Needs-based sewerage prioritization: Alternative to conventional cost-benefit analysis

Rashid, Md. Mamunur; Hayes, Donald F.

doi:10.1016/j.jenvman.2011.05.002

Cited by 12 publications

(8 citation statements)

References 16 publications

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“…tema. Decisões geridas de forma precária e pouco estruturadas resultam em baixa qualidade e alto impacto na eficiência e custos do tratamento, o que por consequência gera pressão ambiental e econômica principalmente em países em desenvolvimento (TSAGARAKIS et al, 2002;KALBAR et al, 2012;SPERLING, 2014 Dentre os 16 artigos do portfólio bibliográfico, 6 (37,5%) foram publicados pelo (ZENG et al, 2007;VASILOGLOU et al, 2009;RASHID et al, 2011;KARIMI et al, 2011;MOLINOS et al, 2012;KALBAR et al, 2012b;GARRIDO et al, 2014). Ao passo que apenas dois trabalhos apresentaram modelos desenvolvidos pelos autores (REFSGAARD, 2006;MAURER et al, 2012).…”

Section: Resultsunclassified

“…Foi observado que 31% dos trabalhos identificam o decisor no trabalho e destacam sua importância (Figura 4(c)), entretanto, não o tem em conta para a construção integral do modelo, sendo citado por estes trabalhos como agente fundamental na definição de pesos e julgamentos quanto aos critérios, mas não responsável pela total estruturação do modelo (ZENG et al, 2007;RASHID et al, 2011;KALBAR et al, 2012a;KARIMI et al, 2011;MOLINOS et al, 2015). Ao passo que, 56% não explicitam ou identificam o decisor no trabalho, mas apresentam outros fatores como sendo o agente de decisão, tais como:…”

Section: Resultsunclassified

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Abordagem multicritério na seleção de alternativas de tratamento de efluentes: uma revisão sistêmica da literatura

Goffi

Bortoluzzi

Trojan

et al. 2018

RHE

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Resumo: O estudo bibliográfico estruturado tem se tornado uma excelente ferramenta para avaliar tendências cientificas em diferentes campos do conhecimento. Neste sentido, este trabalho busca analisar as oportunidades de pesquisa, apresentando uma visão geral a cerca da tomada de decisão em projetos de tratamento de efluentes no cenário internacional. ProKnow-C (Knowledge Development ProcessConstructivist) foi a ferramenta de intervenção utilizada, que consiste em um processo estruturado para geração de conhecimento em um tema determinado a partir dos interesses e limitações do pesquisador. Ao final do processo de busca foram identificados 16 artigos com reconhecimento científico e conteúdo alinhado ao tema de pesquisa. Os primeiros resultados da pesquisa demostraram uma acentuada tendência de crescimento a cerca do tema nos últimos 7 anos. A análise aprofundada dos trabalhos demonstrou que a construção dos modelos no cenário internacional segue padrões possíveis de serem replicados em diferentes cenários, considerando diferentes aspectos e necessidades dos decisores. De modo geral, os estudos aplicando métodos de apoio à decisão, especialmente para a seleção de tecnologias de tratamento de efluentes se demonstraram de alto impacto, e por consequência alta relevância.Palavras-chave: Bibliometria. Tomada de decisão. Tratamento de Efluentes. Análise sistêmica da literatura. Abstract:The structured bibliographic study has become an excellent tool to evaluate scientific trends in different fields of knowledge. In this sense, this work aims to analyse the research opportunities, by presenting an overview about decision making in sanitation projects in the international scenario. ProKnow-C (Knowledge Development Process -Constructivist) was the intervention tool applied in this work, which consists of a structured process for generating knowledge over a given topic based on the researcher interests and limitations. At the end of the search process, 16 articles with scientific recognition and content aligned with the research were identified. The first survey results have showed a increase growth trend around the theme in the last 7 years. The in-depth analysis have showed that the construction of the international models follows standard methodologies which can be replicated in different scenarios, by considering different aspects and decision makers preferences. Studies applying decision support methods in the sanitary area, especially for the selection of wastewater treatment technologies have been shown to have a high impact, and consequently a high relevance.

