It is found that HRT, influent ammonia nitrogen and external carbon source have significant effect on biological nitrification and denitrification.
通过试验发现HRT、进水氨氮和外碳源对生物硝化和反硝化有重要影响。
The practice demonstrates that biological nitrification and denitrification are able to give an effective solution to removal of organic nitrogen from wastewater.
实践表明，采用生物硝化反硝化工艺可以有效解决废水中有机氮的脱除问题。
Hydraulic characteristics and nitrification efficiency of Biological Turbulent Bed Reactor (BTBR) were studied.
试验研究了生物紊动床的水力特性及硝化效能。
Dissolved oxygen (DO) content is a key affective factor for the biological nitrogen removal by simultaneous nitrification and denitrification.
溶解氧(DO)含量是实现同时硝化反硝化生物脱氮的关键因素之一。
Biological nitrogen removal through nitrification and denitrification was the main removal mechanism of nitrogen, which could remove about 50% of influent total nitrogen.
地下渗滤系统中通过硝化、反硝化作用可以去除约50%的进水总氮，是地下渗滤系统去除氮的主要途径。
Based on traditional biological nitrogen removal theory, nitrogen removal involves nitrification of ammonia to nitrate or nitrite followed by denitrification of nitrate or nitrite to nitrogen gas.
依据常规生物脱氮原理，脱氮过程包括将氨氮氧化为硝酸盐氮或亚硝酸盐氮的硝化反应和将硝酸盐氮或亚硝酸盐氮还原为氮气的反硝化反应。
Partial nitrification of ammonia-containing wastewater can save energy and reduce cost, and has become one of the hotspots in the research of biological nitrogen removal from wastewater.
含氨废水的短程硝化能够实现节能降耗，是目前废水生物脱氮领域的研究热点。
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。
The traditional methods of biological nitrogen removal adopted nitrification and nitrification technology, but there are lots problems.
传统的生物脱氮采用的是硝化、反硝化工艺，但存在着很多问题。
There were anti-nitrification floating sludge, aged activated floating sludge and floating sludge from biological foam in the final settling basin of municipal second stage sewage treatment plant.
二级污水处理厂二沉池漂泥有反硝化漂泥、活性污泥老化漂泥、生物泡沫导致的漂泥。
OLAND process is the novel biological denitri fi cation process developed based on the nitrous nitrification-anaerobic ammonia oxidation technology.
O LAND工艺是基于亚硝酸型硝化— 厌氧氨氧化脱氮技术而开发的生物脱氮新工艺。
The shortened nitrification process for biological nitrogen removal has been a hot topic in the field of wastewater treatment at home and abroad in recent years.
短程硝化生物脱氮处理技术是近年来国内外水处理研究的一个热点。
The effect of DO concentration and inlet COD concentration on the nitrogen removal efficiency in porous biological particle fluidized bed nitrification and denitrification(SND) is studied.
进水COD浓度及C/N值是影响系统反硝化效果的两个重要参数，为此研究了不同进水COD浓度在不同C/N值条件下的脱氮效果。
The effect of DO concentration and inlet COD concentration on the nitrogen removal efficiency in porous biological particle fluidized bed nitrification and denitrification(SND) is studied.
进水COD浓度及C/N值是影响系统反硝化效果的两个重要参数，为此研究了不同进水COD浓度在不同C/N值条件下的脱氮效果。
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