The new UASB reactor, based on engineering practice and the integration of advanced domestic and international technologies, has reformed and innovated the traditional UASB reactor structure. It has achieved international advanced levels in the treatment of high-concentration organic wastewater and has been applied in large-scale starch factories, food wastewater treatment, glove production wastewater treatment, refined cotton cellulose wastewater treatment, textile dyeing and finishing wastewater treatment, and in the treatment of avermectin, vitamins, penicillin, etc. The process design is advanced, with strong wastewater treatment capabilities, low energy consumption, and low operation costs, producing high gas yields. Each kilogram of COD can produce 0.58-0.6 cubic meters of gas, far exceeding the theoretical value of 0.35. Anaerobic sludge is fully granulated, effectively solving the difficulties of three-phase separation, acidification control, and granular sludge production in UASB reactors, and has broad application prospects.

New Generation UASB Anaerobic Reactor Technical Advantages

High volumetric load: The sludge concentration in the reactor is high, the amount of microorganisms is large, and the incoming water organic load is high.

2. The UASB has a high anaerobic sludge concentration, with an average sludge concentration of 20-40 g MLVSS/L.

3. Save on investment and land area.

4. High impact load resistance

5. Low power consumption; no mixing equipment required. The upward movement of biogas generated during the fermentation process keeps the sludge at the top of the sludge bed in suspension, and also provides some degree of agitation to the lower sludge layer.

6. Sludge beds are carrier-free, saving costs and avoiding blockage issues caused by filling materials.

7. Good water stability

8. Short startup cycle, high sludge activity in the reactor, rapid biological proliferation, providing favorable conditions for quick reactor startup.

9. Biogas has high utilization value; the bio-gas produced by the reactor has high purity, with 70% to 80% CH4, 20% to 30% CO2, and 1% to 5% of other organic substances, which can be used as fuel.

New UASB Anaerobic Reactor: Current Application and Future Prospects

Novel UASB Anaerobic Reactor

Demonstrations and validations have been conducted in 46 enterprises across the chemical and light industry sectors, yielding positive economic, environmental, and social benefits.

The series of technical advantages and engineering success of the new UASB reactor, which has become a mature and feasible wastewater treatment process for the resource utilization of sewage sludge, has also resolved the issue of environmental pollution.