亚硝化反应
- 网络nitrosation
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黄花菜提取物对亚硝化反应的抑制能力研究
Suppression of Nitrosation by Extracts of Daylily ( Hemerocallis fulva ) Flowers
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金莲花黄色素对亚硝化反应抑制作用的研究
Study on the Inhibition Nitrosation by the Yellow Pigment of Trollius Chinensis Bunge
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N,N-二甲基苯胺的亚硝化反应在一定酸度(pH≤4.70)条件下发生。
When the reaction of N , N-dimethyl aniline with the requirments of nitrite at different acidity , there are three products .
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其中,中温、高TIC浓度的启动方式为今后低基质浓度的亚硝化反应器的快速启动提供了参考与借鉴。
The startup mode of high TIC and mild temperature provided a reference for the quick startup of sub-nitrifying of low substrate concentration domestic sewage .
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在氮杂环亚硝化反应中,重点考察了反应中的温度、pH及浓度的影响,反应几乎等量进行,收率达到99.5%。
In the nitrosation reaction , the emphasis was placed on investigating the influences of temperature , pH and concentration . The reaction was preceded almost at equivalent amount and the yield can be as high as 99.5 % .
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在0.6mol/L盐酸中,甲基橙与NO-2的亚硝化反应产物在极谱仪上于-0.31V(vs.SCE)可获得灵敏的极谱波。
The nitrosation product can produce a sensitive polarographic wave at - 0 31V .
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甘草黄酮提取条件的优化及抑制亚硝化反应的研究
Study on the extraction of licorice flavonoid and inhibiting nitrosamine reaction
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茶叶中影响N-亚硝化反应有效成分的初步探讨
A preliminary study on the active constituents of tea modifying n-nitrosation reaction
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五倍子鞣质的提取及抑制亚硝化反应的初步研究
Preliminary study on the extraction of tannins from galla chinensis and its inhibition to nitrosation
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采用长污泥龄、低氧或微氧工艺控制亚硝化反应,成功地开发出了一种全新的亚硝化工艺,连续运转245d。
A new nitrosation process has been developed on the basis of long age low oxygen sludge and micro-oxygen controlled nitrosation reaction .
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在这些新工艺中,亚硝化反应往往作为限制反应,它的发生速率影响着整个反应的过程,因此有必要寻求提高亚硝化速率的手段;
It is often found that in these processes , nitrification is in the important role of deciding the whole rate of reaction .
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由此可以认为,茶叶中影响N-亚硝化反应的主要成分为茶多酚,尤为茶儿茶素。
Thus , it might be concluded that blocking effect on NPRO formation was mainly due to tea polyphenolic compounds especially tea catechin in tea .
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结果表明,负载型的金属氧化物对反应具有较好的催化效果,硫酸钡和硅胶同样能催化该亚硝化反应。
The results show that these catalysts give better catalytic performance on nitrosation reaction , and barium sulphate and silica gel play the same catalytic role on this reaction .
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在温度为25℃、pH为7.0及好氧的条件下,通过调节亚硝酸型硝化反应器中的曝气量,成功的将氨氮控制在半硝化状态;
The parameters of the nitrous nitrification bioreactor fed with synthetic wastewater were as follows : operating temperature 25 C , pH value 7.0 . According to adjusting to the quantity of air feed , The laboratory-scale nitrous nitrification bioreactor was successfully started up .
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而厌氧氨氧化与亚硝化在单一反应器中耦合也被证明能够解决亚硝酸盐氮过度积累导致细菌活性受抑制的问题,因此研究厌氧氨氧化菌与亚硝酸菌及其他异养菌的共存就非常必要。
The coupling of partial nitrification and anaerobic ammonium oxidation in a single reactor has been proved to be able to solve the problem of excessive nitrite accumulation , which could inhibit the bacterial activity .
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高浓度氨氮废水实现稳定亚硝化宜采用ANIS反应工艺(连续进水、间歇出水),反应器每周期进、出水量仅为其反应容积的一半。
High concentration nitric wastewater can realize stable nitrous nitrification by ANIS process ( continually influence 、 intermittently decantation ), the influence and decant volume of the reactor is only half of its volume .
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研究了柠檬酸铁和草酸铁对过亚硝酸根硝化酪氨酸反应的影响。
The effects of ferric citrate and ferric oxalate on the nitration of tyrosine by peroxynitrite have been studied .
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碳氧化阶段主要是有机质的降解和曝气吹脱除氮,随后通过亚硝化/反亚硝化反应实现生物脱氮和有机物的降解。
The pathway of nitrogen removal from N rich MG wastewater was proved to be via stripping with carbon oxidation stage and shortened nitrification / denitrification subsequently .
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以苯酚、亚硝酸钠和硫酸为原料,在醋酸介质下进行亚硝化反应合成对亚硝基苯酚,并通过正交试验法筛选出最佳反应条件。
P-Nitrosophenol was synthesized by nitrosation reaction of phenol with a mixture of sodium nitrite and sulfuric acid in the acetic acid medium , The best reaction conditions were selected through orthogonal method .