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- The result showed that phytoplankton,bacteria,ammonia nitrogen and nitrite nitrogen have different pollution level in different water. 通过分析，浮游植物、细菌、非离子氨和亚硝酸盐氮等因子在不同的水体中表现出不同程度的污染。
- The measurement of nitrate nitrogen and nitrite nitrogen in seawater has such disadvantages as many disturbing components,long time,poor repeatability and accuracy. 水体中尤其是海水中硝酸盐氮的测定较繁琐,干扰物质多,分析时间长,重现性差,准确性不高。
- The results show that nitrite nitrogen concentration influences the removal of TN greatly;the rate of TN removal and pH increase with the increase of nitrite nitrogen concentration. 以生物膜滤池为厌氧氨氧化反应器,考察了进水中的亚硝酸盐氮浓度对总氮去除率的影响。
- Study on the toxicity of nitrite nitrogen to Babylonia areolata 亚硝酸盐氮对方斑东风螺毒性的研究
- Keywords soil nitrite nitrogen measurement method carcinogen; 土壤;亚硝酸盐氮;测定方法;致癌物;
- Study on Nitrite Nitrogen Accumulation in Zeolite Biological Aerated Filter 沸石曝气生物滤池中亚硝酸盐氮积累的研究
- A method to determine nitrite nitrogen in water by ion chromatography 离子色谱法测定生活饮用水中亚硝酸盐氮
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Determination of Nitrate and Nitrite Nitrogen in Environmental Water Using Continuous-Flowing Analyzer 连续流动分析仪测定环境水样中硝酸盐氮和亚硝酸盐氮
- Removal Effect of Nitrite Nitrogen by Biological Sand Filter and Its Influencing Factor 生物砂滤池去除亚硝酸盐氮的效果及影响因素分析
- Seasonal Cycle Analysis of the Nitrate Nitrogen and Nitrite Nitrogen in the Bohai Sea 渤海硝酸盐氮和亚硝酸盐氮季节循环分析
- EFFECT OF NITRITE NITROGEN REMOVAL BY BIOLOGICAL AERATED FILTER AND AFFECTING FACTORS 曝气生物滤池去除亚硝酸盐氮的效果及影响因素
- Research on Rapid and Accurate Determination Method of Ammonia Nitrogen and Nitrite Nitrogen 氨氮和亚硝酸氮快速准确测定方法研究
- Method Study of Fast Field Analysis of Nitrite Nitrogen in Water and Waste Water 水和废水中亚硝酸盐氮的现场快速分析方法研究
- Improvement of the Method for Rapidly Determinating Minor Nitrite Nitrogen in Environmental Water Body 环境水体中的微量亚硝酸盐氮快速测定方法的改进
- Keywords immobilized microbe;ammonia nitrogen;nitrate nitrogen;nitrite nitrogen;biodenitrification; 固定化微生物;氨氮;硝酸盐氮;亚硝酸盐氮;生物脱氮;
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis(cfa and fia) and spectrometric detection 用流量分析法和光谱检出法测定亚硝酸氮和硝酸氮及两者的总含量
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
