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wastewater
相关语句
  废水
    The forecast for waste water pollution and exploration on pollution control criterion in Ji-Guan-Zui Gold Mine
    鸡冠咀金矿废水污染预测及控制标准的探讨
短句来源
    Study on treating cyanide-bearing waste water by activated carbon adsorption/catalytic oxidation method
    活性炭吸附催化氧化法处理含氯废水的研究
短句来源
    Wushan Copper Mine Waste Water Treatment and Comprehensive Utilization
    武山铜矿工业废水的综合治理及利用
短句来源
    Bichemical Treatment and Natural Degradation of Cyanide Containing Wastewater
    含氰废水的生化处理和自然降解
短句来源
    Experimental research on the reuse technology of the coal washing waste water for young coals
    年轻煤种洗煤废水回用技术研究
短句来源
更多       
  废水
    The forecast for waste water pollution and exploration on pollution control criterion in Ji-Guan-Zui Gold Mine
    鸡冠咀金矿废水污染预测及控制标准的探讨
短句来源
    Study on treating cyanide-bearing waste water by activated carbon adsorption/catalytic oxidation method
    活性炭吸附催化氧化法处理含氯废水的研究
短句来源
    Wushan Copper Mine Waste Water Treatment and Comprehensive Utilization
    武山铜矿工业废水的综合治理及利用
短句来源
    Bichemical Treatment and Natural Degradation of Cyanide Containing Wastewater
    含氰废水的生化处理和自然降解
短句来源
    Experimental research on the reuse technology of the coal washing waste water for young coals
    年轻煤种洗煤废水回用技术研究
短句来源
更多       
  “wastewater”译为未确定词的双语例句
    Study on Adsorption Properties of Cross-Linked Clay Minerals —Adsorption of Modified Bentonite for Phenol in Waste Water
    交联粘土矿物的吸附特性研究(Ⅲ)——改性膨润土对水中酚吸附性能研究
短句来源
    Based on the accumulated data of many years,this paper establishes the grey forecasting model of the discharged quantity of mine wastewater by using the grey theory,and probes into the functions of the grey model in forecasting the wastewater output of the mines in Shanxi Province.
    在多年积累资料的基础上应用灰色理论,建立了矿井水排放量的灰色预测模型,探索了灰色模型在山西矿井水产量预测中的作用。
短句来源
    In the presence of NaOH and Na2SO3,a novel non-cyanide gold-leaching technology was introduced by investigating the technical parameters for gold reclaiming from the sludge in wastewater pond of a gold mine.
    在NaOH、Na2SO3的协同作用下,探索了硫代硫酸盐法回收某金矿废水池污泥中金的条件。
短句来源
    DETERMINATION AND APPLICATION OF THE ELECTRIC POTENTIAL OF COAL DRESSING WASTEWATER
    煤泥水动电电位的测试与应用
短句来源
    COMBINED USE OF PAM AND CaCl_2 IN THE TREATMENT OF COAL DRESSING WASTEWATER
    PAM与CaCl_2联用治理煤泥水
短句来源
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  wastewater
Activated carbon was prepared from the sewage sludge of municipal wastewater treatment plant by chemical activation (activation reagent is ZnCl2) and was used for the adsorption of dye (reactive brilliant red K-2BP).
      
Geochemistry characteristics and evaluation of the pollution extent of arsenic in wastewater irrigated soil in the North of Tian
      
The isolation and identification of high efficient biohydrogen production anaerobic bacteria are the important foundations for the fermented biohydrogen production process by anaerobic digesting organic wastewater.
      
Development and application of some renovated technologies for municipal wastewater treatment in China
      
Wastewater discharge, especially municipal wastewater discharge, and non-point pollution sources are becoming the major water pollution source and research focus.
      
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After flotability studies on Cu-Zn-Fe sulphides in an ore which is contaminated by the acidic wastewater in an underground mine from time to time, and in which the content of secondary copper sulphides is about 40% of the total copper content, it is proved that separation of sulphides in this ore is very difficult. It is also discovered that the copper sulphides in this ore are possibly divided into two groups of different natural flotability, the sphalerite also has two groups of different flotability...

