- P-ISSN 1225-0163
- E-ISSN 2288-8985
Adsorption characteristics of heavy metal ions, Cd(II) and Pb(II), on eastcoast-living algae, ulva pertusa, has been studied in our experiment. The Maximum adsorption amount of Cd(II) and Pb(II) ions on 1 g of the ulva pertusa were 2.3 mg, 3.1 mg in alkaline and 2.0 mg, 2.8 mg in acidic solution. However 3.4 mg, 7.3 mg in alkaline and 3.1 mg, 6.5 mg in acidic solution were shown on the Si-immobilized ulva pertusa in the same condition. Thus, Si-immobilized ulva pertusa adsorbs more amount of heavy metals, Cd(II), Pb(II), than the ulva pertusa, and more effective absorbent in alkaline. Furthermore, more amounts of Pb(II) ion were absorbed compare to Cd(II) ion in our work. Recovery ratio of Cd(II) and Pb(II) ions on the ulva pertusa were 55.0~61.0%, 59.7~66.8% respectively and 87.6~97.5%, 83.5~99.3% on the Si-immobilized ulva pertusa.