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ÍTALO MACHADO CORRÊA
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Plataforma de monitoramento da qualidade de águas superficiais: estudo de caso dos portos de Belém e Barcarena/PA.
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Data: 15/08/2023
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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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DANIELLE PINTO SARAIVA
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Plataforma de monitoramento da qualidade de águas residuárias no município de Belém/PA
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Data: 14/08/2023
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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 real-time 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.
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JOÃO BATISTA MARCELO DE LIMA
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PROPOSAL FOR ENVIRONMENTAL MONITORING OF THE UTINGA STATE PARK: A TOOL FOR IMPROVING THE SERVICES PROVIDED TO THE POPULATION OF THE METROPOLITAN REGION OF BELÉM
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Data: 27/04/2023
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The Metropolitan Region of Belém (RMB) has a very strong dependency relationship with the Utinga State Park (PEUt), whether for the provision of ecosystem services and the assignment of an area for the practice of sports and leisure; or by the water supply made available to a portion of the population. Based on this, a study was carried out to verify the recommendations regarding the installation of a monitoring system for the environmental quality of the PEUt. This stage included the analysis of Brazilian hydro-environmental laws, norms, plans and programs that directly or indirectly presented such recommendations. Next, a survey of the area's vulnerability to the advance of urbanization in the RMB was carried out. In this investigation, the threats imposed on the Park and its environmental elements became evident. In order to reveal details about the advantages of an environmental monitoring system, a study of qualitative and quantitative monitoring cases in protected areas in Brazil and abroad was carried out. The results showed benefits for the entire production chain associated with the monitored area, with gains also for the bodies and managers, for the political, academic and scientific classes, as well as for the general population. From all this survey carried out, the hypothetical-deductive method was used to ratify the objective of this work, which boils down to proposing a structure for monitoring the quality of water and soil in the Park, which was called "Monitoring System of the Utinga State Park (SISPEUt)”. Its architecture was designed according to the policies and guidelines of ePING (Electronic Government Interoperability Standards), which recommends the use of Public Software and/or Free Software in the design of monitoring systems, such as SISPEUt. The parameters to be monitored were defined according to norms and hydro-environmental programs in force or in progress in Brazil, with the contribution of systems that monitor environmental variables in the national territory. As for the location of the measurement and sample collection points, these were determined based on the Park's physiography and the threats imposed on the Conservation Unit. As a final product of this work, an Instruction Guide is presented with the objective of offering a proposal for the conception of SISPEUt, which portrays an alternative for the qualitative investigation of the waters and soil of the Park, in favor of the improvement of the services provided to the population, current and future, which depend, consubstantially, on the full knowledge and preservation of the environmental resources of the protected area.
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GERSON VALDEZ DANIEL
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Improving the bio-oil quality of residual biomass pyrolysis by chemical activation: Effect of alkalis and acid pre-treatment
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Data: 28/02/2023
