Study on the Adsorption of Metal Ions by Immobilized Marine Algae with the Existence of Clay

摘要

The process of adsorption of metal ions by immobilized marine algae with the existence of clay was investigated. It can be noted from the results that, after mixing with clay, the adsorption rate increases rapidly with the increasing amount of the marine algae. When pH=5, the best ratio between the clay and the marine algae is 1:4 for Pb~(2+). The result of in situ handling of the waste water containing heavy metals shows that the average adsorption rates of heavy metal irons Cu~(2+), Cd~(2+), Pb~(2+) and Ni~(2+) are all over 70 %.