Programa de Pós-Graduação em Engenharia Sanitária e Ambiental (Mestrado Profissional) - PPGESA/ITEC

URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/16530

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Agora exibindo 1 - 7 de 7

Acesso aberto (Open Access)
Avaliação de parâmetros da qualidade do ar em um município amazônico do Estado do Pará
(Universidade Federal do Pará, 2025-02-21) ROSÁRIO, Abimael Silva do; MENDONÇA, Neyson Martins; http://lattes.cnpq.br/7534816053779593
This study evaluated the air quality in Barcarena, Pará, Brazil, throughout 2023, focusing on monitoring particulate matter concentrations (PM2.5, PM10, and TSP) at two points (P01 and P02) near an industrial complex with activities such as ore beneficiation and shipment, agricultural fertilizer storage and bagging, and grain shipment. These points were strategically chosen due to their location within the influence zone of various enterprises and the prevailing wind direction in the region. Samples were collected using High-Volume Samplers (HVS) over 24-hour periods, following guidelines from the Air Quality Technical Guide and CONAMA Resolution No. 491/2018. Collected data underwent descriptive and multivariate statistical analysis using Minitab Statistical software to determine PM2.5, PM10, and TSP concentrations and calculate the Air Quality Index (AQI). Results showed PM2.5, PM10, and TSP concentrations complied with the intermediate standards (PI-1) of CONAMA Resolution No. 491/2018 and the stricter limits of CONAMA Resolution No. 506/2024. The AQI for PM2.5 and PM10 was classified as "N1 - Good" throughout the study period, indicating no harmful effects on human health. Additionally, the study conducted a cost analysis of air quality monitoring campaigns, considering supplies, labor, and equipment, using ORÇAFASCIO software for budget development. This study contributes to air quality monitoring in areas with intense industrial activity, providing relevant data for environmental management and public health. Furthermore, the cost analysis offers valuable insights for planning and decision-making in similar projects.
Acesso aberto (Open Access)
Caracterização fisico-quimica de lixiviado bruto e tratado por osmose reversa de aterro sanitário no estado do Pará
(Universidade Federal do Pará, 2023-03-27) PEREIRA, Filipe Castro; MENDONÇA, Neyson Martins; http://lattes.cnpq.br/7534816053779593
The effluent generated inside landfills is called leachate. The characterization of the leachate generated in landfills is important to indicate its polluting potential and enable the application of techniques for its treatment. Thus, this work aims to characterize quantitatively and qualitatively the leachate from landfills located in the state of Pará. In addition, it aims to calculate the value of IPL for this leachate in order to know its potential contamination by comparing the results with those obtained by other authors. To this end, the work was divided into three phases, where the first was about the quantitative evaluation of the leachate, the second corresponded to the qualitative evaluation and the third is related to the calculation of the polluting potential of the leachate. The quantitative characterization had as a result a strong connection of the leachate input flow with rainfall, where it was noted an increase in flow when comparing the year 2018 with the year 2019, explained by the expansion of the landfill and the increase in the capacity of theLeachate Treatment Plant (LTP). The qualitative characterization showed a leachate with high organic matter contents and high fouling potential. The results of the third phase pointed out that the IPL methodology is not suitable for Brazilian leachates, being the Index of Deactivated Landfill (IDL) a more appropriate index for it. Thus, it is concluded that the leachate from Marituba landfill has a high complexity and should go through advanced treatment processes.
Acesso aberto (Open Access)
Elaboração de banco de dados das ETE’s de esgoto sanitário na região metropolitana de Belém para fins de planejamento e operação envolvendo fase líquida, sólida e gasosa
(Universidade Federal do Pará, 2022-12-29) ASSUNÇÃO, Maurilo André da Cunha; MENDONÇA, Neyson Martins; http://lattes.cnpq.br/7534816053779593
The present technical work consisted in the elaboration of a data bank of the wastewater treatment plant (WWTP's) of the metropolitan region of Belém (RMB) for planning and operation purposes involving the liquid, solid and gaseous phases, for the removal of carbonaceous matter. Such a study covers only the municipalities of Ananindeua, Belém and Marituba, which in 2019 have sanitary sewage systems (SES) of the centralized (SES-C33.35%) and decentralized (SES-D5.45%) types involving 23 WWTP's and whose experimental stages of this work are: 1) photographic record of the area occupied by the ETE's; 2) systematization of the basic information of the WWTP's; 3) quantification of the generation of solid by-product of the preliminary treatment; 4) balance of organic loads in UASB reactors; 5) quantification of production and sanitation of sludge in UASB reactors; 6) Potential quantification of electric power generation (EE) and methane emission from UASB reactors. Likewise, among the main results obtained in this work, it was obtained that the spatial distribution was 5.0 WWTP's (21.74%) in Ananindeua, 17 WWTP's (73.91%) in Belém, and 1.0 WWTP's (4, 35%) in Marituba, which is treating the project's average volume of 1,089 L/s (PE of 765,783 inhabitants) will generate in preliminary treatment about 840.17 kgSSG/d, 3548.2 kgareia/d and 29.53 kgscuma / day, and that when the UASB retors have an average efficiency of 65% and will operate with a total organic load of 4,193 kgCOD/d, they will produce 572.8 kgsludge/d with the potential to sanitize 3,062 kgbiosolids/d by alcaline stabilization, tending to this situation of treatment to the generation of available chemical energy and methane emission two UASB reactors, respectively, of 584.33 kWh/d of EQD and 387.67 TCO2/d through the normalized production of total methane of 59 Nm3 /d PNCH4 , being verified that the WWTP's of SESC in comparison with the WWTP's of SES-D are are the ones with the greatest possibility of using this energy as a source of heat.
