نوع مقاله : مقاله پژوهشی
نویسندگان
1 آبیاری و زهکشی، دانشگاه شهرکرد، شهرکرد، ایران
2 استادیار گروه مهندسی آب، دانشگاه شهرکرد، شهرکرد، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The main problem facing trickle irrigation systems are emitter clogging. Water quality is mainly due to emitters clogging. The purpose of this study was to assess the extent to clogging emitters using water quality in predicting clogging emitters in drip irrigation systems in the country are affected. For this purpose, 10 different parts of the system in terms of different weather conditions were selected. Emitters blocked in each system were collected and the factors that cause clogging in the system have been determined. The results showed that the predicted risk of clogging emitters using common indicators of water quality characteristics based on the realities of what happened in all the systems were combined with high uncertainty. In 60% of cases clogging the emitters to predict potential chemical agents and the other was related to the combined effects of three factors (Physical- Chemical- Biological). But in most cases the actual clogging occurred on emitter's physical factors. The uncertainty of the systems to return them to operation management includes: Lack of proper washing of the central control unit, don't wash pipe network after installation the online emitters, lack of preventive measures include use of chlorination and acid injection into the system if necessary, and most importantly, lack of correct application of fertilizers with irrigation water due to the manner, timing and injection rate of the principles network
کلیدواژهها [English]