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biological nitrification and denitrification    
相关语句
  生物硝化反硝化
    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。
短句来源
  生物硝化和反硝化
    The results showed that the temperature had a weak influence on the removal efficiencies of CODCr,SS and TP, however, biological nitrification and denitrification would be weaken at low temperature with the running parameters of HRT of MBBR 3. 3-6 h, dosage of PAC with 30 mg/L and filling ratio of moving carriers with 30%.
    结果表明:当生物段HRT为3.3-6 h、预处理PAC投加剂量30 mg/L、填料投配率30%的条件下,温度对CODCr、SS、TP的处理效果影响很小,对生物硝化和反硝化的影响较大。
短句来源
    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。
短句来源
  生物硝化反硝化
    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。
短句来源
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N2O is an important green house gas in the atmosphere, so it is very important to control the increase of N2O concentration. Research has suggested that biological nitrification and denitrification of wastewater is one of important source of N2O, and its emission occurres during nitrosofication and denitrification. Moreover, the amount of N2O emission is dramatically influenced by many environmental factors. Fully understanding of emission mechanics and affecting rules of various factors is a premise...

N2O is an important green house gas in the atmosphere, so it is very important to control the increase of N2O concentration. Research has suggested that biological nitrification and denitrification of wastewater is one of important source of N2O, and its emission occurres during nitrosofication and denitrification. Moreover, the amount of N2O emission is dramatically influenced by many environmental factors. Fully understanding of emission mechanics and affecting rules of various factors is a premise to control N2O.

N_2O是大气中重要的温室气体之一,控制其大气浓度的增长具有重要意义。研究表明,污水生物处理的硝化反硝化过程是N_2O的重要源强之一,N_2O的逸出主要发生在亚硝化过程和反硝化过程,而且逸出量受环境因素影响很大。深入了解N_2O的逸出机理和外界因素的影响规律是有效控制N_2O的前提和基础。

In view of the low ammonia nitrogen removal efficiency of when using A/O process to treat refinery wastewater, biological nitrification and denitrification theory is utilized to analyze relevant influencing factors.Importance of unoiling as pretreatment in the whole process is discussed.It is proposed that reasonable nitrification process should be selected on the basis of wastewater characteristics.Improvement on the existing technique is also presented in the paper.

针对炼油废水A/O工艺氨氮去除率低的问题,运用生物脱氮原理对其影响因素进行了分析。论述废水强化预处理除油的重要性,提出应根据废水水质选择合理的硝化工艺,并提出了改进现有工艺的措施。

Solo leaehate treatment unit with integrated treatment process should be built in Xiangjiawan Landfillsite. Treatment process are anaerobic conditioning - UASB - SBR - chemical flocculation process treating leaehate in the landfill combines two - stage anaerobic digestion and biological nitrification and denitrification with chemical process, which will consume COD while removing highly concentrated ammonia.

介绍向家湾垃圾填埋场建立场内独立的污水处理站,采用多技术集成处理垃圾渗滤液,其处理工艺厌氧调节-UASB-SBR-化学絮凝沉淀工艺将两级厌氧消化、生物硝化和反硝化等生物过程与化学过程相结合,去除COD的同时去除高浓度氨氮,具有可操作性和经济性。

 
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