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This work investigated the effect of temperature and acid or alkalis chemical activation by pyrolysis of Açaí seeds (Euterpe Oleraceae, Mart.) on the yield of bio-oil, hydrocarbon content of bio-oil, and chemical composition of aqueous phase. The experiments were carried out at 350, 400, and 450 °C and 1.0 atmosphere, KOH and HCl activation, in laboratory scale. The acidity of bio-oils and aqueous phases determined by AOCS methods, while the chemical composition of bio-oils and aqueous phase by GC-MS and FT-IR. The bio-char characterized by XRD. For the activation with KOH, the XRD analysis identified the presence of Kalicinite (KHCO3), the dominant crystalline phase in bio-char, while an amorphous phase was identified in bio-chars for the activation with HCl. The yield of bio-oil, for the pyrolysis of Açaí seeds activated with KOH, varied between 3.19 and 6.79 (wt.%), showing a smooth exponential increase with temperature. The acidity of bio-oil varied between 12.3 and 257.6 mgKOH/g, decreasing exponentially with temperature, while the acidity of aqueous phase lies between 17.9 and 118.9 mgKOH/g, showing and exponential decay behavior with temperature, demonstrating that higher temperatures favor not only the yield of bio-oil but also bio-oils with lower acidity. For the pyrolysis experiments activated with HCl, the yield of bio-oil varied between 2.13 and 3.37 (wt.%), decreasing linearly with temperature, while that of gas phase varied between 17.91 and 37.94 (wt.%), increasing linearly with temperature. The acidity of bio-oil varied between 127.1 and 218.5 mgKOH/g, increasing with temperature, showing that higher temperatures did not favor the yield of bio-oil and bio-oils acidity. For the chemical activation with KOH, the FT-IR analysis of bio-oils identified the presence of chemical groups characteristics of hydrocarbons and oxygenates, while that of aqueous phase only groups characteristics of oxygenates. For the chemical activation with HCl, the FT-IR analysis of bio-oil and aqueous phases identified only the presence of groups characteristics of oxygenates. For the experiments with KOH activation, the GC-MS of bio-oil identified the presence of hydrocarbons (alkanes, alkenes, cycloalkanes, cycloalkenes, and aromatics) and oxygenates (carboxylic acids, phenols, ketones, and esters). The concentration of hydrocarbons varied between 10.19 to 25.71 (area.%), increasing with temperature, while that of oxygenates from 52.69 to 72.15 (area.%), decreasing with temperature. For the experiments with HCl activation, the GC-MS of bio-oil identified only the presence of oxygenates. Finally, it can be concluded that chemical activation of Açaí seeds with KOH favors the not only the yield of bio-oil but also the content of hydrocarbons while activation with HCl produced bio-oils with only oxygen compounds.
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ERIKA JOANA NABICA BORGES
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With the expansion and population growth of the municipality of Belém/PA, areas with little or almost no sanitation infrastructure were developed, since as it grew, it circumvented water accidents instead of sanitizing them, resulting in large investments in works of macrodrainage currently, in peripheral areas. This work sought to evaluate the degree of pollution caused by polluting loads of nutrients in the 03 (three) macrodrainage channels, being Quintino Bocaiúva, Timbiras and Caripunas, belonging to BHEN, whose contribution flows into the main source of public supply in the municipality. For this, the work carried out the calculation of polluting loads of nutrients, analyzing NTK, ammoniacal-N, organic-N, Nitrate (NO3) and Total Phosphorus, in 5 qualitative campaigns, in addition to having carried out a bathymetric survey in 3 campaigns, considering the rainy and less rainy period. Initially, the flow results were presented, which after simulation it was verified that the highest flow is related to the Quintino channel, which was to be expected due to its greater contribution area. The correlation between nutrients and physical variables of temperature, OD and pH of the water was also verified. Thus, it was found that despite being small in most cases, there is a correlation between those mentioned. In addition, the concentration of the parameters was analyzed separately, based on the results of the laboratory analysis, in which the forms of nitrogen and phosphorus exceeded the limits recommended in the legislation, also expected due to the high contribution of the subbasins, in addition to there being no treatment efficient domestic sewage system in this area. Finally, the polluting load values were analyzed based on the relationship between flow and concentration, resulting in high values of load released into the receiving body, characterizing a scenario of extreme water degradation. Still, with this relationship it was possible to estimate the population that would be contributing to this scenario, whose numerical values were also quite high and not consistent with the reality in the area. Therefore, through these results, it is possible to affirm that they may be harmful to the waters of the canals, where a significant degradation of the quality of the waters is expected, which will follow to the Guamá river, and consequently, will reach the population that directly or indirectly have contact with these bodies of water.
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Data: 28/02/2023
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Domestic effluents. Urban canals. Nutrient load.
