A wide range of Anaerobic Technologies

Veolia Water Solutions & Technologies offers a wide range of anaerobic technologies for the treatment of sludge and liquid effluents :

 

1. Anaerobic treatment solutions for industrial effluents:

1.1 Low to medium concentrations of suspended solids (SS):

  • Anaerobic filter: using biomass fixed to a support media (usually plastic), with upward or downward percolation and operating at load capacities of 5-15 kg COD/m3.d; hybrid processes, combining anaerobic filter on the upper part and a sludge bed at the bottom, are available;
  • UASB reactors, based on the sludge granulation concept, are high loading rate reactors. Operating at 10-15 kg COD/m3.d, they are compact and they use three-phase separator technologies for optimal separation of the produced biogas, the clarified effluent and the sludge;
  • EGSB reactors, also based on an expanded bed of granulated sludge, are very high loading rates, operating at up to 30 kg COD/m3.d. Extremely compact, they use differentiating innovations such as internal circulation by gas lift and/or a high-tech three phase separator;

1.2 High concentrations of SS:

  • CSTR* (Contact process) operating at up to 5 kg COD/m3/d. A completely mixed anaerobic reactor followed by a clarifier to separate and recirculate the biomass. Used for high concentrate waste streams or those containing high concentrations of suspended solids, fats, oil and grease.

* Completely Stirred Tank Reactor



2. Sludge digestion solutions:

A complete range of mesophilic or thermophilic digestion solutions with: