Biological anaerobic treatment - UASB technology

Hydroitalia – Colsen designs and constructs UASB technology systems for the anaerobic treatment of wastewater with an high COD content.

The industrial application of the UASB technology is convenient for its many operational advantages in terms of environmental, management and economical results.

  • Biogas production from the anaerobic treatment of wastewater with an high organic content;
  • Low operational costs of the system;
  • Anaerobic granular sludge available with a commercial value;
  • Stable and efficient process operation;
  • Reduced production of sludge;
  • Small footprint plants.


The UASB technology is successfully applied for the wastewater treatment in the following sectors:

  • Food industry
  • Paper industry
  • Dairy industry
  • Pharmaceutical and chemical industry;
  • Starch and yeast manufacture industry
  • Sugar manufacture industry;
  • Brewers, distillers, vintners and soft drinks manufacturing industry;
  • Bread and cake manufacturing industry;