Obtenção de carvão ativado a partir da tripa de celulose proveniente da produção de salsicha
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Data
2023
Orientador
Borsoi, Cleide
Banca
Hoehne, Lucélia
Catto, André Luis
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Resumo
Devido ao crescimento da geração do resíduo de tripa de celulose, proveniente do processamento da salsicha, atrelado ao crescente mercado desta área, diferentes estudos vêm sendo desenvolvidos com o intuito de reaproveitamento deste material. Dentre estas possibilidades está a sua utilização como matéria-prima para obtenção de carvão ativado, pois é o material mais utilizado no processo de adsorção tornando-o vantajoso devido ao seu baixo custo. Neste contexto, o presente trabalho teve como objetivo a obtenção e caracterização do carvão ativado a partir de resíduos da tripa de celulose oriundas do processo produtivo de salsichas. Desta forma o material, previamente limpo, foi submetido à ativação com ácido fosfórico (H3PO4) ou hidróxido de sódio (NaOH), seguido por pirólise a 350 °C com 200 mL.min-1 de gás nitrogênio (N2) em mufla de pirólise. A caracterização do material adsorvente foi realizada por meio das análises de rendimento, microscopia eletrônica de varredura (MEV) e espectroscopia de raios X por dispersão em energia (EDS). Os ensaios de adsorção avaliados foram a otimização do pH, efeito da concentração do adsorvente e a capacidade de adsorção dos materiais obtidos utilizando o corante azul reativo 198, comparando com um carvão ativado comercial. De acordo com os resultados das análises morfológicas, o carvão ativado obtido apresentou tamanhos irregulares e morfologia uniforme. Com relação aos ensaios de adsorção, a melhor condição de pH foi de 5,65 e a concentração do adsorvente de 0,5 mg.L-1, para o carvão ativado com H3PO4. Desta forma, a utilização do carvão ativado obtido a partir do resíduo da tripa de celulose se torna vantajoso ne remoção do corante azul reativo, visto que apresentou uma remoção de 59,92% para o carvão ativado CAF e 38,67% para o carvão ativado com CHS. Com isso, conclui-se que a tripa de celulose se torna vantajosa na remoção do corante azul reativo, sendo uma alternativa viável para a destinação deste resíduo, visando agregar valores ao mesmo e reduzir os custos de descarte e de danos ao meio ambiente.
Due to the growth in the generation of cellulose casing waste from sausage processing, linked to the growing market in this area, different studies have been developed with the aim of reusing this material. Among these possibilities is its use as a raw material for obtaining activated carbon, as it is the most used material in the adsorption process, making it advantageous due to its low cost. In this context, the present work aimed to obtain and characterize activated carbon from cellulose casing residues derived from the sausage production process. Thus, the previously cleaned material was subjected to activation with phosphoric acid (H3PO4) or sodium hydroxide (NaOH), followed by pyrolysis at 350 °C with 200 mL.min-1 of nitrogen gas (N2) in a pyrolysis muffle. The characterization of the adsorbent material was performed using yield analysis, scanning electron microscopy (SEM) and energy dispersion X-ray spectroscopy (EDS). The adsorption tests evaluated were pH optimization, effect of adsorbent concentration and the adsorption capacity of materials obtained using the reactive blue dye 198, compared with a commercial activated carbon. According to the results of the morphological analyses, the activated charcoal obtained showed irregular sizes and uniform morphology. Regarding the adsorption tests, the best pH condition was 5.65 and the adsorbent concentration was 0.5 mg.L-1, for carbon activated with H3PO4. In this way, the use of activated carbon obtained from the residue of the cellulose casing becomes advantageous in the removal of the reactive blue dye, since it presented a removal of 59.92% for activated carbon CAF and 38.67% for carbon activated with CHS. With this, it is concluded that the cellulose casing becomes advantageous in the removal of the reactive blue dye, being a viable alternative for the destination of this residue, aiming to add values to it and reduce the costs of disposal and damage to the environment.
Due to the growth in the generation of cellulose casing waste from sausage processing, linked to the growing market in this area, different studies have been developed with the aim of reusing this material. Among these possibilities is its use as a raw material for obtaining activated carbon, as it is the most used material in the adsorption process, making it advantageous due to its low cost. In this context, the present work aimed to obtain and characterize activated carbon from cellulose casing residues derived from the sausage production process. Thus, the previously cleaned material was subjected to activation with phosphoric acid (H3PO4) or sodium hydroxide (NaOH), followed by pyrolysis at 350 °C with 200 mL.min-1 of nitrogen gas (N2) in a pyrolysis muffle. The characterization of the adsorbent material was performed using yield analysis, scanning electron microscopy (SEM) and energy dispersion X-ray spectroscopy (EDS). The adsorption tests evaluated were pH optimization, effect of adsorbent concentration and the adsorption capacity of materials obtained using the reactive blue dye 198, compared with a commercial activated carbon. According to the results of the morphological analyses, the activated charcoal obtained showed irregular sizes and uniform morphology. Regarding the adsorption tests, the best pH condition was 5.65 and the adsorbent concentration was 0.5 mg.L-1, for carbon activated with H3PO4. In this way, the use of activated carbon obtained from the residue of the cellulose casing becomes advantageous in the removal of the reactive blue dye, since it presented a removal of 59.92% for activated carbon CAF and 38.67% for carbon activated with CHS. With this, it is concluded that the cellulose casing becomes advantageous in the removal of the reactive blue dye, being a viable alternative for the destination of this residue, aiming to add values to it and reduce the costs of disposal and damage to the environment.
Descrição
Palavras-chave
Carvão ativado; adsorção; tripa de celulose; resíduo industrial; Activated carbon; adsorption; cellulose casing; industrial waste
Citação
MARTINI, Adriana Andréia Schuster. Obtenção de carvão ativado a partir da tripa de celulose proveniente da produção de salsicha. 2023. Monografia (Graduação em Engenharia Química) – Universidade do Vale do Taquari - Univates, Lajeado, 04 jul. 2023. Disponível em: http://hdl.handle.net/10737/3783.