Acesso aberto (Open Access)
Estudo de viabilidade econômica da implantação de leito de secagem para tratamento de efluentes sanitários gerados em uma mineradora no estado do Pará
(Universidade Federal do Pará, 2022-12-28) FERREIRA, Cleyton Eduardo Costa; MENDONÇA, Neyson Martins; http://lattes.cnpq.br/7534816053779593
Waste management is one of the main challenges of modern society, especially when it comes to finding more sustainable and economical alternatives for the treatment and disposal of these materials. In this context, biosolids, a byproduct generated from wastewater treatment, have been identified as a possible source of nutrients and organic matter for agriculture and other sectors, thus contributing to a more circular economy. Biosolids contain a large amount of nutrients that can be used to improve soil quality and increase agricultural productivity (OLIVEIRA et al., 2018). In addition, the use of biosolids as fertilizer can reduce the need for chemical inputs, contributing to the reduction of the environmental impact associated with final disposal (RIBEIRO et al., 2015). This study was conducted in a mining company in the state of Pará, Brazil, which has eight decentralized anaerobic wastewater treatment plants. The study aimed to define the treatment route for biosolids, as well as to evaluate the economic viability of implementing a drying bed for the production of biosolids to be applied in the restoration of degraded areas. It was found that 11,776 kg of total suspended solids (TSS) per year of sludge are generated, resulting in the design of a drying bed with three cells, each with 22 m², an operation cycle of 25 days, and a Surface Application Rate of 13.30 Kg TSS/m²xdia. For sanitization, CaO was chosen. The implementation cost of the drying bed was R$ 100,358.70, operational costs were R$ 2,059.62/month, and the solution via incineration was R$ 18,415.80/month. Based on the simple and discounted payback, the investment returns in approximately 7.14 and 7.19 months, respectively, and is part of the synergistic costs with the current sanitation management. The other indicators point to the investment as viable and capable of financial surplus. Therefore, the company will have financial and environmental gains with the implementation of the project.
Acesso aberto (Open Access)
Modelagem de Informação da Construção (BIM) para Proposição de Alternativas de Tratamento de lixiviado
(Universidade Federal do Pará, 2025-03-19) SILVA, Rafael Haruo Yoshida; MENDONÇA, Neyson Martins; http://lattes.cnpq.br/7534816053779593
The treatment of municipal solid waste leachate involves significant technical complexity due to its highly diverse composition, which is concentrated in organic, inorganic, and emerging contaminants, demanding a high level of engineering design. In this context, the use of facilitating tools such as Building Information Modelling (BIM) in the conception, execution, and management phases of these projects becomes essential for optimizing the time and resources required for each related stage. This is supported by Decree-Law No. 10,306 of April 2, 2020, and Law No. 14,133 of April 1, 2021. Given the need for adapting engineering projects to BIM and the environmentally adequate management of leachate generated in sanitary landfills, this dissertation aims to apply the BIM concept in the development of leachate treatment alternatives, exploring two treatment arrangements: alternative 01 for the low-load scenario and alternative 02 for the high-load scenario. The results obtained from the application of BIM in the design of the two leachate treatment alternatives were: (I) quantities of pipes, connections, hydraulic equipment, and treatment units; (II) verification of the number of inconsistencies in the two models; and (III) graphical pieces and images of the models. The quantity of alternative 02 exceeded alternative 01 by 100% in most of the items analyzed, except for the pipes, due to the complexity of alternative 02 and the scenario it pertains to (high load), thus requiring a greater allocation of resources. Regarding the inconsistencies observed in both models, a total of 64 inconsistencies between pipes, connections, and special valves were identified and corrected. As a result of the modeling, 70 graphical pieces, 10 quantity tables, and 8 rendered 3D images were generated. Regarding the evaluation of the leachate treatment alternatives 01 and 02 through the Simple Additive Weighting (SAW) method, indices of 0,94 and 0,74 was obtained, respectively. These values highlight the difference between the two scenarios (high load and low load) and the need for greater infrastructure and more significant resources in the expansion of the leachate treatment plant for alternative 02. By comparing the treated effluent discharge standards from CONAMA 430/2011 with international standards for treated leachate discharge, it was observed that Japan, Australia, France and United States of America were the countries most similar to Brazil, presenting similar regulated parameter values of 52.63%, 42.11%, 42.11% and 42.11 respectively. However, many of these parameters have different maximum allowable values when compared to those in Brazil, emphasizing the need for the requalification of current regulations and resolutions. Considering all the results obtained in this dissertation, the application of BIM in engineering projects proves to be a promising approach for optimizing time and resources in the conception, execution, and management of projects, although still in early stages in Brazil.
