Sewage Disposal
Mostrando 37-48 de 91 artigos, teses e dissertações.
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37. CARACTERIZAÇÃO, POR ESPECTROMETRIA DE MASSAS, DOS MICROPOLUENTES PRESENTES NO ESGOTO BRUTO E NOS EFLUENTES DE UM SISTEMA DE TRATAMENTO COMBINADO ANAERÓBIO-AERÓBIO
Pharmaceuticals and personal care products arrive at wastewater treatment plants after disposal, where arent completely degraded. There are only a few Brazilian studies which look for those organic micropolutants on the domestic sewage, as well as their removal in effluent treatment systems. This work developed an analytical methodology in order to identify
Publicado em: 2008
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38. Avaliação da qualidade do Rio São Lourenço, SP, sob influência de estações de tratamento de água e estações de tratamento de esgoto / ENVIRONMENTAL QUALITY IN AREA OF INFLUENCE OF MUD OF STATIONS FOR TREATMENT OF WATER AND SEWAGE
For a long time, there was a neglect to water resources, both by society as by the authorities. The rapid increase of population, causing disorderly occupations, was ignored by the public sectors and the society itself, resulting in environmental degradation. Ecotoxicological tests are essential to environmental assessment, together with chemical and biologi
Publicado em: 2008
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39. Zn, Ni, Cu, Fe and S in sewage sludge: chemical behaviour, adsorption and treatment proposal / Zn, Ni, Cr, Cu, Fe e S em Iodo de esgoto: comportamento químico, adsorção e proposta de tratamento
The increase of the wastewater treated volume in Brazil has demanded alternatives to the sewage sludge final disposal. At first, agricultural use is one of the viable recommendations since sludge is rich in organic matter, macro and micronutrients necessary to the fertility of the soil. However, it is necessary to consider the environmental impact of some of
Publicado em: 2008
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40. Avaliação e critérios de eficiência nos processos de tratamento de fluido de corte por eletroflotação / Evaluation criteri and efficiency in the procedures for treatment of fluid cutting by eletroflotation
In the machining process cutting fluids are used to facilitate the manufacture of metal parts, which has resulted in problems of various orders, ranging from the generation of harmful effects on the desktop to the aggression of the environment with their improper disposal. The cutting fluids are composed of oils and minerals, synthetic solutions and water, c
Publicado em: 2008
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41. Uso da tecnologia de troca iônica no tratamento de águas contaminadas com Nitrato do Aqüífero Dunas-Barreiras, Natal/RN-Brasil
The city of Natal comprises an area of about 170 km (65,63 squares miles). The Dunas-Barreiras Aquifer is the most important reservoir of the coastal basin of RN. It is being responsible for the water supplying of about 70% of the population, however, due to the sewage disposal system by cesspools and drains, it is presently affected in a great extent by nit
Publicado em: 2008
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42. Incorporação de lodo de esgoto na massa cerâmica para fabricação de tijolos maciços: uma alternativa para a disposição final de resíduo
A disposição final adequada do lodo de esgoto constitui um problema crescente enfrentado pelos prestadores de serviços de saneamento. Por outro lado, devido às suas características de produção, a Indústria Cerâmica possui uma enorme capacidade para absorver estes resíduos como parte de sua matéria-prima. O presente trabalho teve como objetivo aval
Publicado em: 2008
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43. Procedimentos para apropriação de tecnologias para implantação de sistema de saneamento ambiental em comunidades isoladas e com poucos recursos financeiros e humanos. / Procedures for ownership of technologies for deployment of system on environmental sanitation in isolated communities with limited financial and human resources.
The environmental sanitation systems absence causes many problems of health, elevating significantly private and public expenses in the sector, mainly in the latter, concerning the handling of illnesses, as malaria, dengue, illnesses of Chagas, diarrheas, typhoid fever, among many others. Many studies have shown the intrinsic relation of the investments in i
Publicado em: 2008
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44. Teores de nitrato (NO3-) e amônio (NH4+) nas águas do aqüífero Barreiras nos bairros do Reduto, Nazaré e Umarizal - Belém/PA
This paper evaluates the occurrence of nitrate and ammonium in the Barreiras aquifer in the metropolitan area of Belém, Pará State, Brazil. The results show that some wells display ammonium and nitrate concentrations above or close to the limits of water potability regulations. The main cause of the pollution of these waters is related the local disposal o
Química Nova. Publicado em: 2007
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45. 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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46. Estudo de caso sobre a utilização do RCD (residuos de construção e demolição) em reaterros de valas nos pavimentos de Piracicaba SP / A case study about the use of RCD (residues of construction and demolition) in earthwork of ditches in Piracicaba SP pavements
Case study on the application of RCD (Residues of Construction and Demolition) in the city of Piracicaba, São Paulo. These residues, popularly known as dumps, are waste from civil construction, from demolition of houses, commercial and industrial areas. It is estimated that the city of São Paulo produces approximately seventeen thousand tons of this type o
Publicado em: 2007
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47. Saneamento urbano e qualidade das Ãguas de pequenas obras hÃdricas na Ãrea de XingÃ
This work dealt with the environmental sanitation (water supply, sewage, drainage, solid wastes, and public health) in the urban zone of 29 municipalities of Xingà area. The research showed the main deficiencies found through surveys on site and by consultings in official institutions. The Xingà area is entirely located in the semi-arid zone of Brazil. Acc
Publicado em: 2007
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48. "Técnicas espectroscópicas aplicadas à análise da matéria orgânica do solo em pomares de citros sob adição de lodo de esgoto" / "Spectroscopic techniques applied to the soil organic matter determination in citrus cultivations under sewage sludge application"
The production of sewage sludge increases daily in treatment stations and definitive disposal is a problem to be resolved. One of the alternatives found to dispose such residues, with environmental and economic benefits, is agricultural recycling, owing to its organic composition and plant nutrients. The objective of the present work was to asses the effects
Publicado em: 2006