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    the results shows that the rate of COD elimination by ABR reactor was upper than 79 percentage in lab condition,even though under the condition of organic mater load being 5.05 kg COD/(m3·d),the rate of COD elimination exceeded 75 percentage.
    研究表明,在实验范围内,反应器的COD去除率在79%以上,即使在有机负荷为5.05kg COD/(m3.d)时,COD去除率也可以达到75%以上;
    under the condition of residence duration being 24 h,the rate of COD elimination in earlier phase was higher in later phase with ratio of BOD5/COD being 0.50.
    当水力停留时间为24h,提高有机负荷ABR反应器的COD去除率先升高后降低; BOD5/COD的比值可达0.50。
    The COD elimination rate in A_1 segment was raised from 15.9% to 23.9% and from 12.3% to 22.8% while the COD volume loading of A_1 segment was 2.54(kg/(m~3·d)) and the HRT of A_1 was 9.45 h and 7.56 h respectively. The recycling of sludge is useful to color removal of the system.
    在A1段COD容积负荷2.54 kg/(m3.d)、水力停留时间为9.45 h和7.56 h条件下,A1段COD的去除率分别由15.9%提升至23.9%,12.3%提升至22.8%.
    Under the optimal condition, electrocoagulation has better removal to bacterium, organic compound, turbidity, total phosphorus in slightly polluted water: the disinfecting rate can be up to 80%, the COD elimination efficiency is 60%-70%, the removal rate of turbidity can be more than 90%, the total phosphorus is 70%-80%, the ammooinacal nitrogen is 60%-70%.
    在最佳条件下,电凝聚对微污染水中的细菌、有机物、浊度、总磷等均有较好的去除效果:杀菌率可达80%,COD上除率为60%-70%,浊度可达90%以上,总磷为70%-80%,氨氮为60%-70%。
    The quality of polluted water from Kuihe was obvioudy improved by culturing Hydrodictyon and Cladophora in it after self-pusification. The oxygon content of purified water increased from 0. 33 mg/L to 11. 1 mg/L and ratio of COD elimination 98. 6 % two weeks after treatrnent.
    运用自净及自净后放养水网藻和刚毛藻的方法对奎河污水进行处理.处理后的污水水质得到了明显改善,溶氧量由原来的0.33mg/L增长至11.10mg/L,COD去除率为98.6%。
    In the test engineering bacteria LEY3 degradating PTA contained in wast water, the rate of COD elimination was 66%~91%.
    用LEY3对含PTA生产废水作降解试验,COD的去除率在66%~91%之间。
    Adjust the pH of drilling wastewater by high content H 2SO 4,then put the lime emulsion into it to make the pH be 9.0,the COD elimination rate will be 50%,and the suspended solids elimination rate will be above 80%.
    以浓H2SO4 调节废水的pH值至15,加入石灰乳中和使pH为9,可使CODcr的去除率达到50% ,悬浮物的去除率达到80% 。
    COD elimination efficiency of the treated water can reach 75% or more, and the transmittancy can reach 92%~99%.
    用自制阳离子聚丙烯酰胺 (PDA)与PAC配合处理废纸再生造纸废水 ,出水COD去除率达 75 %以上 ,透过率达 92 %~ 99%。
    The ratio of ultrasonic degradation of methyl orange in the acidic condition of pH=1.0~3.0, irradiated with the ultrasound of 25 kHz frequency and power input of 1.0 W/cm~(2) and within 80 min can get to 98% and its COD elimination to 99%, respectively.
    SiO2掺杂TiO2催化剂用量在0.5~1.0g/L之间,超声波频率25kHz,输出功率1.0W/cm2,pH为1.0~3.0时,在甲基橙水溶液初始浓度20mg/L的条件下,80min,降解率达到了98%以上,COD的去除率也达到了99.0%.
    After the treatment for the life-dirty water by polyaluminium chloride ratio of elimination for feculence degree is 0.978, ratio of chroma elimination is 0.625, ratio of COD elimination is 0.516, by means of the coagulation-flocculation jar test.
    通过混凝杯罐试验,用聚合氯化铝对所采生活污水进行处理后,浊度去除率达到0.978,色度去除率达到0.625,COD去除率达到0.516。
    The COD elimination rates in the simulation wastewater were 66.6 % and 72.2 % respectively with H_6 and J_1.The elimination rates of organic chlorine were 76.9 % and 64.5% respectively.
    H6、J1菌株对有机氮去除率分别为76.9%和64.5%;
 

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