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- COD and nitrogen ratio 碳氮比
- The scanning electron-microscopy (SEM) photograph illuminated that the nitrobacteria grew well, which provided conditions for COD and nitrogen removal. 反应器内的微生物的电子照片说明,硝化菌发达,为处理COD和氨氮提供了保障,从而使得微生物处理废水的效果显著。
- The effect of aeration time,DO concentration and inlet COD loading on the COD and nitrogen removal efficiency in biofilm simultaneous nitrification and denitrification(SND)is studied. 研究了生物膜法同步硝化反硝化系统中曝气时间、溶解氧和进水COD负荷对COD及脱氮效率的影响。
- Through flask culture,research Lentinula edods submerged culture optimum fermentation time,the optimum carbon,nitrogen and optimum best quality carbon and nitrogen ratio. 通过摇瓶培养,研究香菇液体深层培养最适发酵培养时间、最适碳源、最适氮源及最佳碳源与氮源质量配比。
- He bought a canned cod and a sandwich as supper. 他买了一个鳕鱼罐头和一个三明治作晚饭。
- The main pollutant indexes in the river are COD and total Hg. 河水的主要污染成分为COD和总汞。
- What are the purposes of helium and nitrogen gas? 氦气与氮气在这套系统中有何作用?
- Keywords carbon tube membrane-aerated;biofilm;anaerobic baffled reactor(ABR);simultaneous nitrification and denitrification(SND);COD and nitrogen removal; 炭管膜曝气;生物膜;厌氧折流板反应器;同时硝化反硝化;脱碳除氮;
- Keywords Nonwoven;Carbon membrane;Biofilm;Simultaneous nitrification and denitrification(SND);Anaerobic Baffled Reactor(ABR);COD and nitrogen removal; 无纺布;炭膜;生物膜;同时硝化反硝化;厌氧折流板反应器;脱碳除氮;
- If it were not for oxygen and nitrogen in the air, no man could live on the earth. 大气中如果没有氧和氮,人就无法生存于地球了。
- The experimentation inspected the infection of hydraulic load, organic load, ammonic nitrogen load, the ratio of gas and water, the height of filling to removal efficiency of COD and ammonic nitrogen. 本试验以自配生活污水为试验用水,考察了水力负荷、进水有机负荷和氨氮负荷、气水比、填料层高度对曝气生物滤池处理COD和氨氮效果的影响。
- Enrichment of organic matter and nitrogen in eroded bedloads. 侵蚀泥沙、有机质和全氮富集规律研究。
- But overdoses of sulfur and nitrogen cause crop damage. 但过量的硫磺和氮气却会造成收成的损害。
- They say much of the soil lacks enough phosphorus and nitrogen. 他们说当地的大部分土壤缺乏足够的磷和氮。
- The micropore diffusiviites of oxygen and nitrogen are obtained. 求得了氧、氮的扩散系数。
- The degradation rate of COD and ammoniac nitrogen reached 94.1% and 84.5%, respectively. 在最佳处理工艺条件下;COD和氨氮的降解率分别达到94.;1%25和84
- They say much of the soil lacks enough phosphorus and nitrogen . 这些专家们认为许多土壤都缺少足够的磷和氮。
- On researching the influence of C:N ratio to the treatment efficiency, we found when COD/NH_4~+-N remained in the range of 10~25, COD and NH_4~+-N hadpreferable removal rates. 在碳氮比对处理效果的研究中发现,当COD/NH_4~+-N 比维持在10~25 范围,无论COD或NH_4~+-N 均有较好的去除效果。
- My work was to help monitor treatment of garbage percolating liquid and mainly monitor the variation of three indicators, BOD, COD and ammonia nitrogen. 我的工作是在监控协助监控垃圾渗滤液的处理,主要监控三个指标的变化,即BOD、COD及氨氦(氮)。
- COD and BOD5 of paddy field water in SIA were more than that in CIA. 污水灌区稻田水的COD和BOD5高于清灌区稻田水;