Cervecera de Nicaragua

Customer: Compañía Cervecera de Nicaragua C.A.

Country: Nicaragua

Plant: Managua

Production Type: Beer and Juices

Applied Solution:

  • Mixing Tank
  • Anaerobic Reactor (Amubix TM-B)
  • Biogas Burner
  • Aeration System
  • Ferric Chloride Dosing


The existing wastewater treatment plant underwent renovation to meet environmental discharge regulations. The mechanical strainer and sedimentation tank, utilized for pretreatment to eliminate sand, remained unchanged. Downstream of the sedimentation tank, a mixing tank was introduced to regulate the residual water’s pH through the addition of sodium hydroxide or hydrochloric acid.

Additionally, a stream from the aerobic reactor, degassed to reduce sodium hydroxide consumption, was incorporated into the mixing process. An anaerobic treatment system was installed to significantly reduce COD and BOD levels, followed by aerobic treatment to further refine the water quality to meet discharge standards.

The original aerobic treatment, comprising aeration ponds, was retained but upgraded with fine bubble diffusers for enhanced oxygen transfer. Furthermore, an iron chloride dosing system was implemented to address excess phosphorus, while the existing press filter was retained.