淋滤
- leaching
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[leaching] 也称淋溶。指水连同悬浮或溶解于其中的土壤表层物质向地下周围渗透
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化学淋滤法去除污泥中Cr、Cu的研究
Removal of Cr and Cu from the Sewage Sludge by Using the Chemical Leaching
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我们认为这是碳酸盐不饱和的热水溶液对碳酸盐沉积物中轻碳同位素(~(12)C)优先淋滤的结果。
This may be due to preferential leaching of light carbon isotope ( 12C ) out of carbonate sediments by hydrothermal fluids .
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草酸对沉积地层中Fe、Cu、Pb、Zn元素的淋滤实验研究
Experimental research on function of oxalic acid in leaching of fe , cu , pb , Zn in sedimentary strata
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采用此菌液对供试厌氧消化污泥中重金属进行生物淋滤,通过8天时间,污泥中Cu和Zn的去除率分别达93%和85%
After 8 days of bioleaching , 93 % of Cu and 85 % of Zn could be removed from the sludge .
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光卤石完全淋滤溶解过程中Br,Rb分配变化研究
Study on the BR and Rb distribution change of complete leaching dissolution process of carnallite
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矿物组成特征研究表明,蛋白石坡缕石层的矿物组分(Si、Mg、Al)来源于盆地周围玄武岩淋滤的浅层地下水。
It is proposed that the components for the minerals ( Si , Mg , Al ) were supplied by shallow groundwater that is from surrounding basalt .
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酸性淋滤作用是风化壳剖面上REE富集分异的主要控制因素。
Acidic leaching is regarded as a major factor affecting REE enrichment and differentiation in the weathering profile .
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淋滤液回灌在短时间内会导致被回灌垃圾体淋滤液的COD、NH4~+等指标浓度加大。
Leachate recirculation can make concentration of COD 、 NH_4 ~ + , etc indexes very high in short periods .
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冶炼废渣在自然淋滤过程中铊有明显的迁移释放能力,废渣中铊的赋存形态和环境介质条件(pH、温度及废渣矿物组分)是控制其迁移释放能力的主要因素。
Thallium in slag has distinct release ability under natural leaching and was affected by its forms and some conditions ( such as pH , temperature and components of slag );
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序批式试验结果表明,淋滤处理8d,Cr的溶出率可高达100%(污泥中铬的原始浓度为14519mg/kg)。
Results showed that Cr removal of 100 % could be obtained after 8 days of bioleaching .
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在全面阐述土壤环境容量模型的基础上,用土柱淋滤试验方法研究首次得出了黄土类土中铬、砷的土壤环境容量分别为95.9kg/ha和12.6kg/ha。
Utilizing infiltration experiment of soil column , the results show that environmental capacity of Cr and As in loessial soil is 95.9kg/ha and 12.6kg/ha .
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结果表明,淋滤处理8d,不同浓度处理Cr的去除率均达95%以上;
Cr removal rate could reach above 95 % after 8 days of leaching treatment of different Cr concentrations .
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测定了盆栽水稻生育期土壤淋滤液pH和水溶态硅浓度,探讨了其变化规律。
Pot experiments were carried out to determine the dynamic changes of pH and water-soluble silicon concentrations of soil leaching solutions in different growth stages of rice after application of slag to paddy soil .
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煤燃烧或干馏产生的颗粒物中PAHs对环境的影响是多方面的:一是可吸入颗粒物直接进入人体器官,通过淋滤出颗粒物中PAHs而危害人体健康;
There are many aspects for the influence of PAHs in the suspended PM from the coal combustion or the coal carbonization on circumstance .
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矿床(体)主要受NW向断裂破碎带控制,热液蚀变特征、氧化淋滤富集明显。
It has clear hydrothermal alteration and oxidation leach enrichment , which is mainly controlled by the NW fault fracture zone .
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花岗岩中的稀土元素在风化淋滤作用下发生富集和分异,形成REE的天然离子色谱层。
The enrichment and differentiation of REE in granitoid rocks during weathering-leaching processes , may lead to the formation of a natural continuous ion-chromatographic column .
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依据作者设计的试验,研究了淋滤液在淋滤过程中对城市生活固体废弃物(MSW)沉降变形的影响。
The influence of leachate on the settlement of Municipal Solid Wastes ( MSW ) is studied according to the laboratory test designed by author .
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浸泡时间、铬渣粒度、铬渣质量、淋滤用水量和pH值均会影响淋滤液中六价铬浓度和淋出率。
The influence of soaking time , granularity of slag , quantity of slag , volume of water equipment on the concentration and quantity of Cr ( VI ) in the leachate are studied respectively in the experiments .
