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Details van artikel 76 van 93 gevonden artikelen
| Titel: |
REUSE AND DISPOSAL ADEQUACY OF RESIDUE FROM CHEMICAL DELINTING OF COTTON SEEDS |
| Auteur: |
Leda Veronica Benevides Dantas Silva Vera Lúcia Antunes de Lima José Dantas Neto Valdinei Sofiatti |
| Verschenen in: |
Engenharia ambiental |
| Paginering: | Jaargang 5 (2008) nr. 2 pagina's 53-62 |
| Jaar: |
2008 |
| Inhoud: |
The objective of this work was to develop a methodology to treat the effluent from the process of chemical delinting of cotton seeds, enabling the circumvention of its acidity, in order to meet the determinations of CONAMA Resolution 357/2005, minimizing the impacts of its disposal in the environment and enabling the reuse. To neutralize the waste, there were two tests. In the test I have been evaluated concentrations of 0.0, 0.7, 1.0, 2.0, 4.0 and 8.0% of virgin lime residue by delinting period of 18 hours. From these results the test took place II, which consisted of adopting intermediate concentrations between the two predetermined in the test I, in two days of exposure (18 and 48 hours) for more precise definition of dose and time of the neutralization be used. The results indicated that the use of virgin lime in doses of 2.5%, for 48 hours, was effective for the neutralization of chemical delinting residue of cotton seed raising its pH to the range considered acceptable for the launch of effluents by CONAMA Resolution 357/2005. The electrical conductivity of the neutralized waste is in the range that allows its use in irrigation of crops with tolerance to salinity, since diluted with water of better quality. |
| Uitgever: |
Environmental Engineering Course / UNIPINHAL (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 76 van 93 gevonden artikelen
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