Feasibility of Fog Water Harvesting in Abi-beyglu, Ardabil

Abstract

The decrease in rainfall and the increase in demand for limited water resources show the necessity of supplying water from non-conventional sources. In this research, the possibility of harvesting water from fog in the Abi-beyglu region, which is the main place where moist winds from the Caspian Sea enter the Ardabil plain, was investigated. First, by examining local observations and meteorological parameters, the possibility of harvesting fog water was investigated in terms of different geographical and climatic factors, and then by installing a standard fog collector, the amount of extracted water was measured daily. The results of the investigation of meteorological parameters indicate suitable conditions for the implementation of the fog water harvesting system in the region. The high average relative humidity (more than 70%) throughout the year, the high number of foggy days (more than a third of the year), as well as the appropriate wind speed (4.6 m/s on average) and its high frequency showed that there is a high potential in collecting fog entering the region. The average daily water collected during the foggy period was equal to 3.6 liters per square meter, which shows an acceptable value compared to the results of similar projects. In general, according to the quantitative and qualitative values of collected water, the implementation of fog water harvesting plans in the region is justified and therefore part of the water needs of the region can be provided.

Keywords

• non-conventional water
• abi-beyglu
• fog collector
• raschel