| Sanitary Sewage Treatment with Jet Inner-loop Bioreactor |
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| 作者姓名： | Wen Qin-xue Chen Zhi-qiang Lu Bing-nan Wen Yan School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin China Environmental Protection Technology Ltd. of Harbin Institute of Technology Harbin China |
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| 作者单位： | Wen Qin-xue 1，Chen Zhi-qiang 1，Lu Bing-nan 1，Wen Yan 2 School of Municipal and Environmental Engineering，Harbin Institute of Technology，Harbin 150090，China; Environmental Protection Technology Ltd. of Harbin Institute of Technology，Harbin 150001，China |
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| 基金项目： | SupportedbytheMajorPlanofHarbinTechnologicalProgram (2 0 0 2AA4BS0 69) |
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| 摘 要： | 0 IntroductionThejetloopreactorhasthecharacteristicsofbothjetandloopflow .Ononehand ,theairsuckedinisdispersedintosmallgasbubblesbecauseoftheshearingforcecausedbythehighvelocityjet,producinganincreasedinterfacialcontactbe tweengasandliquid ,thusthemasstransferefficiencyisin creased .Ontheotherhand ,aregularloopflowisformedbecauseofmutualimpetusofbothjetandair lift,thusdramaticallyim provestheperformancesofmixture ,diffusion ,masstransferandheattransferofthematerial.Withoutmechanicdriving ,the…
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| 关 键 词： | 喷射内循环生物反应器 卫生污水 流量负荷 淤泥负荷 污水处理 |
| 收稿时间： | 17 June 2004 |
Sanitary sewage treatment with jet inner-loop bioreactor |
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| Wen Qin-xue ,Chen Zhi-qiang ,Lu Bing-nan ,Wen Yan School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin ,China, Environmental Protection Technology Ltd. of Harbin Institute of Technology,Harbin ,China.Sanitary Sewage Treatment with Jet Inner-loop Bioreactor[J].Wuhan University Journal of Natural Sciences,2004,9(3):388-394. |
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| Authors: | Wen Quin-xue Chen Zhi-qiang Lu Bing-nan Wen Yan |
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| Institution: | (1) School of Municipal and Environmental Engineering, Harbin Institute of Technology, 150090 Harbin, China;(2) Environmental Protection Technology Ltd. of Harbin Institute of Technology, 150001 Harbin, China |
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| Abstract: | A jet inner-loop bioreactor (JIBR) was used to treat synthetic sanitary sewage with low, medium and high COD load. The experimental
results show that it could meet discharge standard at 20–30 min of HRT (hydraulic retention time) for low COD concentration
and 60–120 min of HRT for medium and high COD concentration. The maximal COD volume loading and COD sludge loading of 27 kg·m−3·d−1 and 5 kg/d per kg MLSS were acheived respectively, that were 10–20 times higher than those of traditional wastewater treatment
processes. The BOD5 removal efficiency was more than 90% and NH
4
+
−N more than 85%. The study on the activity showed that the oxygen consumption rate of the activated sludge in the JIBR was
39. 13 mg·L−1·h−1, which was 1. 7 times higher than that of the SBR (Sequencing Batch Reactor) and the dominant bacteria in jet inner-loop
bioreactor wasPseudomonas species.
Foundation item: Supported by the Major Plan of Harbin Technological Program (2002AA4BS069)
Biography: Wen Qin-xue (1977-), femal, Ph. D canaidate, research direction: wastewater treatment. |
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| Keywords: | jet inner-loop bioreactor sanitary sewage volume loading sludge loading |
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