Salinization and pollution of water table with wastewater and its impact on oasis crops | Zendy

Laradj Samia Benguergoura | Zendy; Boualem Rémini | Zendy

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Salinization and pollution of water table with wastewater and its impact on oasis crops

Author(s) -

Laradj Samia Benguergoura,

Boualem Rémini

Publication year - 2016

Publication title -

african journal of agricultural research

Language(s) - English

Resource type - Journals

ISSN - 1991-637X

DOI - 10.5897/ajar2015.10480

Subject(s) - brackish water , water table , environmental science , wastewater , salinity , water quality , groundwater , sewage , total dissolved solids , hydrology (agriculture) , soil salinity , environmental chemistry , soil water , environmental engineering , geology , chemistry , soil science , ecology , oceanography , geotechnical engineering , biology

The ancestral canal of Oued Righ at 150 km evacuates leachate water into the Chott Melghir, which has 50 oases. Excess water from discharges of sewage and drainage causes upwelling of groundwater that leads to an imbalance in the valley. The physico-chemical analysis of canal waters and water table has shown that the quality of these waters has very high salinity (class C5), with electrical conductivity of 26.30 ms/cm, and SAR> 28 (S4 class). Water hardness, the values of organic matter (O.M) and total solids (T.S) are very important. Thus, canal water has very poor quality, charged with mineral salts, and is a brackish water containing sodium chloride facies.

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