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influent ph
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  进水ph
    Under the experiment conditions, influent pH≤10.5 had hardly any effects on the activated sludge, which began to disperse and be inhibited under the conditions of influent pH≥11.1 and HRT<16h.
    试验条件下,进水pH≤10.5不会对活性污泥性能产生明显抑制; 进水pH≥11.1、水力停留时间(HRT)<16h时,活性污泥性能受到抑制,污泥出现离散,通过延长HRT可以减轻或消除抑制;
短句来源
    The results of experiment indicated that the suitable range of influent pH value is from 7.6 to 8.8,and the COD removal rate is between 29 percent and 40 percent,and the BOD_5COD_(Cr) value of outflow is raised to 0.45 from 0.35 of inflow.
    试验结果表明,进水pH值适宜范围为7.6~8.8,COD去除率在29%~40%之间,出水BOD5/CODCr由进水的0.35左右提高到0.45左右,为印染废水的达标排放处理的水解pH条件提供参考。
短句来源
    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
    Effect of Influent pH on Biodegradation Behavior in Dye Wastewater Treatment by Anaerobic-aerobic Membrane Bioreactor
    A/O MBR处理印染废水中进水pH值对降解性能的影响
短句来源
    Effect on Hydrolytic Decomposition for Pre-phase of Influent pH Value of Printing and Dying Wastewater
    折流式水解反应器处理印染前道废水进水pH的影响
短句来源
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  进水pH
    Under the experiment conditions, influent pH≤10.5 had hardly any effects on the activated sludge, which began to disperse and be inhibited under the conditions of influent pH≥11.1 and HRT<16h.
    试验条件下,进水pH≤10.5不会对活性污泥性能产生明显抑制; 进水pH≥11.1、水力停留时间(HRT)<16h时,活性污泥性能受到抑制,污泥出现离散,通过延长HRT可以减轻或消除抑制;
短句来源
    The results of experiment indicated that the suitable range of influent pH value is from 7.6 to 8.8,and the COD removal rate is between 29 percent and 40 percent,and the BOD_5COD_(Cr) value of outflow is raised to 0.45 from 0.35 of inflow.
    试验结果表明,进水pH值适宜范围为7.6~8.8,COD去除率在29%~40%之间,出水BOD5/CODCr由进水的0.35左右提高到0.45左右,为印染废水的达标排放处理的水解pH条件提供参考。
短句来源
    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
    Effect of Influent pH on Biodegradation Behavior in Dye Wastewater Treatment by Anaerobic-aerobic Membrane Bioreactor
    A/O MBR处理印染废水中进水pH值对降解性能的影响
短句来源
    Effect on Hydrolytic Decomposition for Pre-phase of Influent pH Value of Printing and Dying Wastewater
    折流式水解反应器处理印染前道废水进水pH的影响
短句来源
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  “influent ph”译为未确定词的双语例句
    As the influent pH is 10.0, MLSS 20 g/L, and HRT 9~10 h, the removal rates of COD could reach average 36.8%, and the BOD/COD ratio of influent to effluent could increase from 0.285 to 0.447, and the biodegradability of wastewater is improved obviously.
    结果表明 ,调节原水 pH值为 10左右 ,污泥质量浓度为2 0 g/L ,水力停留时间为 9~ 10h的条件下 ,处理后的废水COD去除率平均为 38 6 % ,进出水的BOD/COD比值由0 2 85升高至 0 44 7,废水可生化性得到明显改善。
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
    Lime grass pulp paper-making wastewater was treated by the photocatalytic oxidation process. The effects of ZnO and H_2O_2 dosage,influent pH,radiation time and intensity on COD removal were examined.
    采用光催化氧化法处理石灰法草浆造纸废水,考察了ZnO加入量、H2O2加入量、废水pH、光照时间与光照强度对废水COD去除率的影响。
短句来源
    The degradation mechanism of landfill leachate by photocatalysis oxidation process is studied. Acorrding to the difference of the waste water quality, the affections of the reaction time, concentration of the influent, pH, ultravioletlight wavelength on the removal of organic contaminants and chromaticity of landfill leachate are studied. The test of original leachate is made, and the removal rate of CODCr and decolorization rate are respectively 31. 88% and 91.06%.
    研究了紫外光催化氧化法对垃圾填埋场渗滤液的降解机理.根据废水水质的不同,考察了反应时间、进水浓度、pH值、紫外光波长等因素对垃圾渗滤液中有机污染物和色度去除的影响.对垃圾渗滤液原水进行试验,CODCr去除率达到31.88%,褪色率达到91.06%;
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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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%。

