Earticle

초록

영어

Zeolite NaP1 was successfully synthesized using coal bottom ash which was separated by difference in floating solution density using sink-float separation technique. Depending on the density of floating solution, dense phases such as quartz or mullite can be effectively separated from amorphous glassy material which consists of mainly amorphous SiO2 and Al2O3. The results suggest that the higher the amorphous glassy material exists within coal bottom ash separated, the higher the crystallinity can be obtained. The cation exchange capacity test shows 1400 meq/kg for as-synthesized NaP1 from coal bottom ash separated under 1.8 S of floating solution density which is 35 times and 3 times higher than of commercial activated carbon and natural zeolite, respectively. Adsorption kinetic study shows very rapid equilibrium on uptake of Pb, Cd and Cr within 300 seconds which would provide highly efficient tool to remove heavy metals from contaminated waste water.

목차

ABSTRACT
 1. INTRODUCTION
 2. METHODOLOGY
  2.1 Theoretical background of zeolite
 3. EXPERIMENTAL DETAILS
  3.1. Materials
  3.2. Zeolite synthesis
  3.3 Cationic exchange capacity Test (CEC test)
  3.4 Adsorption study
 4. RESULTS & DISCUSSION
  4.1. Characterization of coal bottom ash
  4.2. Crystallization of zeolite NaP1 from coal bottom ash
  4.3. Effect of physical condition during sink-float separation on crystallization
  4.4. CEC test and Adsorption kinetics on heavy metals with as-synthesized NaP1
 5. CONCLUSION
 6. ACKNOWLEDGEMENTS
 7. REFERENCES

저자

• Bowon Kim [ Korea Minjok Leadership Academy, #1300 SOSA, Anheung Hoengseong, Gangwon, Korea ] Corresponding author
• Young Ran Ahn [ Korea Minjok Leadership Academy, #1300 SOSA, Anheung Hoengseong, Gangwon, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  APEC Youth Scientist Journal [APEC 청소년 과학학술지]

• 간기

  반년간

• pISSN

  2005-5625

• 수록기간

  2009~2022

• 십진분류

  KDC 405 DDC 505