The invention relates to an efficient and stable domestic
sewage ecological treatment device and an operation method and belongs to the field of
sewage treatment of
environmental engineering. The efficient and stable domestic
sewage ecological treatment device comprises a soil layer, a water distribution layer, a
magnetic layer, a gravel layer and a
water collection layer from top to bottom and further comprises a water distribution and
collection system; the water distribution and
collection system comprises water inlet pipes and
water collection pipes; the water inlet pipes include a water inlet main
pipe and a plurality of water inlet
branch pipes, the water inlet main
pipe is connected with a
water pipe entering the ecological treatment device, the multiple water inlet
branch pipes areperpendicularly connected with the water inlet main
pipe respectively and located at the water distribution layer, the water inlet
branch pipes include the upper-layer water inlet branch pipes and the lower-layer water inlet branch pipes, and sewage enters the water inlet main pipe, the upper-layer water inlet branch pipes and the lower-layer water inlet branch pipes in sequence; the
water collection pipes include a water collection main pipe and a plurality of water collection branch pipes, and the multiple water collection branch pipes are perpendicularly connected with the water collectionmain pipe and located in a bottom groove; and the lower-layer water inlet branch pipes and the lower-layer water collection branch pipes are provided with a plurality of air inlet pipes respectivelyfor being communicated with the outside
atmosphere, and the treated sewage flows from the water collection branch pipes into the water collection main pipe and then is discharged. The sewage is distributed uniformly, and the treatment efficiency is high.