Sewage treatment device for efficiently removing pollutants

• Main Authors: LYU JINZE, WANG SHUO, LI JI, PENG ZHIYING, LI HUAIBO, ZHENG KAIKAI, WANG YAN
• Format: Patent
• Language: Chinese; English
• Published: 03.07.2020
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model relates to a sewage treatment device capable of efficiently removing pollutants, and belongs to the technical field of sewage treatment equipment. The device comprises an aeration tank, a sedimentation tank and a sulfur-iron autotrophic denitrification filter tank, the sulfur-iron autotrophic denitrification filter tank is provided with a filler layer, and the filler layer comprises stone particles and a sulfur-iron filler layer from bottom to top; the ferro-sulfur packing layer comprises sulfur particles and an iron packing layer, supporting layers are arranged on the upperportion and the lower portion of the iron packing layer, and water distribution holes are formed in the supporting layers; and scrap iron is placed in the screen in the iron packing layer, and an ironpacking replacement opening is further formed in the iron packing layer. The iron chemical phosphorus removal effect is brought into full play, when scrap iron is consumed and cannot meet the phosphorus removal requirement, t