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铬废水
相关语句
  chromium wastewater
     Depuration of Chromium Wastewater with Coal
     煤对含铬废水的净化(英文)
短句来源
     Biosorption on chromium wastewater by Sporobolomycetaceae sp.
     掷孢酵母对含铬废水的生物吸附
短句来源
     The treatment of chromium wastewater discharged from the plant under the optimum conditions obtained throught the experiments on Fe(OH)_3 has satisfactory results
     用Fe(OH)_3的实验所得最佳条件处理工厂排放含铬废水,证明效果良好。
短句来源
     Study on treatment of chromium wastewater by activated iron(Ⅲ)hydroxide
     活性氢氧化铁溶胶处理含铬废水的研究
短句来源
     Adsorption of chromium wastewater by aerobic biosorption column
     柱生物曝气法吸附处理含铬废水
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  “铬废水”译为未确定词的双语例句
     The removal efficiency of total chrome in wastewater of 13.2mg/L was up to 99% under the optimal conditions of pH 3.5~4.5 and contact time of 8h.
     按最优配比制得的交联壳聚糖吸附剂处理总铬废水,在pH值3.5~4.5,接触时间8h,可使浓度为13.2mg/L的含铬废水中总铬的去除率高达99%以上。
短句来源
     Among the four existing forms of Cr (Ⅵ) in Cr-containing wastewater, HCrO_4~- is considered as the principal one, while Cr_2O_7~(2-) as the secondary by calculating their distribution.
     本文通过计算电镀含铬废水中Cr(Ⅵ)的四种存在形态的分布情况,认为主要存在形式是HCrO_4~-,其次是Cr_2O_7~(2-)。
短句来源
     The adsorption performance of Cr(Ⅵ) on activated sludge and the effect of the adsorption time,pH and temperature on the adsorption were studied.
     研究了活性污泥对含铬废水中Cr(Ⅵ)的吸附性能,考察了吸附时间、pH值、温度、Cr(Ⅵ)浓度对吸附效果的影响。
短句来源
     Results showed that the optimum technical condition was as follows: pH = 6.0-6.5, HRT = 7 h, continuous aeration, with the amount of 0.2 L/min.
     试验结果表明,去除铬废水的最佳工艺条件为:pH=6.0-6.5,HRT=7 h,采用连续曝气,曝气量为0.2 L/min;
短句来源
     The removal rate of chromium could reached 100% when the total concentrations of chromium were 5.0~20.0mg/L.
     而Fh01对低浓度含铬废水的处理效率高,当总Cr浓度为5.0~20.0mg/L时,对铬的去除率达100%.
短句来源
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  相似匹配句对
     Method to Treat Wastewater Containing Chrome
     含废水的处理方法
短句来源
     TREATMENT OF CHROMIUM—CONTAINING WASTEWATER
     含废水的处理
短句来源
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For the sake of treating chromium waste from the electroplating workshop, experiments on the electrolytic method of removing chromium were carried out. Results indicate that treatment of chromium waste with the electrolytic method may reduce the hexavalent chromium in the waste to the amount less than the maximum permissible mentioned in the Standards for waste-water effluents, technical control is simple and reliable and the sludge produced may be utilized. The method of double-electrode connection was adopted...

For the sake of treating chromium waste from the electroplating workshop, experiments on the electrolytic method of removing chromium were carried out. Results indicate that treatment of chromium waste with the electrolytic method may reduce the hexavalent chromium in the waste to the amount less than the maximum permissible mentioned in the Standards for waste-water effluents, technical control is simple and reliable and the sludge produced may be utilized. The method of double-electrode connection was adopted to reduce the current and lower the equipment investment of the rectifier. Factors affecting the method, such as the spacing of the plates, electrolytic period, sodium chloride dosage required, etc., were studied and the economical and reasonabe design data were obtained.

为了处理电镀车间排出的含铬废水,进行了电解法除铬的小型试验。试验证明,采用电解法处理含铬废水,可使废水中六价铬达到规定的排放标准,操作管理简单可靠,污泥也便于综合利用。试验中采用了双电极的联接方法,可使电流降低,节约整流设备投资。通过试验,摸索了极板间距、电解时间、投加食盐等因素对电解除铬的影响,取得了经济合理的设计数据。

Zalenol brown coal is low in ash content,good reactivity and relatively large porosity.In our experiments,it was shown that it had good sorptive efficiency for anionic form of Cr~(6+) as well as for various metallic cations(e.g.Cd~(2+),Cu~(2+),Ni~(2+),Zn~(2+)etc.) in aqueous solution.The ion exchange capacity(expressed in mg/g)were 33.5,24,18,12,11,8 and 4 for Cr~(6+),Cd~(2+),Cu~(2+),Ni~(2+),Zn~(2+),Cr~(2+) and Ca~(2+) respec-tively.Either the porosity and chemical structure of coal or the nature of metallic...

Zalenol brown coal is low in ash content,good reactivity and relatively large porosity.In our experiments,it was shown that it had good sorptive efficiency for anionic form of Cr~(6+) as well as for various metallic cations(e.g.Cd~(2+),Cu~(2+),Ni~(2+),Zn~(2+)etc.) in aqueous solution.The ion exchange capacity(expressed in mg/g)were 33.5,24,18,12,11,8 and 4 for Cr~(6+),Cd~(2+),Cu~(2+),Ni~(2+),Zn~(2+),Cr~(2+) and Ca~(2+) respec-tively.Either the porosity and chemical structure of coal or the nature of metallic ions etc.influence the sorption capacity.In this paper,it was indicated that in acidic aqueous solution,anionic Cr~(6+) was reduced to cationic Cr~(3+) by brown coal,and the sorption was occured in solid-liquid interface.The selective coefficients of Cr~(6+) anion with other metallic cations were shown,this provide the basic data for purifying waste water containing chromium ions.

扎赉诺尔褐煤具有灰份低,反应性好、孔隙较大等特点。实验表明,100目的扎赉诺尔褐煤粉对水溶液中以阴离子形态存在Cr~6+和某些金属阳离子(如Cd~(2+)、Cu~(2+)、Ni~(2+)、Zn~(2+),Cr~(3+)、Ca~(2+)等)有较好的吸附能力,交换容量分别为33.5、24、18、12、11、8、4 mg/g,其中以Cr~(6+)最大。这种吸附能力与煤的孔径、化学结构以及金属离子的本性有较密切的关系。实验表明,褐煤粉是在酸性水溶液中使阴离子形态的Cr~(6+)还原成Cr~(3+)阳离子,再进行吸附。文中还列出它对Cr~(6+)和其他金属阳离子的选择系数,为净化各种含铬废水提供了依据。

This paper deals with the influence of the concentration, flow rate and pH-value of industrial chromic waste water on the exchange effect of granulated NCLS3 in the treatment of the chromic waste water, and deter mines the optimum conditions of its regeneration.

本文研究了粒状NCLS3在处理工业含铬废水过程中,进水浓度、流速、PH值等因素对其交换效果的影响,并确定了最佳的再生条件。此外,在处理天津市津西车俱厂漂洗水的试验中,证明粒状NCLS3的效果也是很好的。

 
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