AIC anaerobic reactor is an efficient multi-stage internal circulation reactor and a representative type of third-generation anaerobic reactor (uAsB is a representative type of second-generation anaerobic reactor). Compared with second-generation anaerobic reactors, it has the advantages of less land occupation, higher volumetric load, uniform water distribution, stronger shock resistance, more stable performance, and simpler operation and management. High concentration organic wastewater when cOD is 10000-15000mg/l; The second generation uAsB reactor generally has a volumetric load of 5-8kgCOD/m3 · d; The volumetric load rate of the third-generation AIc anaerobic reactor can reach 10-18kgcOD/m3 · d. Compared with the second-generation anaerobic tank, AIc has the following advantages:

1. Has a high volumetric load rate
The AIc anaerobic reactor has strong internal circulation, good mass transfer efficiency, and large biomass. Its volumetric load is much higher than that of ordinary uAsB reactors, generally about three times higher. When treating high concentration organic wastewater, the volumetric loading rate can reach 0-18 cOD/m3 · d when the cOD is between 10000 and 5000 mg/l.
2. Save infrastructure investment and land area
The AIC reactor has a volumetric load rate about three times higher than that of a regular UASB reactor, which is about 1/4-1/3 of the footprint of a regular UASB reactor, thus reducing the reaction time
Infrastructure investment in equipment. The AIc reactor not only has a small volume, but also a large aspect ratio, so it occupies a particularly small area and is very suitable for new and expansion projects in tight factories and mines.
3. Strong ability to withstand impact loads
The AIc reactor has achieved its own internal circulation, with a circulation volume of 10-20 times that of the influent. Because the circulating water and inlet water are fully mixed at the bottom of the reactor, the organic matter at the bottom of the reactor is concentrated
The degree is reduced, thereby improving the shock load resistance of the reactor; At the same time, the large amount of water also allows the bottom sludge to be evenly dispersed, ensuring sufficient contact and reaction between organic matter and microorganisms in the wastewater, thereby improving
Handling the load.
4. Good effluent stability
Because the AIc reactor is equivalent to the series operation of two UASB reactors, the lower reactor has a high organic load rate and plays a "coarse" processing role, while the upper reactor
The load of the device is low, and it plays a "precision" treatment role, making the effluent quality good and stable.

2、 Technical Instructions for Operation of AIC Anaerobic Reactor
Taking the AIc anaerobic reactor operation technical instructions for the citric acid wastewater treatment project designed and debugged by our company as an example

Through the analysis of the operation technology indicators of AIC anaerobic reactor, it is found that AIC anaerobic reactor has high COD removal rate, high volumetric load, large gas production, low operating cost, significant economic benefits, and is suitable for the treatment of medium and high concentration wastewater.