Helena Nadais

Louros V.L., Lima D.L.D., Leitao J.H., Esteves V.I., Nadais H.G. (2019) Determination of estrone and 17 alpha-ethinylestradiol in digested sludge by ultrasonic liquid extraction and high-performance liquid chromatography with fluorescence detection. JOURNAL OF SEPARATION SCIENCE, 42 , (8), 1585-1592. See more

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Nadais H., Li X.H., Alves N., Couras C., Andersen H.R., Angelidaki I., Zhang Y.F. (2018) Bio-electro-Fenton process for the degradation of Non-Steroidal Anti-Inflammatory Drugs in wastewater. CHEMICAL ENGINEERING JOURNAL, 338 401-410. See more

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Ferreira C.I.A., Calisto V., Otero M., Nadais H., Esteves V.I. (2017) Removal of tricaine methanesulfonate from aquaculture wastewater by adsorption onto pyrolysed paper mill sludge. CHEMOSPHERE, 168 139-146. See more

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Ferreira C.I.A., Calisto V., Otero M., Nadais H., Esteves V.I. (2017) Fixed-bed adsorption of Tricaine Methanesulfonate onto pyrolysed paper mill sludge. AQUACULTURAL ENGINEERING, 77 53-60. See more

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Ferreira C.I.A., Calisto V., Otero M., Nadais H., Esteves V.I. (2016) Comparative adsorption evaluation of biochars from paper mill sludge with commercial activated carbon for the removal of fish anaesthetics from water in Recirculating Aquaculture Systems. AQUACULTURAL ENGINEERING, 74 76-83. See more

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Ferreira C.I.A., Calisto V., Cuerda-Correa E.M., Otero M., Nadais H., Esteves V.I. (2016) Comparative valorisation of agricultural and industrial biowastes by combustion and pyrolysis. BIORESOURCE TECHNOLOGY, 218 918-925. See more

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Gameiro T., Lopes M., Marinho R., Vergine P., Nadais H., Capela I. (2016) Hydrolytic-Acidogenic Fermentation of Organic Solid Waste for Volatile Fatty Acids Production at Different Solids Concentrations and Alkalinity Addition. WATER AIR AND SOIL POLLUTION, 227 , (10), . See more

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Gameiro T., Sousa F., Silva F.C., Couras C., Lopes M., Louros V., Nadais H., Capela I. (2015) Olive Oil Mill Wastewater to Volatile Fatty Acids: Statistical Study of the Acidogenic Process. WATER AIR AND SOIL POLLUTION, 226 , (4), . See more

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Alves E., Faustino M.A.F., Neves M.G.P.M.S., Cunha A., Nadais H., Almeida A. (2015) Potential applications of porphyrins in photodynamic inactivation beyond the medical scope. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 22 34-57. See more

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Couras C.S., Louros V.L., Gameiro T., Alves N., Silva A., Capela M.I., Arroja L.M., Nadais H. (2015) Anaerobic degradation of dairy wastewater in intermittent UASB reactors: influence of effluent recirculation. ENVIRONMENTAL TECHNOLOGY, 36 , (17), 2227-2238. See more

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Ferreira C.I.A., Calisto V., Santos S.M., Cuerda-Correa E.M., Otero M., Nadais H., Esteves V.I. (2015) Application of pyrolysed agricultural biowastes as adsorbents for fish anaesthetic (MS-222) removal from water. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 112 313-324. See more

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Vergine P., Sousa F., Lopes M., Silva F., Gameiro T., Nadais H., Capela I. (2015) Synthetic soft drink wastewater suitability for the production of volatile fatty acids. PROCESS BIOCHEMISTRY, 50 , (8), 1308-1312. See more

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Alves E., Rodrigues J.M.M., Faustino M.A.F., Neves M.G.P.M.S., Cavaleiro J.A.S., Lin Z., Cunha A., Nadais M.H., Tome J.P.C., Almeida A. (2014) A new insight on nanomagnet-porphyrin hybrids for photodynamic inactivation of microorganisms. DYES AND PIGMENTS, 110 80-88. See more

