預氯化 的英文怎麼說

中文拼音 [yùhuà]
預氯化 英文
prechlorination
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 氯 : 名詞[化學] chlorine （17號元素, 符號cl）
  • 氯化 : chlorinate; chlorinating氯化處理 chloridization; 氯化反應 chlorination; 氯化氰 [無機化學] cyanoge...
  1. Pretreatment of soda straw pulp black - liquor with calcium chloride

    採用氯化鈣預處理堿法麥草漿黑液的研究
  2. The method for determination of choline choride in premix - spectrophotometry

    預混料中氯化膽堿的測定分光光度法
  3. The preoxidation by three chemicals, such as potassium permanganate, chorine and ozone, and its influence on the subsequent processes were analyzed. the results showed that proxidation could improve the quality of the water after followng treatment processes

    論文研究了高錳酸鉀、氯、臭氧預氧化效果以及對后續氣浮、過濾等常規工藝處理效果的影響，實驗結果表明預氧化能提高后續處理工藝出水水質。
  4. The effects of potassium permanganate, chorine and ozone were compared and the results showed that although all of them could enhance coagulation and then reduce the turbidity of the water after subsequent treatment units, potassium permanganate and ozone were more effective to ensure the quality of the water after air - flotation and sand - filtration

    對高錳酸鉀、氯和臭氧三種氧化劑進行分析比較，結果表明三種氧化劑均能提高混凝效果，但高錳酸鉀預氧化和預臭氧化在提高氣浮和過濾出水水質保障率方面均優于預氯化。
  5. Methods the effects of three vasodilators on the potassium chloride, norepinephrine concentration - response curves and precontracted rabbit aorta were investigated

    方法以離體兔主動脈條觀察該三種血管舒張藥對氯化鉀、去甲腎上腺素量效曲線及預收縮血管的影響。
  6. On the theory, the predictive function control method based on the state space is discussed and the simulation results validate the pfc method ' s advantages on robust and anti - jamming comparing with pid method by computer simulation. the application research includes the application of the software of predictive function control ( apc - pfc ) and the software of the multiple - variables predictive control ( apc - hiecori ). the former were applied in the temperature control chlorinating process and ph control in the process of zymolysis of penicillin, the latter were applied in the advanced control of reclaim equipment of lox in china petroleum & chemical corporation yangzi petrochemical co., ltd

    本文主要從理論和應用兩方面對預測控制方法進行了研究，理論方面主要是從預測函數控制的基本原理出發，研究了一般情況下的基於狀態空間描述的預測函數控制策略，並通過計算機模擬驗證了pfc演算法比常規pid演算法具有更好的魯棒性和抗干擾性：在實際工業過程的應用上，又分為兩類演算法及軟體的應用，預測函數控制策略及apc - pfc軟體的應用主要以聚乙烯氯化過程的溫度控制和青霉素發酵過程的ph值控制為主，多變量預測控制演算法和apc - hiecon軟體的應用主要以揚子石化公司的液化氣回收裝置先進控制為主。
  7. The enzyme - linked immunosorbent assay ( elisa ) and high performance liquid chro - matography ( hplc ) analysis for detection of mc were optimized. the removal rates of mc by conventional water treatment processes were investigated through the laboratory study and the detection of mc in every process in meiyuan drinking water treatment plant. results showed that the prechlorination of eutrophic water led to the release of intracellular toxins to water phase

    本文完善了mc的elisa和hplc分析方法，通過模擬試驗及水廠實測調查了富營養化太湖水中mc在常規凈水工藝中的去除特性，結果表明預氯化使藻細胞內的mc釋放出來，混凝沉澱對細胞外mc無去除作用，砂濾可去除17 . 2 40 . 4的細胞外mc和19 . 0 36 . 6的總mc ，加氯消毒對細胞外mc和總mc的去除率分別為30 45 . 3和30 51 . 7 。
  8. Potassium chloride zinc plating technology was introduced, and the use and maintenance of galvanizing bath and passivation solution were detailed demonstrated, as well as some prevention and treatment suggestion were provided to the common troubles in actual process

