Integrated application of remote sensing and geoelectrical techniques for wastewater percolation mapping at the northern part of Badr city, Egypt

Document Type : Original Article

Authors

1 Zagazig University, Faculty of Science, Geology Department, 44519, Zagazig, Egypt

2 National Research Institute of Astronomy and Geophysics, NRIAG, 11421 Helwan, Egypt

3 Zagazig University, Faculty of Science, Geology Department, 44519, Zagazig, Egypt National Authority for Remote Sensing and Space Sciences

Abstract

Water-logging appearance in new urban areas has become one of the most environmental hazards. The purpose of this research is to understand the wastewater flow paths in desert lands. As a case study, the wastewater leakage problem in the northern part of Badr City, Egypt was investigated by applying remote sensing (RS) and direct current (DC) resistivity techniques. Regarding local geological conditions, the relation between subsurface structures, surface topography, and wastewater leakage appearance was delineated. Modern GIS techniques were used to represent wetlands, streams, drainage networks, elevation, surface ponds, and other features. DC resistivity survey in the form of vertical electrical sounding (VES) was conducted to get an overview of the distribution of subsurface layers and structures (faults) considering the borehole and surface geological data. As a result, the general slopes, subsurface structure, and near-surface layers distribution play an important role in water seepage and water-logging on the ground surface. This study answers the question regarding the correlation between water-logging and surface/subsurface factors that control wastewater flow paths in desert lands. Further studies are needed to establish causal relationships and develop preventative measures.

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