Speaker
Description
During the last 4 years, PWEG and in collaboration with the Arava Institute for Environmental Studies (AIES), has succeeded in implementing a comprehensive low-cost and low-technological decentralized wastewater management and reuse scheme in Marj Al Ghazal village in the arid Jordan Valley (JV), improving access to non-conventional water resources. This was achieved by the construction of 11 household grey wastewater treatment plants and 11 modified septic tanks serving 47 households hosting 228 persons. Water consumption in the dry JV is above the national consumption average, amounting to 150 L/day. A total of 34,200 L/day of treated grey wastewater is reused in the irrigation of medjul date orchard 13500m2 (135 medium age trees), 2 greenhouses of 300m2 each. The saved water cost (0.25 Euro/m3) is 3,121 Euro per year. The total cost of septic tanks suction amounting to 16,000 Euro/ year, is saved. 10,800 Kg of medjul date with a total average cost of 27,340 Euro is yearly harvested thanks to the continuous availability of the treated grey wastewater. A total cost of 3,000 Euro/ year is spent on the operation and maintenance of the treatment plants. In addition, a total cost of 5,468 Euro/ year is spent on the medjul trees growing and harvesting. A net yearly profit of 37,993 Euro is made available due to the reuse of the treated grey wastewater in the whole village. An average yearly profit per household of 808 Euro is achieved. The beneficiaries’ satisfaction was tested.
Keywords: Rural, Onsite, Grey-wastewater, Environment, Socio-Economic.
