 Image Number K9509-1 |
Nitrifying bacteria inside these polymer gel pellets remove ammonia from swine wastewater.
Photo by Rob Flynn.
An official website of the United States government
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.