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以升流式双层陶粒滤料曝气生物滤池(UBAF)为研究对象,探讨曝气生物滤池对不同微污染水源水的预处理效果。结果表明,UBAF可有效应用于珠江下游不同微污染水源水的预处理。其中,UBAF对原水中的氨氮与亚硝酸盐氮去除效果最好,当不同水源水氨氮质量浓度分别为2.15～4.76 mg·L-1、0.52～2.33 mg·L-1、0.16～1.04 mg·L-1时,氨氮平均去除率分别为89.35%、64.42%、28.56%,且出水氨氮均可满足生活饮用水卫生标准(GB 5749-2006)规定的氨氮质量浓度<0.5 mg·L-1的限值要求;对亚硝酸盐氮的平均去除率高达85.9%;而对耗氧量和浊度去除率相对较低,平均去除率分别为16.77%～25.22%和25.56%～35.59%。
In order to investigate the pretreatment effect of aerated biofilter on different micro-polluted source water, the upflow bioceramic BAF (UBAF) was studied. The results show that UBAF can be effectively applied to the pretreatment of different micro-polluted water sources in the lower reaches of the Pearl River. Among them, UBAF had the best removal efficiency of ammonia nitrogen and nitrite nitrogen in raw water. When the concentration of ammonia nitrogen in different water sources was 2.15 ~ 4.76 mg · L-1, 0.52 ~ 2.33 mg · L-1, 0.16 ~ 1.04 mg · L-1, the average removal rates of ammonia nitrogen were 89.35%, 64.42% and 28.56%, respectively, and the ammonia nitrogen in the effluent could meet the requirement of ammonia nitrogen concentration <0.5 mg · L-1 as stipulated in the sanitary standard of drinking water (GB 5749-2006) The average removal rate of nitrite nitrogen was as high as 85.9%, while the removal rate of oxygen consumption and turbidity was relatively low. The average removal rates were 16.77% -25.22% and 25.56% -35.59%, respectively.