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Section: Resultsunclassified

Abordagem multicritério na seleção de alternativas de tratamento de efluentes: uma revisão sistêmica da literatura

Goffi

Bortoluzzi

Trojan

et al. 2018

RHE

View full text Add to dashboard Cite

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“…As a part of feasibility study made by Biotop Company [48], both the conventional gravity and SDGS systems were considered with pumping stations. Further comparison of both alternatives was based on the cost-effectiveness analysis (CEA) method, in which the financial costs are compared with the non-pecuniary benefits obtained [7,49,50]. There are several methods used for estimating cost effectiveness.…”

Section: Cost Analysis Methodologymentioning

confidence: 99%

A Case Study of a Small Diameter Gravity Sewerage System in Zolkiewka Commune, Poland

Nawrot

Matz

Błażejewski

et al. 2018

Water

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This article presents a small diameter gravity sewerage system in a rural area. In this system, domestic wastewater was preliminarily treated in septic tanks equipped with outlet filters, so the effluent features were similar to those of clear water. Additionally, some outlets were equipped with floating-ball check valves to avoid backflow. One of the pressure mains was used as a gravity collector conveying septic tank effluent in the direction of the pumping station during pump idle time. The operation of the system was simulated using SWMM computer code. The simulation results were validated for data obtained from part of a sewerage system in Kolonia Zolkiew and Rozki village consisting of two pumping stations and 86 serviced households using polyethylene pipes of outer diameter 50–63 mm. The results of the measurement of the outflows from one pumping station are presented. The simulation results showed good agreement with the empirical data, especially after several simulation days. The greatest discrepancy during the start-up period was the consequence of the initial conditions describing the empty pipework. Thanks to storage in the pump sumps, septic tank and pipes, as well as their smart operation, a relatively uniform inflow to the pumping stations was achieved. Simulations in SWMM showed that there is still potential to optimize the sewerage system through more adequate pump selection and pipe diameters.

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“…Despite the significant development of sewerage systems in rural countryside during the last decade, the access of rural population to sanitation is limited in Poland [1,2] and including possibility of significant refunds of the investment costs by e.g. EU funds, application of decision-making stage of conceptual design, supported by technical and economic multivariate analysis seems to be necessary [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Economic Analyses In Sewage System Designing For Rural Settlement – Case Study

Lewicka

Widomski

Łagód

2016

Architecture, Civil Engineering, Environment

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The paper presents application of multivariate economic analysis to decision making process of selection of the most economically suitable concept of sanitary sewage system for a selected rural settlement in Poland. Analysis covered Drelow, Lublin Voivodeship, settlement area with 121 households with 421 residents and several municipal services. Three variants of sewage removal and treatment were developed: unconventional gravity-pressure network, gravity-pressure network combined with local domestic wastewater treatment plants (WWTPs) and full pressure sewerage network. In all variants, the container wastewater treatment plant of daily capacity 450 m3 day-1 was applied. Estimations of investment and exploitation costs for 30 years period operation were performed. Economic multivariate analysis was based on: Payback Period, Dynamic Generation Cost (DGC), Net Present Value (NPV) and Benefit-Cost Ratio (BCR). The obtained indicators were the input data for the weighted sum model allowing to select the most appropriate variant. Analysis showed that the most suitable was variant No 1. However, it was also noticed that all of the tested designs were ineffective economically.

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Needs-based sewerage prioritization: Alternative to conventional cost-benefit analysis

Cited by 12 publications

References 16 publications

Abordagem multicritério na seleção de alternativas de tratamento de efluentes: uma revisão sistêmica da literatura

Abordagem multicritério na seleção de alternativas de tratamento de efluentes: uma revisão sistêmica da literatura

A Case Study of a Small Diameter Gravity Sewerage System in Zolkiewka Commune, Poland

Economic Analyses In Sewage System Designing For Rural Settlement – Case Study

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