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废水浓度     
相关语句
  wastewater concentration
     flour wastewater concentration (COD_(Cr)) 1 971 ~2 138 mg/L, sucrose 3 g/L, NaNO_3 0.3 g/L, the optimum pH was 5;
     米面废水浓度(COD_(Cr))1971~2138mg/L,蔗糖3g/L,NaNO_30.3g/L,初始pH值为5;
短句来源
     The optimum cultivating conditions were—glutamic acid wastewater concentration (COD_(Cr)) 7 300~7 500 mg/L, sucrose 1 g/L, the optimum pH was 4;
     其最佳培养条件分别为——味精废水浓度(COD_(Cr))7300~7500mg/L,蔗糖1g/L,初始pH值为4;
短句来源
     The results show that the removal of CODcr and organic chlorine are best when the wastewater concentration is 50%, pH is 7 and inoculation quantity is 2ml.
     结果表明,当废水浓度为50%,pH为7,菌液量为2ml时,CODcr和有机氯的处理效果最好。
短句来源
     In this paper,the effects of wastewater concentration、pH、irradiation time、adding NaCl and aeration on the degradation efficiency of acid red dye were studied.
     以酸性红B染料模拟废水为对象,考察了废水浓度、pH、超声时间、NaCl投加量及曝气等因素对其超声降解效率的影响.实验结果表明:酸性红B降解率与超声时间基本上成线性关系;
短句来源
     Influence of wastewater concentration on mixed liquor viscosity was studied through the theory and general relational expression of mixed liquor viscosity & operational conditions was obtained for the first time.
     第一次从理论角度研究了废水浓度对混合液粘度的影响,并得到了混合液的粘性与各操作条件的总关系式。
短句来源
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  concentration of wastewater
     The results indicate that when pH is 7.0, the concentration of wastewater is 50%, adding glucose 0.4 g/L, and the quantity of inoculation is 2 mL, the highest removal rate of organic chloride is 74.8%.
     结果表明 ,当pH为 7.0、废水浓度为 5 0 %、加入 0 .4g/L葡萄糖、2mL菌液时 ,处理效果较好 ,有机氯的去除率最高可达 74 .8%。
短句来源
     Main Existing Forms of Cr~(6+) in Wastewater and Their Relationship with the Acidity and Concentration of Wastewater
     废水中六价铬的主要存在形态与废水浓度及酸度的关系——兼与施波同志商榷
短句来源
     Under the condition of low operation pressure and low CrO_4~(2-) ion concentration of wastewater,the CrO_4~(2-) rejection was stable and more than 99%. Therefore,the permeation water could be recycled.
     在低压和废水浓度较低的情况下,CrO2-4的截留率可达99%以上,从而实现了镀铬废水分离处理,并达到了回用目的。
短句来源
     The influence of poly (aluminum/ferric/silicon) flocculants such as concentration and dosage, pH value and concentration of wastewater on flocculating property and settlement speed of wastewater was investigated.
     分析了聚铝铁硅絮凝剂用量、废水pH值和废水浓度等因素对絮凝效果和废水沉降速度的影响。
短句来源
     The optimal operating conditions were selected as follows: aerobically in darkness, pH=8, bacteric concentration 70% and higher concentration of wastewater(COD cr ≈12 g/L).
     p H值为 8; 接种量为 70 %和较高的废水浓度 (CODcr值为 12 g/ L左右 )。
短句来源
更多       
  waste water concentration
     flour wastewater concentration (COD_(Cr)) 1 971 ~2 138 mg/L, sucrose 3 g/L, NaNO_3 0.3 g/L, the optimum pH was 5;
     米面废水浓度(COD_(Cr))1971~2138mg/L,蔗糖3g/L,NaNO_30.3g/L,初始pH值为5;
短句来源
     The optimum cultivating conditions were—glutamic acid wastewater concentration (COD_(Cr)) 7 300~7 500 mg/L, sucrose 1 g/L, the optimum pH was 4;
     其最佳培养条件分别为——味精废水浓度(COD_(Cr))7300~7500mg/L,蔗糖1g/L,初始pH值为4;
短句来源
     The results show that the removal of CODcr and organic chlorine are best when the wastewater concentration is 50%, pH is 7 and inoculation quantity is 2ml.
     结果表明,当废水浓度为50%,pH为7,菌液量为2ml时,CODcr和有机氯的处理效果最好。
短句来源
     In this paper,the effects of wastewater concentration、pH、irradiation time、adding NaCl and aeration on the degradation efficiency of acid red dye were studied.
     以酸性红B染料模拟废水为对象,考察了废水浓度、pH、超声时间、NaCl投加量及曝气等因素对其超声降解效率的影响.实验结果表明:酸性红B降解率与超声时间基本上成线性关系;
短句来源
     Influence of wastewater concentration on mixed liquor viscosity was studied through the theory and general relational expression of mixed liquor viscosity & operational conditions was obtained for the first time.
     第一次从理论角度研究了废水浓度对混合液粘度的影响,并得到了混合液的粘性与各操作条件的总关系式。
短句来源
更多       
  waste strength
     The color of the white water will become light greatly, the waste strength, SS and COD will become greatly lower, it can low down the pollution load of the waster water, and benefit to the circumstance protection.
     网下水的颜色会变浅,废水浓度、SS、COD大幅度下降,可降低废水污染负荷,有利于环境保护。
短句来源

