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Master's Dissertation
DOI
10.11606/D.18.2010.tde-06012011-104749
Document
Author
Full name
José Luciano Verçosa Marques
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2010
Supervisor
Committee
Campos, Jose Roberto (President)
Damianovic, Márcia Helena Rissato Zamariolli
Teixeira, Bernardo Arantes do Nascimento
Title in Portuguese
Remoção de fósforo do líquido de descarte do desaguamento do lodo de estações de tratamento de esgoto mediante precipitação de estruvita
Keywords in Portuguese
Estruvita
Fósforo
Nutrientes
Tratamento de esgoto
Abstract in Portuguese
A presente pesquisa estudou a viabilidade do emprego de sais de magnésio em estações de tratamento de esgoto sanitário visando a remoção do fósforo, bem como a produção de estruvita, mineral que pode ser utilizado diretamente no solo como fertilizante. As estações estudadas nesta pesquisa foram a Estação de Tratamento de Esgoto Sanitário de Franca-SP e a Estação de Tratamento de Esgoto Sanitário Jardim das Flores, localizada no município de Rio Claro-SP, e a Estação de Tratamento de Esgoto Sanitário Piçarrão, no município de Campinas. No caso da ETE Jardim das Flores (Rio Claro-SP), observou a possibilidade do emprego de sais de magnésio para se remover fósforo no efluente dos reatores UASB. Com ensaios de Jar-Test, atingiu-se cerca 49% de remoção de fosfato na amostra precipitada por gravidade e cerca de 90% na amostra centrifugada. No caso da ETE-Franca-SP, constatou-se, apesar do emprego de sais de magnésio não ter sido viável, verificou-se os benefícios do emprego de cloreto férrico em estações de tratamento de esgoto sanitário.
Title in English
Phosphorus removal from sludge water discharge of wastewater treatment plants by struvite precipitation
Keywords in English
Nutrients
Phosphorus
Struvite
Wastewater treatment
Abstract in English
The present research studied the use of magnesium salts to remove phosphorus. With the phosphorus removal, magnesium salts, produce, as well, struvite, mineral that can be use directly on soil as fertilizer. The wastewater treatment plants objects of studies in this research was Wastewater Treatment Plant of Franca (SABESP) city Wastewater Treatment Plant of Jardim das Flores (Foz do Brasil), at Rio Claro city, and Wastewater Treatment Plant of Piçarrão (SANASA), at Campinas city. All three WWTP's are at São Paulo state, Brazil. In WWTP Jardim das Flores/Foz do Brasil (Rio Claro-SP), the results shown the viability of magnesium salts use at effluent of UASB reactors. In Jar-test essays, the phosphorus removal reached among 49% and in centrifuged samples, phosphorus removal was among 90%. In WWTP Franca-SP/SABESP, the results shown the benefits of iron salts in wastewater treatment.
 
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LucVercosa.pdf (4.46 Mbytes)
Publishing Date
2011-02-22
 
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