Science Target Conference Systems, Ajman 4th International Environment Conference 2016

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Environmental Effects of Treated Wastewater Use in Agriculture Irrigation In Al mawaheb Area, Dhamar Governorate, Republic of Yemen
ameen yahya rageh

Last modified: 2016-01-04

Abstract


Abstract

This current study has been carried out in Dhamar Area, where the extensive use of treated wastewater for agricultural irrigation. The WWTP is located  in Al-Mawaheb. The overall objective of this study is to assess the impact of wastewater use on soils, water resources and public health. This study has revealed that the treated wastewater contains moderately saline1.7 dS/m, BOD5 of 89.4 mg/l  and high sodium bicarbonate. The soils analytical data show highly salinity, this may refer to the over quantity of wastewater use for irrigation, which exceeds the irrigation requirements by 50-80%. The groundwater and surface water samples analysis has shown that the NO3 concentration and  E.coli are higher than the WHO. Regarding the total coliform, the obtained data indicate that the treated wastewater in the area is very high up to 77 CFU/100 ml. Using the treated wastewater for irrigation has a high risk on public health. So, these negative indicators refer that the current situation of the treated wastewater usage is considered unsuitable for irrigation use. Finally, this study recommends to improve and enhance the WWTPs efficiencies in this Area.

Keywords: Agriculture, Treated wastewater, Irrigation, Contamination.