Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware
<abstract language="eng">In this paper, we present procedures for the treatment and final disposal of residual solutions containing chromium, in order to evaluate the effectiveness of chemical precipitation of the metal and the potential of the glass encapsulation technique, using br...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2008-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000300035 |
| _version_ | 1811319752895758336 |
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| author | Juliana Graciela Giovannini Glauco Arnold Tavares José Albertino Bendassolli |
| author_facet | Juliana Graciela Giovannini Glauco Arnold Tavares José Albertino Bendassolli |
| author_sort | Juliana Graciela Giovannini |
| collection | DOAJ |
| description | <abstract language="eng">In this paper, we present procedures for the treatment and final disposal of residual solutions containing chromium, in order to evaluate the effectiveness of chemical precipitation of the metal and the potential of the glass encapsulation technique, using broken laboratory glassware. The results demonstrated that pH-values convenient for chemical precipitation are between 10 - 11. With regard to Cr(OH)3 encapsulation, the leaching and solubilization tests allowed to classify the waste as non-dangerous and non-inert. Finally, it is pointed out that the adoption of waste management practices in universities should be encouraged, helping to train professionals skilled in good laboratory practices. |
| first_indexed | 2024-04-13T12:48:06Z |
| format | Article |
| id | doaj.art-1598ad59760748489ba02422fa0e1cc9 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-04-13T12:48:06Z |
| publishDate | 2008-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-1598ad59760748489ba02422fa0e1cc92022-12-22T02:46:18ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642008-01-0131367667910.1590/S0100-40422008000300035Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glasswareJuliana Graciela GiovanniniGlauco Arnold TavaresJosé Albertino Bendassolli<abstract language="eng">In this paper, we present procedures for the treatment and final disposal of residual solutions containing chromium, in order to evaluate the effectiveness of chemical precipitation of the metal and the potential of the glass encapsulation technique, using broken laboratory glassware. The results demonstrated that pH-values convenient for chemical precipitation are between 10 - 11. With regard to Cr(OH)3 encapsulation, the leaching and solubilization tests allowed to classify the waste as non-dangerous and non-inert. Finally, it is pointed out that the adoption of waste management practices in universities should be encouraged, helping to train professionals skilled in good laboratory practices.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000300035wasteschromiumencapsulation |
| spellingShingle | Juliana Graciela Giovannini Glauco Arnold Tavares José Albertino Bendassolli Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware Química Nova wastes chromium encapsulation |
| title | Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware |
| title_full | Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware |
| title_fullStr | Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware |
| title_full_unstemmed | Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware |
| title_short | Avaliação das técnicas de precipitação química e encapsulamento no tratamento e destinação conjunta de resíduos líquidos contendo cromo e vidrarias de laboratório Evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware |
| title_sort | avaliacao das tecnicas de precipitacao quimica e encapsulamento no tratamento e destinacao conjunta de residuos liquidos contendo cromo e vidrarias de laboratorio evaluation of chemical precipitation and encapsulation techniques in the treatment and joint disposal of liquid wastes containing chromium and laboratory glassware |
| topic | wastes chromium encapsulation |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000300035 |
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