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I. Product Positioning

UASB is an Upflow Anaerobic Sludge Blanket reactor: wastewater flows upward through a sludge bed composed of high-concentration anaerobic granular sludge, where organic matter is progressively degraded by anaerobic microorganisms to produce biogas. A three-phase separator at the top of the reactor efficiently separates biogas, treated water, and sludge—biogas is collected for utilization, sludge is retained and returned, and clear water overflows for discharge. The equipment requires no packing, no aeration device, and produces minimal excess sludge, featuring a simple structure and stable operation.

II. Working Principle

1. Uniform bottom water distribution: Raw water enters uniformly from the bottom of the reactor through a distribution system and flows upward at an appropriate upflow velocity, avoiding channeling and short-circuiting.

2. Anaerobic degradation: Wastewater flows upward through the high-concentration granular sludge bed, where organic matter is decomposed by anaerobic microorganisms, generating biogas primarily composed of methane (CH₄) and carbon dioxide (CO₂).

3. Three-phase separation: The mixed liquor rises to the three-phase separator at the top, where biogas is collected and discharged; sludge flocs settle by gravity and return to the sludge bed, maintaining bed concentration; clarified water overflows from the collection trough for discharge.

4. Biogas utilization: The collected biogas, after pressure stabilization and purification, can be used for power generation, boiler combustion, or flare combustion, achieving energy recovery and carbon emission reduction.

6. Process flow: Raw water → Uniform bottom water distribution → Anaerobic degradation in granular sludge bed (biogas production) → Three-phase separator (gas/liquid/solid separation) → Biogas utilization + clear water effluent

III. Core Advantages

IV. Main Technical Parameters

V. Typical Application Scenarios

VI. Applicable Boundaries and Selection Recommendations