    摘要介紹了氯化鉀光亮鍍鋅工藝，並主要就氯化鉀鍍鋅液及鈍化液使用、維護作了較詳盡的闡述，同時針對在實際使用過程中出現的常見故障提出了預防、處理意見。
  9. However, cromakalim depressed the precontrated rabbit aorta by potassium chloride - induced far more weakly than forskoline and nitroglycerin

    而色滿卡林對氯化鉀預收縮血管的舒張作用遠比福斯考林和硝酸甘油微弱。
  10. Gas chromatography - mass spectrometry ( gc - ms ) analyses showed that both potassium permanganate and chlorine could oxidate the organic matters with unsaturated functional groups into those with carboxyl, hydroxyl and aldehyde. and it was further revealed that after preoxidation by potassium permanganate, the sorts of organic matters were reduced remarkably, however, chlorination leaded to increase of the sorts of orgnic matters and brought some chloro - organics such as chlorobenzene, chlorophenol, and trichloro - ethane

    通過色譜-質譜聯用（ gc - ms ）評價分析了高錳酸鉀和氯對有機物結構的改變，高錳酸鉀和氯均將原水中的一些不飽和性有機物氧化分解為一些含氧基團的有機物，如羧酸類、醇類和醛等有機物，但預氯化會在水中出現一些鹵代物，鹵代產物不僅出現在苯環上，而且出現在鏈烴上。
  11. By using batch static test, the effect of chemistry pre - oxidation on coagulation were researched. the raw water come from liujiang river. oxidants evaluated included potassium permanganate ( kmno4 ), hydrogen peroxide ( h 2 o 2 ), ozone ( o 3 ), chlorine dioxide ( clo 2 ), and chlorine ( cl2 )

    通過靜態批量試驗方法，以柳江原水為研究對象，選擇高錳酸鉀、過氧化氫、臭氧、二氧化氯和氯五種氧化劑，全面考察了化學預氧化對混凝效果的影響。
  12. Benzyl chloride were used for extracting genomic dna of aspergillus. niger 14, about 1. 5kb specific fragment was obtained from genomic dna of aspergillus. niger 14 by pcr amplification with primers ( forward primer5 " ataggcatcatgggcgtctct3 " reverse - primer5 " cagctaagcaaaacactccgc 3 designed according to the known sequences of the phytase gene in the gene bank and pyrobest ? dna polymerase, after ligated with pmd18 - tvector, transformated into e. colidh5a competent cell successfully. 3. nucleotide sequence analysis of the cloned fragment revealed the presence of the whole phya gene in pcr product

    用氯化芐法提取了aspergillus . niger14 ~ #基因組dna ，根據genebank中已知的黑麴黴植酸酶基因序列設計出一對特異性引物（上游引物： 5 ataggcatcatgggcgtctc3下游引物： 5 cagctaagcaaaacactccgc3 ） ，採用pyrobest ~ （ tm ） dnapolymerase （高保真dna聚合酶） ，通過pcr方法從aspergillus . niger14 ~ #基因組dna中擴增出了預期的1 . 5kb左右的特異性產物，將其與pmd18 - tvector連接后，轉化e . colidh5菌株的感受態細胞，經質粒抽提、酶切鑒定，確認該目的產物已得到成功克隆。
  13. Preparation of steel substrates before application of paints and related products - tests for the assessment of surface cleanliness - part 2 : laboratory determination of chloride on cleaned surfaces

    塗覆油漆和相關產品前鋼材襯底的預處理.表面清潔度的評定試驗.第2部分:潔凈表面氯化物的實驗室測定
  14. In light of various pollution situations and various water treatment processes of two water factories, better solved the problems about throwing doses, throwing localities, throwing forms of composite potassium permanganate and powder activated carbon, as well as compared the enhanced coagulation efficacy of combined process of composite potassium permanganate and powder activated carbon, composite potassium permanganate pre - oxidation and pre - chlorination

