Sanitary Sewage Treatment
Mostrando 25-36 de 49 artigos, teses e dissertações.
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25. Avaliação de modelo de tomada de decisão para escolha de sistema de tratamento de esgoto sanitário / Evaluation of decision-making model to choice system for treatment of sewage
A solution for the preservation of the water is the investment in sanitation and in the treatment of sanitary sewer, which is accomplished through sewer treatment stations. However, the choice of the treatment system to be implanted in a municipal district should meet its technical, environmental, social and economical requirements. The main objective of thi
Publicado em: 2009
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26. Influência das águas da Bacia Hidrográfica Pirangi na balneabilidade das praias de Pirangi, nos municípios de Nísia Floresta e Parnamirim Rio Grande do Norte, Brasil
The Pirangi beach is located in the eastern coastline of Rio Grande do Norte state, in the municipality of Parnamirim and Nísia Floresta. In it flow into Pirangi Watershed (PW), whose water receives large amounts of pollutants, mainly domestic and industrial sewage from districts where pass the rivers that consist it, compromising, thus, the bathing water q
Publicado em: 2009
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27. Avaliação da co-disposição do lodo de tanques sépticos e fração orgânica de resíduos sólidos domiciliares em reatores anaeróbios / Evaluation of co-disposal of sludge from septic tanks and organic fraction of domestic solid waste in anaerobic reactors
Despite being an emerging country, unfortunately the sanitary situation of Brazil is quite precarious. Only 52.2% of the 5,507 brazilian municipalities have some type of sanitary service (IBGE, 2000). In this alarming scenario, individual solutions are gaining more importance. The adoption of septic tanks as an alternative to the solution of the sewage becom
Publicado em: 2009
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28. Irrigation eucalyptus with sanitary sewage pond : efficiency of soil-plant system post-treatment / Irrigação de eucalipto com efluente sanitario de lagoa facultativa : eficiencia do sistema solo-planta no pos-tratamento
O uso de efluente sanitário tratado na agricultura, como fonte de água e nutrientes, é uma alternativa à eventual necessidade de um pós-tratamento e ao lançamento em corpos d´água. O trabalho experimental foi desenvolvido na UGRHI 08 (Unidade Hidrográfica de Gerenciamento de Recursos Hídricos Sapucaí/Grande), no município de Franca-SP, e teve a f
Publicado em: 2009
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29. Produção de madeira, ciclagem de nutrientes e fertilidade do solo em plantios de Eucalyptus grandis, após aplicação de lodo de esgoto / Wood production, nutrient cycling and soil fertility in Eucalyptus grandis stand after sewage sludge application
Several Brazilian cities have sewer treatment stations, but a lot of cities do not treat the sewage yet, causing a strong environmental impact, mainly in water courses. The sewer treatment process generates a big amount of sewage sludge, so the final destination must be well studied, because it involves environmental, economic, social and sanitary consequenc
Publicado em: 2007
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30. Effects of the accepting water treatment plants (WTP) residuals at wastewater treatment plant (WWTP) using SBR activated-sludge process with extended aeration in the city of Juquitiba, SP. / Efeitos do recebimento do lodo da estação de tratamento de água pelo sistema de tratamento de esgoto por lodo ativado em bateladas e aeração prolongada do município de Juquitiba - SP.
There are different technical engineering solutions for the treatment and final disposal of water treatment plants (WTPs) residuals. Discharge of WTP residual to a wastewater treatment plant (WWTP) is a technical solution in evidence. Therefore, the purpose of this study was to evaluate the capacity of the WWTP using sequencing batch reactor (SBR) activated-
Publicado em: 2007
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31. Avaliação da adição de nitrato de amônio para redução de odor nos esgotos de Pereira Barreto - SP: reflexos na qualidade da água do reservatório de Três Irmãos, após dez anos de aplicação / Evaluation of the addition of ammonium nitrate to the sewer system in Pereira Barreto - SP, in order to reduce the odor: reflections upon the quality of the water in the Três Irmãos reservoir, aften ten years of application
It evaluates the alteration of the quality of the water in the region of discharges of domestic effluents into the Três Irmãos reservoir, due to the application, since 1996, of ammonium nitrate into the sewer system of the city of Pereira Barreto. Six trips to collect samples were performed bimonthly between October 2004 and August 2005.The samples were co
Publicado em: 2007
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32. "Wetlands construídos" de fluxo vertical com meio suporte de solo natural modificado no tratamento de esgotos domésticos / "Wetlands construídos" de fluxo vertical com meio suporte de solo natural modificado no tratamento de esgotos domésticos / Vertical flow constructed wetlands systems with substract of natural soil for domestic wastewater treatment / Vertical flow constructed wetlands systems with substract of natural soil for domestic wastewater treatment
In Brazil, the municipalities with sewerage system is 52,2% of the total (PNSB, 2000). Therefore, it is low figure and there are regional discrepancies, as the percentage of attendance at the southern and southeastern regions are higher then at the northern northeastern and middle western. The situation is even worse at the rural area, where most localities
Publicado em: 2007
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33. Effects of treated sewage effluent irrigation on the soil-plant system of an Oxisol cultivated with sugarcane / Efeito da irrigação com efluente de esgoto tratado no sistema solo-planta em Latossolo cultivado com cana-de-açúcar
O uso de efluente de esgoto tratado (EET) na agricultura apresenta-se como uma alternativa viável por se tratar de uma fonte de umidade e de nutrientes minerais aos sistemas agrícolas, aliado à redução da utilização de água de boa qualidade na irrigação, bem como a diminuição da descarga do EET nos rios, minimizando assim possíveis danos ambient
Publicado em: 2007
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34. Avaliation of the sanitary, agronomics and final product quality aspects in watermelons irrigated with treated sewage / Avaliação dos Aspectos Sanitários, Agronomicos e de Qualidade em Melancias Irrigadas com Esgoto Tratado
The reuse of treated sewage on watermelon irrigation, variety Crimson Sweet, was investigated not only considering the sanitary aspects but also the productivity and final product quality. The experiment was conducted in the Research Centre on Wastewater Treatment and Reuse, owned by the Company of Water and Wastewater of Ceará, in Aquiraz-CE. The experimen
Publicado em: 2006
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35. Utilization of sanitary sewage treated in polishing lagoons to grow Nile tilapia alevins productive and economic aspects / Utilização de esgotos sanitários tratados em lagoas de polimento para a criação de alevinos de tilápia do Nilo aspectos produtivos e econômicos
Aiming to evaluate the effects of stock rate and water renewal on the performance of alevins of the Nile Tilapia, Oreochromis niloticus (L.), reared in effluent with sanitary sewage treated in polishing lagoons, 1220 alevins of Thai origin were used with initial mean weight of 0.61 0.1g. The experiment was arranged in a randomized block design, with six bloc
Publicado em: 2006
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36. Microbiological characterization of the removal and degradation of linear alkylbenzene (LAS) in anaerobic reactors with biofim and planctonics cells / Caracterização microbiológica da remoção e degradação de alquilbenzeno linear sulfonado (LAS) em reatores anaeróbios com biofilme e células planctônicas
The objective of this work was to evaluate the degradation of linear alkylbenzene sulfonate (LAS) in anaerobic conditions. The first experiments were accomplished in reactors in batch fed with different substrates and concentration of LAS. In spite of the surfactant to be adsorbed in the sludge interferences was not observed in the metabolism of anaerobic mi
Publicado em: 2006