The invention provides a treatment device and method for high
ammonia-
nitrogen wastewater. The treatment device comprises an adjustment
pool, chemical feeding units, a tank, a first container, a second container, a first separating piece, a second separating piece and an
aeration module, wherein the chemical feeding units are used for adjusting the PH value of the
wastewater; an opening is formed in the upper portion of the tank; the first container is arranged in the tank and located in the second container, an opening is formed in the bottom of the first container, and a separating net is arranged in the opening; padding is arranged in the first container;
wastewater output by the adjustment
pool is sent into the first container; the second container is arranged in the tank, an opening is formed in the bottom of the second container, and a separating net is arranged in the opening; padding is arranged in the second container; wastewater output by the adjustment
pool is sent into the second container; the first separating piece and the second separating piece are arranged in the portion, outside the second container, of the tank from top to bottom; the upper portion of the first separating piece is inclined, and the horizontal distance between the first separating piece and the inner wall of the tank is decreased from top to bottom; the top end of the second separating piece is lower than the first separating piece; the second separating piece is provided with an opening; and the
aeration module is arranged under the second container. The treatment device and method for the high
ammonia-
nitrogen wastewater have the advantages of efficient operation, good application prospects and the like.