公开(公告)号：US20240067547A1

公开(公告)日：2024-02-29

申请号：US17898486

申请日：2022-08-30

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Andrew Black ,  Luke Halverson ,  Timothy Pickett ,  Rebeccah Chapman

IPC: C02F9/00 ,  C02F1/00 ,  C02F1/52 ,  C02F3/00

CPC classification number: C02F9/00 ,  C02F1/008 ,  C02F1/5209 ,  C02F3/006 ,  C02F1/66

Abstract: A method of treating selenium-containing wastewater comprises performing anoxic biological treatment of the selenium-containing wastewater to produce a first liquid including a residual dissolved selenium species, introducing an oxidant into the first liquid to form an oxidant-treated first liquid, introducing a coagulant into the oxidant-treated first liquid to form a second liquid having selenium-containing solids, and removing the selenium-containing solids from the second liquid in a solids-liquid separation operation.