In the light of the low Hydraulic Loading of traditional wastewater rapid infiltration land treatment system,a experiment project of constructing composite system by using artificial and natural sands is put forward.A lad\|scale experiment has been conducted with bath wastewater for five months.The results show that the composite system has higher Hydraulic Loading and better removal effect for bath wastewater.The average removal rates for COD,BOD\-5,SS and MBAS are 86.25%,86.75%,98.95% and 90.86% respectiv...