Treatment of printing and dyeing wastewater by anaerobic baffled reactor in a pilot plant has been studied. As the influent pH is 10.0, MLSS 20 g/L, and HRT 9~10 h, the removal rates of COD could reach average 36.8%, and the BOD/COD ratio of influent to effluent could increase from 0.285 to 0.447, and the biodegradability of wastewater is improved obviously. As a pretreatment method before aerobic biological treatment of printing and dyeing wastewater, anaerobic baffled reactor is feasible both...

Treatment of printing and dyeing wastewater by anaerobic baffled reactor in a pilot plant has been studied. As the influent pH is 10.0, MLSS 20 g/L, and HRT 9~10 h, the removal rates of COD could reach average 36.8%, and the BOD/COD ratio of influent to effluent could increase from 0.285 to 0.447, and the biodegradability of wastewater is improved obviously. As a pretreatment method before aerobic biological treatment of printing and dyeing wastewater, anaerobic baffled reactor is feasible both technically and economically.

对印染废水进行了挡板式水解酸化中试试验。结果表明 ,调节原水 pH值为 10左右 ,污泥质量浓度为2 0 g/L ,水力停留时间为 9~ 10h的条件下 ,处理后的废水COD去除率平均为 38 6 % ,进出水的BOD/COD比值由0 2 85升高至 0 44 7,废水可生化性得到明显改善。挡板式水解酸化法作为印染废水好氧生物处理的前处理在技术上和经济上都是可行的。

Aerobic activated sludge oxidation was utilized to treat printing and dyeing industrial wastewater with high pH (9.10~12.59) in a lab-scale experiment. Effective sludge loading (SL) was applied to indicate the degradation capacity of activated sludge, while the ratio of sludge volume with mixed liquor(SV), sludge volume index (SVI) and effluent suspended solid (SS) were used to describe the sludge flocculability. Under the experiment conditions, influent pH≤10.5 had hardly any effects on the activated...

Aerobic activated sludge oxidation was utilized to treat printing and dyeing industrial wastewater with high pH (9.10~12.59) in a lab-scale experiment. Effective sludge loading (SL) was applied to indicate the degradation capacity of activated sludge, while the ratio of sludge volume with mixed liquor(SV), sludge volume index (SVI) and effluent suspended solid (SS) were used to describe the sludge flocculability. Under the experiment conditions, influent pH≤10.5 had hardly any effects on the activated sludge, which began to disperse and be inhibited under the conditions of influent pH≥11.1 and HRT<16h. Sludge bulking resulted from high pH could be avoided by adjusting influent pH and prolonging HRT to control mixed liquor pH below a limit of 9.4. However, it could not be avoid even HRT was over 24h under influent pH 11.6. A physical model was present to describe activated sludge dispersion resulted from high influent pH. The model, in which four stages of activated sludge development was divided, can be used to analyze sludge activity and sludge degradation.

采用好氧活性污泥法处理高pH(9.10~12.59)的印染废水,以活性污泥有效负荷的变化反映活性污泥降解有机物能力的变化,以污泥沉降比、污泥容积指数和出水悬浮物浓度的变化反映活性污泥絮凝性能的变化。试验条件下,进水pH≤10.5不会对活性污泥性能产生明显抑制;进水pH≥11.1、水力停留时间(HRT)<16h时,活性污泥性能受到抑制,污泥出现离散,通过延长HRT可以减轻或消除抑制;进水pH11.6,即使HRT达到24h,也不能消除抑制。通过调节进水pH、增大HRT等措施,控制混合液的pH小于9.4,则可避免因pH过高而导致的活性污泥抑制。得出因pH变化而导致的活性污泥离散模型,据此可判断污泥的活性及其变化趋势。

 
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