2018
DOI: 10.1590/s1517-707620180003.0521
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Physico-chemical characterization of centrifuged sludge from the Tamanduá water treatment plant (Foz do Iguaçu, PR)

Abstract: The water treatment process generates a residue called water treatment plant (WTP) sludge, which needs to be correctly characterized to ensure appropriate disposal or reuse. This study aimed to characterize the centrifuged sludge produced at the Tamanduá WTP, Iguaçu Falls City, Brazil, and considered opportunities for its reuse in the production of concrete for the civil construction industry. Wet sludge (sludge in its natural form) analysis included the determination of total solids, moisture content, density… Show more

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Cited by 7 publications
(3 citation statements)
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“…The physical-chemical characteristics of WTS are showed in Table 2, and the chemical composition of the WTS and cement are listed in Table 3. The chemical composition of natural and calcined WTS was close to those found in other investigations [13,24], and we highlight that the highest amount of SiO 2 is found in the calcined WTP and the Al 2 O 3 comes from coagulant used in the decantation process. The loss of ignition (LOI) is mainly related to the high amount of volatile matter, and when the sludge is calcined, the LOI is reduced to 18.2%.…”
Section: Sustainability 2019 11 X For Peer Review 4 Of 19supporting
confidence: 86%
“…The physical-chemical characteristics of WTS are showed in Table 2, and the chemical composition of the WTS and cement are listed in Table 3. The chemical composition of natural and calcined WTS was close to those found in other investigations [13,24], and we highlight that the highest amount of SiO 2 is found in the calcined WTP and the Al 2 O 3 comes from coagulant used in the decantation process. The loss of ignition (LOI) is mainly related to the high amount of volatile matter, and when the sludge is calcined, the LOI is reduced to 18.2%.…”
Section: Sustainability 2019 11 X For Peer Review 4 Of 19supporting
confidence: 86%
“…O lodo de processamento de água é um subproduto indispensável do tratamento de água e é gerado principalmente durante a coagulação de contaminantes com sais de alumínio ou ferro (Kamizela et al 2020), que desestabilizam as partículas coloidais em solução e em suspensão na água bruta (Ramirez et al, 2018). O lodo da ETA (Estação de Tratamento de Água) contém muitos contaminantes, como metais pesados e agentes patógenos que podem representar risco à saúde humana, além disso é composto principalmente por aluminossilicatos (Junior et al, 2020).…”
Section: Doiunclassified
“…O lodo de processamento de água é um subproduto indispensável do tratamento de água e é gerado principalmente durante a coagulação de contaminantes com sais de alumínio ou ferro (Kamizela et al 2020), que desestabilizam as partículas coloidais em solução e em suspensão na água bruta (Ramirez et al, 2018). O lodo da ETA (Estação de Tratamento de Água) contém muitos contaminantes, como metais pesados e agentes patógenos que podem representar risco à saúde humana, além disso é composto principalmente por aluminossilicatos (Junior et al, 2020).…”
Section: Introductionunclassified