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短程硝化/厌氧氨氧化/全程硝化工艺处理焦化废水
Authors
曹宏斌
李海波
+3 more
李玉平
林琳
薛占强
Publication date
1 January 2011
Publisher
Abstract
通过对短程硝化和厌氧氨氧化工艺的研究,开发了短程硝化/厌氧氨氧化/全程硝化(O1/A/O2)生物脱氮新工艺并用于焦化废水的处理。控制温度为(35±1)℃、DO为2.0~3.0mg/L,第一级好氧连续流生物膜反应器在去除大部分有机污染物的同时还实现了短程硝化。考察了HRT、DO和容积负荷对反应器运行效果的影响。结果表明,当氨氮容积负荷为0.13~0.22gNH 4+-N/(L.d)时,连续流反应器能实现短程硝化并有效去除氨氮。通过控制一级好氧反应器的工艺参数,为厌氧反应器实现厌氧氨氧化(ANAMMOX)创造条件。结果表明,在温度为34℃、pH值为7.5~8.5、HRT为33 h的条件下,经过115 d成功启动了厌氧氨氧化反应器。在进水氨氮、亚硝态氮浓度分别为80和90 mg/L左右、总氮负荷为160 mg/(L.d)时,对氨氮和亚硝态氮的去除率最高分别达86%和98%,对总氮的去除率为75%。最后在二级好氧反应器实现氨氮的全程硝化,进一步去除焦化废水中残留的氨氮、亚硝态氮和有机物。O1/A/O2工艺能有效去除焦化废水中的氨氮和有机物等污染物,正常运行条件下的出水氨氮<15 mg/L、亚硝态氮<1.0 mg/L,COD降至124~186 mg/L,出水水质优于A/O生物脱氮工艺的出水水质
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/46829
Last time updated on 11/04/2021
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/10610
Last time updated on 09/11/2016
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
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oai:ir.ipe.ac.cn:122111/46827
Last time updated on 11/04/2021
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/31390
Last time updated on 05/12/2019