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出 处:《水处理技术》2011年第3期65-67,71,共4页Technology of Water Treatment
基 金:国家"十一五"水体污染控制与治理重大专项(2008ZX07423-002-1)
摘 要: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%。The study on pretreatment effects of different micro-polluted raw water by up-flow biological aerated filter with double-layer ceramic(UBAF) was carried out. It was demonstrated that UBAF could be effectively applied for pretreating different micro-polluted raw water located in the Pearl River downstream. The removal efficiency of ammonia nitrogen and nitrite nitrogen in UBAF was the best. The average removal rates of ammonia nitrogen respectively were 89.35%, 64.42% ,28.56% when ammonia nitrogen concentrations of different micro-polluted raw water respectively were 2.15 -4.76 mg·L^-1,0.52-2.33 mg·L^-1,0.16- 1.04 mg·L^-1, and the outlet ammonia nitrogen concentration all could meet the requirement of GB 5749-2006:the concentration of ammonia nitrogen was less than 0.5mg/L.The average removal rate of nitrite nitrogen in UBAF was 85.9%. However, the average removal rates of CODMn and turbidity were respectively only 16.77%-25.22% and 25.56%-35.59%.
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