifer Recharge as a Solution to Water Scarcity and Drought – MARSOL". The main achievements gathered in the DEMO sites during 2014, the first year of the project, are briefly presented.
Interpretation of an injection test in a large diameter well in south Portugal ...
Costa, L. R. D.; Monteiro, J. P.; Oliveira, M. M.; Lobo Ferreira, J. P. C.; Leitão, T. E.; Carvalho, T.; Carvalho, J.M.; Agostinho, R.This paper refers to the interpretation of an injection test in a traditional large diameter well in Querença-Silves aquifer, south Portugal, under the scope of the project FP7-ENV-2013-WATER-INNO-DEMO MARSOL. Hydraulic parameter estimates were found within a high level of uncertainty regarding aquifer and well configuration. Given the injection test results together with the knowledge acquired on the field and...
Comparative assessment of climate change and its impacts on three coastal aquif...
Stigter, T. Y.; Nunes, J. P.; Pisani, B.; Fakir, Y.; Hugman, R.; Li, Y.; Tomé, S.; Ribeiro, L.; Samper, J.; Oliveira, R.; Monteiro, J. P.; Silva, A.A comparative study on climate change and its impacts on coastal aquifers is performed for three Mediterranean areas. Common climate scenarios are developed for these areas using the ENSEMBLES projections that consider the A1b scenario. Temperature and precipitation data of three climate models are bias corrected with two different methods for a historic reference period, after which scenarios are created for 2...