Cu(II) can cause health problem for human being and phosphate is a key pollutant induces eutrophication in rivers and ponds. To remove of Cu(II) and phosphate from solution, chitosan as adsorbent was chosen and used as a form of hydrogel bead. Due to the chemical instability of hydrogel chitosan bead (HCB), the crosslinked HCB by glutaraldehyde (GA) was prepared (HCB-G). HCB-G maintained the spherical bead type at 1% HCl without a loss of chitosan. A variety of batch experiment tests were carried out to determine the removal efficiency (%), maximum uptake (Q, mg/g), and reaction rate. In the single presence of Cu(II) or phosphate, the removal efficiency was obtained to 17 and 16%, respectively. However, the removal efficiency of Cu(II) and phosphate was increased to 50~55% at a mixed solution. The maximum uptake (Q) for Cu(II) and phosphate was enhanced from 11.3 to74.4 mg/g and from 3.34 to 36.6 mg/g, respectively. While the reaction rate of Cu(II) and phosphate was almost finished within 24 and 6 h at single solution, it was not changed for Cu(II) but was retarded for phosphate at mixed solution.

ABSTRACT
 1. 서 론
 2 실험 재료 및 방법
  2.1 흡착제 개발
  2.2 제거효율 결정
  2.3 등온흡착 실험
  2.4 Kinetic 실험
 3 결과 및 고찰
  3.1 키토산 비드의 특성
  3.2 구리 및 인산염 제거 효율 결정
  3.3 등온 흡착 실험
  3.4 반응속도 실험
 4. 결 론
 References

• 안병렬(상명대학교 건설시스템공학과) | Byungryul An Corresponding author