Device for treating sewage by utilizing immobilized biological filler and treatment method thereof

The invention discloses a device for treating sewage by utilizing immobilized biological filler and a treatment method thereof. The device comprises a microorganism cell, an immobilization tank, a sizing mechanism and a culture pond in sequence, wherein the microorganism cell is in pipeline connection with the immobilization tank through a peristaltic pump; the immobilization tank is used for accommodating the immobilized filler and storing bacterium liquid conveyed by the microbial cell; the immobilization tank is provided with a stirrer; a stirring blade of the stirrer extends to the lower part in the immobilization tank; the immobilization tank is further provided with a solid matter outlet and is connected with the sizing mechanism through a first conveying mechanism; the sizing mechanism is used for sizing solid matters output by the immobilization tank; the sizing mechanism is connected with the culture pond through a second conveying mechanism and the second conveying mechanismis used for inputting the sized solid matters into the culture pond through the corresponding treatment method; an immobilized carrier is used for providing an attachment and protection space for purification microorganisms through the corresponding treatment method; direct contact between the purification microorganisms and a polluted environment is isolated; a condition that new ecological hazards are caused when the ecological hazard are introduced to repair microorganisms is avoided and the device has important actual application value.