Integrated Management and Environmental Impact Assessment of Sustainable Groundwater-Dependent Development in Toshka District, Egypt

Water, Journal Year: 2023, Volume and Issue: 15(12), P. 2183 - 2183

Published: June 9, 2023

Egypt has recently inaugurated a mega development project aiming to alleviate the overpopulation along Nile River and meet looming food gap. Toshka is promising area where groundwater-dependent activities are being expanded adjacent Lake Nasser. Thus, it of utmost importance provide sustainable approach assess resulting environmental implications. Accordingly, coupled groundwater flow transport model was invoked. The generated successfully calibrated for observed water levels salinity. proposed exploitation regime 102 wells each pumping 1000 m3/day simulated 100-year test period. maximum drawdown about 25 m, compatible with advocated restriction limit. Climate change (CC) impacts reducing lake’s storage increasing crops’ requirements were investigated. level fluctuations key factor in aquifer hydraulics direction. breakthrough considering CC catastrophic scenario (RCP8.5) increased by 20%. developed solute utilized simulate salinity spatial distribution lateral movement leaking pollutants from underway activities. Cultivation found feasible up 80 km away lake border does not exceed 2000 ppm. Yet, protection strip less than 4.8, 6.0, 7.2 according operating condition inevitable ensure that do intrude into lake. These findings will assist decision-makers scheming impact assessment criteria development.

Language: Английский

The Influence of Regional Groundwater Flow and a Neighbouring River on the Behaviour of an Aquifer Thermal Energy Storage System

Water, Journal Year: 2024, Volume and Issue: 16(4), P. 548 - 548

Published: Feb. 9, 2024

One promising solution for mitigating CO2 emissions in arid regions is to use Aquifer Thermal Energy Storage (ATES) systems cooling and heating systems. However, ATES need be subjected geohydrological investigations before their installation ensure high performance. Two properties are considered: regional groundwater flow the influence of neighbouring rivers. This study considers a hypothetical system within city Hilla, Iraq. MODFLOW 6.1 software was used simulate two properties. The simulation tested locations situated at 75 m 300 from river. Each location explored using three rates: 10 m3/d, 50 100 m3/d. results indicate that temperature change warm cold wells increases proportionally with time operation rate flow. For example, middle layer (for m3/d operation) changes 29 °C (after one year) 34 twenty years operation), while it (one 35 (twenty years) under operation. Another result available has negligible on storage system, river stored energy when distance between them or less. paper recommends least bank

Language: Английский

Complementarity of multiple in-situ techniques for spatiotemporal assessment of groundwater/surface-water exchanges

Hydrogeology Journal, Journal Year: 2024, Volume and Issue: 33(1), P. 219 - 235

Published: Dec. 19, 2024

Language: Английский