Anubix-B™ (Upflow Anaerobic Sludge Bed)

Licensed from Global Water Engineering, the world leader in anaerobic wastewater treatment solutions, Anubix-B™ system is an UASB (The Upflow Anaerobic Sludge Blanket) reactor. The UASB type is the most commonly used one among all anaerobic reactor technologies worldwide. GWE has been developing the Anubix-B™ technology since 1979. Today the seventh generation of Anubix-B™ reactors treats wastewaters in more than 200 GWE installations all over the world. Standardized construction facilitates the constructing process, depending on the required flow rate and efficiency.

Anubix-B™ system is used to treat various types of wastewater produced in various branches of industry: from food, through paper to chemical industry.

 Advantages of Anubix-B™ (UASB) reactor:

  • works with granulated and flocculated sludge;
  • high amount of biomass and high process efficiency;
  • perfect separation of suspended matter – minimum risk of excessive sludge loss;
  • solid, corosion resistant construction;
  • easily accessible in case of inspection;
  • no need to clean;
  • no moving parts inside the reactor.

UASB

Principle of Operation

 Anubix-BTM reactor can reach 7,5 m in height, its loading rate can be up to 15 kgCOD/m3/d.

Raw sewage is fed to the reactor through an Internal Influent Distribution System and rises from the bottom to the top part of the reactor at preset speed. After passing through a bed of anaerobic active methanogenic granulated sludge the wastewater touches the flocculated sludge.

The wastewater and flocculated sludge mixture passes through an internal 3-phase separator device at the top of the reactor. The 3-phase separator has a special separating section which prevents the loss of even the smallest flocs of methanogenic sludge. Specially designed hydraulic system makes the anaerobic sludge slide down, so that no part of the reactor becomes a dead area, despite the slow flow rate. This allows for the higher amount of biomass than in other systems and makes the reactor more resistant to varying load compositions. Anaerobic sludge does not float and there is no risk of it escaping from the reactor. This particular solution has been tested in more than 200 Anubix-BTM  installations all over the world.

The effluent leaves the reactor through the collecting pipe. The biogas is sent for further use or to the flare.