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influent ph
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  进水ph
     So BOD5/COD Cr values from 0.21 to 0.30 broadening the range of influent pH adaptation,COD Cr removal rate reached 85.7%,BOD 5 removal rate reached 80.6%,and the effluent quality is stable.
     使BOD5/CODCr值由0.21提高到0.30,对进水pH适应范围变宽,CODCr去除率达到85.7%,BOD5去除率达到80.6%,且出水水质稳定。
短句来源
     When the UASB influent pH is 4-5,COD is 8 900-12 100 mg/L and BOD is 4 500-5 000 mg/L,the volumetric COD loading rate reaches 10 kg/(m3·d) and COD removal rate is 85%. In the process,COD and BOD removal rate reaches 97.4% and 98.6%,the effluent COD and BOD is less than 300 mg/L and 30 mg/L.
     当进水pH4~5、COD8900~12100mg/L和BOD4500~5000mg/L时,UASB反应器COD容积负荷达到10kg/(m3.d),COD去除率达到85%,系统COD和BOD去除率可分别达到97.4%和98.6%,出水COD<300mg/L,BOD<30mg/L。
短句来源
     The influent pH was generally kept at 9.0 ~10.5,and the pH within the reactor remained stable at below 9.0.Therefore,the system could adapt to the impact of pH.
     进水pH稳定在9.0~10.5,而反应器的pH一直稳定在9.0以下,体系对pH变化造成的冲击比较适应.
短句来源
     The wastewater produced from Hongqiao Dye Plant, Jiangsu was treated with coagulation sedimentation-hydrolysis-contact oxidation-biocarbon facility. The design capacity was 1 200 m3/d. The water quality of influent pH, CODCr, BOD5 , SS and Color were 6.7, 495 mg/L, 129mg/L, 120 mg/L and 200 respectively.
     江苏虹桥染色有限公司采用混凝沉淀-水解-接触氧化-生物碳工艺处理染色废水,设计规模为1200m3/d,进水pH=6.70,CODCr=495mg/L,BOD5=129mg/L,SS=120mg/L,色度=200倍。
短句来源
     When effluent pH is 5~8.5, the effluent manganese is < 0.1 mg/L. When pH is < 5, the effluent manganese will be increased sharply with the decrease of influent pH.
     当出水pH值为5~8.5时,出水含锰量<0.1mg/L,但当pH<5时,出水含锰量随进水pH值的降低而急剧增加;
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  “influent ph”译为未确定词的双语例句
     The experiments show that when the influent pH is 6.8,the dosage of cationic aluminum polychloride (PAC)is 400 mg/L and that of polyacrylamide (PAM)is 12 mg/L,the removal rates of COD and color are 37.8% and 72.7% respectively;
     在废水pH为6.8、聚合氯化铝(PAC)和阳离子聚丙烯酰胺(PAM)的用量分别为400和12mg/L条件下,废水COD、色度去除率分别为37.8%、72.7%;
短句来源
     Under the conditions of influent pH 7. 5 - 8. 5, reaction time 30 min, rectorite dosage 12 g/L, the mass concentration of ferrite is reduced from 5 mg/L to 0.08 mg/L with the removal rate 98% .
     在废水pH为7.5-8.5、反应时间为30min、累托石投加量为12g/L的条件下,Fe(Ⅲ)质量浓度可由5mg/L降到0.08mg,/L,Fe(Ⅲ)的去除率最高为98.4%,外排废水符合GB8978—1996-级标准。
短句来源
     With the conditions of ZnO dosage 3mg/L,H_2O_2 dosage 14mg/L,influent pH 10.00,low potential lamp power 500W and radiation time 8h,the effluent COD is 154mg/L with more than 90% of removal rate.
     在ZnO加入量为3 g/L、H2O2加入量为14 g/L、pH为10.00的条件下,废水经功率500 W的低压汞灯照射8 h后,其COD为153.8 mg/L,COD总去除率可达90%以上。
短句来源
     Removal rates for COD and nitrobenzene reach 47% and 92% respectively under the conditions of the influent pH value of 2-3,H_2O_2 dosage of 500-600 mg/L and the pretreated effluent pH value adjusted to 7-8.Continuous mixing of wastewater was treated by SBR process and the final effluent quality can meet the national wastewater discharge standard.
     当原水的pH值为2~3、H2O2投加量为500~600 mg/L时,调节预处理出水pH值至7~8并经沉淀处理后,对COD和硝基苯类物质的总去除率分别可达47%和92%。 后续混合废水经SBR工艺处理后出水水质能满足国家污水排放标准。
短句来源
     Theoretical analysis and experimental study show that,on the condi-tion of COD>3000mg/L,SO_4~(2-)<5100mg/L,COD/SO_4~(2-)>4,the main effectof sulphate on anaerobic digestion of high strength organic wastewateris to increase the pH of the process continuously. In order to prevent pHfrom exceeding the pH ronge for methane producing bacteria growth,the influent pH must be decreased properly.
     本文所做的机理分析和试验研究表明,在COD>3000mg/L,SO_4~(2-)<5100mg/L,COD/SO_4~(2-)>4的条件下,硫酸盐对高浓度有机废水厌氧处理的影响主要是使发酵过程pH 值不断上升,为了防止pH 高出产甲烷菌生长的最佳范围,需适当降低进水的pH 值。
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  相似匹配句对
     , Ph.
     、早竹Ph.
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     , Ph.
     ,Ph.
短句来源
     pH of effluent water plants is lower than influent.
     植物系统的出水pH均比进水的低.
短句来源
     The operation and management was simple without adjusting pH of the influent and effluent water.
     操作管理简单 ,进水、出水均无需调节pH ;
短句来源
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  influent ph
Lowering the influent pH to 4, the influent Zn2+ concentration to 50mg/l and increasing the flow rate to 800ml/h (residence time: 2.6 min), resulted in decreased sorption capacities by 15.3, 7.7 and 9.6%, respectively.
      