After flotability studies on Cu-Zn-Fe sulphides in an ore which is contaminated by the acidic wastewater in an underground mine from time to time, and in which the content of secondary copper sulphides is about 40% of the total copper content, it is proved that separation of sulphides in this ore is very difficult. It is also discovered that the copper sulphides in this ore are possibly divided into two groups of different natural flotability, the sphalerite also has two groups of different flotability whether they can be suppressed by non-cyanide depressants. Therefore, a new concept of two-step flotation process to treat this refractory Cu-Zn-Fe sulphide ore is formulated. Characteristics of the two-step flotation process are described in detail. The two-step Cu-Zn flotation process has successfully been tested both in laboratory and in production. This process could produce a final total copper concentrate (grade of 19.3% Cu and 2.5% Zn recovery of 84.6% for Cu), a zinc concentrate (grade of 51.7%Zn, recovery of 80.7% for Zn) and a iron sulphide concentrate (grade of 34.8% S, recovery of 80.2% for S) in industry.

某铜锌铁多金属硫化矿含有较多的次生硫化铜(高达40%),受采场酸性废水的影响,浮选实践证明闪锌矿难以抑制,分选指标不高。根据浮选基础研究和工艺矿物学原理,结合研究对象,认为黄铜矿存在两部分粒子(1部分为天然可浮性好的粒子,另1部分为可浮性差的粒子),闪锌矿也存在两部分粒子(1部分为非氰抑制剂能抑制的粒子,另1部分为非氰抑制剂难抑制的粒子).由此导出两步浮选法的构想,提出铜、锌均两步浮选法。文中还阐述了用两步铜锌浮选法处理这种难选矿石的实验室研究和工业实践,结果令人满意。工业试验获得铜精矿含铜19.3%,含锌2.5%,铜回收率84.6%;锌精矿含锌51.7%,回收率高达80.7%;硫精矿含硫34.8%,回收率80.2%的好指标。伴生金的回收率由原来的26%提高到38%。此外,还介绍了混合精矿在非氰抑制剂存在下进行较长时间搅拌的措施对其分离十分有利。

This paper studies the chemical behavior of injurious element chromium in thewater environment of coal processing and utilization. It is concluded that Cr ̄3+ is easy tooxidize to become more injurious Cr ̄6+ in the water body of fly ash tank in which theoxidation is dominant,so the oxidized chromium becomes more active in migration,In reduction water environment,such as precipitation tank of coal clean plants,Cr ̄6+ is easy toreduce to Cr ̄3+ by the action of reducing matters such as Fe ̄2+,and sulphide,then it...

This paper studies the chemical behavior of injurious element chromium in thewater environment of coal processing and utilization. It is concluded that Cr ̄3+ is easy tooxidize to become more injurious Cr ̄6+ in the water body of fly ash tank in which theoxidation is dominant,so the oxidized chromium becomes more active in migration,In reduction water environment,such as precipitation tank of coal clean plants,Cr ̄6+ is easy toreduce to Cr ̄3+ by the action of reducing matters such as Fe ̄2+,and sulphide,then it precipi-tates and is enriched on the coal surfaces. Therefore,emphasis should be laid on the treat-ment of the wastewater of fly ash tank.

本文研究了煤中有害元素铬在煤炭加工利用过程中的水体环境化学行为,结论为在氧化作用占优势的发电厂灰池水体中,三价铬被溶解氧、二氧化锰等氧化性物质氧化成更有害的六价铬,增加了迁移活性;而在还原作用占优势的选煤厂沉淀池水体中,六价铬则被有机物、二价铁和硫化物等还原性物质还原成三价铬,开发生沉淀,因此应着重对灰池水进行治理。

This poper introduces two methods of treating a large quantity of cyanide -containing wastewater in mines---biochechical treatment and natural degradation. The factors which affect natural degradation are discussed at the end of the paper.

介绍了处理浓度低、数量大的矿山含氰废水的2种方法──生化处理法和自然降解法.讨论了影响自然降解的因素.

 
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