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    Hydraulic retention time(HRT) was 24 h during the experiment,The influent COD concentration was 500,1 000,1 500,2 000 mg/L during the start-up,the COD removal reached 93.48 % and kept stable after 42 days,the start-up finished.
    进水COD浓度分别为500,1 000,1 500,2 000 mg/L,42天后COD去除率达到93.48%,并且保持稳定,反应器启动完成。
    Chemical fiber tail wastewater was treated by facultative anaerobe-PACT process, when the influent COD was 250~450mg/L,the effluent COD≤100mg/L and removal rate reached to over 80%; various indexes could meet the first class standard in the national Sewage Comprehensive Discharge Standard (GB8978-1996).
    采用兼氧-PACT工艺对南京化纤厂化纤尾水进行处理,当进水COD为250~450mg/L时,出水COD≤100mg/L,去除率达到80%以上,各项指标均能达到国家《污水综合排放标准》(GB8978-1996)中的一级标准。
    With HRT=6 h and influent COD increased gradually,particle sludge was tamed then effluent pH and COD removal rate was heading for stability 20 days after the operation.
    在水力停留时间(HRT)6 h,进水COD逐渐提高的情况下对颗粒污泥进行驯化,20 d后pH、COD去除率趋于稳定。
    The results show that under the conditions that the temperature is(36±1) ℃,influent COD is 25 000 mg/L and pH is between 4.0 and 4.5,a high production capacity of acetic acid is achieved in the anaerobic activated sludge when using multiple feedings and pH of 4.3.
    结果表明,在进水COD约为25 000 mg/L、温度为(36±1)℃、控制系统pH值在4.0~4.5的条件下,采用多次进料的培养方式,厌氧污泥的产酸效果较好,乙酸为主要末端发酵产物,且pH=4.3时系统的产乙酸效果最佳。
    An A/O/O biofilm process was studied for the treatment of Nylon-6 wastewater,and influence factors like nitrate recirculation ratio,HRT(Hydraulic retention time),DO as well as the influent COD and TN were investigated.
    试验采用A/O/O生物膜系统对锦纶废水进行处理,考察了硝化液回流比、水力停留时间、DO和进水COD及TN浓度对系统处理效果的影响。
    When influent COD was 979. 2-1316. 7mg/L, discharged COD was reached to 166. 7 - 229.2 mg/L corresponding to 82. 9%-85. 4% COD removed rate.
    SBR工艺能有效去除该废水的COD,当进水COD浓度为979.2~1316.7mg/L时,出水COD为166.7~229.2 mg/L,去除率达82.9%~85.4%。 SBR处理后水质的色度略有增加。
    Moreover, while the influent COD concentration raised to 8 000 mg/L (OLR 24 kg/(m3·d)), the hydrogen yield of the reactor dropped quickly.
    当进水COD浓度提高到8 000 mg/L(OLR为24 kg/(m3·d))时,系统产氢能力迅速下降。
    When the influent COD concentration was kept at 6 000 mg/L, the hydrogen yield increased from 13.1 L/d to 16.2 L/d while HRT dropped from 8 hours (OLR 18kg/(m3·d)) to 6 hours(OLR 24 kg/(m3·d)).
    在维持进水 COD浓度为6 000 mg/L、(35±1)℃不变的条件下,HRT为6 h(OLR为24 kg/(m3·d))时,CSTR发酵产氢系统的最大产氢量为16.2 L/d;
    Measurements of Influent COD Components for Activated Sludge Models
    活性污泥模型进水COD组分的测定方法
    Effect of Influent COD Concentration and C/N Ratio on Denitrification
    进水COD浓度及C/N值对脱氮效果的影响
    LowBOD/COD. The result showed that salt-tolerant sludge could be achieved bytaking salt as selection pressure. When the influent COD was 3429mg1Lwith the concentration of sodium chloride 45000mg/L, the volumetricloading could reached to 1 .55kgCOD/m3 d with the effluent COD 11 5mg/L.
