Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic of the advanced treatment train. Unchlorinated tertiary wastewater effluent was treated sequentially by ozonation, parallel biologically activated carbon (BAC) filtration, parallel microfiltration (MF) and ultrafiltration (UF), parallel reverse osmosis units with two or three stages in series (RO), and an ultraviolet–free chlorine advanced oxidation process (AOP).
