Effects of Olive Mill Wastewater on Soil Nutrients Availability
Journal Title: International Journal of Interdisciplinary and Multidisciplinary Studies (IJIMS) - Year 2014, Vol 2, Issue 1
Abstract
Olive mill wastewater (OMW) is one of complex wastewater generated by the olive oil extraction process. It is characterized by high values of COD, BOD and phytotoxic levels of polyphenols, but also by a high amount of organic compounds and plant mineral nutrients. Therefore, OMW field spreading may represent a low cost contribution to soil amendment. Olive mill wastewater (OMW) spraying effects onto soil physico-chemicals characteristics were investigated. Three OMW doses 50, 100 and 200 m3 ha-1 year-1 were applied for ten successive years on sandy soil. The findings showed that the pH of the soil, electrical conductivity and organic matter, total nitrogen, phosphorus, sodium, and potassium soil contents increased with increased OMW supply. While, no variations were recorded in calcium and magnesium on soil contents.
Authors and Affiliations
Leïla Chaari, Nada Elloumi, Salma mseddi, Kamel Gargouri, Béchir Bourouina, Taher Mechichi, Monem Kallel
Keywords
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