산업기술연구 (Journal of Industrial Technology)
- 제20권A호
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- Pages.57-62
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- 2000
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- 1229-9588(pISSN)
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- 1598-1371(eISSN)
맥반석의 용출시험 및 중금속 흡착특성
Leaching Test and Adsorption Characteristics of Porphyry for Removal of Heavy Metals
- 김종부 (강원대학교 환경공학과) ;
- 신명국 (강원대학교 환경공학과) ;
- 성낙환 (강원대학교 환경.생물공학부) ;
- 최문정 (강원대학교 환경.생물공학부) ;
- 김경주 (강원대학교 환경.생물공학부) ;
- 이동석 (강원대학교 환경공학과)
- Kim, Jong-Boo ;
- Shen, Ming-Guo ;
- Sung, Nak-Whan ;
- Choi, Moon-Jeong ;
- Kim, Kyung-Joo ;
- Rhee, Dong Seok
- 발행 : 2000.06.30
초록
This experiment was done to investigate the leaching and adsorption properties of heavy metals on porphyry. The comparison with respect to the leachability of heavy metals from porphyry between the Korea Standard Leaching Test (KSLT) and the Toxicity Characteristic Leaching Procedure (TCLP) was carried out. The fractional composition of leachate and the total concentration of heavy metal of porphyry were studied through Sequential Extraction Procedure (SEP) and EPA Method 3050. Adsorption experiment of porphyry has pointed out that the optimum dosage of porphyry for 50ppm Pb was over 10g/L, the effective particle size for absorption was below 200 mesh and the optimum pH was about 7. From the Freundlich' adsorption equation, 1/n was 1.0722, and k was 0.0041. After adsorption, the fractional composition of Pb was changed. The exchangeable, carbonate, reducible fractions were increased, and the organic fraction was not changed, and the residual fraction was decreased.
키워드