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Nitrification in the Activated Sludge Process

Waste Water Treatment

  1. Michael H. Gerardi

Published Online: 15 JUL 2005

DOI: 10.1002/047147844X.ww1881

Water Encyclopedia

Water Encyclopedia

How to Cite

Gerardi, M. H. 2005. Nitrification in the Activated Sludge Process. Water Encyclopedia. 1:751–755.

Author Information

  1. Linden, Pennsylvania

Publication History

  1. Published Online: 15 JUL 2005

Abstract

There are two reduced forms of nitrogen that are of concern to wastewater treatment plant operators and state and federal regulatory agencies. These forms contain hydrogen and consist of nonionized ammonia or ammonia (NH3) and ionized ammonia or ammonium ion (NH4+). Although ammonia and ammonium ions are both present in wastewater, the amount of each is dependent on the pH of the wastewater.

Keywords:

  • nonionized ammonia;
  • ionized ammonia;
  • ammonium;
  • wastewater