OPTIMIZATION OF CHEMICAL TECHNOLOGICAL PROCESSES IN THE REHABILITATION OF COLLECTOR-DRAINAGE SYSTEMS IN THE SALYAN-MUGAN AREA
Authors
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A.A. Sariyeva
Azerbaijan University of Architecture and Construction, Baku, Azerbaijan
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M.S. Zarbaliyev
Azerbaijan University of Architecture and Construction, Baku, Azerbaijan
DOI:
https://doi.org/10.55956/MRCL8645Keywords:
Salyan, Mughan, drainage, land reclamation, soil salinity, Darcy’s law, hydrotechnical model, efficiencyAbstract
This study investigated the technical condition, operational problems and engineering-hydrotechnical bases for their rehabilitation of collector-drainage systems located in the Salyan-Mugan plain zone of Azerbaijan. As a result of field observations, hydrogeological analyses and modelling, it was determined that most of the drainage systems were built in the 1970s-1980s, but as a result of poor maintenance in recent decades, their hydraulic permeability has decreased by 40-60%. Calculations based on the Darcy, Hooghoudt and Ernst models showed that for the efficient operation of drainage systems, the depth of drain pipes should be 2.3-2.5 m, and the spacing should be 65-80 m. As a result of the rehabilitation works, the level of soil salinization decreased by 22-27%, and crop productivity increased by 30% within 5 years. Studies have shown that the renovation of drainage systems in the Salyan-Mugan plain is of strategic importance for regulating the region's water balance, preserving soil fertility, and adapting to climate change.