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采用序批式摇床培养,研究了含固率为2%~10%的污泥浓度对生物淋滤法去除制革污泥中重金属Cr效果的影响。
The influence of sludge concentration of 2 % ~ 10 % solid containing rate on removal effect of heavy metal Cr from tannery sludge by bioleaching technique was studied adopting cultivation with order-batch type shaking bed .
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通过室内模拟土壤-灰岩岩溶系统,对不同微生物处理条件下的土柱进行降水淋滤,系统监测了淋出液的pH、电导率、Ca2+、Mg2+以及碳酸酐酶(CA)活性。
Dynamics of pH , electric conductivity , Ca ~ ( 2 + ), Mg ~ ( 2 + ) and carbonic anhydrase ( CA ) activity on the leaching process is investigated under different microbial treatment in calcareous soil systems .
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这是由于埋藏作用和淡水淋滤所引起的,低的Sr含量和δ18O值主要由淡水淋滤所致。
This was caused by burial and leaching of meteoric water . Low contents of Sr and δ 18O values were caused mainly by leaching of meteoric water .
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结果表明,新型大球包膜控释肥处理淋滤液pH值显著高于未包膜肥料处理,但与不施肥空白处理和其他2种控释肥处理差异不显著。
The results showed that the leachate pH of big spherical coated controlled-release fertilizer was significantly higher than that of the soluble fertilizer , but there was no significant difference with no fertilizer control and the other two kinds of controlled-release fertilizer treatments .
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雨水及雾水对大气中存在的PAHs具有显著的淋滤作用,这种淋滤作用主要是通过气态污染物的溶解或者对颗粒态污染物的吸附作用。
Rain and fog play a significant role in leaching the PAHs existing in the atmosphere , and this leaching is mainly through the dissolution of gaseous PAHs or the adsorption of particulate PAHs .
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在实验室内通过对底灰和飞灰在酸性介质下的淋滤实验,研究了底灰和飞灰中痕量元素在60h内4个时间段的迁移释放行为。
The leaching characteristics of trace elements for bottom ash and fly ash in sulfuric acid for 60 hours were examined .
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ICP-MS分析14种中药铀、钍、铊含量含铊黄铁矿冶炼废渣在自然淋滤过程中铊的迁移与释放
Determination of U , Th and Tl in Fourteen Chinese Traditional Medicines by Microwave Digestion-ICP-MS The Migration and Release Behaviors of Thallium in the Sulfuric Acid Slag in the Process of Natural Leaching
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尾矿中含量较高的Cu的溶出量和迁移的速度并不大;Pb、Hg的迁移能力则相对较强,能够大部分被淋滤迁移出来,可能引起地下水环境的污染,应予以重视。
The Cu the content of which is higher in tailings eluviated and transfered less . The transferring ability of Pb and Hg in soil was biggish , and most of them eluviated , so attention should be paid to that Pb and Hg may cause groundwater contamination .
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结果表明,油田卤水促进了含油气盆地中Au、Ag、Pb、Zn元素的淋滤、溶解和迁移,起到了成矿流体的作用,从而积极参与了沉积改造型矿床的成矿作用。
It is concluded that oil field brines can be effective carriers of metal elements and can effectively enhance the leaching , dissolving and transporting effects of gold , silver , lead and zinc in an oil - and gas-bearing basin and can attend actively ore deposition of sedimentary-reworked deposits .
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在200&550℃和60MPa条件下,以氯化物溶液对绿岩中金进行了淋滤实验,部分实验控制了氧逸度。实验结果显示,金的淋滤率与温度、溶液成分、酸碱度及氧逸度有关。
Leaching experiments of gold in greenstone were carried out with chloride solutions at temperatures of 200 to 550 ℃ and a pressure of 60 MPa .
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现场取样分析认为废渣液及淋滤污水目前对该地区地下水影响较小,工程在运行10a后仍然具有较好的防渗功能。
The field sampling analysis indicated that the liquid phase among landfill waste has relatively minor effect on the local underground water quality . The project will still have sound osmotic proof performance after 10 a of operation .
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2次生溶蚀相、白云岩化相、风化淋滤相、绿泥石薄膜胶结相和TSR相等建设性成岩作用是优质储层及大油气田分布的有利区;
The second is the constructive diagenesis are high quality reservoir and favorable distribution region of large oil-gas fields such as secondary corrosion facies , dolomite lithification facies , weathering leaching facies , chlorite thin film cementation facies and TSR facies ;