Seaweed extract-EClean was applied to treatment for eutrophication water. Quantative detection of nitrogen cycle bacteria showed that seaweed extract could improve the growth of ammonifying bacteria, nitrosobacteria and nitrobacteria in the treated water. There was also an increasing trend in the number of denitrifying bacteria in aerated treatment water, which showed that the seaweed extract could accelerate nitrogen cycle and the release of nitrogen from water.

利用國外引進(jìn)的海藻提取物EClean制劑對富營養(yǎng)化水體進(jìn)行處理試驗(yàn)狼色行动在线视频，經(jīng)過定量測定處理和對照水體中氮循環(huán)細(xì)菌數(shù)量的變化无码国产有码精品91，得出EClean制劑能夠促進(jìn)水體的氨化細(xì)菌玖玖相交视频、亞硝化細(xì)菌、硝化細(xì)菌的生長欧美亚洲日本高清不卡，并維持了曝氣條件下一定數(shù)量的反硝化細(xì)菌www.淫荡网，通過此處理使得在同一反應(yīng)器中、同一條件下完成硝化作用和反硝化作用成為可能0808贵妃网理论片，加速了水體的氮素循環(huán)sese96，使水體總氮下降明顯。

Terrestrial microorganisms play a vital role in soil nitrogen cycling. They participate in important ecological processes such as nitrogen fixation, ammonification, nitrification and denitrification.

土壤微生物在土壤氮循環(huán)中發(fā)揮著不可替代的作用天海翼精品久久久久中文字幕，參與了包括固氮作用自拍网色、氨化作用、硝化作用和反硝化作用等重要生態(tài)過程偷拍外国呦呦呦。

In this paper, the importance of denitrification in the biogeochemical cycle of nitrogen in estuaries is summarized, It introduces methods of denitrification determination, as well as their advantages and disadvantages.

本文綜述了河口區(qū)域反硝化作用在N元素生物地球化學(xué)循環(huán)過程中的重要作用玖玖视频网，概述了不同測定反硝化速率的方法，并提出了各種方法的優(yōu)缺點(diǎn)≡懈炯で槭悠灯總結(jié)了反硝化作用的影響因素：O2濃度呦呦综合网，NO3，有機(jī)質(zhì)人人入人人操，溫度高清无码污网站，生物等。

The communities of Denitrifying bacteria, and some key enzymes of denitrification were also introduced.

從反硝化的角度出發(fā)激情图区，論述了反硝化細(xì)菌的類群你懂得视频网站、反硝化作用的機(jī)理、反硝化細(xì)菌細(xì)胞中參與反硝化過程的關(guān)鍵酶情欲综合。

After years' effort, a new aerobic denitrifier that can deoxidize NO 3 - to N 2 and N 2 O has been isolated from ocean environment. Compound bacterial production is made up of aerobic denitrifying bacteria, nitrifying bacteria and organic compound degrading bacteria.

本項(xiàng)目將好氧還硝化菌、硝化細(xì)菌和有機(jī)質(zhì)高效降解菌制成復(fù)合微生物制劑欧美黄片1区,2区,3区，通過多種微生物共同作用黄色网站黄色网站欧洲，在好氧的條件下能同時(shí)進(jìn)行有機(jī)質(zhì)降解、硝化作用和反硝化作用一级黄色在线免费看，可有效降低水中的三氮（ NH 4 +最好看的日韩中文字幕视频、 NO 2 -、 NO 3 -）欧美日韩A片网站在线看。

The results show that:①The forest soils have the stronger nitrification, but also the nitrification in surface horizon is stronger than the undersoil's.

結(jié)果表明：①森林土壤有較強(qiáng)的硝化活性试看120秒国产很黄很爽，且表土層比底層土強(qiáng)，同時(shí)根際土利于硝化作用進(jìn)行影音先锋一区二区三区无码电影网，根際效應(yīng)R/S在4.5左右日本一区二区色色；②淹水厭氣培養(yǎng)24h，-N的消失率為52%～58%欧美色欧美亚洲重口二区，占第10天的55%～71%欧美激情久久综合，且表土層-N的消失率比底層土大；③參與同化反硝化作用的還原酶活性較強(qiáng)在线免费观看黄片av，在培養(yǎng)24h后人人干黄色网站，被還原的基質(zhì)數(shù)量占加入基質(zhì)數(shù)量的70%～90%。

In the batch incubation with addition of Asadsorbing ferrihydrite, the presence of arsenicresistant denitrificator caused an increase in concentrations of Fe and Mn, a decrease in concentrations of NO-3 and As, and a high ratio of As to the total As.

