METHOD OF REMOVAL OF HEAVY METAL IONS FROM WATER

摘要

The invention relates to (i) a method of removal of heavy metal ions from wastewater by adsorption on aquatic plants; and (ii) a method for recovery of nanoparticles of a heavy metal from wastewater by adsorption on aquatic plants, reduction of the heavy metal ions to heavy metal nanoparticles and recovery of the heavy metal nanoparticles from the aquatic plant. In particular, the present invention provides such methods wherein enhanced adsorption is achieved by microwave irradiation, and the adsorbed metal ions can be reduced to the nanometal particles without addition of a reducing agent.