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nitrification system
相关语句
  硝化系统
     However, nitrification system is destroyed with DO = 0.5~1 mg/L, TOC ≥100 mg/L and C/N =1∶3.
     DO为 0 .5~ 1mg/L、TOC≥ 10 0mg/L、C/N =1∶3时硝化系统即受到破坏。
短句来源
     Under the condition of DO 2~3 mg/L and TOC 200 mg/L, organic matter has less impact on nitrification while the nitrification system would be destroyed with DO of 0.5~1.0 mg/L and TOC over 100 mg/L.
     在DO浓度为2 ̄3mg/L的条件下,有机物浓度为200m gTOC/L时对硝化作用影响不大; DO浓度为0.5 ̄1.0mg/L、TOC为100mg/L时硝化系统即受到破坏。
短句来源
     Thus, DO=2 mg/L in biological nitrification system is not only meet the need of NH~+4-oxidization demand, but also meet the need of energy saving.
     因此,生物硝化系统内DO为2mg/L时,既可满足硝化要求又可节约能量.
短句来源
     Alkalinity characteristics and control strategy in nitrification system.
     硝化系统碱度特征与调控对策的研究
短句来源
     The alkalinity of the nitrification system was mainly contributed by carbonates present.
     生物硝化系统的碱度主要由碳酸盐类组成.
短句来源
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  “nitrification system”译为未确定词的双语例句
     STUDY ON PERFORMANCES OF SOFT FILLER IN BIOLOGICAL FIXED-FILM NITRIFICATION SYSTEM
     软性填料用于膜法生物消化的性能研究
短句来源
     Through a number of foregoing research, we can get that: (1)BR activated sludge nitrous nitrification system with low C/N low nitrogen concentration nitric wastewater can realize biological nitrous nitrifying, but it can not be long term stable.
     通过上述大量试验研究表明:(1)低C/N低浓度氨氮废水采用活性污泥法BR工艺,可实现稳定的生物亚硝化,但系统不能长期稳定。
短句来源
     (2)The fundamental reason of nitrite accumulation in low concentration BR activated sludge nitrous nitrification system is that nitrogen oxidation bacteria compete out nitrite oxidation bacteria during the process of adapt to temperature、DO、pH、FA.
     (2)低浓度氨氮废水活性污泥法BR工艺中亚硝化现象出现的根本原因是对温度、DO、pH、游离氨等环境因素的适应过程中亚硝酸菌逐渐赢得了生长或/和活性上的竞争优势,而硝酸菌处于相对劣势,导致亚硝化现象出现。
短句来源
     From the result of trial in lab, it showed that NH_3-N in saponin wastewater treated by anaerobic reactor just fell to less than 120 mg/L in aerobic nitrification system after among 4 and 6 days;
     实验室试验的结果表明,厌氧处理后的皂素综合废水在好氧系统硝化的第4~6日后才降至120 mg/L以下;
短句来源
     The effects of dissolved oxygen (DO), temperature, microbial community on nitritification process were evaluated by mathematical models in a 1 liter well mixed batch nitrification system with the initial ammonia nitrogen of 60 mg·L~ -1 and no any other nitrogen source.
     用数学模型模拟了1L初始氨氮浓度60mg·L-1且无其它氮源的污水完全混合批式硝化过程,并分别计算了溶解氧、温度、微生物群落对硝化过程的影响.
短句来源
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  相似匹配句对
     system).
     系统)。
短句来源
     That system on .
     该系统基于.
短句来源
     Alkalinity characteristics and control strategy in nitrification system.
     硝化系统碱度特征与调控对策的研究
短句来源
     RESEARCH ON SIMULTANEOUS NITRIFICATION AND DENITRIFICATION IN SBR SYSTEM
     SBR系统中同时硝化反硝化生物脱氮研究
短句来源
     Nitrification Inhibitor
     硝化抑制剂
短句来源
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This paper studied on the performances of soft filler in biological fixed-film nitrification system. The results showed that soft filler was a kind of ideal filler in biological nitrification system, and suitable for the growth of microorganism owing to the large surface area, the activity of biological film was high. The concentration of biological film was 3.41g/l and start-up easily, only required half a month. When the loading volume of NH_3-N was 24kg/m~2·d the removal efficiency would be 87%....

