Land treatment system is an effective way in bettering environment and easing present water shortage problem, for its low cost、low investment、nice wastewater treatment result and practicability of reclaiming treated water. However, its popularization are greatly limited by two points: the blockage and recovery of Filtration medium, which are key for the system's stable after long time's run. So, based on traditional land treatment systems, a new method was advanced to use capillary phenomenon exi...