 

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      wastewater concentration
    The considerable share (12%) of total consumption which this class of surfactants accounts for is equivalent to a theoretical wastewater concentration of ca.
          
    Ten percentage of wastewater concentration and pH?=?5.0 were found to be the most suitable ones among the other experiments.
          
    As a result of the wastewater concentration a part of dissolved compounds will be retarded and accumulated at the membrane.
          
    Because the NASA DOC test unit is operated in a semi-batch mode, wastewater concentration fluctuates during the course of operation.
          
    Figure 8 The plot of respiration inhibition v wastewater concentration, from the Report.
          
    更多          
      concentration of wastewater
    We filtered the data in T-S space to remove water masses other than the wastewater, and then used the adiabatic mixing assumption to calculate the concentration of wastewater in the far field of this plume.
          
    Clearly, the microbial concentration of wastewater applied to the land depends on the extent of treatment it receives.
          
    So, in spite of the fact that the DEHP concentration of wastewater after treatment is low, the chemical will gradually accumulate in sediments.
          
      waste strength
    However, Ruskin suggested that the orifice discharge rate and orifice spacing are functions of waste strength.
          
    However, the effect of higher waste strength on Pressure Distribution design criteria and system components is unknown.
          
    If the concentration of BOD5 and TSS is variable, then some pretreatment may be required to control the waste strength.
          
    It can not only reduce the waste strength, but also produce useful energy in the form of liquid fuel.
          
    Results showed that the TCC process could not only substantially reduce the waste strength of swine manure slurry but also produce renewable energy.
          
    更多          


    This paper reports acute toxicity of effluents in the process of exploiting the vanadium trtanornagnetite to carps, Cyprinus caprio and avoidance capacity of this species to these effluents. Characteristics of the three whole effluents and it’s biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant Lit 23.5±0.5℃ of the...

    This paper reports acute toxicity of effluents in the process of exploiting the vanadium trtanornagnetite to carps, Cyprinus caprio and avoidance capacity of this species to these effluents. Characteristics of the three whole effluents and it’s biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant Lit 23.5±0.5℃ of the water tested. However, both the cleared effluents of plants of smelting and coal cleaning do not cause acute lethal to this species during 168-hour. The data of avoidance test in the laboratory indicate that carps have avoided at least two concentrations of the three cleared effluents withm the concentrations tested, although the avoidance differs with different effluents. This species have avoided 100% and 100% oredressing effluent; 2.0%, 10% and 100% for smelting effluent; 10% and 100% for coal cleaning effluent, respectively. At different testing stations along the river, in the lower reaichs of the outlet for effluents, are laid up the“live box”to determine to toxicity of effluents. The results have been obtained from observations of the field bioassays.Accord ing to the LT_(50) and LT_(100) for this species, the toxicity of the three efluents is greater than that in the laboratory test. The various results obtained from present studies in the laboratory and field are closely related to the chemical characteristics of whole effluents. It is evident that poisonous effects of abnomally high concentrations of suspended matters and metals in effluents for aquatic organisms should be considered.

