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首页> 外文会议>International Water Association(IWA) Conference; 20050518-20; Xi'an(CN) >Biological phosphorus removal with nitrite as election acceptor
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Biological phosphorus removal with nitrite as election acceptor

机译：以亚硝酸盐为选择受体的生物除磷

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Biological phosphorus removal with nitrite was studied in a Sequencing Batch Reactor (SBR). The results showed that nitrite could be used as electron acceptor in denitrifying phosphorus removal. Feed mode of nitrite had significant influence on denitrifying phosphorus removal. Anoxic phosphorus assimilation rate could be reached 10.44mgP/gSS·h and the percentage of anoxic phosphorus assimilation amount was more than 97% with continuous feed mode. Granular sludge with denitrifying phosphorus removal activity was cultivated in the SBR. The effects of different operational conditions on formation of granules were studied also, such as COD loading, settling time, HRT and so on. The average dimension of granules was 315 μm, SVI of sludge was 25～40mL/g, COD removal loading reached 1.5 kgCOD/m~3· d, nitrogen and phosphorus removal efficiency was more than 90% respectively.
机译：在定序分批反应器（SBR）中研究了亚硝酸盐对生物除磷的影响。结果表明，亚硝酸盐可以作为电子受体进行脱氮除磷。亚硝酸盐的进料方式对脱氮除磷有重要影响。连续喂料方式下，缺氧磷同化率达到10.44mgP / gSS·h，缺磷同化率达97％以上。在SBR中培养了具有反硝化除磷活性的颗粒污泥。还研究了不同操作条件对颗粒形成的影响，如化学需氧量，沉降时间，HRT等。颗粒平均粒径为315μm，污泥的SVI为25〜40mL / g，COD去除量达到1.5 kgCOD / m〜3·d，脱氮除磷效率分别达到90％以上。

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