The invention belongs to the field of
environmental protection equipment, and relates to an environment-friendly
toilet technology, in particular to an
ecosystem applied to
septic tank sewage treatment. The
ecosystem comprises a multi-stage septic apparatus, the multi-stage
septic tank is provided with a liquid
discharge pipe, the liquid
discharge pipe communicates with a
sewage collection tank, awater outlet end of the
sewage collection tank is provided with
water seepage pipes, the
water seepage pipes are provided with seepage holes, the
water seepage pipes are pre-buried in the ground, a planting area is arranged on the ground surface, the planting area is divided into a plurality of sections from one side, close to the sewage collection tank, of the water seepage pipes to one side, away from the sewage collection tank, of the water seepage pipes, corresponding plants are sequentially planted in the corresponding areas according to the ability of absorbing
nitrogen element in the soil from strong to weak, a water filtering apparatus is arranged at the underground position below the planting area along the horizontal direction, a slope is formed by excavating in the ground located below the water filtering apparatus, the low position of the slope communicates with a water inlet end of a
sedimentation tank, and a water outlet end of the
sedimentation tank communicates with aclarification tank.