PROCESS FOR REMOVING HEAVY METAL COMPONENTS FROM FLY ASH BY USING MICROORGANISM

摘要

PURPOSE: A process for removing heavy metal components from fly ash that is produced by coal incineration using microorganism is provided. CONSTITUTION: After cultivating microorganism, especially Aspergillus niger, in fly ash mixed with water and culture medium, the metal is released out of fly ash to water solution by organic acid which is produced by the growth of microorganism and when the metal is adsorbed by the microorganism, recover the microorganism.