在吸附有砷的水鐵礦體系中黄色片视频公司视屏视频，反硝化菌所產(chǎn)生的反硝化作用可導(dǎo)致溶液中NO-3含量的降低欧美涩、Fe含量的升高、As含量降低日夲AAAAA性爱午夜免弗视频，且As所占比例增加国内一级A片久久。

Heterotrophic nitrification bacteria are able to utilize organic carbon sources to grow and produce hydroxylamine, nitrite and nitrate from nitrogen compounds, and most of them can also denitrify these products to gaseous nitrogen compounds simultaneously.

異養(yǎng)硝化細(xì)菌能夠在利用有機(jī)碳源生長的同時(shí)將含氮化合物硝化生成羥胺、亞硝酸鹽黄色网站在线免费观看www、硝酸鹽等產(chǎn)物免费观看黄视频网站，多數(shù)還能同時(shí)進(jìn)行好氧反硝化作用，直接將硝化產(chǎn)物轉(zhuǎn)化為含氮?dú)怏w。

In this paper, a research was made on the treatment of nitrophenol removal ammonia wastewater from a coke-plant by sequencing batch reactors.

試驗(yàn)表明SBR法處理焦化廢水可以取得良好的脫氮效果午夜性大片免费视频。在低溶解氧下午夜福利试看120秒体验区，氨氮及總氮的去除效率均較高。對氮平衡的分析證實(shí)了好氧條件下也可發(fā)生反硝化作用色a电影网，初步探討了好氧反硝化的機(jī)理久久性网。

When studying simultaneous nitrification and denitrification in membranebioreactor,it was foud that the concentration of DO was a key factor and the influence of C/N,pH value and temperature were unconspicuous.

在研究同步硝化反硝化作用時(shí)發(fā)現(xiàn)，C／N精品人人做人人爽爱在碰、pH值和溫度對同步硝化反硝化作用無影響久久久91精品国产，DO是影響系統(tǒng)同步硝化反硝化的關(guān)鍵因素。

denitrifying bacteria：反硝化細(xì)菌 脫氮細(xì)菌

denitrification 反硝化作用 脫氮作用 N | denitrifying bacteria 反硝化細(xì)菌 脫氮細(xì)菌 N | dense pasture 集約放牧 集約放牧地 Y

dendrometer：測樹儀 測樹計(jì)

dendrograph 樹徑記錄器 測樹儀; 測樹圖 Y | dendrometer 測樹儀 測樹計(jì) Y | denitrification 反硝化作用 脫氮作用 N

Denitrification：反硝化作用

主要來源於硝化作用(Nitrification)與反硝化作用(Denitrification), 由硝化菌通過氧化將NH3轉(zhuǎn)化為NO2, 或少量由沒有氣氧能生活的細(xì)菌經(jīng)過反硝化作用將NO3轉(zhuǎn)化為NO2.

aerobic denitrification：好氣反硝化,好氣性反硝化作用

aerobic dehydrogenase 需氧脫氫酶 | aerobic denitrification 好氣反硝化,好氣性反硝化作用 | aerobic digestion 好氣性消化,需氧消化法

chemical denitrification：化學(xué)反硝化作用

土壤化學(xué)固定 soil chemical fixation | 化學(xué)反硝化作用 chemical denitrification | 鉀固定 potassium fixation

the rate of decay：衰變率

the quality of producing a greater yield 增加產(chǎn)量的一種品質(zhì) | the rate of decay 衰變率 | the rate of gaseous products of denitrification 反硝化作用氣態(tài)產(chǎn)物量

demethylation inhibitor：脫甲基抑制劑

delivery of pump 泵的供水量 | demethylation inhibitor 脫甲基抑制劑 | denitrification 反硝化作用,脫氮作用10,118

dendritic drainage：(樹)枝狀水系

demography 人口統(tǒng)計(jì)學(xué);人口學(xué) | dendritic drainage (樹)枝狀水系 | denitrification 反硝化作用

dendritic drainage：(樹)

demography人口統(tǒng)計(jì)學(xué);人口學(xué) | dendritic drainage(樹) | denitrification反硝化作用

nitrosification：亞硝化作用

硝化作用 nitrification | 亞硝化作用 nitrosification | 反硝化作用 denitrification