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| Study on influences of tiny sediment particles on clogging performance of moistube |
| ZhuYanxiang1, Wang Xinkun1, Yang Yuchao1, Cheng Yan1, GuoRui2 |
| 1.National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Zhongshan City Water Conservancy Bureau, Zhongshan, Guangdong 528400, China |
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Abstract A series of muddy water clogging experiments are carried out under three particle sizes(<0.1mm)and different sediment concentrations when a mositub is subject to continuous irrigation to investigate influences of tiny sediment particles in water on clogging performance of moistube. Based on the experimental results, the effects of particle size, concentration and pressure head on the clogging performance are analysed. Meanwhile, the sensitive range of particle size and levels of sediment concentration for clogging are discussed. It is turned out that there is a positive relationship between sediment concentration and clogging degree. Moreover, the moistube is prone to being clogged when particle size is between 0.061and 0.100mm. Under the same water quality condition, the clogging degree reduces with increasing pressure head. These findings can provide a relevant theoretical basis for better utilizing moistube irrigation technology.
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Received: 12 December 2014
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