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  • 吉飞,李继,李永.多级流化床-曝气生物滤池中试处理高氨氮废水[J].环境工程学报,2019,13(7):1584-1591.DOI:10.12030/j.cjee.201809188    [点击复制]
  • JI Fei,LI Ji,LI Yong.Pilot test of multi-stage fluidized bed-biological aerated filter for high-strength ammonia-nitrogen wastewater treatment[J].,2019,13(7):1584-1591.DOI:10.12030/j.cjee.201809188   [点击复制]
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多级流化床-曝气生物滤池中试处理高氨氮废水
吉飞1,李继2,李永2
0
(1.深圳市深投环保科技有限公司,深圳 518049;2.哈尔滨工业大学深圳研究生院,深圳 518055)
摘要:
采用多级流化床-曝气生物滤池组合工艺,以高氨氮工业废水为处理对象,研究了中试系统的启动方法、稳定运行阶段对污染物的去除效能及与传统活性污泥法相比的优势。结果表明:采用控制进水流量和逐步增加进水负荷的运行方法,历时近50 d,可实现中试系统的启动;启动阶段,系统对COD和NH4+-N的平均去除率分别为68.74%和97.92%,出水COD和NH4+-N的质量浓度平均分别为176.35 mg·L-1和13.52 mg·L-1;稳定运行阶段,系统在进水流量为2.0 m3?d-1 的工况下,对COD和NH4+-N的平均去除率分别为92.66%和99.32%,出水COD和NH4+-N的质量浓度平均分别为 152.24 mg·L-1和1.32 mg·L-1,其中,出水的NH4+-N可以稳定达到地表水IV类水标准。与传统活性污泥法工艺相比较,该中试系统可以实现对COD的去除率从85.37%增加到92.66%,对NH4+-N的去除率从72.53%增加到99.32%。
关键词:  高氨氮废水  工业废水  生物流化床  曝气生物滤池
DOI:10.12030/j.cjee.201809188
投稿时间:2018-09-29
基金项目:
Pilot test of multi-stage fluidized bed-biological aerated filter for high-strength ammonia-nitrogen wastewater treatment
JI Fei1,LI Ji2,LI Yong2
(1.Shenzhen Shentou Environment Technology Co. Ltd., Shenzhen 518049, China;2.Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China)
Abstract:
The combination pilot process of multi-stage fluidized bed-biological aerated filter was used to treat high-strength ammonia-nitrogen industrial wastewater. The start-up method of this pilot system and pollutants removal efficiency during its stable operation stage were studied, and its superiority over traditional activated sludge processes were also determined. The results showed that the start-up of this pilot system could be accomplished within about 50 d through controlling the flow rate and gradually elevating the inflow load. At the start-up stage, the removal efficiencies of COD and NH4+-N were 68.74% and 97.92%, respectively. The COD and NH4+-N concentrations in effluent were 176.35 mg·L-1 and 13.52 mg·L-1, respectively. At the stable stage with the flow rate of 2.0 m3·d-1, the average removal efficiencies of COD and NH4+-N were 92.66% and 99.32%, respectively, and the average COD and NH4+-N concentrations in effluent were 152.24 mg·L-1 and 1.32 mg·L-1, respectively. Of which the NH4+-N concentration in effluent could meet the requirement of class IV water standard for surface water. Compared with the traditional activated sludge process, the pilot system of multi-stage fluidized bed-biological aerated filter could improve the COD and NH4+-N removal efficiencies from 85.37% to 92.66% and from 72.53% to 99.32%, respectively.
Key words:  high-strength ammonia-nitrogen wastewater  industrial wastewater  biological fluidized bed  biological aerated filter