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- The basic principles,current situation and trend of urban sewage biological denitrogenation are introduced. 本文介绍了城市污水生物脱氮的基本原理,研究现状和进展。
- Biological denitrogenation theory,A/O technological process,mire taming and operation management were discussed in this paper. 介绍了生物脱氮原理、A/O工艺流程及污泥驯化和运行管理。
- Biological denitrogenation technology,which removes more nitrogen from the original average processing by rate of 2% ammoniac nitrogen is narrated in aspects of theory,equipment and processes. 从原理、设备与流程等方面叙述了生物脱氮技术,使原来平均处理率仅为2%25的氨氮得到了较为满意的效果。
- Biological method A+O+A is developed through innovation to the original dephenolizing tank to conduct biological denitrogenation and the result is good.The discharging water is recycled to be used. 利用原有的生化脱酚池改造为A+O+A生物法,进行生物脱氮,效果很好,处理后的出水全部循环使用,不外排。
- It was considered that,biological denitrogenation process featured by good treatment effect,stable technology and low cost,which should be the first choice for the engineering design. 认为生物脱氮技术处理效果较好,工艺稳定、处理成本低,是目前工程设计中应优先考虑的脱氮工艺,其中A/O、A2/O已成熟,而其它工艺有待进一步研究发展。
- Keywords anaerobic ammonium oxidation;autotrophy;biological denitrogenation; 厌氧氨氧化;自养菌;生物脱氮;
- Some biological molecules have the form of a helix. 有些生物分子呈螺旋状。
- Keywords ammonia wastewater;wastewater treatment;nitrosofication;nitrification;biological denitrogenation; 氨氮废水;废水处理;亚硝酸型硝化;硝酸型硝化;生物脱氮;
- Keywords residual ammonia water;A/O biological denitrogenation;catalysis wet oxidation;utilization of flue off gas; 剩余氨水;A/O生物脱氮;催化湿式氧化;烟道废气的利用;
- The school has a large biological laboratory. 这所学校有一个很大的生物实验室。
- Keywords biological denitrogenation;simultaneous nitrification and denitrification;heterotrophic nitrification;aerobic denitrification; 生物脱氮;同步硝化反硝化;异养硝化;好氧反硝化;
- The convention bans the stockpiling of biological weapons. 该公约禁止储存生物武器。
- biological denitrogenation 生物脱氮
- The application of mathematical principles to biological processes. 生物数学应用于生物学过程的数学原理
- The biological study of bodies of water. 水生物学研究水体的生物学
- A series of batch biological reactors are used. 可用一组间歇式生物反应器。
- Human biological rhythms are related to the natural cycle of day and night. 人的生物节奏与昼夜的自然循环有关。
- Songs and laughter lubricate the biological clock. 歌声笑语可使人体生物钟顺畅运转。
- Reproducing by biological fission. 裂殖的由生物分裂而生殖的
- Advocacy of or belief in biological evolution. 对生物进化的主张和信仰