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Previous issue date: 2012-08-31 / The simulation of SES-Natal Ponta Negra: mitigation of environmental risks and predictive maintenance strategy was developed in the context of several operational irregularities in the pumping stations and sewage systems in the system Ponta Negra. Thus, the environmental risks and complaints against the company due to overflows of sewage into the public thoroughfare became common. This neighborhood has shown in recent years an increase of resident higher than the initial expectation of growth. In this sense presumed the large population growth and generation of sewers higher than expected, associated to the use of corrective maintenance and misuse of the system may be the main causes of operational failures occurring in the SES. This study aimed at analyzing the hydraulic behavior of SES Ponta Negrathrough numerical simulation of its operation associated to future scenarios of occupation. The SES Ponta Negra has a long lengthof collection networks and 6 pumping stations interconnected, being EE 1, 2, 4 coastal way, and beach Shopping interconnected EE3 to receives all sewers pumped from the rest pumping station and pumped to the sewage treatment station of neighborhood which consists of a facultative pond followed by three maturation ponds with disposal of treated effluent into infiltration ditches. Oncethey are connected with each other, the study was conducted considering the days and times of higher inflow for all lifts. Furthermore, with the aim of measuring the gatherer network failures were conducted data survey of on the networks. Thephysical and operational survey data was conducted between January/2011 and janeiro/2012. The simulation of the SES was developed with the aim ofdemonstrating its functioning, eithercurrently and in the coming years, based in population estimates and sewage flow. The collected data represents the current framework of the pumping stations of the SES Ponta Negra and served as input to the model developed in MS Excel ? spreadsheet which allowed simulating the behavior of SES in future scenarios. The results of this study show thatBeach Shopping Pumping Station is actually undersized and presents serious functioning problemsthatmay compromise the environmental quality of surrounding area. The other pumping stations of the system will reach itsmaximum capacity between 2013 and 2015, although the EE1 and EE3 demonstrateoperation capacity, even precariously, until 2017. Moreover, it was observed that the misuse of the network system, due to the input of both garbage and stormwater, are major factors of failures that occur in the SES. Finally, it was found that the corrective maintenance appliance, rather than predictive,has proven to beinefficient because of the serious failuresin the system, causing damage to the environment and health risks to users / A Simula??o do SES Ponta Negra- Natal: mitiga??o dos riscos ambientais e estrat?gia de manuten??o preditiva foi desenvolvida no contexto de diversas irregularidades operacionais nas esta??es elevat?rias e redes coletoras de esgoto no sistema de Ponta Negra. Com isso, os riscos ambientais e as denuncias contra a empresa de saneamento devido aos extravasamentos de esgotos em via p?blica se tornaram comuns. Esse bairro vem apresentando nos ?ltimos anos um aumento populacional muito maior do que a expectativa inicial de crescimento. Nesse sentido, sup?e-se o grande crescimento populacional e de gera??o de esgotos acima do esperado, atrelado ? utiliza??o de manuten??o corretiva e o mau uso do sistema podem ser as principais causas das falhas operacionais ocorridas neste SES. Esse estudo teve por objetivo analisar o comportamento hidr?ulico do SES de Ponta Negra a partir da simula??o num?rica do seu funcionamento associados ? cen?rios futuros de ocupa??o. O SES Ponta Negra apresenta quil?metros de redes coletoras e 6 esta??es elevat?rias interligadas, sendo a EE 1, 2, 4, Via Costeira e Praia Shopping interligadas a EE3, qual recebe todos os efluentes das demais elevat?rias e bombeia para a esta??o de tratamento de esgotos do bairro a qual ? constitu?da de uma lagoa facultativa seguida de 3 lagoas de matura??o com disposi??o dos efluentes tratados em valas de infiltra??o. Por serem interligadas entre si, o estudo foi realizado considerando os dias e horas de maior vaz?o afluente para todas as elevat?rias. Al?m disso, a fim de mensurar as falhas nas redes coletoras foram realizados levantamento dos dados de obstru??es nessas redes. O levantamento e coleta de dados f?sicos e operacionais foram realizados entre janeiro/2011 e janeiro/2012. A simula??o do SES foi desenvolvida, a fim de nos mostrar como esse est? funcionando atualmente, e como ir? funcionar nos pr?ximos anos, com base na estimativa populacional e de vaz?o de esgotos. Os dados coletados representam o quadro atual das esta??es elevat?rias do SES Ponta Negra e alimentaram o modelo num?rico desenvolvido em planilha eletr?nica MS Excel? que permitiu simular o comportamento do SES em cen?rios futuros. Os resultados obtidos neste estudo mostram que a elevat?ria Praia Shopping j? est? subdimensionada e apresenta falhas graves de funcionamento que compromete a qualidade do ambiente os aspectos ambientais da ?rea onde est? inserida. As demais elevat?rias do sistema atingir?o sua capacidade m?xima segura de bombeamento entre os anos de 2013 e 2015, embora a EE 1 e EE 3 tenham a capacidade de operar, ainda que de forma muito prec?ria, at? o ano de 2017. Al?m disso, observou-se que o mau uso do sistema, com a entrada de lixo e ?gua de chuva na rede coletora, s?o fatores determinantes para as falhas que ocorrem no SES. E finalmente, constatou-se que a utiliza??o de manuten??o corretiva, em vez da preditiva, no sistema como um todo tem se mostrado altamente ineficiente causando graves falhas no sistema, gerando com isso danos ao meio ambiente e riscos sanit?rios aos clientes
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15997 |
| Date | 31 August 2012 |
| Creators | Lima, Fabiana Pereira de |
| Contributors | CPF:37994476449, http://lattes.cnpq.br/4599100661657180, Righetto, Antonio Marozzi, CPF:18446663872, http://lattes.cnpq.br/0476984348484601, Silva, Tarciso Cabral da, CPF:07838107415, http://lattes.cnpq.br/7163143466783869, Moreira, L?cio Fl?vio Ferreira |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-gradua??o em Engenharia Sanit?ria, UFRN, BR, Saneamento Ambiental; Meio Ambiente; Recursos H?dricos e Hidr?ulica |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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