1results about How to "Reduce dissolved oxygen" patented technology

The utility model relates to a kind of ecological system of reinforcing three-surface riverway denitrification and phosphorus removal, comprising: the cascade dam body being arranged in three-surface riverway and intercepting water body, ecological filter cage is arranged in the upstream river reach of cascade dam body in three-surface riverway, slow-release carbon source is added in ecological filter cage, ecological floating bed is arranged in the upstream river reach of ecological filter cage in three-surface riverway, plant gabion is arranged in the downstream river reach of cascade dam body in three-surface riverway.Affirmative effect is: ecological floating bed, ecological filter cage, cascade dam body, plant gabion are set along the direction of water flow in three-surface riverway, slow-release carbon source is added in ecological filter cage, by multistage purification process, to carry out water quality restoration to three-surface riverway water body, strengthen the removal of pollutants in water body, i.