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FLAVIO PINHEIRO VALOIS
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This work investigates the effect temperature and molarity by pyrolysis of Açaí seeds (Euterpe Oleraceae, Mart.) activated with KOH on the yield of bio-oil, hydrocarbon content of bio-oil, and chemical composition of aqueous phase. The experiments were carried out at 350, 400, and 450 °C and 1.0 atmosphere, with 2.0 M KOH, and at 450 °C and 1.0 atmosphere, with 0.5 M, 1.0 M and 2.0 M KOH, in laboratory scale. The composition of bio-oils and aqueous phase determined by GC-MS, while the acid value, a physico-chemical property of fundamental importance in bio-fuels, of bio-oils and aqueous phases by AOCS methods. The solid phase (biochar) characterized by X-ray diffraction (XRD). The diffractograms identified the presence of Kalicinite (KHCO3) in biochar, and those higher temperatures favor the formation peaks of Kalicinite (KHCO3). The pyrolysis of Açaí seeds activated with KOH show bio-oil yields from 3.19 to 6.79 (wt.%), aqueous phase yields between 20.34 and 25.57 (wt.%), solid phase yields (coke) between 33.40 and 43.37 (wt.%), and gas yields from 31.85 to 34.45 (wt.%). The yield of bio-oil shows a smooth exponential increase with temperature. The acidity of bio-oil varied between 12.3 and 257.6 mgKOH/g, decreasing exponentially with temperature, while that of aqueous phase between 17.9 and 118.9 mgKOH/g, showing and exponential decay behavior with temperature, demonstrating that higher temperatures favor not only the yield of bio-oil but also bio-oils with lower acidity. For the experiments with KOH activation, the GC-MS of bio-oil identified the presence of hydrocarbons (alkanes, alkenes, cycloalkanes, cy-cloalkenes, and aromatics) and oxygenates (carboxylic acids, phenols, ketones, and esters). The concentration of hydrocarbons varied between 10.19 to 25.71 (area.%), increasing with temperature, while that of oxygenates from 52.69 to 72.15 (area.%), decreasing with temperature. For the experiments with constant temperature, the concentrations of hydrocarbons in bio-oil increase exponentially with molarity, while those of oxygenates decrease exponentially, showing that higher molarities favor the formation of hydrocar-bons in bio-oil. Finally, it can be concluded that chemical activation of Açaí seeds with KOH favors the not only the yield of bio-oil but also the content of hydrocarbons.
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Data: 27/02/2023
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Açaí seeds; Chemical activation; Pyrolysis; Acidity, Liquid hydrocarbons.
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RAYMUNDO DA COSTA FRANÇA NETO
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ORIENTAÇOES DE MESTRADO |
Tema: Estudo Gravimétrico de Resíduos dos Grandes Geradores Supermercadista; Atacadista, Hotelaria e Restaurantes na Região Metropolitana De Belém – PA |
Linha de Pesquisa: Planejamento, Monitoramento, Operação e Controle de Sistema de Saneamento |
Tipo de PPT: Produto bibliográfico |
Data da defesa: 27/02/2023 |
Membro da banca-01: Prof.Dr. Neyson Martins Mendonça- (PPGESA/UFPA) |
Membro da banca-02: Prf.Dr.Aurélio Pessoa Picanço(UFT/TO) |
Local de realização do exame de qualificação: Sala Nº S10 de multiuso do PPGESA/Plataforma Google Meet (https://meet.google.com/ajx-duus-gry) |
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Data: 27/02/2023
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O presente trabalho versou sobre a realização da caracterização gravimétrica de resíduo sólido proveniente de grandes geradores (supermercadista; atacadista, hotelaria e restaurantes) da Região Metropolitana de Belém – Pará (RMB), compreendendo os municípios de Belém, Ananindeua e Marituba. Assim, para a realização do trabalho em questão foram desenvolvidas as seguintes etapas experimentais: i) elaboração do referencial teórico e o planejamento de ensaios de caracterização gravimétrica, ii) execução de campanhas gravimétricas para obtenção das frações de polietileno tereftalato (PET); plástico mole e duro (PMD), papel e papelão (PP), madeira (M) hortifruti (HF) e matéria orgânica digerível (MOD) envolvendo 06 roteiros de coleta distintos e iii) tratamento dos dados (estatística descritiva, analítica e elaboração de gráficos de torta). Os resultados médios da caracterização gravimétrica para N = 256 amostras, permitiram se obter os seguintes percentuais por categoria de materiais: 1,37±1,23 % de PET; 7,09±5,49 % de PMD, 7,11±4,37 % de PP, 3,56±5,23 % de M, 32,70±9,67 % de HF e 48,22±11,58 % de MOD, e cuja realização do Teste de Kruskall-Wallis teve valores de p (0,285) > (5,0%) indicando assim que as categorias de PMD, HF e MOD apresentam a mesma a composição gravimétrica independente do roteiro de coleta e cujo gerenciamento destes resíduos em termos de reciclagem do potencial econômico para fabricação de novos produtos plásticos ou mesmo o aproveitamento do conteúdo orgânico na produção de condicionador de solou e/ou biofertilizante encontra-se incipiente na RMB. Enquanto PET, PP e M mostraram situação oposta para tais frações de RSGG p (0,03 < =5,0%), ou seja, tiveram diferenças significativas na composição gravimétrica, ocasionada, sobretudo, pela comercialização da reciclagem de matérias secos e da eficácia de separação interna sobre esses matérias desempenhada pelos empreendimentos de GG-RSU da RMB.
