Adsorption characteristics of Cd(II) and Pb(II) heavy metal ions onto the acrylamide-immobilized Ulva pertusa, an algae of the eastern coastal area, were examined inthis work. Adsorption rate was determined by modulating shaking time, concentration, and pH in the batch method. It was observed that the adsorption amounts of heavy metal ions in batch method was in the following order of pH 10.5>7.0>3.5, in good agreement with trend reported previously in column method. It was also revealed that Pb(II) was more readily adsorbed on the algae that Cu(II), and that adsorption amounts showed maximum within 20 minutes all over the pH range.

본 연구에서는 동해안 해조류인 구멍갈파래를 아크릴아미드에 고정하여, Cd(II) 및 Pb(II) 중금속 이온의 흡착 특성을 살펴보았다. Batch법에 의해 진탕시간, 농도 및 pH를 변화시켜가면서 흡착속도를 측정하였다. Batch법에서 중금속 흡착량은 pH 10.5>7.0>3.5 순으로 나타났으며, 이는 기발표된 Column법의 결과와 동일한 경향을 보였다. 또한 Pb(II)이온이 Cu(II)이온보다 많은 양이 쉽게 흡착되는 것으로 나타났으며, 모든 pH 영역에서 흡착속도는 20 min이내에 최대값을 보이는 것으로 나타났다.