    針對兩水廠不同的源水污染狀況和現有的水處理工藝，通過室內和生產性試驗，很好地解決了高錳酸鉀復合藥劑、粉末活性炭最佳投加點、投加量和投加方式的確定問題，並對兩者聯用的強化混凝效果與預氯化、單獨高錳酸鉀復合藥劑預氧化進行了對比。
  15. Preparation of steel substrates before application of paints and related products - tests for the assessment of surface cleanliness - laboratory determination of chloride on cleaned surfaces

    塗裝油漆和相關產品前鋼材的預處理.表面清潔度的評定試驗.實驗室測定清潔表面上氯化物
  16. Pavlova viridis, isochrysis zhanjiangensis and isochrysis galbana 3011 were cryopreserved in liquid nitrogen using encapsulation - dehydration. algal cells in early stationary phase were encapsulated in 3 % ca - alginate beads with 30 nacl, 2 million cells in one bead. beads were desiccated with silica gel then directly immersed in liquid nitrogen. the cell viability after warming was evaluated by chlorophyll content. the main factors influencing the cell viability, such as water content of beads, dehydration rate, dehydration procedure, preculture and recovery methods after thawing were studied. the results are as follows : 1

    本文以綠色巴夫藻（ pavlovaviridis ） 、湛江等鞭金藻（ isochrysiszhanjiangensis ）和球等鞭金藻（ isochrysisgalbana3011 ）等三種餌料金藻為試驗材料，用包埋脫水法進行冰凍保存。選擇靜止初期的藻細胞包埋在含有30氯化鈉的3 %的褐藻酸鈣膠球中，細胞負載約200萬個細胞/膠球，經過硅膠吸濕法脫水后，探討了膠球含水量、脫水速率、脫水程序、預培養以及化凍后恢復方法對冰凍保存存活率的影響。
  17. Preparation of steel substrates before application of paints and related products - tests for the assessment of surface cleanliness - part 5 : measurement of chloride on steel surfaces prepared for painting ion detection tube method

    塗裝油漆和有關產品前鋼材預處理.表面清潔度的評定試驗.第5部分:塗裝前鋼材表面上氯化物測定
  18. However, although prechlorination efficiently removed algae, its effect was directly related to the quantity of algae and was more obvious in the period of algae bloom. with regard to yellow river water in winter with low temperature and low turbidity, it was discovered that preozonation did not result in a substantial removal of total organic carbon ( toc ), but a remarkable uv254. it was further revealed that preozonation changed the characteristics and structure of organic matters and then enhanced removal efficiencie s of them by subsequent processes

    對于夏季高藻期水質，高錳酸鉀預氧化對有機物有一定的去除能力，並能提高后續工藝出水水質；預氯化能顯著去除藻類，但后續工藝出水水質受藻類數量影響明顯，預氯化只有在高藻期才能提高后續常規處理工藝出水水質；對于冬季低溫低濁水，預臭氧化雖不能降低水中有機物濃度，但能顯著提高后續常規處理單元出水水質。
  19. The effect of prechlorination on powdered activated carbon for removing odor

    預氯化對粉末活性炭除嗅的影響
  20. The result of experiment shows : the combined process of composite potassium permanganate and powder activated carbon has excellent efficiency of enhanced coagulation and is more advanced than pre - chlorination, which can completely replace pre - chlorination and is not only feasible in technology but also remarkable in economic benefit

    試驗研究結果表明：高錳酸鉀復合藥劑與粉末活性炭聯用具有優異的強化混凝效能，能夠完全取代預氯化並獲得比其更佳的混凝效果；該項強化混凝工藝不僅技術上可行，而且具有明顯的經濟效益。
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