Method of treating fluorine contaminated soil using soil washing

• Main Authors: SONG YOUNG HO, KO SUNG HWAN, PARK JAE HYUN, SIM DOO SEOP, JEONG HONG BAE, UM CHAN HO, LEE SONG YI
• Format: Patent
• Language: English; Korean
• Published: 24.02.2020
• Subjects: APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES; CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES; CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; DISPOSAL OF SOLID WASTE; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MILLING GRAIN; PERFORMING OPERATIONS; PREPARATORY TREATMENT OF GRAIN FOR MILLING; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING

Disclosed is a method for purifying soil contaminated with fluorine using soil washing, which is to continuously purify fluorine-contaminated soil and capable of increasing purification efficiency. The method comprises the following steps: crushing surfaces of contaminated soil containing fluorite mineral by using the difference in hardness; separating the surface-crushed contaminated soil by the particle size into underflow soil and overflow soil; dewatering underflow soil; and discharging the dehydrated underflow soil as purified soil. 연속적으로 불소 오염토양을 정화하고, 정화효율이 높일 수 있는 토양세척을 이용한 불소 오염토양의 정화방법을 제시한다. 그 방법은 형석광물을 함유하는 오염토양을 경도 차이를 이용하여 표면을 파쇄하고, 표면이 파쇄된 오염토양을 입도분리하여 언더플로우 토양 및 오버플로우 토양으로 구분하며, 언더플로우 토양을 탈수하고, 탈수된 언더플로우 토양을 정화토로 배출한다.