Host: The Japan Society of Waste Management Experts
Organotin compounds(TBT,TPT) assumed for the suspected endocrine disrupting chemicals.They have been detected from seawater and sediment still in high concentration. Moreover, it is a problem that the detoxifying treatment doesn't exist.Then,we are aiming at making of the polluted seawater and sediment quality harmless by using amorphous magnetite that the removal is effective in the heavy metal etc.When amorphous magnetite was added to the polluted seawater, showing the removal by physical adsorption against TBT and the removal by irreversible chemical reaction against TPT in 20degC reactive temperature.Moreover, when a reactive temperature was heated to 60degC, it came to show TBT irreversible chemical reaction.In a word,amorphous magnetite is different from other absorbents, it was a valuable reagent that is able to decompose organotin compounds by irreversible chemical reaction.However, because the contact efficiency is low, the elimination of organotin compounds is poor in sediment.The treatment of sediment will be examined in the future.
Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management
