Increasing activated sludge aggregation by magnetite nanoparticles addition

The behavior of mixed samples (activated sludge and wastewater) was investigated after the addition of magnetite nanoparticles (NP-magnetite) in jar tests, with objective to increase the aggregation of sludge and improve its settleability, aiming for future application in granular sequencing batch r...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 79(2019), 5 vom: 26. März, Seite 993-999
1. Verfasser: Domingos, Dayane Gonzaga (VerfasserIn)
Weitere Verfasser: Henriques, Rosana Oliveira, Xavier, Jéssica Antunes, Junior, Nelson Libardi, da Costa, Rejane Helena Ribeiro
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Magnetite Nanoparticles Sewage Waste Water
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520 |a The behavior of mixed samples (activated sludge and wastewater) was investigated after the addition of magnetite nanoparticles (NP-magnetite) in jar tests, with objective to increase the aggregation of sludge and improve its settleability, aiming for future application in granular sequencing batch reactors. The NP-magnetite was synthesized by the method of ion co-precipitation of Fe2+ and Fe3+ and characterized. The process of sludge sedimentation was evaluated for two different experimental strategies, with NP-magnetite concentrations between 25 and 150 mg L-1. The concentration of 75 mg L-1 was the most favorable to process, as evidenced by sludge volumetric index and density. The results presented indicate that the addition of nanoparticles has the potential to improve aerobic granular systems, increasing the settleability of seed sludge 
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650 7 |a Sewage  |2 NLM 
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700 1 |a Henriques, Rosana Oliveira  |e verfasserin  |4 aut 
700 1 |a Xavier, Jéssica Antunes  |e verfasserin  |4 aut 
700 1 |a Junior, Nelson Libardi  |e verfasserin  |4 aut 
700 1 |a da Costa, Rejane Helena Ribeiro  |e verfasserin  |4 aut 
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