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MOISES MARCAL GONCALVES
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Heavy rainfall equation analysis and selection applied to hydrological studies
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Data: 16/02/2023
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The aim of this study is to perform the analysis, comparison and selection of equations of, Intensity, Duration and Frequency, constructed from data series of a particular enterprise and rainfall stations available in official databases of the National Agency of Water and Basic Sanitation (ANA) and the National Institute of Meteorology (INMET). The purpose of these equation is to be applied for use in hydrological studies, hydraulic-hydrological sizing for the municipality of Paragominas-PA. Based on the data, we started the analysis of data consistency, where the available data proved to be consistent. Then the homogeneity of the data was tested, the data obtained were homogeneous, with the exception of the data from the station HIDROWEB 347000 station (PARAGOMINAS). Next, with the assistance of the SEAF software, the recommended probabilistic distribution for each monitoring station was evaluated, after the analysis, the only distribution recommended for all databases was the Gumbel distribution. furthermore, the disaggregation coefficients were determined from the resgisters of the pluviograph RA03 (Enterprise) and the pluviograph A212 (INMET) with 3 and 11 years of historical record, the registers were grouped in an interval of 30 minutes, 1 hour, 2 hours, 6 hours, 12 hours, 18 hours and 24 hours, after this process, the disaggregation coefficients used in this study were established. Lastly, in possession of the built IDF equations, comparisons were made to identify which equation is recommended for Paragominas-PA. After carrying out all the statistical comparisons, it was observed that Equation IDF P06 is the most recommended for determining the intensity of rainfall in the municipality of Paragominas-PA. In general, the recommended equations were generated from data from ANA stations with codes 348001 and 347002 and equation P06 (data enterprise), however, for rainy events lasting up to 30 minutes and with a recurrence time of up to 500 years, equation P06 is recommended, for durations longer than 30 minutes the other equations are recommended.
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SALIM RODRIGUES DA SILVA
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ORIENTAÇOES DE MESTRADO |
Mestrando(a) Eng(a) Salim Rodrigues da Silva (202076870008) - Orientador(a): Prof(a).Dr(a). Giovanni Chaves Penner |
Tema: Recarga do aquífero livre na Universidade Federal do Pará, Campus Belém |
Linha de Pesquisa: Planejamento, Monitoramento, Operação e Controle de Sistemas de Saneamento |
Tipo de PTT: Produto bibliográfico |
Data da Defesa da Dissertação: 06/02/2023 |
Membro da banca-01: Prof. Dr.Murilo Cesar Lucas (UTFPR) |
Membro da banca-02: MSc.Homero Reis de Melo Junior (SGB-CPRM) |
Membro da banca-03: Prof. Dr. Manoel José dos Santos Sena (PPGESA) |
Local de realização da Defesa da Dissertação: Auditório Laboratório de Engenharia Sanitária e Ambiental (LAESA)/Google Meet |
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Data: 06/02/2023
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No Brasil, o consumo anual de água está representado por 7 setores: abastecimento urbano, abastecimento rural, indústria, mineração, termelétrica, animal e irrigação, os quais somam 61,46 bilhões de m³/ano, dentre esses setores, o abastecimento urbano é o segundo com maior demanda (25%). Em Belém, a captação de água subterrânea para alimentação do Sistema de Abastecimento de Água vem aumentando, apesar disso a baixa qualidade na sua distribuição, acaba estimulando a capitação de água sem nenhum critério, contribuindo para a exploração excessiva de aquíferos. No campo da pesquisa científica, o quantitativo de trabalhos para estimativa da recarga subterrânea é incipiente no Estado do Pará, tornando premente o desenvolvimento de