Equipment Description
As an anaerobic biological system for wastewater treatment with anaerobic filtration and activated sludge tech, Up-flow Anaerobic Sludge Blanket Reactor (UASB) converts organic contaminants in wastewater into renewable biogas. Widely applied in high-and medium-strength wastewater treatment across industries(e.g. food processing, brewing, pharmaceuticals, livestock farming, textile dyeing, landfill leachate management etc.).

Equipment Properties

Valuable biogas production, can be collected and using as clean energy;
Lower energy consumption for treatment process;
Less nutrients needed;
Less bio-solids production;
Effectively organic handle shock loads.

Working Principle

The UASB anaerobic reactor consists of an inlet and distribution system, reactor tank, and three-phase separator. The reactor retains a high concentration of anaerobic sludge, forming a dense sludge layer with excellent settling and aggregation properties at the bottom.

Wastewater Distribution

Effluent is uniformly introduced at the reactor base, flowing upward through the sludge bed containing granular or flocculent sludge.

Anaerobic Digestion

Organic matter is degraded by anaerobic microorganisms in the sludge layer, producing methane-rich biogas.

Biogas Release & Separation

Microbubbles of biogas form and coalesce during ascent, carrying sludge particles upward.
At the three-phase separator, bubbles detach from sludge, which settles back into the reactor.
Released biogas is collected in the separator's gas chamber and extracted via pipelines.

Solid-Liquid Separation

Treated effluent overflows from the sedimentation zone, while settled sludge returns to the reaction zone via inclined walls.

Application

The UASB anaerobic reactor is chiefly applied for wastewater treatment for numerous industries(e.g. food processing, brewing, pharmaceutical and chemical engineering, livestock and poultry breeding, dyeing and printing, landfill leachate and so on).