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Master's Dissertation
DOI
10.11606/D.75.2009.tde-11032010-111423
Document
Author
Full name
Maykel Douglas Marchetti
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2009
Supervisor
Committee
Rezende, Maria Olimpia de Oliveira (President)
Azevedo, Eduardo Bessa
Machado, Ana Marta Ribeiro
Title in Portuguese
Tratamento de águas subterrâneas contaminadas com BTEX utilizando processo oxidativo de Fenton
Keywords in Portuguese
BTEX
Fenton
Oxidação avançada
Abstract in Portuguese
Há décadas enfrentamos as conseqüências causadas por atitudes poluidoras. Contudo, atualmente a preocupação ambiental aumentou devido aos efeitos potencialmente nocivos sobre a saúde humana, economia e meio ambiente.
A contaminação do solo e das águas subterrâneas por compostos orgânicos voláteis é um problema que está se espalhando com rapidez, e uma das principais fontes poluidoras é o vazamento de tanques de armazenamento de combustível em auto-postos. A problemática desta contaminação é agravada tendo em vista que compostos tóxicos de solubilidade considerável em água, tais como BTEX, estão presentes nessa contaminação.
Atualmente são utilizados métodos de tratamento, tais como a aeração, que apenas acabam transferindo os compostos orgânicos tóxicos da água para a atmosfera. O Processo Oxidativo Avançado de Fenton mostra-se promissor no tratamento de tais contaminações.
Nossos objetivos foram testar o processo oxidativo e melhorar suas condições de aplicação, bem como projetar um equipamento capaz de realizar o processo de maneira automática.
No presente trabalho, o POA mencionado mostrou-se eficiente e capaz de mineralizar os poluentes, reduzindo a poluição a níveis satisfatórios. As caracterizações foram feitas através de cromatografia gasosa, análise de metais através de espectroscopia de emissão por plasma e análise do carbono orgânico total.
Title in English
Treatment of groundwater contaminated with BTEX using the Fenton oxidative process
Keywords in English
Advanced oxidative process
BTEX
Fenton
Abstract in English
From decades, the consequences caused by laid-back attitude towards environment are confronting people. However, currently, the environmental concerned was raised because of the potentially harmful effects on human health, economy and on the environment itself.
The problem of soil and subterranean water contamination by volatile organic compounds is rapid spreading; being on of the main pollutant fount the leak of the fuel housing on the gas stations. This problem aggravates once toxic compounds which have considerable solubility on water, such as BTEX, are on this contamination.
Currently, treatment methods are employed, such as aeration, which only transfers the toxic organic compounds from water to atmosphere. The Fenton advanced oxidative process manifests as a promising treatment of these contaminations.
Our purpose was to test the oxidative process and improve the applicability conditions as well as project equipment able to accomplish the process on an automatic way.
On this work the POA manifests efficient and able to mineralize the pollutants, decreasing the pollution to a satisfactory level. The characterization were made through gas chromatographic, the metal analyses were made by plasma emission spectroscopy and analysis of total organic carbon.
 
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Publishing Date
2010-08-17
 
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