Desenvolvimento de um sistema foto-oxidativo visando aplicação no tratamento de águas produzidas em campos de petróleo
Increasing concern with the environment, in addition to strict laws, has induced the industries to find alternatives to the treatment of their wastes. Actually, the oil industry has sought solutions to overcome a big environmental problem, i.e., oil field produced water being discharged to the sea....
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| Övriga upphovsmän: | |
| Materialtyp: | doctoralThesis |
| Språk: | por |
| Publicerad: |
Universidade Federal do Rio Grande do Norte
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| Länkar: | https://repositorio.ufrn.br/jspui/handle/123456789/15914 |
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| Sammanfattning: | Increasing concern with the environment, in addition to strict laws, has induced the industries
to find alternatives to the treatment of their wastes. Actually, the oil industry has sought
solutions to overcome a big environmental problem, i.e., oil field produced water being
discharged to the sea. These effluents have organic compounds dissolved, such as polycyclic
aromatic hydrocarbons, phenols, benzene, toluene, ethylbenzene and xylenes (BTEX). These
compounds are difficult to be removed and have high toxicity. The advanced oxidation
processes - AOP are effective to degradation of these organic compounds, because they
generate hydroxyl radicals with high potential of oxidation. This work includes the reactor
photochemical development applied in the photodegradation treatment (by photo-Fenton
process) of wastewaters containing organic compounds dissolved, aiming at treatment and
recovery the oil field produced water. The studied reactor allowed the evaluation of two
ultraviolet radiation sources that is the main factor to describe the feasibility of the photo-
Fenton treatment, i.e., sun and black light fluorescent lamps, and other relevant variables the
process: concentration of reagents, irradiated area and also various reactor configurations to
maximize the use of radiation. The organic matter degradation was verified with samples
collected during the experimental and analyzed with a total organic carbon analyzer (TOC),
which expressed the results in terms of mgC/L. The solar radiation was more effective than
radiation from the lamps. It's an important factor for the operation costs cutting. Preliminary
experiments applied to oil field produced water treatment have showed satisfactory results,
reducing up to 76 % of organic matter |
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