查询词典 permanganate

With the aggravation of organic pollution of the drinking water source and the improvement of the water-quality standards, the conventional treatment craft of drinking water used in most of water plants in China can't remove the organic pollutant effectively to satisfy people's demand in the water quality. Consequently, permanganate preoxidation technic and mineral materials are combined with coagulation to removing the organic pollutant of drinking water further, so that to solve the increasing contradiction between the aggravation of organic pollution of the drinking water source and the striction of the water-quality standards.

随着饮用水源有机污染的日益加重以及饮用水水质标准的不断提高，我国大多数水厂所采用的传统处理工艺不能有效地去除有机污染物，从而对饮用水水质产生一定的影响，因此，引入高锰酸钾预氧化技术和矿物吸附材料，从而强化去除饮用水中的有机污染物，以解决水源有机污染日益严重与饮用水水质标准日趋严格之间的矛盾。

The objective of this study is to study the kinetic parameters of surfactant-enhanced permanganate oxidation of tetrachloroethylene, and then compared them with the parameters of trichloroethylene studied in other literatures.

本研究主要目的为利用界面活性剂配合过锰酸钾降解水中之四氯乙烯(tetrachloroethylene， PCE)，以求得PCE之相关动力参数，再与文献中三氯乙烯(trichloroethylene， TCE)之动力参数做比较。

In the preoxidation process the potassium permanganate has been used instead of chlorine in the process of pretreatment, which then distinctly control the formation of DBPs such as choroform and carbon tetrafluoride which can result in cancer.

用高锰酸钾预氧化取代了原工艺的前加氯，减少了DBPs前体物的生成量，有效地控制后续氯化消毒中的三氯甲烷和四氯化碳等致癌物质的生成。

Methods According to Evaluation and Expression of Uncertainty in Measurement (JJF1059-1999), analysis of measure uncertainty of the chemical oxygen demand determined by acidic potassium permanganate titrate prescribed in Sanitary Standards for Drinking Water (2001) was conducted.

根据JJF 1059-1999《测量不确定度评定与表示》对《生活饮用水卫生规范》(2001)中耗氧量的酸性高锰酸钾滴定法的测量不确定度进行分析评定。结果水中耗氧量测定的A类相对标准不确定度为0.584%，B类不确定度为0.781%。

Sodium hypochlorite,hydrogen peroxide(H_2O_2),potassium permanganate(KMnO_4),chlorine dioxide(ClO_2),ozone(O_3) were used to inactivate and kill the Tubifex under conditions of different dosages,pH values and contact times.

本文对水厂中新发现的水生物—颤蚓进行了初步研究，利用次氯酸钠、过氧化氢、高锰酸钾、二氧化氯和臭氧等几种常用氧化剂对其进行了灭活试验，研究了在不同投药量、pH值、接触时间下比较几种药剂的灭活效果。

The whole production process was as follows: fresh strawberry fruits after the extirpation of sepal and rachisbranch steeped in 0.5 ‰ potassium permanganate solution for 20 h and then washed by clean water, then after 15 h gelatin treatment by compound zymin, the fruits were used for fermentation, and the indexes of the produced wine reached the standards of quality wine.

结果表明，摘除萼片和枝梗的草莓鲜果经0.5 ‰高锰酸钾溶液浸泡20 s，清水冲洗，复合酶制剂下胶处理15 h后进行发酵，发酵所得草莓酒的各项指标均达到优质果酒标准。

Steven Jones, a PhD physicist formerly of Brigham Young University, says of the 史蒂文琼斯,博士学位的物理学家,以前的杨百翰大学,说的 composition 组成:: [8][ 8 ]Given the mix of trace metals present in anomalously high concentrations in the WTC dust such as zinc, copper and manganese and barium, the formation of iron-aluminum-rich spherules, I have argued that significant aluminothermic reactions occurred, with likely ingredients to include powders of aluminum, iron oxide, copper oxide, zinc nitrate, sulfur, and potassium permanganate.

