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influent cod
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  进水cod
    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。
短句来源
    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。
短句来源
    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。
短句来源
    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。
短句来源
    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。
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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%。
短句来源
    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。
短句来源
    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%。
短句来源
    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。
短句来源
    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。
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  “influent cod”译为未确定词的双语例句
    The results showed that the feed loading by influent COD 0~900(mg·L~(-1)) could effectively control the growth of sludge.
    结果表明,在30 min的较长污泥沉降时间下,通过进料COD 0-900 mg. L-1的负荷调控,可以有效控制反应器内污泥生长.
短句来源
    Results showed that when influent COD was 4516 mg·L-1,effluent from SBR was reduced to 1752 mg·L-1.The removal rate reached 61.2%.
    L-1时,SBR出水COD可降为1752 mg. L-1,去除率达到61.2%;
短句来源
    · With the parameter (flow-in Ih, aeration 9h, settling 1h, flow-out and unused 1h), when influent COD was 1317 ~ 5934mg/L and the load was 0.46 ~ 1.49kgCOD/kgMLSS. d, the capability of sludge settlement was favorable andthe removing rate of COD was more than 92%, whose variation coefficient was only 1.82%. ·The PAC had distinct effect on the SBR process.
    5.SBR耐冲击负荷能力强,即在变浓度(1317~5934mg/L)、变负荷(0.46~1.49kgCOD/kgMLSS.d)状况下,按进水1h,限制性曝气9h,沉淀1h,出水、闲置1h运行,污泥沉降性能良好,系统对COD的去除率均在92%以上,其变异系数仅为1.82%。
短句来源
    When the influent COD and TOC iS 3 00.700 and1 00-350mg/L,respectively,the effluent COD<1 00mg/L,TOC<20mg/L,and theremoval rate in terms of COD and TOC is above 80%and 90%.
    连续运行的结果显示,反应器对有机物的去除效率很高,当进水的COD及TOC分别为300一700和100—350mg/L时, 处理水的COD<100mg/L,TOC<20mg/L,其相应的去除效率分别为80%和90%以上。
短句来源
    The stable COD removal of 64% and the production rate of CH4 was 0.25m3/m3.d could be maintained under the conditions of OLR = 4.4 kgCOD/m3. d and influent COD concentration of 4500mg/L.
    当进水OLR为4. 4 kgCOD/m3. d、COD为4500mg/L左右时,COD去除率可稳定在64%,产气率可达0. 25m3/m3. d。
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  influent cod
Domestic wastewater with an influent COD of 160 to 327 mg L-1 was evaluated for treatment by the Biofilm Airlift Suspension-reactor (BAS-reactor).
      
Increases in influent COD combined with transient temperature reductions also caused a significant reduction of NTA removal.
      
Increasing the influent COD had a slight effect on NTA removal.
      
The compact biomass structure allowed halving the settling time, the initial reactor volume, and doubling the influent COD concentration.
      
Anaerobic filter removed up to 70% of the influent COD concentrations at organic loading rates (OLR) of 9.5 and 14.3 (g/l d) and sulphate up to 80% at OLR of 7.1 and 14.3 (g/l d) whereas the pH ranged between 7.0 and 7.5.
      
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Some characteristics of Anaerodic attached film expanded bed(AAFEB)reactor are studied when highly concentrated organic wastewater is treated at a moderate temperature range.When the biofilm in the reactor grows well, the organic load rate(OLR)of the reactor can be raised to 70 KgCOD/m~3·d, COD removal efficiency to about 90% The reactor is very insensitive to temperature changes.The COD removal efficiency does not change noticeably. when the influent COD concentration changes intensly.The...

Some characteristics of Anaerodic attached film expanded bed(AAFEB)reactor are studied when highly concentrated organic wastewater is treated at a moderate temperature range.When the biofilm in the reactor grows well, the organic load rate(OLR)of the reactor can be raised to 70 KgCOD/m~3·d, COD removal efficiency to about 90% The reactor is very insensitive to temperature changes.The COD removal efficiency does not change noticeably. when the influent COD concentration changes intensly.The influence of shock loading is very little effect on the COD removal efficiency. The rate of removal of substrate by the biofilm follows a first—order reaction for a certain range of COD. The constant of specific substrate removal rate is 1.1×10~(-3)1/mg·d.

本文研究了厌氧附着膜膨胀床(以下简称AAFEB)反应器在中温下处理高浓度有机废水的部分性能。当生物膜形成并良好生长时,该系统的有机负荷可以达到70kgCOD/m~3载体·天.COD去除率为90%左右。 AAFEB反应器对环境温度变化的反应非常迟钝,COD去除率并不随着进水COD浓度的变化而发生比较明显的变化,并且具有良好的耐有机负荷率冲击的能力。在一定的基质浓度范围内,生物膜的此基质降解速度与基质浓度呈一级动力学关系,动力学方程为:

This paper reports the methods and the main results of disposing sugarcane molasses wastwater with two-phase anaerobic system and UASB + AF reactor.When reaction temperature was 35℃ and volumetric loading rate was l2gCOD/l.d,the concentrations of influent COD was 10,000 mg/l, pH value was 4.5, HRT was 0.83 days, COD removel rate was 67-73%, volumetric biogas production rate was over 3l/l·d, CH_4 content was about 70%, biogas yield of 1 g COD was 0.251

本文报道应用两段系统和上流式污泥床与过滤层结合型反应器的厌氧消化工艺处理甘蔗糖蜜酵母废水的研究方法及其获得的良好结果。当反应温度为35℃,反应器容积负荷为12gCOD/1·d时,进水COD_(cr)浓度为10,000mg/l,pH值为4.5,水力停留时间为0.83天,出水COD_(cr)浓度为3300—2700mg/l,pH值为7.1,COD_(cr)去除率为67—73%,反应器容积产气率在31/1.d以上,甲烷含量为70%左右,每克COD的沼气产量为0.251。

A lab-scale anaerobic attached film expanded bed reactor for treating wastewater was set up to study its operation performance under steady state. According to the operating characteristics of the AAFEB reactor and the kinetic theory of the conventional completely mixed activated sludge process,the process kinetic models of AAFEB reactor under steady state operation have been developed, which include substrate utilization kinetic model, microbial growth kinetic model and methanoge-nic kinetic model. By analyzing...

A lab-scale anaerobic attached film expanded bed reactor for treating wastewater was set up to study its operation performance under steady state. According to the operating characteristics of the AAFEB reactor and the kinetic theory of the conventional completely mixed activated sludge process,the process kinetic models of AAFEB reactor under steady state operation have been developed, which include substrate utilization kinetic model, microbial growth kinetic model and methanoge-nic kinetic model. By analyzing the data obtained from operation under steady state and the kinetic models, best estimates of kinetic parameters, sensitivity analysis for model parameters, model verification and kinetic simulation of operating parameters such as HRT, influent COD concentration and sludge concentration which affect operating performance of an anaerobic digester, were investigated.

从AAFEB反应器运行工况特点和全混合活性污泥动力学的理论出发,建立了AAFEB反应器稳态运行的过程动力学模型。并作了动力学模型参数估值、灵敏度分析,模型检验,以及运行参数影响的动力学模拟.

 
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