Reduce the ammonia nitrogen content in the wastewater stripped and purified water
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At present, the ammonia nitrogen concentration in the feed wastewater used for sewage stripping here is around 15,000 mg/L. A single-stage pressurized stripping process with ammonia extraction via a side stream is employed, and the steam consumption per unit volume in the stripping tower ranges from 0.18 to 0.19. However, the ammonia nitrogen concentration in the wastewater purified at the bottom of the tower remains between 40 and 50 mg/L. Are there any effective technical improvements that can reduce the ammonia nitrogen content in purified water? Also, is it possible to modify the trays inside the stripping tower?
Ion exchange resins can be considered for the precise removal of ammonia nitrogen, enabling its concentration to be reduced to below 1 ppm. Once the resin becomes saturated with ammonia nitrogen, it is regenerated using sulfuric acid; the resulting regeneration solution is by-product sulfuric acid AN. We are the largest manufacturer of specialty resins in China, and we’re happy to discuss this further if you’re interested
I recommend a microwave catalysis technique that generates no secondary waste
How should the ammonia nitrogen extracted from the side line be treated?
With single-tower side-line extraction, it is difficult to control the ammonia-rich zone; various parameters fluctuate slightly, and this zone tends to move upward or downward, resulting in inappropriate ammonia nitrogen levels. If the load is high, switching to a dual-tower stripping system can be an option
What kind of manufacturing process is this? Let’s discuss it
It involves using a special material to absorb ammonium ions; as a result, the ammonia nitrogen level in the treated wastewater meets the required standards. The material that has become saturated with ammonium ions can be regenerated to regain its adsorption capacity and continue to be used. Those who are interested can contact me for more details