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Couras C.S., Louros V.L., Grilo A.M., Leitao J.H., Capela M.I., Arroja L.M., Nadais M.H. (2014) Effects of operational shocks on key microbial populations for biogas production in UASB (Upflow Anaerobic Sludge Blanket) reactors. ENERGY, 73 866-874. See more

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Clemencio C., Viegas M., Nadais H. (2014) Nitrogen and phosphorus discharge of animal origin in the Baixo Vouga: A spatial data analysis. SCIENCE OF THE TOTAL ENVIRONMENT, 490 1091-1098. See more

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Oliveira B., Quinteiro P., Caetano C., Nadais M., Arroja L., Ferreira da Silva E., Senos Matias M. (2013) Burial grounds impact on groundwater and public health: an overview. Water And Environment Journal, 27 99-106. See more

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Silva F.C., Serafim L.S., Nadais H., Arroja L., Capela I. (2013) Acidogenic fermentation towards valorisation of organic waste streams into volatile fatty acids. Chemical And Biochemical Engineering Quarterly, 27 , (4), 467-476. See more

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Oliveira B., Bola J., Quinteiro P., Nadais H., Arroja L. (2012) Application of Qual2Kw model as a tool for water quality management: Certima River as a case study. Environmental Monitoring And Assessment, 184 , (10), 6197-6210. See more

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Nadais H., Barbosa M.L., Ramos C.G., Grilo A., Sousa S.A., Capela I., Arroja L., Leitão J.H. (2011) Enhancing wastewater degradation and biogas production by intermittent operation of UASB reactors. Energy, 36 , (4), 2164-2168. See more

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Ramos, C.G., Grilo A.M., Sousa S.A., Barbosa M., Nadais H., Leitão J.H. (2010) A new methodology combining PCR, cloning, and sequencing of clones discriminated by RFLP for the study of microbial populations: application to an UASB reactor sample. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY , 85 , (3), 801-806. See more

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Silva F., Nadais H., Prates A., Arroja L., Capela I. (2009) Modelling of anaerobic treatment of evaporator condensate (EC) from a sulphite pulp mill using the IWA anaerobic digestion model No. 1 (ADM1). Chemical Engineering Journal, 148 319-326. See more

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Silva F., Nadais H., Prates A., Arroja L., Capela I. (2009) Molasses as an external carbon source for anaerobic treatment of sulphite evaporator condensate. Bioresource Technology, 100 , (6), 1943-1950. See more

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Capela I., Bilé M.J., Silva F., Nadais H., Prates A., Arroja L. (2009) Hydrodynamic behaviour of a full-scale anaerobic contact reactor using residence time distribution technique. Journal Of Chemical Technology And Biotechnology, 84 716-724. See more

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Barbosa M., Ramos C.G., Grilo A., Sousa S., Capela I., Arroja L., Leitão J.H., Nadais H. (2009) Bioenergy Production from Complex Wastewaters. ENERGY, ENVIRONMENT, ECOSYSTEMS, DEVELOPMENT AND LANDSCAPE ARCHITECTURE Book Series: Energy And Environmental Engineering Series , 257-262. See more

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Capela I, Rodrigues A, Silva F, Nadais H, Arroja L (2008) Impact of industrial sludge and cattle manure on anaerobic digestion of OFMSW under mesophilic conditions. Biomass & Bioenergy, 32 , (3), 245-251. See more

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Nadais H., Capela I., Arroja L. (2006) Intermittent vs continuous operation of upflow anaerobic sludge bed reactors for dairy wastewater and related microbial changes. Water Science And Technology , 2 , (54), 103-109. See more

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Nadais H., Capela I., Arroja L., Duarte A. (2005) Treatment of dairy wastewater in UASB reactors inoculated with flocculent biomass. Water SA, 4 , (19), 603-607. See more

