Nuno F.F. Moreira

Universidade do Porto

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Adrián M.T. Silva

Universidade do Porto

Ana R. Ribeiro

Universidade do Porto

Olga C. Nunes

Universidade do Porto

M.F.R. Pereira

Universidade do Porto

Joaquim L. Faria

Universidade do Porto

Célia M. Manaia

Universidade Católica Portuguesa

Filipe B. Teixeira

Universidade do Porto

Sérgio Castro‐Silva

Advanced Environmental Technologies (Portugal)

Luisa M. Pastrana‐Martínez

Universidad de Granada

Manuel Ricardo

Universidade do Porto

Cooperative Institutions

Universidade do Porto

INESC TEC

Polytechnic Institute of Porto

Institute for Systems Engineering and Computers

Universidade Católica Portuguesa

University of Minho

Rede de Química e Tecnologia

Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento

University of Coimbra

Polytechnic Institute of Bragança

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Ozone-based water treatment (O3, O3/UV, O3/H2O2) for removal of organic micropollutants, bacteria inactivation and regrowth prevention

Journal of environmental chemical engineering (2021)

Ana M. Gorito Joana F.J.R. Pesqueira Nuno F.F. Moreira Ana R. Ribeiro M.F.R. Pereira

Portable water purification

Hydraulic retention time

10.1016/j.jece.2021.105315

Cite

Citations (89)

Application of magnetic nanoparticles for water purification

Environmental Advances (2020)

Mariana Pinto P.S.F. Ramalho Nuno F.F. Moreira Alexandra G. Gonçalves Olga C. Nunes

Water is one of the main sources of human pathogenic microorganisms in developing countries. Therefore, new low-cost water treatment technologies are required to prevent public health problems. The main goal of this work was to develop a water purification technology using magnetic nanoparticles, to be applied in a water outlet point where the contact time between the two phases is minimal. For that, six different nanomaterials were synthesised based on iron oxide (FeO): FeO, mixed oxides of Fe with Mn, Co or Cu, a composite of FeO with activated carbon, and FeO subsequently coated with carbon by chemical vapour deposition (CVD). Different techniques were used to characterise these nanomaterials and their ability to remove E. coli (a Gram-negative bacteria) and also S. aureus (a Gram-positive bacteria) cells from a suspension was assessed. CuFeO, FeO, MnFeO and FeO/AC composite MNPs showed high removal efficiencies of Escherichia coli (Gram-negative). For the nanoparticles with higher removal efficiencies in the first tests (FeO and CuFeO), 50 mg mL−1 was the optimal concentration of particles and 1 min of contact time it was enough to obtain high removal efficiencies. The removal efficiency of S. aureus was higher than that of E. coli when FeO particles were used. In contrast, the removal efficiency of E. coli was higher than that of S. aureus for CuFeO particles. For both particles, the removal efficiency of microorganisms for the well water sample was lower when compared with the bacteria suspensions, being 64.1 % for FeO and 91.8 % for CuFeO. The reuse tests showed that these particles could be re-used several times without losing efficiency in bacteria removal. The MNPs used are simple and low-cost and show promising results for the elimination of both types of bacteria (gram-positive and gram-negative) demonstrating that this technology is a promising alternative to the conventionally used processes showing an easy, efficient, and inexpensive method for treating water for human consumption.

Nanomaterials

Suspension

Portable water purification

Iron oxide nanoparticles

Carbon fibers

10.1016/j.envadv.2020.100010

Cite

Citations (47)

Data Muling Approach for Long-Range Broadband Underwater Communications

Filipe B. Teixeira Nuno F.F. Moreira Rui Campos Manuel Ricardo

Autonomous Underwater Vehicles (AUVs) are widely used as a cost-effective mean to carry out underwater missions. During long-term missions, AUVs may collect large amounts of data that usually needs to be sent to shore. An AUV may have to travel several kilometers before reaching an area of interest near the seafloor, thus surfacing is unpractical for most cases. Long-range underwater communications rely mostly on acoustic communications, which are characterized by very low bitrates, thus making the transfer of large amounts of data too slow. GROW is a novel solution for long-range, high bitrate underwater wireless communications between a survey unit (e.g., deep sea lander, AUV) and a central station at surface. GROW combines AUVs as data mules, short-range high bitrate wireless RF or optical communications, and long-range low bitrate acoustic communications for control.In this paper we present the Underwater Data Muling Protocol (UDMP), a communications protocol that enables the control and the scheduling of the Data Mule Units within the GROW framework. Experimental results obtained using an underwater testbed show that the use of UDMP and data mules can outperform acoustic communications, achieving equivalent throughput up to 150 times higher within the typical range of operation of the latter.

