Standard Article

Anaerobic Sewage Treatment

Municipal Water Supply

  1. Lucas Seghezzo,
  2. Grietje Zeeman,
  3. Gatze Lettinga

Published Online: 15 JUL 2005

DOI: 10.1002/047147844X.mw2

Water Encyclopedia

Water Encyclopedia

How to Cite

Seghezzo, L., Zeeman, G. and Lettinga, G. 2005. Anaerobic Sewage Treatment. Water Encyclopedia. 1:517–521.

Author Information

  1. Wageningen University and Research Center, Wageningen, The Netherlands

Publication History

  1. Published Online: 15 JUL 2005


The state-of-the art of the anaerobic treatment of sewage, or domestic wastewater, is presented. The chapter begins with a brief definition of sewage and a description of the main pollutants contained in it. Negative consequences of the uncontrolled discharge of raw or badly treated sewage into the environment are summarized, with emphasis on health aspects. The technologies available to treat sewage are presented, focusing on the upflow anaerobic sludge bed (UASB) reactor. Some examples of the use of UASB reactors for sewage treatment are discussed. The chapter ends with an indication of the potential of UASB reactors to contribute to the achievement of more sustainable sanitation in developing countries.


  • sewage;
  • domestic wastewater;
  • anaerobic treatment;
  • anaerobic digestion;
  • UASB reactors;
  • decentralized sanitation