To raise the physical strength of alginate beads, this study manufactured alginate-cellulose bead by adding cellulose to alginate, and wanted to identify whether falginate-cellulose beads were sufficiently efficient in removing heavy metals. To find out optimal amounts of alginate and cellulose injection, this study conducted a pilot study, and repeated experiments proved that alginate 2 w/v% + cellulose 1 w/v% were the optimal amounts in manufacturing beads. Using micro materials tester, this study compared strengths of alginate beads and alginate-cellulose beads. Choosing Cd2+, Pb2+, and Ni2+ as materials to be removed, this study analyzed concentrations of them before and after the treatment. Experiments showed that, compared with alginate beads, the strength of alginate-cellulose beads was 2.26 times stronger, and that the latter could remove 98.22%, 99.99%, and 92.57% of Cd2+, Pb2+, Ni2+, respectively. While addition of cellulose to alginate made the absorption rate drop by about 1%, the beads were still highly efficient in removing heavy metals. Accordingly, it seems that alginate-cellulose beads can be used in removing heavy metals.

ABSTRACT
1. 서 론
2. 재료 및 실험방법
    2.1 재료
    2.2 비드 제조 방법
    2.3 표면 및 강도 분석
    2.4 FT-IR analysis
    2.5 흡착 실험
    2.6 등온 흡착 실험
    2.7 반응 속도식 실험
3. 결 과
    3.1 표면 및 강도 분석 결과
    3.2 FT-IR
    3.3 단일 성분 흡착 실험 결과
    3.4 등온 흡착 실험 결과
    3.5 반응 속도식
4. 결 론
사 사
References

• 이수정(서울시립대학교 환경공학과) | Sujeong Lee (Department of Environmental Engineering, University of Seoul)
• 한인섭(서울시립대학교 환경공학과) | Ihnsup Han (Department of Environmental Engineering, University of Seoul) Corresponding author