Removal and recovery of phenol from FCC effluent

Kojima, Toshinori; Nishijima, K.; Matsukata, Masahiko

doi:10.1016/0376-7388(94)00242-q

Cited by 32 publications

(16 citation statements)

References 6 publications

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“…Os efluentes de plantas industriais, tais como coquearias, refinarias de petróleo e produtoras de resinas, entre outros, freqüen-temente contêm compostos fenólicos 10 . As coquearias são responsáveis pela produção de gás e coque para aplicações metalúrgicas e outros produtos como benzeno, tolueno, antraceno e naftaleno, que apresentam inúmeras aplicações industriais e comerciais 11 .…”

Section: A Origem Dos Compostos Fenólicos Nos Efluentes Industriais Eunclassified

“…Ao serem dispostos em cursos de água, estes efluentes causam sérios problemas ambientais 11 . No caso das refinarias de petróleo, o craqueamento catalítico em leito fluidizado gera efluentes contendo concentrações consideráveis de fenol (50-260 ppm massa) e concentrações compará-veis de íons sulfeto e amônia 10 . Por outro lado, na indústria petroquímica, as unidades de pirólise produzem etileno a partir do craqueamento térmico da nafta a temperaturas superiores a 1000 ºC, em presença de vapor d'água.…”

Section: A Origem Dos Compostos Fenólicos Nos Efluentes Industriais Eunclassified

“…As principais tecnologias convencionais empregadas no abatimento de fenol em efluentes industriais são: o tratamento biológi-co, os processos de extração, o tratamento com carvão ativado, os processos térmicos, o arraste com ar ou a osmose reversa 1,10 . No que diz respeito ao tratamento biológico, a tecnologia de lodo ativado é amplamente utilizada, especialmente em centrais de tratamento de efluentes industriais 10,18 .…”

Section: Processos De Tratamento De Efluentesunclassified

“…No que diz respeito ao tratamento biológico, a tecnologia de lodo ativado é amplamente utilizada, especialmente em centrais de tratamento de efluentes industriais 10,18 . O método consiste na degradação de compostos orgânicos em tanques de lodo, com sistemas biológicos aeróbicos e anaeróbicos, monitorando-se continuamente a temperatura, a demanda química de oxigênio (DQO) e os contaminantes a serem degradados.…”

Section: Processos De Tratamento De Efluentesunclassified

“…O processo apresenta, entretanto, a desvantagem de exigir uma etapa de regeneração, durante a qual o contaminante é concentrado na fase vapor. Além disso, o processo de adsorção não resolve o problema ambiental, uma vez que o resíduo gerado, freqüentemente, deve ser disposto no meio ambiente 6,10,20 . Os tratamentos térmicos são os processos mais comuns e amplamente usados na remediação de águas contaminadas por compostos voláteis e podem envolver as operações de arraste com ar ou de extração 19 .…”

Section: Processos De Tratamento De Efluentesunclassified

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Processos avançados de oxidação de compostos fenólicos em efluentes industriais

Britto¹,

Rangel²

2008

Quím. Nova

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Section: A Origem Dos Compostos Fenólicos Nos Efluentes Industriais Eunclassified

Section: Processos De Tratamento De Efluentesunclassified

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Processos avançados de oxidação de compostos fenólicos em efluentes industriais

Britto¹,

Rangel²

2008

Quím. Nova

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Linearized and non-linearized isotherm models comparative study on adsorption of aqueous phenol solution in soil

Balaji

Das

2009

Int. J. Environ. Sci. Technol.

122

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ABSTRACT:Use of native soil in adsorption of phenol from industrial wastewater has been one of the attractive option for dephenolation, especially in view of low cost and ease in accessibility, as well as scope for regeneration (or, at least reuse). However, an effective usage of the adsorbent necessitates a deeper understanding of the adsorption characteristics. Most of the study of adsorption characteristics are confined to analysis of mono-and bi-parametric isotherm models (and rarely, linearized multi-parametric isotherm models), due to the difficulties in solving higher parametric models, as well as fairly satisfying results by lower-parametric models. In the present study, adsorption batch studies were carried out using a naturally and widely available common soil of south India (namely, Adhanur soil), for removal of phenol from the aqueous solution, with an explicit objective of comparison of linear and non-linear regression methods for finding variation in isotherm coefficients and fitness of the models. Six linearized isotherm models (including four linearized Langmuir models) and three non-linear isotherm model were discussed in this paper, and their coefficients were estimated. Although all the studied isotherm models showed fairly good fit to the experimental data, but Redlich-Peterson isotherm was found to be the best representative for phenol-sorption on the used soil adsorbent. Besides, it was observed that to determine the isotherm parameters non-linear isotherm models were found to be the best representative of adsorption characteristics, than their linearized counter-parts.

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Effect of different acclimation methods on the performance of microbial fuel cells using phenol as substrate

Song

Zhou

2013

Bioprocess Biosyst Eng

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Single-chamber microbial fuel cells (MFCs) with air-cathode were constructed. MFCs were fed different feedstocks during their inoculation, their role on phenol degradation and MFC performance were investigated. The results showed that the MFC inoculated using glucose exhibited the highest power density (31.3 mW m(-2)) when phenol was used as the sole substrate for MFC. The corresponding biodegradation kinetic constant was obtained at 0.035 h(-1), at an initial phenol concentration of 600 mg L(-1). Moreover, the phenol degradation rates in this MFC with closed circuit were 9.8-16.5% higher than those in MFC with opened circuit. The cyclic voltammograms revealed a different electrochemical activity of the anode biofilms in the MFC, and this led to differences in performance of the MFCs with phenol as sole substrate. These results demonstrated that phenol degradation and power production are affected by current generation and type of acclimation.

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Removal and recovery of phenol from FCC effluent

Cited by 32 publications

References 6 publications

Processos avançados de oxidação de compostos fenólicos em efluentes industriais

Processos avançados de oxidação de compostos fenólicos em efluentes industriais

Linearized and non-linearized isotherm models comparative study on adsorption of aqueous phenol solution in soil

Effect of different acclimation methods on the performance of microbial fuel cells using phenol as substrate

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