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Evens E mmanuel, Martine E Mathieu, Pierre M. Samson, Elmyre Clervil Université Quisqueya

62th Annual Meeting of the Southeastern GSA 20 – 21 March 2013 – San Juan, Puerto Rico. Efficiency of Zea mays L . in the retention of nutrients in the interstitial water from Port-au-Prince dredged sediments. Evens E mmanuel, Martine E Mathieu, Pierre M. Samson, Elmyre Clervil

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Evens E mmanuel, Martine E Mathieu, Pierre M. Samson, Elmyre Clervil Université Quisqueya

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  1. 62th Annual Meeting of theSoutheastern GSA 20 – 21 March 2013 – San Juan, Puerto Rico Efficiency of Zeamays L. in the retention of nutrients in the interstitial water from Port-au-Prince dredged sediments EvensEmmanuel, Martine E Mathieu, Pierre M. Samson, Elmyre Clervil Université Quisqueya BP 796, Port-au-Prince, HAITI e-mail: evens.emmanuel@gmail.com

  2. Wastewater management in Haiti Direct discharge in Aquaticecosystems Jeopardise the bilogical equilibrium of ecosystems : loss of aquaticbiodiversity R I S K S Humanhealth ecological Economicalumbalance

  3. Port-au-Prince Urbanwastewater 3 2 1 5 4

  4. UrbanWastewatercharacterization

  5. Dredged sediments disposal Dredged sediments from drainage channel of Port-au-Prince The bay ecosystems of Port-au-Prince

  6. Ecotoxicological approach for management of dredging sediments Daphniamagna Pseudokirchneriellasubcapitata Ecotoxicity tests Phyto toxicity test Brachydaniorerio

  7. Ecohydrological approach The ecohydrology of an area or region is determined by climate, geomorphology, plant cover/biota dynamics and anthropogenic modifications. By understanding these factors, the potential exists for the application of Phytotechnologies to increase plant biomass and to regulate nutrients and water dynamics, thereby increasing ecosystem carrying capacity, resilience and functionality. This can lead to significant improvements in water quality, enhanced biodiversity, improved agricultural production, potential bioenergy generation, and remediation of degraded ecosystems (SANTIAGO-FANDINO and NEATE, 2002)

  8. Ecohydrological approach for management of dredging sediments Terrestrial ecohydrology approaches, based on phytotechnology, are mostly used to reduce and manage hazards or risks linked to contaminated sediments. Phytotechnology

  9. Materials and methods 3 samples of sediments from the drainage channel 1 sample of pilot soil from an agricutural farm Use of Zeamays L., (gramineaefamily) A2 A3 A1

  10. Experimentalimplementation Chemicalcharacterization of the interstitial water of dredged sediments (Nitrates, phosphate, NH3.. Chemical analysis of pilot soil, Physical characterization of plants (diameter and H cm) Chemical characterization of plants (N and P)

  11. Phosphate values in interstitial water of dredged sediments

  12. Physicalparameters of plants A.- After one month

  13. B.- Observations at the end of experimentation

  14. N and P in Zeamays L.

  15. Conclusion The measured physical parameters reveal that corn samples raised in the sediments had a better growth than those in the pilot soil from agricultural farm. The analysis of collected plants samples shows the potentialities of Zeamays L in the phytoremediation of nitrogen and phosphorus

  16. UNESCO Chair on Ecohydrology Humanities: Social Representation of Water in the population - Assessment of behavioral risk Social sciences (economics): (i) Management of shared water resources (ii) Environmental accounting of water resources Environmental Sciences: Ecotoxicology tropical and process engineering.

  17. Muchas gracias Thankyou Mercibeaucoup

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