A busca pela universalização do abastecimento de água e esgotamento sanitário: evolução, desafios e perspectiva. Um estudo de caso em Manaus-AM

Aragão, Jefferson da Silva; Borges, João

doi:10.5801/ncn.v13i3.4974

Cited by 2 publications

(2 citation statements)

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“…In addition to drawing up the National Plan for Basic Sanitation (Plansab), an instrument that guides pipelines and sets targets for reaching 90% of the population served by sanitary exhaustion by 2033 (BRAZIL, 2013;ARAGÃO & BORGES, 2018), the Federal Government has reserved to municipalities the function of planning actions for this purpose. To do so, it is foreseen that the planning is the responsibility of the health service holder, being indelegable to another entity (ATAIDE & BORJA, 2017).…”

Section: Theoretical Framementioning

confidence: 99%

Socioeconomic Biases: Analysis of Popular Perception About Sanitary Sewage Services in Pernambuco

Prysthon¹,

El-Deir²,

Baia³

et al. 2023

RGSA

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Purpose: This article aimed to know the popular knowledge about sanitary sewage in relation to the socioeconomic profile of the participants. Theoretical framework: Corresponds to searches in scientific literature, legislation and standards and technical data on social research and basic sanitation. Method/design/approach: Due to the Covid-19 pandemic, the survey was carried out virtually, with the sharing of an electronic questionnaire via email and WhatsApp messages. The survey responses were crossed with the qualifications of the participants according to the parameters of the Brazilian Institute of Geography and Statistics. The data were confronted with regulations and existing scientific research on the subject. Results and conclusion: The responses of 251 participants were considered. Although only nine had academic training up to Elementary School, these being residents of low-income neighbourhoods, it was observed that this was the group that most deals with the problems arising from the lack of basic sanitation, more specifically sanitary sewage. With this, it was possible to point out the populations of the poorest communities as the public most affected by the problems caused by the lack of a sanitary sewage system. Finally, resolving strategies were formulated for the problems now identified. Research implications: It mainly contributes with regard to the proposition of strategic initiatives to solve problems arising from the malfunction and/or use of basic sanitation services. Originality/value: It mainly contributes with regard to the proposition of strategic initiatives to solve problems arising from the malfunction and/or use of basic sanitation services.

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Section: Theoretical Framementioning

confidence: 99%

Socioeconomic Biases: Analysis of Popular Perception About Sanitary Sewage Services in Pernambuco

Prysthon¹,

El-Deir²,

Baia³

et al. 2023

RGSA

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“…Urban rivers are highly vulnerable to pollution due to their role of assimilating municipal sewage loads and surface runoff, generated by disordered use and occupation along the watershed (PRAJAPATI et al, 2016;ZHANG et al, 2020). The sewage services in Brazil, especially in the Amazon region, causes water insecurity and alteration of aquatic environments (ARAGÃO et al, 2018;YOSHII et al, 2019). Regarding the current situation, the state of Pará has 144 municipalities and only 1 of them has collection and treatment of 5% of the daily sewage load (ANA, 2017).…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling in the Urumari micro-watershed using Streeter-Phelps mathematical models and the enhanced Do-Bod model

Moura

Lopes

Ribeiro

et al. 2020

RICA

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When a certain load of pollutants is dumped in urban surface waters, the natural hydrological parameters are altered and a consequent dispersion of a contaminant occurs. Water self-purification is a natural recovery mechanism that aims to restore the natural parameters of water quality. In the municipality of Santarém, the Urumari micro-watershed, one of the main urban streams and a tributary of the Amazon river, suffers from increasing degradation. Thus, it is necessary to systematically monitor the water quality of the micro-watershed, through mathematical modeling, in order to identify environmental impairment and propose mitigating tools that facilitate self-purification capacity. The aim of this work was to evaluate the degree of disturbance of the Urumari micro-watershed using Streeter-Phelps mathematical models and the Enhanced DO-BOD model. The software Curve Expert 1.4 was used to adjust the coefficients of the mathematical models, using the Levenberg-Marquardt nonlinear function adjustment method. The complete mathematical model of DO and BOD considered the parcels of punctual deficit, microbial BOD, nitrification, sediment demand, photosynthesis and respiration. Three coefficients of the Streeter-Phelps model and six coefficients of the Enhanced DO-BOD model were adjusted according to the experimental data of dissolved oxygen and water travel time. The mathematical models satisfactorily correlated the experimental data. The values of the correlation coefficient, mean absolute deviations and quadratic deviations are for the Streeter-Phelps model and the Enhanced DO-BOD model, respectively. The Streeter-Phelps model presented the best correlation to the experimental data with the values of R2 equal to 0.83; mean absolute deviation equal to 0.56 and quadratic deviations equal to 4.98.

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A busca pela universalização do abastecimento de água e esgotamento sanitário: evolução, desafios e perspectiva. Um estudo de caso em Manaus-AM

Cited by 2 publications

References 0 publications

Socioeconomic Biases: Analysis of Popular Perception About Sanitary Sewage Services in Pernambuco

Socioeconomic Biases: Analysis of Popular Perception About Sanitary Sewage Services in Pernambuco

Mathematical modeling in the Urumari micro-watershed using Streeter-Phelps mathematical models and the enhanced Do-Bod model

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