Full Length Research Paper

Assessment of lead content in effluent of WWTP used agriculture in the scope of market garden of Sebkha (Nouakchott, Mauritania)

Abdoulaye Demba N’diaye^1,2*, Mohamed Ould Sid’ Ahmed Ould Kankou³ and Khalid Ibno Namr ¹

¹Unit Soil Science and Environment (LGMSS- URAC45), Department of Geology, Faculty of Science- University Chouaib Doukkali PO. BOX- El Jadida 2400, Phone: 212 (0) 523 342 325/ 343 003, Morocco.
²Laboratory of Water Chemistry, Toxicological and Environmental Service, National Institute for Research in Public Health from Nouakchott, PO. Box 695, Phone number (222) 525 31 75, Mauritania.
³Laboratory of Chemistry of Water and Environment, Faculty of Science and Technology of the University of Nouakchott, PO. Box 5026, Phone number (222) 525 13 82, Mauritania.

*Corresponding Author E-mail: abdouldemba@yahoo.fr

Accepted March 16, 2013

Abstract

In order to contribute modestly to the assessment of lead content in the effluent of the WWTP in the scope of Sebkha gardener, the samples were taken at the WWTP between October and December 2011. In addition to studying the evolution of lead, electrical conductivity, chlorides, sodium and chemical oxygen demand were studied with the statistical analysis methods were applied to the results obtained. The results show that lead levels recorded at the effluent of the WWTP ranging from 104.5 µg/L and 176.5 µg/L. The statistical analysis of results shows that lead is strong and positive correltion with electrical conductivity, chloride and sodium and positively moderately correlated and significant with the Chemical Oxygen Demand.
 
Keywords: Lead, effluent, Aftout Es Sahli, Sebkha, Nouakchott, Mauritania.