| Titre : |
Enter the root-zone : green technology for the leather manufacturer - Part 2 : Part 2 |
| Type de document : |
texte imprimé |
| Auteurs : |
Richard Daniels, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 52-54 |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Eau -- Epuration -- Traitement biologique
Eaux usées -- Décontamination
Eaux usées -- Stations de traitements
PhytoépurationLa phytoépuration est au sens large l'épuration par les plantes. Celles-ci peuvent contribuer à épurer ou dépolluer les trois grands milieux que sont l'air, les sols et l'eau. Il s'agit d'un système de traitement des eaux utilisant des plantes (généralement plantes macrophytes), des substrats et des microorganismes au sein d'une zone humide artificielle (ou "constructed wetlands" pour les anglophones). Les systèmes de phytoépuration peuvent être composés d'un ou plusieurs filtres plantés.
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Root-zone systems utilise micro organisms hosted by the root structure of reeds to reduce the COD loading of supernatants following primary effluent treatment. In part 1 of this article (WL June/Jully 2001), these systems were described, detailling the performance and properties from pilot and large scale systems operating in the leather sector as an alternative to the activated sluge treatment process. However, the technology can be improved by a combinaison of good managemment and under-bed recirculation of effluent. Part 2 discusses the findings from systems where performance has been enhanced, and the potential of these systems as an alternative to the conventional biological treatment of tannery effluents. |
| Note de contenu : |
- ENHANCED ROOT-ZONE PERFORMANCE : Performance as a function of retention time - The effects of maturity - Summmer/winter performance - The rate of cod removal in 1-day system - The effects of closedown
- THE ROLE OF ENHANCED SYSTEMS
- ALTERNATIVE TO ACTIVATED SLUDGE TREATMENT
- Fig. 9 : 3-stage pilot plant. Basic root-zone pilot plant used for basic research and assessing a variety of configurations. This system is 30 months old and shows no signs of solids build-up despite continous heavy operation.
- Fig. 10 : Intermediate scale plant. Part of a newly planted system being a precursor to a full scale 1-day root-zone installation
- Fig. 11 : Seasonal performance and the effects of maturity. Enhanced root-zones operating with shorter retention times take longer to reach peak performance. When mature, they then match 5-day performance through summer-winter cycles
- Fig. 12 : Voracious Technology. Neoline mature root-zones have very aggressive appetites. Almost all of the COD removed as shown in these four examples of 1-day performance is removed in the first 6 hours |
| En ligne : |
https://drive.google.com/file/d/1Xn4cnvcSXZR1Pq_xOaG5YxoU8bGxM4fw/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32163 |
in WORLD LEATHER > Vol. 14, N° 5 (08-09/2001) . - p. 52-54
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Enter the root-zone : green technology for the leather manufacturer - Part 2 in WORLD LEATHER, Vol. 14, N° 5 (08-09/2001)
