Estudo da degradação do herbicida ácido 2,4- diclorofenoxiacético (2,4-D) por meio da radiação gama do cobalto-60 em solução aquosa contendo ácido húmico
The use of pesticides in agriculture presents some problems to ecosytems as a consequence of their remaining in the environment. Conventional methods for environmental decontamination sometimes just transfer these residues from one place to another. The use of gamma radiation from cobalt-60 to induce 2,4-D degradation in aqueous solution containing humic acid was studied. Results show that the herbicide is completely degraded after treatment with a 30 kGy dose. There were decreases in the degradation of the 2,4-D when humic acid was added at all doses. Some radiolytic products are proposed. The 2,4-D radiolytic yields (G) from 2,4-D were calculated.
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| Main Authors: | , |
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| Format: | Digital revista |
| Language: | Portuguese |
| Published: |
Sociedade Brasileira de Química
2002
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422002000400003 |
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