Hydrogeological analysis of water harvesting wells in Eslamshahr county in terms of Sand production

Document Type : علمی -پژوهشی

Authors

1 Faculty of New Sciences and Technologies, University of Tehran

2 Faculty of New Energies and Environment, Islamic Azad University

Abstract

Sand production event has known as an adventure risk in well drilling and provide drinking water in areas with alluvial geology and fine soil texture. In this regard, this study aimed to evaluate the sand production rate of the drinking water supply wells in Eslamshahr county. So Ten wells which supply the city's major water needs were examined. Required samples were taken in four different seasons. In this case, the sand production at the start of the water pump, one, four, eight and twelve hours after the starting time were collected. After the analysis of experimental data and studies about wells structure it was concluded that sand production in wells which located in North West, South East and South West study area to compare with other drinking wells of Eslamshahr rural’s are more and at the time of starting the pump, sand production is high and after four hours it will decrease. After this time, with increasing water harvesting time, the rate of well’s sand production also increased that means after twelve hours of pump starting, the sand production rate is higher than starting time and then the timeframe for water harvesting should be considered.

Keywords

References

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