由于组合的微量金属元素，目前在异常高浓度在世贸中心灰尘如锌，铜，锰，钡，可以形成铁富铝球粒的，我认为，重要的铝热反应的发生，可能与成分，包括粉末铝，氧化铁，氧化铜，硝酸锌，硫，和高锰酸钾。

There are many reports related to the synthesis of azelaic acid, such as oxidation of oleate with nitric acid or ozone (9); oxidation of castor oil with potassium permanganate (10), as well as some other synthetic methods using 1, 9-nonadialdehyde〔11〕or 1,5-cyclooctadiene 〔12〕as the materials.

有关壬二酸合成的研究报道很多，例如用硝酸或臭氧氧化油酸〔9〕；高锰酸钾氧化蓖麻油〔10〕以及以1，9-壬二醛〔11〕、1，5-环辛二烯为原料〔12〕等方法制得。

The nitrite in food was converted to manganese bioxide precipitate by potassium permanganate under acid condition. The precipitate was dissolved in sulphuric acid and the absorptivity of manganese was determined by atomic absorption spectroscopy, so that the content of nitrite was obtained indirectly.

在酸性条件下，用高锰酸钾将食品中的亚硝酸盐先转化成二氧化锰沉淀，再用硫酸溶解沉淀，以原子吸收光谱法测定锰的吸光度，从而间接得到亚硝酸盐的含量，回收率在97.6%~105.2%之间。

Mission:"equality and mutual benefit, reputation first, unity and cooperation and friendship between the long-term" supply products: ethylenediamine; diethylamide; triethylamine; Diethylenetriamine; three ethylene diamine; three ethylene amines 40; 40 Five ethylene amines; five ethylene amines 6; caprolactam; DMF; allyl amine; N, N dimethylaniline; propylamine; are butylamine; are TOA; 3 Poly Cyanamide; 1,2 c diamine; ethanolamine; diethanolamine, triethanolamine; potassium iodide, potassium hydroxide, potassium permanganate, toluene, xylene, toluene of chlorine ; Acetone, butanone; acetylacetone; ethyl acetate, butyl acetate; Y-butyrolactone; DMC; acetyl of methyl acetate; Sanfu acetyl acid; Sanfu acetyl B Ethyl; methanol, ethanol, isopropanol; propylene glycol; glycerol; propargyl alcohol; 1.3 propylene glycol; xylitol; acetic acid; have acid; mercaptoacetic acid; vary Bitterness; adipic acid; trifluoroacetic acid; oxalic acid, the amino acid; o-amygdalin acid; DL-Acid; anhydrous piperazine; six non-piperazine, furfural, castor oil, ethylene Aldehyde; glutaraldehyde, multi-POM; isopropyl ether; anisole; tetrahydropyrrole; pure pyridine; 1.2 dichloroethane; methylene chloride, chloroform, carbon tetrachloride; hydrazine hydrate; Nonylphenol;-m-cresol; Se phenol; phenol; the tert-butyl phenol; Titanium Dioxide; iron; full Tangfen; Bisphenol A; azo two different nitrile; sodium azide; sodium carbonate ; Sodium chloride; iron oxide; cuprous chloride; thionyl chloride; D4; sodium bicarbonate; ammonia, potassium chloride; anhydrous sodium sulphite; ammonium persulfate; glycol Dingmi; B Glycol ether; calcium chloride; cyclohexanone; cyclohexane, methyl tertiary butyl ether, potassium carbonate, ferric chloride, potassium nitrate; Linsuansanna; zinc oxide; sodium nitrite; antimony oxide; Tartrate; OP-10; TX-10; tablets base; AES; sodium benzoate, sodium citrate; partial sodium silicate, sodium perborate, a sodium carbonate, sodium benzene; Asia sodium chlorate; Wuluo Care products; urea; hydrochloric acid, sulfuric acid, lactic acid; amino acid, hydrogen peroxide, ammonium bicarbonate

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。