This paper studied on the performances of soft filler in biological fixed-film nitrification system. The results showed that soft filler was a kind of ideal filler in biological nitrification system, and suitable for the growth of microorganism owing to the large surface area, the activity of biological film was high. The concentration of biological film was 3.41g/l and start-up easily, only required half a month. When the loading volume of NH_3-N was 24kg/m~2·d the removal efficiency would be 87%.

本文着重研究软性填料用于膜法生物硝化的性能。试验结果表明,软性纤维用于膜法生物硝化,是一种理想的填料。它适宜于微生物生长,生物膜活性强,填料比表面积大,生物膜浓度高达3.41g/l。仅需半个月的挂膜时间。用于硝化的效果好。在容积负荷为0.24kg NH_3-N/m~3·d时,NH_3-N去除率达到87%。

Study was made on nitrification and organic matter oxidation under the condition of low DO and existence of organics in biological turbulent bed reactor, and analysis was conducted on the competition between heterotrophic and autotrophic bacteria. The test results show that under the conditions of DO = 2~3 mg/L, TOC = 200 mg/L, and C/N = 1∶1.5, there is less impact on nitrification; However, nitrification system is destroyed with DO = 0.5~1 mg/L, TOC ≥100 mg/L and C/N =1∶3.

利用生物紊动床在低溶解氧 (DO)和有机物存在的条件下研究了氨氮的亚硝化、硝化和有机物氧化的规律 ,分析了异养菌与自养菌竞争的特点。试验结果表明 ,DO为 2~ 3mg/L、有机物浓度 (TOC)为 2 0 0mg/L、C/N =1∶1.5时对硝化作用影响不大 ;DO为 0 .5~ 1mg/L、TOC≥ 10 0mg/L、C/N =1∶3时硝化系统即受到破坏。

Microbial mass is a kind of biofilm or suspended activated sludge and is prototypes of highly stratified microbial communities, which are able to simultaneously perform numerous processes relevant for biological wastewater treatment. Microelectrodes for O(2) and NH~+4 were combined to examine the characteristics of DO and NH~+4 distribution in a microbial mass. Microprofiles showed that O(2 ) consumption and NH~+4 oxidization were restricted to the upper 50~150μm of biomass. The vertical distribution of...

Microbial mass is a kind of biofilm or suspended activated sludge and is prototypes of highly stratified microbial communities, which are able to simultaneously perform numerous processes relevant for biological wastewater treatment. Microelectrodes for O(2) and NH~+4 were combined to examine the characteristics of DO and NH~+4 distribution in a microbial mass. Microprofiles showed that O(2 ) consumption and NH~+4 oxidization were restricted to the upper 50~150μm of biomass. The vertical distribution of NH~+4-oxidization process is very similar to that of O(2) diffusion. Moreover, the result also showed that an increase of O(2) concentration in the bulk water, in the low range of DO concentration, resulted in an increase of O(2 ) diffusion depth .But the depth of O(2) diffusion can't increase more than 150μm because of the diffusion resistance and the limited force of diffusion. The nitrification characteristic, which is under the condition of DO≥2 mg/L, is very similar to that of DO≤2 mg/L. Thus, DO=2 mg/L in biological nitrification system is not only meet the need of NH~+4-oxidization demand, but also meet the need of energy saving.

废水生物处理的微生物基团是以生物膜或悬浮絮体存在于体系内的,其中所含有的大量种群复杂的微生物与基质在微生物基团的分布密切相关.采用微小电极技术测定了微生物基团内DO浓度、NH+4-N浓度的变化特点.结果表明:DO在微生物基团内的扩散深度在一定范围内随体系DO浓度增加而增加;微生物基团内硝化作用发生的范围与DO扩散深度直接相关;过高的DO浓度,由于受传质阻力的影响,其在微生物基团内的扩散深度并不会持续增加;体系DO高于2mg/L以上时的硝化效果基本接近.因此,生物硝化系统内DO为2mg/L时,既可满足硝化要求又可节约能量.

 
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