Effects of Landfill Leachate application on Crops growth and Properties of a Mediterranean Sandy SoilTurki N* and Bouzid J
University of Sfax, ENIS, Laboratory of Environmental Engineering and Ecotoxicology, Street of Soukra Km 3.5, BP 1173 CP 3038, Tunisia
- *Corresponding Author:
- Nesrine Turki
University of Sfax, ENIS, Laboratory of Environmental Engineering and Ecotoxicology
Street of Soukra Km 3.5, BP 1173 CP 3038, Tunisia
Tel: 0021627340451/+21625 511 432
Fax: 216 74 66 51
Email: [email protected]
Received date: April 13, 2017; Accepted date: May 09, 2017; Published date: May 16, 2017
Citation: Turki N, Bouzid J (2017) Effects of Landfill Leachate application on Crops growth and Properties of a Mediterranean Sandy Soil. J Pollut Eff Cont 5:186. doi: 10.4176/2375-4397.1000186
Copyright: © 2017 Turki N, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Physical chemical analysis of the Bizerte’s landfill leachate showed high amounts of ammoniacal nitrogen. Its treatment with combined process of coagulation/flocculation, Fenton and powder zeolite adsorption allowed a treated effluent with low content of nitrogen. The microtoxicity of raw and treated leachate was monitored by LUMIStox and its phytotoxicity was examined by seed germination/root elongation tests using seeds of Lycopersicon esculentum, Lolium perenne, Helianthus annus and Medicago sativa. Seedlings of the three species (Lycopersicon esculentum, Helianthus annus and Medicago sativa) were grown in pots, which irrigated with treated leachate at the median effective concentration (EC50) levels, NPK fertilizer and tap water as a control. LUMIStox tests showed that combined process allowed a significant toxicity removal. Treated leachate played fertilizing effect on plants growth. An increase in median effective concentration from 18% to 25% was observed. However, raw leachate showed lower median effective concentration levels varied between 4% and 5%. Results indicated that plants receiving treated leachate and fertilizer grew better than those receiving water alone. The growth of plants with treated leachate irrigation did not differ significantly from plants treated with fertilizer. Treated Leachate irrigation also improved soil N content. Indeed, soils amended with treated leachate had more extractable N concentration in comparison with control soil.