METHOD AND APPARATUS FOR TREATING WASTE LIQUID USING PROTOZOA

摘要

PROBLEM TO BE SOLVED: To solve an existing problem that a waste liquid containing heavy metal ions is treated so that the elusion of hexavalent chromium is made equal to or below a value regulated by the industrial waste elution and reclamation standard and is disposed by landfill in the ground. SOLUTION: In the method for treating a waste liquid, the waste liquid containing the heavy metal ions is supplied in a culture vessel 1 for protozoa such as Paramecium bursaria having plastid capable of growing (photosynthesis) by photoirradiation and absorbed the heavy metal ions into the the protozoa. The treating apparatus is provided with only the culture vessel 1 for the protozoa in which photoirradiation is possible and a waste liquid tank 2. COPYRIGHT: (C)2006,JPO&NCIPI