novas pesquisas. Para tanto este trabalho tem como objetivo estimar a recarga do aquífero livre de porosidade primária localizado em depósito aluvionar, subjacente a Universidade Federal do Pará (UFPA), campus Belém. A estimativa de recarga foi realizada através do método Water-Table Fluctuation (WTF) em 8 poços de monitoramento distribuídos nos setores denominados saúde e profissional da Universidade Federal do Pará. A faixa de variação do nível de água na área de estudo apresentou-se entre 0,89 e 2,26 m. Um rendimento específico (Sy) foi determinado através de um teste de bombeamento, o qual forneceu dados que foram analisados no software AQTESOLV Demo utilizando a solução analítica de Tartakovsky-Neuman. O resultado de Sy do teste de bombeamento foi de 0,1 (10%). A recarga estimada para o monitoramento discreto ficou entre 101,40 mm e 371,60 mm (ano de 2020), entre 75,50 mm e 552,60 mm (ano de 2021) e entre 19,50 mm e 140,50 mm (ano de 2022), com média de 194,50 mm, o qual representa 6,93% da precipitação do período de estudo (2.806,47 mm) e para o monitoramento contínuo, ficou entre 40,00 mm e 87,90 mm (ano de 2020) e entre 19,30 mm e 218,80 mm (ano de 2021), com média de 539,45 mm, que corresponde a 32,35% da precipitação do período de estudo (1.619,70 mm). Sendo assim, a partir dos dados do monitoramento discreto e contínuo, a recarga média para área de estudo foi de 366,98 mm, que corresponde a, aproximadamente, 19,64% da precipitação total. Os resultados referentes a correlação entre a flutuação de nível freático e a precipitação pluviométrica apresentaram um coeficiente de determinação médio de 22,49%. Tanto a recarga como a correlação mostraram-se condizentes com as demais pesquisas realizadas no Brasil. Conforme exposto, recomenda-se a avaliação contínua da recarga aquífera para a utilização sustentável dos recursos hídricos subterrâneos, com a finalidade de assegurar seus usos múltiplos
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ANTENOR AMARAL FERNANDES NETO
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ORIENTAÇOES DE MESTRADO |
Mestrando(a) Eng(a)Antenor Amaral Fernandes Neto (202076870006) - Orientador(a): Prof.Dra.Aline Christian Pimentel Almeida Santos |
Tema: Análise normativa e espacial da distribuição de hidrantes do município de Ananindeua utilizando SIG |
Linha de Pesquisa: Planejamenro, projetos e infraestrutura hidráulicas em saneamento |
Tipo de PPT: Produto bibliográfico |
Data da defesa: 27/10/2023 |
Membro da banca 01: José Almir Rodrigues Pereira (PPGESA-UFPA) |
Membro da banca 02:Augusto da Gama Rego Instituto Federal do Pará - Campus Tucurui |
Local de realização do exame de qualificação: Auditório Laboratório de Engenharia Sanitária e Ambiental (LAESA) |
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Data: 27/01/2023
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O presente trabalho analisou as condições físicas e a distribuição dos hidrantes urbanos da cidade de Ananindeua-PA, com o uso de ferramentas SIG, e como essa distribuição impacta na proteção contra incêndio do município. Para isso, foram realizadas quatro etapas. Na primeira etapa foram levantadas as normas e legislações vigentes sobre hidrantes urbanos. Na segunda etapa foi realizado o levantamento de dados dos hidrantes existentes (quantificação, verificação das condições de instalação e manutenção, de uso e distribuição de hidrantes), por meio de visitas de campo e de coleta de dados secundários em órgãos responsáveis (COSANPA e Corpo de Bombeiros). Posteriormente, foi realizada a análise das condições de instalação e de distribuição dos hidrantes urbanos utilizando técnicas de geoprocessamento. Por último, após análise dos dados, foram elaboradas propostas de redistribuição desses equipamentos na área urbana de Ananindeua-PA (relatório técnico), com o intuito de otimizar o uso e tornar mais efetivo o combate contra incêndio. Assim, foi possível verificar a divergência entre as normas vigentes, bem como a distribuição inadequada dos hidrantes urbanos e sua manutenção deficiente, além de constar vazões inferiores ao que pede as normas.