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Nadais H., Capela I., Arroja L., Duarte A.C. (2005) Optimum cycle time for intermittent UASB reactors treating dairy wastewater. Water Research, 8 , (39), 1511-1518. See more

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Nadais, H., Capela, I., Arroja, L., Duarte, A. (2003) Biosorption of milk substrates onto anaerobic flocculent and granular sludge. Biotechnology Progress, 19 1053-1055. See more

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Nadais, H., Capela, I., Arroja, L., Duarte, A. (2001) Effects of organic, hydraulic and fat shocks on the performance of UASB reactors with intermittent operation. Water Science And Technology , 4 , (44), 45-56. See more

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Nadais M.H., Bernardo-Gil M.G. (1993) VAPOR-LIQUID-EQUILIBRIA OF ALPHA-PINENE PLUS LIMONENE AT REDUCED PRESSURES. FLUID PHASE EQUILIBRIA , 91 , (2), 321-330. See more

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Nadais H. , Abreu P. (2010) Strategies for implementation of environmental management systems in different organizations. International Journal Of Environmental Technology And Management, 12 , (1), 47-55. See more

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Grilo A.M., Ramos C.G., Sousa S.A., Marta L. Barbosa, Nadais H., Leitão J.H. (2010) Caracterização molecular de populações microbianas em reatores anaeróbios para o tratamento de efluentes. 85 , (1), 3-9. See more

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Couras C, Belo S, Grilo A M, Sousa S A, Ramos C G, Silva F C, Capela I, Arroja L, Leitão J H, Nadais H (in press) Compendium of Energy Science and Technology, Vol 9. (10 Vols), . J. N. Govil (ed), . (EDS.), Houston, USA,. Studium Press LLC, . . See more

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Christian G. Ramos, André M. Grilo, Paulo J.P. Costa, Helena Nadais, Jorge H. Leitão (2013) In: DNA Binding and DNA Extraction: Methods, Applications and Limitations. NEW YORK. NOVA PUBLISHERS. . See more

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Arroja L., Capela I., Nadais H., Serafim L., Silva F. (2012) Industrial Waste. Rijeck. INTECH. . 978-953-51-0253-3. See more

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Nadais H., Capela I., Arroja L., Hung, Y-T (2010) Handbook of Environmental Engineering. Applications of Environmental Biotechnology and Bioengineering. (EDS.), New Jersey. Humana Press, Inc., . 11 . See more

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Sousa, A.F.C. (2018) Biodegradação anaeróbia dos estrogénios estrona e 17α-etinilestradiol em lamas biológicas. MSc Thesis. . See more

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Nadine Beatriz Lima Alves (2015) Photodegradation of Sertraline by Solar Radiation and Influencing Factors. MSc Thesis. . See more

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Pires, André da Silva Neto Abranches (2015) Avaliação de risco ambiental na indústria em regime de responsabilidade ambiental. MSc Thesis. . See more

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Coelho, Fernando Anísio Perpétuo (2015) Contributos para o sistema de gestão da qualidade de uma indústria de equipamentos. MSc Thesis. . See more

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Nadais, H. (2002) Tratamento de efluentes de indústrias de lacticínios em reactores UASB com funcionamento intermitente. PhD Thesis. . See more

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Nadais, H. (1993) Eficiências de colunas de destilação de derivados da aguarrás. MSc Thesis. . See more

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Louros V., Lima D.L.D., Leitão J., Esteves V.I., Nadais H. (2018) Desenvolvimento de uma metodologia simples para a determinação de estrogénios em lamas de uma ETAR. Conferência Internacional de Ambiente em Língua Portuguesa (CIALP), 8-10 May, Aveiro, Portugal. See more

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Louros V., Lima D.L.D., Leitão J., Esteves V.I., Nadais H. (2018) Biodegradação anaeróbia de estrogénios em lamas de uma ETAR. Conferência Internacional de Ambiente em Língua Portuguesa (CIALP), 8-10 May, Aveiro, Portugal. See more

