Can vertical-flow wetland systems treat high concentrated sludge from a food industry?

3931 mots 16 pages
e c o l o g i c a l e n g i n e e r i n g 3 5 ( 2 0 0 9 ) 230–237

available at www.sciencedirect.com

journal homepage: www.elsevier.com/locate/ecoleng

Can vertical-flow wetland systems treat high concentrated sludge from a food industry? A mesocosm experiment testing three plant species
Runying Wang a,∗ , Nathalie Korboulewsky a , Pascale Prudent b , Virginie Baldy a , Gilles Bonin a a Aix-Marseille Université, Institut Méditerranéen d’Ecologie et de Paléoécologie (UMR CNRS IRD)-Diversité Fonctionnelle des Communautés Végétales, site St Jérôme, Case 421, 13397 Marseille Cedex 20, France b Aix-Marseille Université, Laboratoire Chimie Provence (UMR-CNRS) - Chimie Environnement Continental, 3 place V. Hugo, case 29, 13331 Marseille, France

a r t i c l e
Article history:

i n f o

a b s t r a c t
We performed a mesocosms experiment using a vertical-flow wetland system to treat liquid sludge in the Mediterranean region. Three common helophyte species, common reed (Phragmites australis Cav.), broadleaf cattail (Typha latifolia L.), and yellow flag (Iris pseudacorus L.), were planted as monoculture and irrigated with a liquid sewage sludge from a food industry, characterised by very high organic concentrations (COD > 8000 mg/L). We studied the benefits of plants by comparing unplanted to planted mesocosms. Results showed the high performance of such vertical-flow wetland systems. Removal efficiency was more than

Received 8 December 2007 Received in revised form 7 March 2008 Accepted 26 May 2008

Keywords: Vertical-flow wetland Sewage sludge Particulate organic matter Phragmites australis Typha latifolia Iris pseudacorus Phytopurification

98% for total suspended solids (TSS) and chemical oxygen demand (COD), and more than 87% for total Kjeldahl nitrogen (TKN). The main removal process was physical filtration by the substrate due to the high proportion of particulate elements in the sludge. Planted mesocosms were more efficient than those unplanted,

en relation

  • hello
    362 mots | 2 pages
  • Étude des associationS végétales de la Vallée des Borrels dans le cadre d'un projet de développement durable.
    4170 mots | 17 pages
  • random
    789 mots | 4 pages
  • rotab synthese regions 1
    25738 mots | 103 pages
  • Aquali
    307 mots | 2 pages
  • Jussie
    33067 mots | 133 pages
  • Ficus carica
    1553 mots | 7 pages
  • Esth2tiqk cosmetique
    259 mots | 2 pages
  • 20 10 10Clovis Et Les Francs
    2254 mots | 10 pages
  • Bts esthétique
    5091 mots | 21 pages
  • Etude de cas japon
    7897 mots | 32 pages
  • Erosion des roubines (terres noires)
    1953 mots | 8 pages
  • Etude de cas : MELVITA
    3489 mots | 14 pages
  • commentaire
    12538 mots | 51 pages
  • Classement Cotoxicologique
    989 mots | 4 pages