CAJ | 학술논문

转子结构为相互嵌套的填料环的新型旋转填料床是基于强化气膜控制传质过程的新型高效传质设备。以空气作为气提剂，在新型旋转填料床中对氨氮废水进行吹脱实验研究，考察了吹脱过程中气液比、pH值、超重力因子、循环次数等因素对氨氮脱除率的影响。实验结果表明：在温度10℃，气液比1000，pH 值为11.0，超重力因子为67的实验条件下，单级氨氮脱除率为43.87%，而经过4次循环吹脱后，氨氮脱除率达到80.2%，经过8次循环吹脱后，氨氮脱除率达到90.1%。通过对比分析，在相近的操作条件下，新型旋转填料床的氨氮脱除率明显高于文献错流旋转填料床，表明新型旋转填料床能有效地强化气膜控制的传质过程。
전자결구위상호감투적전료배적신형선전전료상시기우강화기막공제전질과정적신형고효전질설비。이공기작위기제제，재신형선전전료상중대안담폐수진행취탈실험연구，고찰료취탈과정중기액비、pH치、초중력인자、순배차수등인소대안담탈제솔적영향。실험결과표명：재온도10℃，기액비1000，pH 치위11.0，초중력인자위67적실험조건하，단급안담탈제솔위43.87%，이경과4차순배취탈후，안담탈제솔체도80.2%，경과8차순배취탈후，안담탈제솔체도90.1%。통과대비분석，재상근적조작조건하，신형선전전료상적안담탈제솔명현고우문헌착류선전전료상，표명신형선전전료상능유효지강화기막공제적전질과정。
The rotor structure of the novel rotating packed bed (RPB) is nested packing rings, which is a new efficient apparatus for intensifying the gas-side mass transfer resistance controlled process. Ammonia-nitrogen wastewater was stripped by air in the novel RPB, and the effect of gas-liquid ratio, pH value, high-gravity factor and the number of cycles on were studied experimentally. The results showed that the single-stage removal rate of ammonia-nitrogen was 43.87% under following operational conditions:temperature of 10℃, gas-liquid ratio of 1000, pH value of 11.0, high-gravity factor of 67, and the removal rate of ammonia-nitrogen could reach 80.2%and 90.1%, respectively, after 4 and 8 cycles. The removal rate of ammonia-nitrogen in the novel RPB was much higher compared with that of the cross-flow RPB, which indicated that the novel RPB could intensify effectively the gas-side mass transfer resistance controlled process.