Abuzaid, A.S. 2016. Sewage effluent as an alternative source for irrigation: Impact on soil properties and heavy metal status. Annals of Agric. Sci., Moshtohor, 54(2): 387-396.
Annals of Agricultural Sciences, Moshtohor • 2016
معلومات البحث
المؤلفون
A S Abuzaid
الكلمات المفتاحية
Sewage effluent; Soil properties; Heavy metals; Soil pollution
المجلة العلمية
Annals of Agricultural Sciences, Moshtohor
الناشر
Faculty of Agriculture, Benha University, Egypt
المجلد
54
العدد
2
الصفحات
387-396
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
Sewage irrigation may provide an alternative resource due to scarcity of fresh water in Egypt, thus such a practice should be evaluated. A number of 36 pairs of soil samples were collected; each pair consisted of one sample irrigated with fresh water and another irrigated with sewage water from two different sites in Al-Qalyubia Governorate, Egypt. Sewage water-irrigated soils showed higher pH, EC, N, P, K, Fe Mn, Zn, Cd, Pb and Ni than fresh water-irrigated soils. Positive changes in soil properties occurred with sewage irrigation. Bulk density decreased field capacity, organic carbon and nutrients increased by sewage water irrigation. There was build-up in Cd, Pb, Ni and Zn. Single pollution index (SPI) and pollution load index (PLI) indicated none pollution in fresh water irrigated soils as both parameters did not exceed 1.0. Sewage irrigated soils were moderately polluted. The contamination factor (CF) revealed a considered contamination with Pb and high for Cd, Ni and Zn. The contamination degree was very high. Food crops cultivation in such soils should be practiced under precautions with a change in the cropping pattern.
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