An increase in pH between influent (pH 6.9) and effluents (pH 7.5) was observed.
      
For each temperature selected, the influent pH values were 7.6 (initial pH of the waste used) and 7.0.
      
Although the influent pH values were higher than the optimum range of autotrophic denitrification at 8.7~10.1, the effluent pH was stable at 7.2~7.9 due to the production of hydrogen ions during operation.
      
The influent pH and ionic strength will affect the effluent quality and removal efficiency for this filter.
      
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Theoretical analysis and experimental study show that,on the condi-tion of COD>3000mg/L,SO_4~(2-)<5100mg/L,COD/SO_4~(2-)>4,the main effectof sulphate on anaerobic digestion of high strength organic wastewateris to increase the pH of the process continuously.In order to prevent pHfrom exceeding the pH ronge for methane producing bacteria growth,the influent pH must be decreased properly.

本文所做的机理分析和试验研究表明,在COD>3000mg/L,SO_4~(2-)<5100mg/L,COD/SO_4~(2-)>4的条件下,硫酸盐对高浓度有机废水厌氧处理的影响主要是使发酵过程pH 值不断上升,为了防止pH 高出产甲烷菌生长的最佳范围,需适当降低进水的pH 值。

Without adding nitrogenous and phosphorous nutrients and adjusting influent pH, an anaerobic baffle reactor was used for treating alkaline straw-pulping black liquor has been studies. The result showed that under the conditions of HRT 10.6d. Nv 513kg CODcr/m3·d, and pH 13.6 and CODcr 56100mg/l in influent, the removal rate of CODcr could reach 42%, which was about 84% of the maximum available removal rate of anaerobic process for the black liquor treat-ment.

在不添加氮、磷营养盐和不调节进水pH值条件下,用厌氧折流板反应器(ABR)处理碱法草浆黑液。结果表明,在HRT=10.6d、Nv=5.3kgCOD_(Cr)/m~3·d、pH=13.6和COD_(Cr)=56100mg/L时,COD_(Cr)去除率为42%,达到厌氧处理法的最大去除率的84%。

Acidogenic dissimilation of synthetic starch wastewater (1 000~10 000 mg COD·L -1 ) was studied in a thermophilic (55 ℃) upflow anaerobic sludge blanket (UASB) reactor.The production of volatile fatty acids (VFA) was proportional to the chemical oxygen demand (COD) loading rate.The yield of VFA was around 0.28 g VFA/g COD over the COD loading rate from 1.25 to 30 g COD·L -1 ·d -1 and the hydraulic retention time from 8.8 h to 24 h.Distribution of organic acids,the contents of propionic and butyric...

Acidogenic dissimilation of synthetic starch wastewater (1 000~10 000 mg COD·L -1 ) was studied in a thermophilic (55 ℃) upflow anaerobic sludge blanket (UASB) reactor.The production of volatile fatty acids (VFA) was proportional to the chemical oxygen demand (COD) loading rate.The yield of VFA was around 0.28 g VFA/g COD over the COD loading rate from 1.25 to 30 g COD·L -1 ·d -1 and the hydraulic retention time from 8.8 h to 24 h.Distribution of organic acids,the contents of propionic and butyric acids in the effluent in particular were also dependent on the COD loading rate.The thermophilic UASB reactor showed a stable performance on hydrolysis and acidogenesis of starch as well as suspended solid removal at short hydraulic retention times and high influent pH(10~11),during the operation of 110 d.

研究了高温(55℃)升流式厌氧污泥床反应器对人工淀粉废水(COD=1000~10000mg·L-1)的酸化分解过程,揭示了高温厌氧条件下,淀粉生成有机挥发酸的转化规律和组成结构.在试验条件范围内,投配单位有机负荷形成的挥发酸产率约为常数,出水中挥发酸的组成与有机负荷相关,醋酸始终是挥发酸的主要成分.当COD负荷在17.55g·L-1·d-1以下时,丙酸生成量占第二位,但是当COD负荷超过18.38g·L-1·d-1时,丙酸的生成量下降,丁酸的生成量迅速上升.试验结果表明,用高温升流式厌氧污泥床反应器处理碱性(pH=10~11)淀粉废水,水解和酸化效率高,有机负荷大,水力停留时间短,且反应器运行稳定,无明显的污泥颗粒流失现象.

 
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