滤速对悬浮填料曝气生物滤池处理效果的影响

发布时间：2018-01-07 17:30

本文关键词：滤速对悬浮填料曝气生物滤池处理效果的影响　出处：《给水排水》2017年S1期 　论文类型：期刊论文

【摘要】：应用新型悬浮填料曝气生物滤池对广州市某污水处理厂的实际污水进行中试试验,控制滤速分别为6m/h、8m/h、10m/h、12m/h,以考察工艺在不同滤速下对氨氮,总氮和COD的去除能力。试验结果表明,在悬浮填料生物滤池滤速为10m/h、升流式悬浮填料柱曝气量为1m~3/h、降流式悬浮填料柱到升流式悬浮填料曝气柱回流比为100%、砂滤池滤速为7m~3/h的工况下,可达到最优处理效果。进水氨氮、总氮、COD分别为7.40~15.05mg/L、14.02~22.42mg/L、165~225mg/L,砂滤出水的氨氮、总氮、COD分别低于0.42mg/L、10mg/L和20mg/L,平均去除率分别达到96.88%、55.92%和91.47%。中试系统运行稳定,出水水质指标达到《城镇污水处理厂污染物排放标准》一级A标准。
[Abstract]:A pilot experiment was conducted in a wastewater treatment plant in Guangzhou by using a new suspended filler aerated biofilter. The controlled filtration rate was 6 m / h ~ 8 m / h ~ 10 m / h ~ 10 m / h ~ (-1) ~ (12) m 路h ~ (-1) 路h ~ (-1) 路h ~ (-1) ~ (-1). The removal capacity of ammonia nitrogen, total nitrogen and COD at different filtration rates was investigated. The results showed that the filtration rate of the biofilter was 10 m / h. The aeration rate of upflow suspending packing column is 1 mm3 / h, the reflux ratio of downflow suspended packing column to upflow suspended packing column is 100, and the filter rate of sand filter is 7 mm3 / h. The influent ammonia nitrogen, total nitrogen and COD were 7.40 ~ 15.05 mg / L 14.02 mg / L, 22.42 mg / L, 165 mg / L and 225 mg / L, respectively. The ammonia nitrogen, total nitrogen and COD of sand filtered water were less than 0.42 mg / L 10 mg / L and 20 mg / L respectively, and the average removal rate was 96.88%. 55.92% and 91.47.The pilot system is running stably and the effluent quality index is up to the first class A standard of pollutant discharge standard of the municipal wastewater treatment plant.
【作者单位】：中交第四航务工程勘察设计院有限公司;华南理工大学环境与能源学院;
【分类号】：X703
【正文快照】： 0　引言易产生污泥膨胀、耐冲击负荷能力差等缺陷[3]。随着国家对城镇污水处理厂排放标准的提高和对环境污染曝气生物滤池(BAF)因其具有处理效率高、占地面积小、能治理力度的进一步加大,污水高效净化成为了当务之急。目前耗低,耐冲击能力强等优点受到研究者广泛关注。广东佛

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