Research on Anti-clogging of Emitters under Drip Irrigation with Reclaimed Water

With the construction of the new countryside,sewage disposal systems in rural areas has improved gradually.With the popularization of water-saving irrigation technologies,renewable sources of water use in rural areas has become a new method of water-saving irrigation.This paper is targeted at rural sewage treatment systems to carry on recycled water drip test.The results show that emitters must have applicability water with anti-clogging features in the rural areas to promote drip irrigation with renewable water.Wide emitter's anti-clogging performance is better than the other 3 emitters' because it has self-cleaning function.And the large-flow emitters' anti-clogging performance is better than the low-flow emitters'.Biofilms composed of micro-organisms and solid particles easily deposits on the grid and buffer outlet of emitters,which leads to clogging.So it is the direct reason for the emitter' clogging.Emitter flow channel of the random deposition of material growth and shedding,causing clogging of emitters is a random process.In order to enhance emitters' anti-clogging performance,the drip irrigation system should be cleaned when it runs approximately 350 h.