    本文报导釠钛磁铁共生矿的开发过程中三种废水对鲤鱼的急性毒性,以及鲤鱼对这些废水的回避能力。试验水温为23.5±0.5℃,澄清的尾矿废水的96小时LC_(50)为26.6%;澄清的冶炼废水和洗煤废水在168小时内均不引起鲤鱼急性致死。鲤鱼的回避能力随澄清的废水种类不同而异,能分别回避10%和100%尾矿废水;2.0%、10%和100%冶炼废水;10%和100%洗煤废水,回避能力与废水浓度成正相关。在废水排出口下游的现场生物检测所得LT_(50)和LT_(100)值表明,这三种废水的毒性比实验室试验的毒性大得多。对三种全废水的水质特征进行了化学分析,并就其水质特征讨论这些废水的生物学评价。

    This paper reports acute toxicity of effluents in the process of exploiting the vanadium titanomagnetite to carps,Cyprinus caprio and avoidance capacity of this species to these effluents.Characteristics of the three whole effluents and it's biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant at 23.5±0.5℃ of the water...

    This paper reports acute toxicity of effluents in the process of exploiting the vanadium titanomagnetite to carps,Cyprinus caprio and avoidance capacity of this species to these effluents.Characteristics of the three whole effluents and it's biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant at 23.5±0.5℃ of the water tested. However,both the cleared effluents of plants of smelting and coal cleaning do not cause acute lethal to this species during 168-hour. The data of avoidance test in the laboratory indicate that carps have avoided at least two concentrations of the three cleared effluents within the concentra- tions tested,although the avoidance differs with different effluents.This species have avoided 10% and 100% oredressing effluent;2.0%,10% and 100% for smelting effluent;10.% and 100% for coal cleaning effluent,respectively. At different testing stations along the river,in the lower reaichs of the outlet for effluents,are laid up the“live box”to determine to toxicity of efflu- ents.The results have been obtained from observations of the field bioassays. Accord ing to the LT_(50) end LT_(100) for this species,the toxicity of the three effluents is greater than that in the laboratory test. The various results obtained from present studies in the laboratory and field are closely related to the chemical characteristics of whole effluents.It is evi- dent that poisonous effects of abnomally high concentrations of suspended mat- ters and metals in effluents for aquatic organisms should be considered.

    本文报导钒钛磁铁共生矿的开发过程中三种废水对鲤鱼的急性毒性,以及鲤鱼对这些废水的回避能力。试验水温为23.5±0.5℃,澄清的尾矿废水的96小时 LC_(50)为26.6%;澄清的冶炼废水和洗煤废水在168小时内均不引起鲤鱼急性致死。鲤鱼的回避能力随澄清的废水种类不同而异,能分别回避10%和100%尾矿废水;2.0%、10%和100%冶炼废水;10%和100%洗煤废水,回避能力与废水浓度成正相关。在废水排出口下游的现场生物检测所得 LT_(50)和 LT_(100)值表明,这三种废水的毒性比实验室试验的毒性大得多。对三种全废水的水质特征进行了化学分析,并就其水质特征讨论这些废水的生物学评价。

    The blend cellulose acetate membrane can be used to separate hexamine wastewater. The several factors for the effect on separation performance was theoreticaly analysed. And the experimental fact for the rejection effectiviely hexamine wastewater was explained by the sieve effect. The hexamine wastewater of more than 1% concentration was concentrated 6-7 times by smaller flate plate reverse osmosis equipment in this experiment, its water flux was 0.82 T/M~2·Day, at operation pressure 40-50kg/cm!!. Concentrated...

    The blend cellulose acetate membrane can be used to separate hexamine wastewater. The several factors for the effect on separation performance was theoreticaly analysed. And the experimental fact for the rejection effectiviely hexamine wastewater was explained by the sieve effect. The hexamine wastewater of more than 1% concentration was concentrated 6-7 times by smaller flate plate reverse osmosis equipment in this experiment, its water flux was 0.82 T/M~2·Day, at operation pressure 40-50kg/cm!!. Concentrated water was a recoverable product. The hexamine concentrate of the permeate was always less than 0.20% during the entire operating period and water flux can be immediatly exclusived or recovered.

    本文研究了反渗透法浓缩分离乌洛托品废水,讨论了废水浓度、运行时间、操作压力以及浓差极化等对分离性能的影响,表明了醋酸纤維素混合膜可用于处理乌洛托品废水,理论上分析了影响分离性能的诸因素,并用筛网效应解释了有效截留乌洛托品的实验事实。本实验的小型平板式反渗透装置在40—50kg/cm~2操作压力范围内,可将1%以上乌洛托品的废水浓缩6—7倍,产水量达0.82T/m~2·d。浓缩水可作为回收产物处理,在整个浓缩过程中透过水中乌洛托品含量始终小于0.20%,因而透过水可直接排放或回用。

     
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