改良型BFBR工艺的开发及应用研究

Development and Application of the Improved BFBR Process

为了提升BFBR水处理工艺的处理效果,选用微纳米气泡发生器替代传统的曝气设备,通过提升水体溶解氧浓度和促进挺水植物的生长来达到更好的污水处理效果。结果表明,微纳米曝气的效果要优于普通曝气,经过微纳米气泡曝气,水中溶解氧能保持更长的时间。改良后的BFBR工艺在处理生活污水方面更有优势,其中CODcr、氨氮、总氮和总磷四个指标的去除率分别达到了91.12%、89.10%、82.21%和86.17%,相比较于传统BFBR工艺分别提高了7.55、19.70、10.63和16.10个百分点,显示出更好的处理效果。

In order to improve the treatment effect of the BFBR water treatment process,a micro-nano bubble generator is used instead of the traditional aeration equipment to achieve a better sewage treatment effect by increasing the dissolved oxygen concentration of the water and promoting the growth of the emergent water plant.The results show that the effect of micro-nanometer aeration is better than that of ordinary aeration.After micro-nanometer bubble aeration,the dissolved oxygen in water can be maintained for a longer time.The improved BFBR process has more advantages in treating domestic sewage,including CODcr,ammonia nitrogen,The removal rates of the four indicators of total nitrogen and total phosphorus reached 91.12%,89.10%,82.21%,and 86.17%,respectively,which were 7.75,19.70,10.63 and 16.10 percentage points higher than those of the traditional BFBR process,showing better results and treatment effect.