Comparative performance of sand and coconut substrate in urban wastewater treatment. Performances comparees du sable et du substrat de coco en traitement d’eaux residuaires urbaines

Abstract : Urban wastewater has been treated by infiltration- percolation on sand and on coconut substrate, in order to highlight their comparative performance. The pilots were fed to the hydraulic loading rate of 40 L·m-2·d-1 during three days a week and kept at rest the next four days. Parameters are measured on an average sample of 24 hours taken on the output of each pilot at the end of the third day of treatment. The average removal efficiencies of chemical oxygen demand (COD) were respectively, 94.8 and 39.61 % with the sand and the coconut substrate while the average yields of biochemical oxygen demand (BOD5) were 99.01 and 98.12 %. The results showed that the average removal efficiencies of fecal coliform bacteria were respectively, 98.8 and 91 %. Conductivities have increased by an average of 39.88 % with the sand and 4.65 % with coconut substrate.
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Article dans une revue
Chemistry & Chemical Engineering, Biotechnology, Food Industry, Scientific Study & Research, 2015, 16 (1), pp.1-12
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https://hal-sde.archives-ouvertes.fr/hal-01324869
Contributeur : Nathalie Lyvet <>
Soumis le : mercredi 1 juin 2016 - 15:33:00
Dernière modification le : mardi 19 juin 2018 - 13:32:14

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  • HAL Id : hal-01324869, version 1

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Martine Kone, Gilles Comte, Madjélia Somé, Inoussa Zongo, Pierre Joly. Comparative performance of sand and coconut substrate in urban wastewater treatment. Performances comparees du sable et du substrat de coco en traitement d’eaux residuaires urbaines. Chemistry & Chemical Engineering, Biotechnology, Food Industry, Scientific Study & Research, 2015, 16 (1), pp.1-12. 〈hal-01324869〉

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