Study of influence of granulometry of cactus pear forage (Opuntia fícus) bark biomass on removal of organic contaminants in water bodies by differential bed adsorption technique / Estudo da influência da granulometria da biomassa da casca da palma forrageira (Opuntia fícus) na remoção de contaminantes orgânicos em corpos d'água por técnica de adsorção diferencial em leito
Petroleum exploration oil has caused accidents that end up contaminating environment. Adsorption process has been shown to be an effective and economical method in treatment of effluents with organic compounds. Use of biomass as adsorbent has been a potentially and economical alternative for treatme...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | Brasil |
| Recursos: | Instituto Superior de Educação Vera Cruz (VeraCruz) |
| Repositorio: | Revista Veras |
| Idioma: | inglés |
| OAI Identifier: | oai:ojs2.ojs.brazilianjournals.com.br:article/18492 |
| Acesso em linha: | https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/18492 |
| Access Level: | acceso abierto |
| Palavra-chave: | Gasoline cactus pear forage differential bed granulometry adsorption |
| Resumo: | Petroleum exploration oil has caused accidents that end up contaminating environment. Adsorption process has been shown to be an effective and economical method in treatment of effluents with organic compounds. Use of biomass as adsorbent has been a potentially and economical alternative for treatment of various types of effluents. Therefore, objective of this work was to study influence of biomass granulometry in differential bed adsorption process, using as biosorbent cactus pear forage bark (Opuntia fícus), typical species of northeastern semiarid, to remove gasoline in water bodies. Methodology used was proposed by Lima et al. (2014). Initially, biomass was prepared in particulate form in three different particle sizes (meshs 07, 10 and 18). Subsequently, experiments were performed to study adsorption kinetics, in which times from 05 to 60 minutes were evaluated and adsorption equilibrium, whose contaminant concentrations ranged from 5 to 60%. For differential bed, concentrations of 5%, 7.5% and 10% were used. Results confirmed that gasoline adsorption kinetics by biomass was fast in all granulometries, but its influence was not significant. Equilibrium isotherms also showed maximum adsorption capacity values close to each other for three particle sizes. In differential bed system, three different particle sizes presented significant adsorption capacity, and particle size, smaller than 1 mm resulted in higher contaminant adsorption. From results, it can be confirmed that cactus pear forage bark presents as an adsorbent biomass for removal gasoline present in water bodies and that small grain size variations do not significantly affect adsorption process. |
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