The nitrogen fertilizer losses in paddy field involve nitrification-denitrification, ammonia volatilization nitrate leaching and runoff.

1、

The nitrification of the ammonium ion, however, results in the formation of an acid residue.

但铵离子的硝化会产生一种酸性残留物.

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2、

Nitrification is an important step to affect nitrogen removal in biological treatment processes.

生物脱氮系统中,硝化作用好坏是影响脱氮工艺效率的重要步骤.

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3、

A good correlation of ammonia removal efficiency, nitrification rate and TN removal efficiency was found.

氨氮去除率和硝化速率、总氮去除率具有较好的相关性.

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4、

Urea + nitrification inhibitor DMPP ( Entec 46 ), Urea + nitrification inhibitor DCD ( U + DCD ) and organic-inorganic fertilizer ( OIF ) decreased significantly nitrate content of rape.

尿素+硝化抑制剂DMPP ( Entec46 ) 、尿素+硝化抑制剂DCD ( U+DCD ) 和有机无机复混肥 ( OIF ) 3种氮肥显著降低了油菜硝酸盐含量.

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5、

In sewage containing 30 % seawater, shortcut nitrification can be achieved at moderate temperature.

生活污水中海水比例为30%中温条件下可以实现短程硝化.

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6、

Understanding of the manufacture of sulfuric acid in two ways, contact the Law and nitrification.

了解制造硫酸的两种方法, 接触法和硝化法.

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7、

Ammonia can be transformed into nitrate that can be utilized by plant via nitrification.

氨经硝化作用转化成可被植物利用硝酸盐.

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8、

In addition , the effects of sorption and nitrification on NH 4 + N transformation and tr.

就吸附作用和硝化作用对铵态氮转化迁移规律的影响作了定量讨论.

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9、

The influence of nitrification efficiency with adding nitrifying bacteria to the activated sludge process was investigation.

研究了在活性污泥工艺中用投加硝化菌的方法提高硝化效率的特性.

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10、

The experiment demonstrated that it is feasible to start ANAMMOX reactor with nitrifying activated sludge.

反应器的成功启动表明,使用硝化细菌接种厌氧氨氧化反应器能实现快速启动.

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11、

New comparison parameter and new calculation methods of acrylic nitrile reactor carbon balance are established.

确定新的对比参数,建立了一种新的丙烯腈反应器碳平衡计算方法.

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12、

I purchase large factory waste nitrile gloves, demand for the color blue, non-PVCmanufacturers waste.

我厂求购大量废旧丁腈手套, 需求颜色为蓝色, 不含PVC的厂家废料.

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13、

Lei-ring and general wear-resistant nitrile rubber by dipping the fabric from repression.

蕾形密封圈一般由丁腈橡胶和耐磨的浸胶织物压制而成.

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14、

Standard versions feature a nitrile double-lip seal and standard grease.

标准版本采用腈双密封唇和标准油脂.

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15、

The oxidation further enhances the physical properties of carbon black filled nitrile butadiene rubber ( NBR ) .

氧化后的碳黑进一步加强了硝基丁二烯橡胶的物理性能.

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16、

In this paper , the synthesis, grades , characteristics and applications of hydrogenated nitrile rubber ( HNBR ) are reviewed with 28 references.

综述了氢化丁腈橡胶的制备方法、种类、性能特点及其在工业中的应用.

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17、

Used Nitriles Plant and Process, complete Nitriles Plant and Process for re-location throughout the world.

二手腈纶装置和工艺, 成套腈纶装置和工艺可以在世界各地重新安装.

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18、

The analytic methods of nitrite in edible salt were described.

文章提出了食用盐中亚硝酸盐的测定方法.

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19、

Objectives We research the change contents nitrate and nitrite of cabbage in different storage ways.

不同贮藏方式对小白菜中硝酸盐、亚硝酸盐的含量变化会产生影响.

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20、

Example 7 was sensitized by aeration with sodium nitrite which was added terminally to the mixture.

例7借最后加入的亚硝酸钠产生气体而进行敏化.

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