Wastewaters from the food and beverages industry, pulp and paper mills and from the chemical industry are highly loaded with organic pollutants and can be treated advantageously by means of anaerobic processes. Varying wastewater components and the wide range of possible COD concentrations, however, require the use of different anaerobic reactor types, each adapted to the specific situation.
The high rate system, the ANUBIX™ – B is used for low to medium-strength wastewaters that are low in solids and FOG, which promote good sludge growth in an UASB. The ANUBIX™ – B can utilize both granular and flocculent biomass, giving it the most flexibility of the UASB reactor configurations.
Technology: UASB bioreactor, secondary treatment, COD to biogas, three-phase separator.
The ultrahigh rate system, the ANUBIX™ – T is used for medium-strength wastewaters with easily-degradable organic matters, which promote excellent sludge growth in an Expanded Granular Sludge Bed (EGSB) configuration. The ANUBIX™ – T is exclusively a granular-sludge form of anaerobic technology.
Technology: EGSB reactor, high-rate bioreactor, secondary treatment, COD to biogas.
In contrast to the conventional UASB reactor ANUBIX™ – CES system, with a built-in three-phase separator at the top of the reactor which diverts the biogas and retains solids, in this reactor, sludge separation is performed externally in a special lamella type separator, the GWE SUPERSEP™ – CF. The effluent of the sludge separator flows by gravity into any post-treatment that might be required.
Technology: secondary treatment, anaerobic treatment, UASB, organic waste to biogas.