Helena Nadais

1.5k total citations
37 papers, 1.2k citations indexed

About

Helena Nadais is a scholar working on Pollution, Water Science and Technology and Building and Construction. According to data from OpenAlex, Helena Nadais has authored 37 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Pollution, 13 papers in Water Science and Technology and 11 papers in Building and Construction. Recurrent topics in Helena Nadais's work include Anaerobic Digestion and Biogas Production (11 papers), Wastewater Treatment and Nitrogen Removal (9 papers) and Pharmaceutical and Antibiotic Environmental Impacts (8 papers). Helena Nadais is often cited by papers focused on Anaerobic Digestion and Biogas Production (11 papers), Wastewater Treatment and Nitrogen Removal (9 papers) and Pharmaceutical and Antibiotic Environmental Impacts (8 papers). Helena Nadais collaborates with scholars based in Portugal, Spain and Denmark. Helena Nadais's co-authors include Luís Arroja, Isabel Capela, M. Amparo F. Faustino, Ângela Cunha, Adelaide Almeida, Eliana Alves, Maria G. P. M. S. Neves, Valdemar I. Esteves, Flávio C. Silva and Marta Otero and has published in prestigious journals such as The Science of The Total Environment, Water Research and Bioresource Technology.

In The Last Decade

Helena Nadais

37 papers receiving 1.1k citations

Peers

Countries citing papers authored by Helena Nadais

Since Specialization

Citations

This map shows the geographic impact of Helena Nadais's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Helena Nadais with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helena Nadais more than expected).

Fields of papers citing papers by Helena Nadais

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helena Nadais. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Helena Nadais. The network helps show where Helena Nadais may publish in the future.

Co-authorship network of co-authors of Helena Nadais

This figure shows the co-authorship network connecting the top 25 collaborators of Helena Nadais. A scholar is included among the top collaborators of Helena Nadais based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Helena Nadais. Helena Nadais is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Empowering Non-Academic Staff for the Implementation of Sustainability in Higher Education Institutions 2023 ·Sustainability ·Paula Bacelar Nicolau, (unknown), Sandra Caeiro, Sara Moreno Pires, (unknown), (unknown), Marta Ferreira Dias, Ana Paula Gomes, Myriam Lopes, Helena Nadais, Georgios Malandrakis	3
2	A review of integrated advanced oxidation processes and biological processes for organic pollutant removal 2021 ·Chemical Engineering Communications ·P.V. Nidheesh, (unknown), Ansaf V. Karim, Helena Nadais	90
3	Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters 2020 ·The Science of The Total Environment ·(unknown), Diana L.D. Lima, Jorge H. Leitão, Valdemar I. Esteves, Helena Nadais	6
4	Photodegradation of sulfadiazine in different aquatic environments – Evaluation of influencing factors 2020 ·Environmental Research ·(unknown), Carla Patrícia Silva, Helena Nadais, Marta Otero, Valdemar I. Esteves, Diana L.D. Lima	37
5	Oxolinic acid in aquaculture waters: Can natural attenuation through photodegradation decrease its concentration? 2020 ·The Science of The Total Environment ·(unknown), Carla Patrícia Silva, Helena Nadais, Marta Otero, Valdemar I. Esteves, Diana L.D. Lima	23
6	Fixed-bed adsorption of Tricaine Methanesulfonate onto pyrolysed paper mill sludge 2017 ·Aquacultural Engineering ·Catarina I.A. Ferreira, Vânia Calisto, Marta Otero, Helena Nadais, Valdemar I. Esteves	17
7	Removal of tricaine methanesulfonate from aquaculture wastewater by adsorption onto pyrolysed paper mill sludge 2016 ·Chemosphere ·Catarina I.A. Ferreira, Vânia Calisto, Marta Otero, Helena Nadais, Valdemar I. Esteves	22
8	Comparative valorisation of agricultural and industrial biowastes by combustion and pyrolysis 2016 ·Bioresource Technology ·Catarina I.A. Ferreira, Vânia Calisto, Eduardo M. Cuerda‐Correa, Marta Otero, Helena Nadais, Valdemar I. Esteves	39
9	Anaerobic degradation of dairy wastewater in intermittent UASB reactors: influence of effluent recirculation 2015 ·Environmental Technology ·(unknown), (unknown), Tânia Gameiro, (unknown), Augusto Silva, Isabel Capela, Luís Arroja, Helena Nadais	13
10	Nitrogen and phosphorus discharge of animal origin in the Baixo Vouga: A spatial data analysis 2014 ·The Science of The Total Environment ·(unknown), (unknown), Helena Nadais	12
11	Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids 2013 ·Chemical and Biochemical Engineering Quarterly ·Flávio C. Silva, Luísa S. Serafim, Helena Nadais, Luís Arroja, Isabel Capela	61
12	Application of Qual2Kw model as a tool for water quality management: Cértima River as a case study 2011 ·Environmental Monitoring and Assessment ·Bruna R. F. Oliveira, (unknown), Paula Quinteiro, Helena Nadais, Luís Arroja	28
13	Hydrodynamic behaviour of a full‐scale anaerobic contact reactor using residence time distribution technique 2009 ·Journal of Chemical Technology & Biotechnology ·Isabel Capela, (unknown), Flávio C. Silva, Helena Nadais, (unknown), Luís Arroja	36
14	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 2009 ·Applied Microbiology and Biotechnology ·Christian G. Ramos, (unknown), Sílvia A. Sousa, (unknown), Helena Nadais, Jorge H. Leitão	8
15	Molasses as an external carbon source for anaerobic treatment of sulphite evaporator condensate 2008 ·Bioresource Technology ·Flávio C. Silva, Helena Nadais, (unknown), Luís Arroja, Isabel Capela	7
16	Modelling of anaerobic treatment of evaporator condensate (EC) from a sulphite pulp mill using the IWA anaerobic digestion model no. 1 (ADM1) 2008 ·Chemical Engineering Journal ·Flávio C. Silva, Helena Nadais, (unknown), Luís Arroja, Isabel Capela	12
17	Intermittent vs continuous operation of upflow anaerobic sludge bed reactors for dairy wastewater and related microbial changes 2006 ·Water Science & Technology ·Helena Nadais, Isabel Capela, Luís Arroja	14
18	Optimum cycle time for intermittent UASB reactors treating dairy wastewater 2005 ·Water Research ·Helena Nadais, Isabel Capela, Luís Arroja, Armando C. Duarte	30
19	Biosorption of Milk Substrates onto Anaerobic Flocculent and Granular Sludge 2003 ·Biotechnology Progress ·Helena Nadais, Isabel Capela, Luís Arroja, Armando C. Duarte	17
20	Vapour - liquid equilibria of α-pinene + limonene at reduced pressures 1993 ·Fluid Phase Equilibria ·Helena Nadais, M. Gabriela Bernardo‐Gil	20

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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