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MAGALY SANTOS PINHEIRO
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ORIENTAÇOES DE MESTRADO |
Mestrando(a) Eng(a) Magaly Santos Pinheiro (202076870013) - Orientador(a): Prof.Dr.José Almir Rodrigues Pereira |
Tema: Determinação do custo de referencia para a elaboração de projetos e obras de rede coletora de esgoto sanitário |
Linha de Pesquisa: Planejamento, Projetos e Infraestruturas Hidráulicas de Saneamento |
Tipo de PTT: Manual/Protocolo |
Data do Exame de qualificação |
Membro da banca de qualificação-01: Prof(a) Dr Valdinei Mendes da Silva (CPF:278.161.092-53) IFPA |
Membro da banca de qualificação-02: Profa. Dra. Aline Christian P. Almeida Santos (CPF: 680.216.402-78-34) PPGESA/UFPA |
Local de realização do exame de qualificação: Auditório Laboratório de Engenharia Sanitária e Ambiental (LAESA)/Google Meet |
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Data: 26/01/2023
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Com a indisponibilidade de recursos financeiros e o alto custo de implantação de sistemas de esgotamento sanitário convencionais do tipo separador absoluto, regiões com ocupação desordenada e, muitas vezes, sujeitas a situações topográficas desfavoráveis, acabam não sendo contempladas com serviços básicos de esgotamento sanitário. Complementarmente, essa problemática é acentuada pela falta de referências locais quanto aos custos de implantação de redes coletoras de esgoto sanitário no Pará, bem como de parâmetros para concepção e elaboração de projetos no contexto estadual. Nesse sentido, é necessário que a tipologia da rede de esgoto sanitário a ser implantada em cada localidade seja cuidadosamente planejada, tendo em vista as particularidades de cada área, bem como os critérios técnicos a serem adotados no projeto. Considerando a problemática abordada, o objetivo da presente pesquisa foi de estabelecer valores, expressos em R$/m de projeto de rede coletora de esgoto sanitário da COSANPA, para análise e identificação dos itens da planilha orçamentária referente a rede coletora e ligações domiciliares, sendo atualizados os custos da planilha para a data base outubro de 2022.Na primeira etapa foram levantados no banco de dados da COSANPA e SEDOP os projetos e obras de rede coletora de esgoto, a partir desse levantamento foram selecionados os projetos para a elaboração da Ficha Técnica, contendo as principais informações do sistema de esgotamento sanitário. Na segunda etapa, a partir dos orçamentos de cada projeto, foram identificados os valores de construção praticados em projetos e obras de rede coletora de esgoto sanitário sob a gerência da COSANPA e SEDOP, em seguida os orçamentos foram analisados e atualizados os valores para a mesma data base (outubro de 2022), utilizando o emprego do Índice Nacional da Construção Civil - INCC da Fundação Getúlio Vargas – FGV. Na terceira etapa foi feita a comparação dos valores de rede coletora de esgoto de cada projeto. Na quarta etapa foi apresentado faixa de valores de construção de rede coletora de esgoto, expresso em R$/metro linear de rede. Essa faixa de valores possibilitará a determinação de indicador regional de referência quanto ao custo de implantação linear de rede coletora de esgoto sanitário, permitindo a aplicação em estudos, relatórios e projetos regionais de rede coletora; contribuindo com Consultorias Especializadas, com Instituições de Ensino Superior e com o Poder Público, com ações que culminem no incremento de cobertura com esgoto sanitário na Região Metropolitana de Belém.
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