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原水cod
    Under the conditions of temperature 15℃~18℃, the influent COD concentration 1500~1580mg/L, colour 400 times, AMB HRT 8h and ABO volumetric loading rates 4. 0kg COD/m3. d, the percentage of removing colour and COD are 96. 9%and 93.4% respectively.
    在15℃~18℃的条件下,当原水COD浓度为1500mg/L~1580mg/L,色度400倍,厌氧水力停留时间8h,好氧容积负荷率4.0kgCOD/m~3(填料)。 d时,色度及COD的去除率分别为96.9%及93.4%。
    Free flocculation state was recognized when influent COD10000mg/L,while crowded state was if influent COD>10000mg/L.
    以原水COD10000mg/L为界,呈自由絮凝和拥挤絮凝两种状态。
    In the treatment of wastewater from azo dye production by electrolysis in a bipolar packed bed cell, the removal efficiencies of color and COD came up to over 99% and 78.4%~ 97.2% respectively under the conditions of 200mg/L of influent COD, 30V of cell tension, 2h of retention time and 1∶4 of conductive particles to insulating particles(V/V).
    用复极性固定床电解槽处理偶氮染料废水,在正交试验确定的原水COD200mg/L、槽电压30V、停留时间2h、导电颗粒与绝缘颗粒体积比14的条件下,色度和COD去除率分别达到99%以上和78.4%~97.2%。
    When the influent COD was 7000~51550 mg/L, pH 4~13, the removal efficiency of anaerobic reactor was about 50%, that of MBR was about 80%, the effluent quality could meet the national wastewater discharge standard.
    当原水 COD为 70 0 0~ 51 550 mg/L ,p H值为 4~ 1 3时 ,厌氧池去除效率保持在 50 %左右 ,膜生物反应器处理效率保持在 80 %以上 ,COD等指标可以达到排放标准。
    Under free state,influent COD:PAC:PAM showed 7.5:1∶0 013 and COD and SS removal were over 85%and 95%respectively But under crowded state,the dose fo PACand PAM increased more than free state It was suggested that WSE should be treated under free state.
    在自由絮凝时,原水COD:PAC:PAM呈75:1:0013,COD、SS去除率分别达85%,95%以上。 拥挤絮凝时PAC、PAM的投量激剧增加。
    Now the status in bio-technique of treating wastewater from traditional Chinese medicine production was that all the influent COD concentration was under 5 000mg/L and its quality was easy to be bio-treated.
    生产性试验突破了中药废水生物处理技术始终停留在原水COD低于5000mg/L、可生化性良好的易处理废水上的研究现状.
    TSSBR avoided the inhibition of the high organic loading to nitrification and nitrification rate was two times of that in SBR under the high influent COD.
    在原水COD浓度较高的情况下,TSSBR可有效克服高COD浓度对硝化反应的抑制,硝化反应速率是传统SBR的2倍。
 

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