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Louros V., Sousa A., Lima D., Leitão J., Esteves V., Nadais H. (2018) Removal of estrone and 17α-ethinylestradiol by digested sludge under different conditions using batch experiments. 13th International Chemical and Biological Engineering Conference (CHEMPOR 2018), 2-4 October, Aveiro, Portugal. See more

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Louros V., Lima D., Leitão J., Esteves V., Nadais H. (2018) Development of a simple and inexpensive methodology for the determination of estrone and 17α-ethinylestradiol in sludge samples. 13th International Chemical and Biological Engineering Conference (CHEMPOR 2018), 2-4 October 2018, Aveiro, Portugal. See more

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Louros V., Lima D.L.D., Leitão J., Esteves V.I., Nadais H. (2017) Determination of estrogens in digested sludge by ultrasonic liquid extraction and HPLC with fluorescence detection. Reseach Day, 13 June, Aveiro, Portugal. See more

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Louros V., Lima D.L.D., Leitão J., Esteves V.I., Nadais H. (2017) Using ultrasonic liquid extraction for analysis of estrogens in sludge by HPLC with fluorescence detection. CIÊNCIA 2017 - Encontro com a Ciência e Tecnologia em Portugal, 03-05 July, Lisboa, Portugal. See more

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Ferreira, C.I.A, Calisto, C., Otero, M., Nadais, H., Esteves, V.I. (2016) Removal of Tricaine from Aquaculture waters using Pyrolysed Paper Mill Sludge: Fixed-Bed Column Studies. 5th Portuguese Young Chemists Meeting (5th PYCheM) and 1st European Young Chemists Meeting (1st EYCheM), 26th - 29th April 2016, Guimarães, Portugal. See more

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Ferreira C.I.A ., Calisto V ., Otero M ., Nadais H ., Esteves V.I . (2015) Removal of pharmaceuticals from water using pyrolysed biowastes as adsorbents. II Analytical Chemistry Symposium - Environmental occurrence, effects and removal of pharmaceuticals, June 26th 2015, University of Aveiro. See more

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ALVES N., COURAS C., LOUROS V., GAMEIRO T., CAPELA I., NADAIS H. (2015) Energy recovery from wood furniture industry wastewater in UASB reactors. EUROPMENT - 8th International Conference on Energy Planning, Energy Saving, Environmental Education, 7-9 November, Rome, Italy. See more

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Silva A, Couras C, Capela I, Arroja L, Nadais H (2014) Anaerobic degradation of dairy wastewater in intermittent UASB reactors: influence of effluent recirculation. 2013 International Conference on Environment, Energy, Ecosystems and Development (EEED2013), setembro 2013, Veneza, Itália. See more

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Pinto L, Nadais H (2014) Avaliação técnico-económica do reaproveitamento de biogás de uma ETAR. 10ª Conferência Nacional do Ambiente, novembro 2013, Aveiro, Portugal. See more

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Ferreira C.I., Calisto V., Nadais H., Esteves V.I. (2013) Remoção de Antidepressivos de Águas Superficiais por Adsorção em Biochars Produzidos a partir de Resíduos Industriais. 10ª Conferência Nacional do Ambiente, 06-09 Novembro 2013, Aveiro, Portugal. See more

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Clemêncio MC, Nadais H (2013) Descargas de azoto e fósforo de origem animal no Baixo Vouga. 10ª Conferência Nacional do Ambiente, novembro 2013, Aveiro, Portugal. See more

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Couras C, Capela I, Arroja L, Nadais H (2013) Biodegradação de efluentes de madeira em reatores anaeróbios. 10ª Conferência Nacional do Ambiente, novembro 2013, Aveiro, Portugal. See more

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Silva IA, Fernandes MC, Arroja L, Nadais H (2013) Oportunidade de aproveitamento da água residual num sistema de produção de cloro e derivados. 10ª Conferência Nacional do Ambiente, novembro 2013, Aveiro, Portugal. See more

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Carvalho I, Nadais H, Ferreira A (2013) Avaliação do processo de implementação de sistemas de gestão ambiental. 10ª Conferência Nacional do Ambiente, novembro 2013, Aveiro, Portugal. See more

