2008
DOI: 10.1590/s0100-40422008000500054
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Remoção do íon amônio de águas produzidas na exploração de petróleo em áreas offshore por adsorção em clinoptilolita

Abstract: Recebido em 12/6/07; aceito em 30/8/07; publicado na web em 2/4/08 REMOVAL OF AMMONIUM IONS FROM WATERS PRODUCED IN PETROLEUM OFFSHORE EXPLOITATION BY ADSORPTION ON CLINOPTILOLITE:This work describes the use of clinoptilolite for removal of ammonium ions present in waters produced at the Campos' Basin. Samples were previously treated in order to remove organic compounds and metals. Experiments were run in fixed-and fluidized-bed systems, at room temperature. The fluidized-bed systems did not remove efficiently… Show more

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Cited by 11 publications
(7 citation statements)
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“…However, they disagree with Lima et al (2008) + ion for the exchange sites, thus the ammonia prevented the adsorption of potassium by competition for exchange sites. This fact takes greater importance when evaluating the work of Roque et al (2011) and Maia et al (2010), when employing the same concentrations of zeolite studied.…”
Section: Resultsmentioning
confidence: 87%
See 1 more Smart Citation
“…However, they disagree with Lima et al (2008) + ion for the exchange sites, thus the ammonia prevented the adsorption of potassium by competition for exchange sites. This fact takes greater importance when evaluating the work of Roque et al (2011) and Maia et al (2010), when employing the same concentrations of zeolite studied.…”
Section: Resultsmentioning
confidence: 87%
“…Among the fecal odor reducers, those that stand out are the Yucca schidigera extract (Lowe and Kershaw, 1997) and zeolite (Çabuk et al 2004), which have distinct action mechanisms. The Yucca schidigera acts on the inhibition of urease, a bacterial enzyme related to the degradation of urea into ammonia in the environment, acting on the microbiota and binding with ammonia (Cheeke, 1999).…”
Section: Introductionmentioning
confidence: 99%
“…Ammoniacal nitrogen (AN), found in NH 4 + and NH 3 forms, is present in high concentrations in several types of effluents, such as domestic sewage, landfill leachate, and produced water from oil extraction. [ 1–3 ] This compound is a pollutant of great concern, since it is related to reduced oxygen levels (eutrophication), increased the toxicity to living organisms, conversion of AN to N 2 O during the denitrification process, and formation of chloramine through reaction between AN and chlorine, hampering water disinfection. [ 1–5 ] Resolution 430/2011 from Brazil's National Environmental Council (CONAMA) (Brazil [ 6 ] ) establishes a maximum limit of 20 mg L −1 of AN of effluents discharged in receiving water bodies, while CONAMA Resolution 357/2005 (Brazil [ 7 ] ) establishes a maximum limit of 3.7 mg L −1 of AN (pH 7.5) for discharge into Class I fresh water.…”
Section: Introductionmentioning
confidence: 99%
“…De acordo com Lima et al, (2008), a quantidade de água produzida associada ao óleo sofre uma grande variação, podendo um campo novo produzir de 5 a 15% de volume de água e, ao longo do tempo esses números podem ser ainda maiores atingindo em torno de 75 a 90% de volume. Segundo Breese (1994), a diatomita é uma matéria prima mineral de origem sedimentar e biogênica, formada a partir do acúmulo de carapaças de algas diatomáceas que foram se fossilizando, desde o período pré-cambriano, pelo depósito de sílica sobre a sua estrutura.…”
Section: Introductionunclassified