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Navegando por Assunto "Collection Network"

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    Proposta de uma metodologia para o gerenciamento dos resíduos removidos em limpezas de redes coletoras de esgoto sanitário na RMB-PA.
    (Universidade Federal do Pará, 2024-06-27) ROCHA, Edgleuberson Guimarães; ADAM, Katiucia Nascimento; http://lattes.cnpq.br/2498018628901734
    Public cleaning services for sanitary sewage collection networks generate waste. Proper management of this waste helps to extend the useful life of landfills, prevent environmental degradation and prevent sanitation service providers from becoming subject to civil and criminal penalties, according to article n. 60 of the environmental crimes law n. 9,605/1998. The objective is to present a proposal for a methodology for managing waste removed in the cleaning of sewage collection networks sanitary - SCNS. Developed in the area Sewage Treatment Station-STS II, at Avenue Tavares Bastos, S 1°24'18.4" W 48°26'52.3". The work was carried out in 3 stages, with the first stage determining the volume (m³) of non-coarse waste, decantable in the waste tanks of hydrojet trucks, removed in the SCN cleanings, in the year 2022, considering for comparative purposes the 3 rainiest and even months of that year. In the volumetric determination, a mathematical model for determining volumes of horizontal cylinders was used and, to validate this model, cubages were carried out, with a 1m³ stretcher, of the decantable waste from the tanks of two trucks, in triplicate, and the arithmetic means of the volumes obtained were compared. In the 2nd stage, the technically suitable location was identified to: package, sanitize and dispose of the waste removed in the SCN cleanings for final disposal. To this end, the characteristics of the SSS were analyzed, where the waste in question is concentrated, considering the availability of area for expansion, security (personal and property) and the proximity of a preliminary sewage station unit for treatment of the liquid part. Finally, in the 3rd stage, a proposal for a methodology for managing this waste was presented. To this end, all the steps from the previous stages were compiled sequentially, from the control of the information on the service orders for carrying out the SCN cleanings to the final disposal of the waste generated in this SCN cleaning. As a result, the volume values determined for the three rainiest months were 3.182 m³, and for the three less rainy months, 3.147 m³. The rainy season was considered the most critical for a possible annual extrapolation. The location with geographic coordinates 1°24'17.4"S 48°26'49.9"W, on the STS II site, was adopted for the implementation of a device with impermeable flooring and transparent covering, interconnected to pumping station 4 of STS II. It was concluded that it is possible to apply the methodology presented for the management of waste removed in the cleaning of SCN, for immediate disposal in a sanitary landfill. For the practice of reusing this waste, specific studies for this purpose will be essential
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