| 摘要 |
PURPOSE: A dredging water processing unit is provided to prevent a secondary contamination due to the injection of a chemical solution by using a natural composite material instead of using a chemical drug. CONSTITUTION: A dredging water-treatment apparatus includes a gravitational settling tank(10) in which precipitate is removed with the natural sedimentation while the dredging number exhausted from the dredging equipment stays for the predetermined time, a reaction bath(20) which mixes the firstly purified water with a nature composite materialized processing agent, a processing agent feeder(60) for supplying the processing agent to the reaction bath, a reactant settling tank(30) in which the dredging number finishing the reaction in the reaction bath flows in and precipitating the suspended material with the gravity, a natural type filter tub(40) equipped with the filter for filtering installed inside and dewatering outlets installed in the opposite lower part of the settling tank. |
