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재생잔골재 알칼리 생성조를 이용한 산성광산배수 처리AMD Neutralization By Alkali-Producing Reactor Packed with Fine Recycled-Concrete Aggregates
- Issue Date
- 2007
- Publisher
- 한국폐기물자원순환학회
- Keywords
- Acid mine drainage; Recycled-Concrete aggregates; Acid neutralization potential; Neutralization
- Citation
- 한국폐기물자원순환학회지, v.24, no.2, pp 185 - 192
- Pages
- 8
- Journal Title
- 한국폐기물자원순환학회지
- Volume
- 24
- Number
- 2
- Start Page
- 185
- End Page
- 192
- ISSN
- 2093-2332
- Abstract
- Neutralization process packed with fine recycled-concrete aggregates (RCAs) in alkali-producing reactor was tested to verify the treatability of AMD (Acid Mine Drainage) in terms of acid neutralization potential, sludge production, and removal efficiency of heavy metals and SS. As a result, alkaline water produced from the side-stream reactor packed with RCAs was efficient to neutralize AMD to meet effluent pH range of 6-8, and to remove heavy metals and SS. Direct contacting of RCAs to AMD main-stream was not proper because of precipitation of metal-hydroxides on the surface of RCAs, and handling problem of used RCA with metal component contamination.
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