[article]
| Titre : |
Enter the root-zone : green technology for the leather manufacturer : Part 3 |
| Type de document : |
texte imprimé |
| Auteurs : |
Richard Daniels, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 85-88 |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Eau -- Epuration -- Traitement biologique
Eaux usées -- Epuration
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 : |
The root zone of certain reeds can be used to remove the COD from tannery effluents to levels expected of conventional biological treatment. Moreover, performance can be enhanced to reduce the area requirements, and provide a robust, low cost, manageable and effective treatment system. These aspects were presented in parts 1&2, World Leather June/July & August/September 2001, respectively.
Although the main potential for the technology is for the biological treatment of effluent, there are other possible applications in both effluent treatment and dewatering. These are discussed in Part 3, together practicalities, costings, and benefits to the leather sector. |
| Note de contenu : |
- ROOT-ZONE APPLICATIONS IN THE LEATHER AND OTHER INDUSTRIAL SECTORS : Support for badly performing activated sludge treatment systems - Polishing treatment - Biological treatment of volatiles - Dewatering high strength/low volume discharges - Dewatering sludges - Applications in other industrial sectors
- PRACTICALITIES AND COSTINGS
- Fig. 13 : 3-stage reedbed. Presidency Kid Leather, India. The construction is over engineered to ensure security of performance and information. The effluent is classified as difficult, being similar to Pearce-Pebody composition.
- Fig. 14 : Simple construction. Impermeable plastic linings supported by earth banks, using coarse sand as a medium, provide a very low cost arrangement. Although the tannery effluent is a typical mix from chrome and vegetable tanning, the salt content is very high @10,000 mg/l due to natural brackish groundwater.
- Fig. 15 : High energy consumption. Many configurations are possible to provide the oxygen and continuous effluent movement demanded by the activated sludge process. The aerators require high energy input, and the technology needs careful management and control. Odour, aerosol effects and high volume sludges accompany this visually intrusive technology.
- Fig. 16 : Aggressive but elegant technology. Harsh industrial environments are softened by this ultimate green technology. Other benefits include butterflies, birds and tranquility. Surely better than the conventional high cost/high tech option. |
| En ligne : |
https://drive.google.com/file/d/1rbs-GFEtZM7dhPVgpbRMlDPt_8qMSMhM/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32178 |
in WORLD LEATHER > Vol. 14, N° 6 (10/2001) . - p. 85-88
[article]
|
Aller sur edunet
Accueil
Enter the root-zone : green technology for the leather manufacturer in WORLD LEATHER, Vol. 14, N° 6 (10/2001)