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Ferreira C.I.A., Calisto V., Nadais H., Esteves V.I. (2013) Remoção de Antidepressivos de Águas Superficiais por Adsorção em Biochars Produzidos a partir de Resíduos Industriais. 10ª Conferência Nacional do Ambiente, 6-9 Novembro 2013, Aveiro, Portugal. See more

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Silva F., Nadais H., Arroja L., Capela I. (2011) AOX and COD removal from a kraft pulp bleaching effluent by anaerobic digestion. X Latin American Workshop and Symposium on Anaerobic Digestion (DAAL), 23rd – 27th October 2011, Ouro Preto, Brasil. See more

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Grilo A., Grilo AM, Ramos CG, Ramos C., Sousa SA, Sousa S., Arroja L, Arroja L, Capela I., Capela I, Leitão J., Leitão JH, Nadais H., Nadais H (2011) Optimizing energy production from wastewater by intermittent operation of anaerobic reactors. 19th European Biomass Conference and Exibition , , Berlin, Alemanha. See more

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Grilo A., Ramos C., Sousa S., Arroja L., Capela I., Leitão J., Nadais H. (2011) Microbial populations shifts as a tool for improving biogas production in anaerobic reactors. CEST 2011, , Rhodes, Greece. See more

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Leitão, H., Capela I., Arroja L., Sousa, S., Ramos, C., Grilo, A., Nadais, H. (2011) Caracterização molecular de populações microbianas de reatoresanaeróbios a operar contínua ou intermitentemente para o tratamento de efluentes. IST - Ambiente, Workshopo sobre Ciências e Engenharia do Ambiente, , Lisboa, Potrugal. See more

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Grilo AM, Ramos CG, Sousa SA, Arroja L, Capela I, Leitão JH, Nadais H (2011) Microbial Population Shifts as a Tool for Improving Biogas Production in Anaerobic Reactors. 12th International Conference on Environmental Science and Technology (CEST2011), setembro 2011, Rodes, Grécia. See more

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Grilo AM, Ramos CG, Sousa SA, Nadais H, Leitão JH (2011) Molecular characterization of microbial populations from UASB reactors treating dairy industry wastewaters. MICROBIOTEC2011, dezembro 2011, Braga, Portugal. See more

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Ramos C., Ramos CG, Grilo AM, Grilo A., Sousa SA, Sousa S., Capela I., Capela I, Arroja L., Arroja L, Leitão J., Leitão JH, Nadais H., Nadais H (2009) Characterization of microbial populations developed in UASB reactors operated in continuous and intermittent mode. ASPD5 Conference, , Aalborg, Denmark. See more

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Barbosa M., Ramos C., Grilo A., Sousa S., Capela I., Arroja L., Leitão J., Nadais H. (2009) Bioenergy production from complex wastewaters. 5th International Conference on Energy, Environment, Ecosystems and Sustainable Development, , Vouliagnemi, Greece. See more

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Silva F., Barbosa, M., Nadais, H., Prates, A., Arroja, L., Capela, I. (2009) Sugarcane mplasses as a low-cost statregy to improve stability of anaerobic treatment of a pulp mill. CORM V, , Lisboa, Potrugal. See more

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Nadais H, Barbosa ML, Ramos CG, Grilo AM, Sousa SA, Capela I, Arroja L, Leitão JH (2009) Enhancing wastewater degradation and biogas production by intermittent operation of UASB reactors. 5th Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES2009), setembro 2009, Dubrovnik, Croácia. See more

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Nadais H., Nadais H, Barbosa M., Barbosa M, Capela I., Capela I, Arroja L, Arroja L (2008) Novel operation mode for anaerobic Systems treating dairy wastewater. International Conference on Environmental Science and Technology, , Houston, U.S.A.. See more

