INTRODUCTION AND EVALUATION OF A NEW TECHNIQUE TO PREVENT DEPOSITION IN DRIP IRRIGATIONHossein Neshagar, Nader Pirmoradian, Mohamadreza Honar and Parisa Pashakhah
Encouraging farmers to use drip irrigation system is difficult due to deposition problems in this type of irrigation. The pickling method to remove clogging of drippers will result in environmental hazards. This studies aimed to address this problem by examining the impact of an ultrasonic-frequency wave electronic descaling system on clogging of drippers in a drip irrigation system. In this experiment, two treatments of control and treatment field were compared. An ultrasonic-frequency wave synthesizer was applied for the treatment field. Then the discharges of drippers were measured periodically and the trend of drippers discharges changes was analyzed in both the treatments. The mentioned system was also economically compared with three other descaling systems. The results showed that the discharged declining steep was averagely 0.17 in the control treatment and about 0.25 in the treatment field which was affected by waves. As an applied conclusion, it can be stated that the ultrasonic-frequency wave electronic descaling system was effective in preventing clogging of drippers in drip irrigation systems and hence it can be used there. It was also revealed that the use of this type of descaling system is not economically justifiable in small fields, while it can be recommended in medium and large fields
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