WASTEWATER TREATMENT METHOD AND WASTEWATER TREATMENT DEVICE

摘要

Provided are a wastewater treatment method and a wastewater treatment device for removing selenium having a valence of 0, 4, and 6 as well as selenium having a valence of -2, and reliably and easily removing selenium considered to be a hazardous substance from wastewater. A wastewater treatment method and a wastewater treatment device for treating selenium-containing wastewater in which selenium having a valence of -2 contained in the wastewater is oxidized using an oxidation agent or removed using a removal agent.