Category: technology
-
Qanat system in Iran (second part)
How it works The rate of flow water in a qanat is controlled by water table level ,so qanat cant make notable decrease in aquifer because its flow would fluctuate immediately by underground water table .qanat would be a sustainable system that provide water unlimitedly ,though the fundamental disadvantage of qanat would be a self […]
-
Qanat system in Iran …(first part)
Introduction of Qanat In early part of the first millennium BC ,Persians(Iranian ) started constructing elaborate tunnel systems called Qanat for extracting ground water in the dry mountain basins of present-day Iran