The present invention is an unsaturated secondary or tertiary processing of soil and underground aquifers can be discharged from sewage treatment plants for processing and then pass through the saturated zone to a method and apparatus for recycling it back to the pump , as used for ground water . ; the present invention is the water table , the surface layer of the soil structure, the hydraulic conductivity of the soil selection of a suitable location , consider factors such as soil characteristics and the main characteristics of the country , by providing a method of driving the process , and to actively cope with the seasonal demand , such as the drought in the long-term conservation of water treatment , groundwater replenishment effect due to underground It can prevent the settlement of the aquifer , and provides a method and apparatus capable of reusing the effluent of sewage treatment plant in an economical and environmentally friendly method because of the use of the natural soil and aquifers .
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