    结果表明以盐份作为选择压力,驯化出能在NaCl浓度为45000mg/L环境中正常运行的耐高盐污泥,在反应器进水COD为3429mg/L,出水COD达到115mg/L,容积负荷达到1.55kgCOD/m~3d。
    When the influent COD was 1860 mg/1 in average, the removal rates of U shape and L shape membrane were respectively 84.1%, 81.2%.
    进水COD平均1860mg/l,U型、L式膜平均去除率分别为84.10%,81.20%;
    At influent COD of 450~580mg/L, NH3-N of 180~200mg/L, the effluent COD was less than 150 mg/L, NH3 -N was less than 25 mg/L, the COD removal efficiency was from 73.8% to 83.4%, NH3-N removal efficiency was from 82.1% to 89.7%.
    当进水COD=450~580mg/L,NH_3—N=180~200mg/L时,处理后出水COD<150mg/L,NH_3—N<25mg/L,COD去除率73.8~83.4%,NH_3—N去除率82.1~89.7%。
    After 12-day-low-volume irrigation, the activity of microbe was improved so obviously that COD removal ratio reached 95% when the influent COD concentration was 16000~24000mg/l.
    试验用垃圾经过12天的回灌驯化后,微生物活性显著提高,进水COD浓度为16000~24000mg/l时,去除率达到95%。
    Economic and technical analysis of membrane bioreactor were investigated. The start up of the membrane bioreactor could be finished in 7 days, when the operating conditions were: the influent flux 8.5L/d, the HRT 3.4h,the influent COD 161.8-210.8 mg/L, the volume loading 0.15-0.20kgCOD/(m3·d),the influent temperature 18.2-20.0℃.
    膜生物反应器采用连续进水方式,在进水量为8.5L/d,水力停留时间(HRT)为24h,进水COD浓度为161.8~210.8mg/L,进水负荷为0.15~0.20kgCOD/(m~3·d),水温为18.2~20.0℃的条件下,7日后完成启动。
    When the operating conditions was the influent COD 219.3-393.1 mg/L, the influent flux were increased gradually from 8.5L/d to 61.5L/d, the volume loading was increased from 0.23kgCOD/(m3·d) to 2.97kgCOD/(m3·d), the average COD removal efficiency was 93.7%.
    此后,进水COD浓度为219.3~393.1mg/L,进水量由8.5L/d逐步增至61.5L/d,容积负荷相应地由0.23kgCOD/(m~3·d)逐渐增加至2.97kgCOD/(m~3·d),反应器对COD的平均去除率为93.7%。
    1. In startup period, influent COD 1 000mg/L, SO42- 200mg/L, ASBR start-up was completed in 60 days.
    1.启动阶段进水COD 1000mg/L,SO_4~(2-) 200 mg/L,即COD/SO_4~(2-)为5时,ASBR由淘洗后的厌氧颗粒污泥启动,经过60天的时间SO_4~(2-)的去除率达到90%以上,启动成功;
    The influent COD concentration should be more than 1000mg/L to start-up the reactor.
    启动反应器进水COD浓度不小于1000mg/L为宜。
    It could treat wastewater with influent COD concentration of 18086mg/L to that with COD concentration of 4976mg/L and its COD removing rate was 72.46%.
    当VLR为4.5kgCOD/(m~3.d),进水COD为18086mg/L时,出水COD为4976mg/L,COD去除率为72.46%。
    The results showed that: through 140 days’ operation after inoculation of granular sludge, the volumetric COD loading of the reactor reached from 0.5kgCOD/m3·d to17.80kgCOD/m3·d, the influent COD of UASB reached from 1538.5mg/L to 6894mg/L, the COD removal efficiency was reached 81.6 percent.
    UASB反应器接种颗粒污泥后,经过约140d的运行,容积负荷由0.5kgCOD/(m3·d)提高到17.80kgCOD/(m3·d),进水COD浓度由1538.5mg/L提高到6894mg/L,沼气容积产气率达3.10 m3/(m3·d),COD去除率为81.6%。
 

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