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Nadais H., Leitão J., Cunha A., Almeida A., Capela I., Arroja L. (2008) Intermittent operation of UASB reactors as a way to improve biomass adaptation to complex substrates. IX Taller y Simposio Latino Americano de Digestion Anaerobia, 19-23 October, Easter Island, Chile. See more

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Nadais H., Barbosa M., Almeida M. , Cunha A., Capela I., Arroja L. (2008) Intermittent operation of UASB reactors as a strategy to enhance anaerobic degradation of dairy wastewaters. Conference on Environment, Ecosystems and Development (EED 08), , Cairo, Egypt. See more

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Nadais H, Leitão JH, Cunha A, Almeida A, Capela I, Arroja L (2008) Intermittent Operation of UASB Reactors as a way to improve biomass adaptation to complex substrates. , outubro 2008, Ilha de Páscoa, Chile. See more

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Sousa SA, Ramos CG, Nadais H, Leitão JH (2008) Molecular characterization of microbial populations in sludge bed reactors for dairy industry wastewater treatment. XVIth National Congress of Biochemistry, outubro 2008, Açores, Portugal. See more

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Silva F., Bilé M., Rodrigues A., Nadais H., Arroja L., Capela I. (2007) Avaliação do Comportamento de um Digestor Anaeróbio para o Tratamento do Condensado Gerado numa Fábrica de Pasta de Papel. 9.ª Conferência Nacional do Ambiente, 18-20 Abril, Aveiro, Portugal. See more

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Nadais, H., Silva, F., Crespo, I., Arroja, L., Capela, I. (2007) Análise microbiológica da biomassa desenvolvida na operação intermitente de reactores UASB. 9ª Conferência Nacional do Ambiente, 18 - 20 de Abril, Aveiro, Portugal. See more

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Rodrigues, A., Flor, A., Nadais, H., Arroja, L., Capela, I. (2007) Co-digestão anaeróbia de resíduos de natureza orgânica em condições mesofílicas. 9ª Conferência Nacional do Ambiente, 18 - 20 Abril, Aveiro, Portugal. See more

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Nadais, H, Capela, I., Arroja, L., Duarte, A. (2005) Intermittent vs continuous operation of upflow anaerobic sludge bed reactors for dairy wastewater and related microbial changes. VIII Oficina e Seminário Latino-Americano de Digestão Anaeróbia, 2-5 de Outubro de 2005, Punta del Este, Uruguay. See more

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Nadais, H., Capela, I., Arroja, L., Duarte, A. (2002) Optimisation of working cycle in intermittent UASB reactors for dairy waste water treatment. VII Oficina e Seminário Latino-Americano de Digestão Anaeróbia, , Mérida, México. See more

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Nadais, H., Capela, I., Arroja, L., Duarte, A. (2001) Kinetic analysis of anaerobic degradation of dairy wastewater. 9th World Congress on Anaerobic Digestion 2001, , Antuérpia, Bélgica. See more

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Nadais, H., Capela, I., Arroja, L., Duarte, A. (2000) Effects of organic, hydraulic and fat shocks on the performance of UASB reactors with intermittent operation. VI Oficina e Seminário Latino-Americano de Digestão Anaeróbia, , Recife, Brasil. See more

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Nadais, H.,, Capela, I.,, Sayed, S.,, Arroja, L., Duarte, A. (1999) Comportamento de reactores UASB para o tratamento de efluentes de indústrias de lacticínios. 6ª Conferência Nacional sobre a Qualidade do Ambiente, , Lisboa, Portugal. See more

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Couras C., Grilo A., Leitão J.H., Capela I., Arroja L., Nadais H. Effects of operational shocks on performance and microbial populations of UASB reactors. 8th Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES2013), 22-27 setembro 2013, Dubrovnik, Croatia. See more

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F. Silva, H. Nadais, L. Arroja, L. Leal, I. Capela Pedido de Patente: "PROCESSO PARA CONVERSÃO DE RESÍDUOS, EFLUENTES E SUBPRODUTOS ORGÂNICOS EM MATERIAIS VALORIZÁVEIS". . See more

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