Acesso aberto (Open Access)
Plataforma de monitoramento da qualidade das águas residuárias no município de Belém/PA
(Universidade Federal do Pará, 2023-08-14) SARAIVA, Danielle Pinto; MENDONÇA, Neyson Martins; http://lattes.cnpq.br/7534816053779593
Large cities, such as Belém in Pará, require effective control for the monitoring of wastewater, as it can compromise the quality of urban water. A significant portion of these wastewaters is discharged into surface water bodies and could potentially be reused by riverside communities. In this context, utilizing the principles of Industry 4.0 to promote sustainability, cost reduction, and social responsibility, this study aimed to develop the E-Quality platform. This platform serves as a tool for controlling analytical results according to predefined parameters, with the purpose of enhancing environmental monitoring. The digital platform collects existing data, filters and generates graphs for optimized evaluation, examines temporal series, and produces reports on pollutant loads. These reports include data, graphs, and text editing for presentation in printed documents. The study employed sampling data from the year 2015 collected at the Vila da Barca Treatment Plant, provided by UFPA - Federal University of the State of Pará. This real data was used to assess the platform's application, analytically verifying its results for efficiency in removal by the treatment plant, emission values of pollutant loads per ton discharged into the receiving water body throughout the year, and comparisons between Total Nitrogen and Ammonia, BOD and COD, BOD and Phosphorus. Following the evaluation of the stored historical data, the platform's quality filter was utilized. This feature identifies results that deviate from the CONAMA 430 standard and those that do not meet requirements, such as sample storage time or values that exceed predefined limits, as seen in the case of Total Nitrogen and Ammonia data input. From the existing results, it was evident that the platform facilitates data monitoring, control, and management, thereby reducing costs and enhancing data security. As everything generated and added to the platform is stored in the cloud, it provides control over gross errors that could originate from users or collection and analysis procedures. The realtime evaluation of all results, as exemplified by the analysis of data from the Vila da Barca Treatment Plant in Belém, demonstrates the platform's effectiveness in wastewater monitoring.
Acesso aberto (Open Access)
Plataforma de monitoramento da qualidade de águas superficiais: estudo de caso dos portos de Belém e Barcarena/PA
(Universidade Federal do Pará, 2023-08-15) CORRÊA, Ítalo Machado; MENDONÇA, Neyson Martins; http://lattes.cnpq.br/7534816053779593
Water is the essential input for life and various human activities. With the advent of the Industrial Revolution, it brought numerous benefits to humanity; however, it also incurred costs, such as water pollution. One of the tools to curb water contamination is environmental management based on water quality monitoring, guided by laws and environmental indicators. To control and track data for water quality monitoring, the principles of Industry 4.0, considered the fourth industrial revolution, have been applied in recent years. The emergence of these technologies dedicated to water monitoring brings benefits to managers and decision-makers, aiding in the assessment of water resource quality. This allows for a more efficient and reliable approach to collected information. In light of this, this study developed a digital platform for monitoring and diagnosing data related to the environmental control of surface waters. The goal was to address the vast amount of data derived from large cities like Belém and Barcarena. To evaluate the functionality of the tool, areas synonymous with economic and social growth -ports - were chosen in these cities. The platform was created using JavaScript for the web system, and cloud storage utilized the Azure backend and Netlify frontend. The E-quality platform aims to fill the gap in information storage, providing monitoring results in an easy and dynamic manner. By evaluating the behavior of results over months and years through historical data, calculating environmental indices such as IQA and IET from the existing database, the platform assesses and filters gross errors, such as date errors, quantification limits, and assay expiration dates. It also compares the results with relevant legislation.

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