Underwater acoustic communication

Testbed

10.1109/wimob.2019.8923472

Cite

Citations (9)

Production of microparticles of molinate degrading biocatalysts using the spray drying technique

Chemosphere (2016)

Ana R. Lopes Vera M. Sousa Berta N. Estevinho José P. Leite Nuno F.F. Moreira

Bioaugmentation

Thiocarbamates

Microcosm

Calcium alginate

10.1016/j.chemosphere.2016.07.006

Cite

Citations (9)

Impact of water matrix on the removal of micropollutants by advanced oxidation technologies

Chemical Engineering Journal (2019)

Ana R. Ribeiro Nuno F.F. Moreira Gianluca Li Puma Adrián M.T. Silva

Reactive nitrogen species

Bicarbonate

Inorganic ions

Hydroxyl radical

10.1016/j.cej.2019.01.080

Cite

Citations (444)

A Novel Simulation Platform for Underwater Data Muling Communications Using Autonomous Underwater Vehicles

Computers (2021)

Filipe B. Teixeira Bruno M. Ferreira Nuno F.F. Moreira Nuno Abreu Murillo Villa

Autonomous Underwater Vehicles (AUVs) are seen as a safe and cost-effective platforms for performing a myriad of underwater missions. These vehicles are equipped with multiple sensors which, combined with their long endurance, can produce large amounts of data, especially when used for video capturing. These data need to be transferred to the surface to be processed and analyzed. When considering deep sea operations, where surfacing before the end of the mission may be unpractical, the communication is limited to low bitrate acoustic communications, which make unfeasible the timely transmission of large amounts of data unfeasible. The usage of AUVs as data mules is an alternative communications solution. Data mules can be used to establish a broadband data link by combining short-range, high bitrate communications (e.g., RF and wireless optical) with a Delay Tolerant Network approach. This paper presents an enhanced version of UDMSim, a novel simulation platform for data muling communications. UDMSim is built upon a new realistic AUV Motion and Localization (AML) simulator and Network Simulator 3 (ns-3). It can simulate the position of the data mules, including localization errors, realistic position control adjustments, the received signal, the realistic throughput adjustments, and connection losses due to the fast SNR change observed underwater. The enhanced version includes a more realistic AML simulator and the antenna radiation patterns to help evaluating the design and relative placement of underwater antennas. The results obtained using UDMSim show a good match with the experimental results achieved using an underwater testbed. UDMSim is made available to the community to support easy and faster evaluation of underwater data muling oriented communications solutions and to enable offline replication of real world experiments.

Testbed

Underwater acoustic communication

10.3390/computers10100119

Cite

Citations (5)

Integrated catalytic processes for the treatment of organic pollutants and inactivation of microorganisms

Nuno F.F. Moreira

Source

Cite

Citations (0)

Fast mineralization and detoxification of amoxicillin and diclofenac by photocatalytic ozonation and application to an urban wastewater

Water Research (2015)

Nuno F.F. Moreira Carla A. Orge Ana R. Ribeiro Joaquim L. Faria Olga C. Nunes

Detoxification

Diclofenac

10.1016/j.watres.2015.08.059

Cite

Citations (175)

Overgrowth control of potentially hazardous bacteria during storage of ozone treated wastewater through natural competition

Water Research (2021)

Sara Ribeirinho-Soares Nuno F.F. Moreira Cátia A. L. Graça M.F.R. Pereira Adrián M.T. Silva

10.1016/j.watres.2021.117932

Cite

Citations (23)

@Sensor - Mobile application to monitor a WSN

Iberian Conference on Information Systems and Technologies (2011)

Nuno F.F. Moreira Marco Venda Catarina Silva Luís Marcelino Ántónio Pereira

Due to the growth of potential of Wireless Sensor Networks (WSN), now becomes possible to use this technology in various new generation services such as monitor environment characteristics like temperature, humidity, among others. WSNs are emerging as a new paradigm, gathering information in a collaborative way, where independent sensor nodes collect and share information. In the last few years ubiquitous computing popularity has grown considerably, ambient intelligence and home automation systems are having a good public acceptance. In this context, we developed a mobile application to remotely monitor one WSN, installed at a customer's home. The application's main goal is to interact with a WSN, allowing a user to consult sensor states and receive sensor alerts. Sensor alerts will be received, in case a sensor's threshold value, exceeds the limit. Therefore the user will be notified whenever there are changes in the WSN. Apart the WSN, a base station is also needed for keeping the state of the WSN, store sensor's information and enable communication between the WSN and the developed mobile application via Web Services. This way and having a network connection, the user can check the state of any WSN component, anytime, anywhere. The Android platform was chosen to implement our application, since it is having a great acceptance and continued growth in the mobile market.

Sensor web

Popularity

Source

Cite

Citations (20)