At present red mud didn't recognized as recyclable resources because of large generation and some problems such asimpermeability, high pH value, aluminium leachate, and causing red water in Korea. In order to recognized as recyclableresources, therefore, we suggest the policy proposals were suggested by reducing the above mentioned problems. In 'WasteManagement Act' similar inorganic sludge which has similar characteristics with red mud is regulated land treatment bymixing with general soil, so red mud should be treated in the same method in order to promote the permeability. Redmud should be neutralized because its pH is very high. It should be careful in neutralized operation because of red watergenerated from red mud. It may be suspected that the red water is contaminated un aesthetic point. To reduce the strengthof red water, red mud is treated to a magnetic process in order to recover the magnetic ferrous material. Through thismagnetic process, ferrous material could be recovered 20 thousand ton per year, and the color intensity reduced to 77.3%.

Abstract
 I. 서 론
 II. 적니의 발생이론
 III. 연구방법
 IV. 연구결과
  1. 적니의 발생 특성
  2. 적니로부터 유발가능한 환경문제
  3. 적니의 자원순환 평가
 IV. 결 론
 References

• 민달기(가천대학교 환경에너지학과) | Dal-Ki Min Corresponding author