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- Nodule bacteria are very good at biological nitrogen fixation. 根瘤菌是生物固氮的能手。
- Application of Biological Nitrogen Fixating Techniques in Returning Plowland to Pasture and Forest. 生物固氮技术在退耕还林还草中的应用。
- Nitrogen fixation trees of Leguminosae and non-Leguminosae are important biological nitrogen fixation resources. 摘要豆科及非豆科固氮树种是重要的生物固N资源。
- It also summarizes basic principles on biological nitrogen and phosphorous removal as well as some new significant views. 另外,还简略介绍了生物除氮磷的基础理论。
- Biological nitrogen removal technology via short-cut nitrification and denitrification is very significant for saving energy and carbon sources. 短程硝化反硝化技术对于节省能源和碳源具有重要意义。
- The biological nitrogen and phosphorus removal effect and characteristics of SBR process in the treatment of sludge water from WWTP were investigated. 考察了采用SBR工艺处理城市污水厂污泥水的脱氮除磷效果及其特性。
- The traditional methods of biological nitrogen removal adopted initrification and nitrification technology,but there are lots problems. 传统的生物脱氮采用的是硝化、反硝化工艺,但存在着很多问题。
- Biological nitrogen fixation (BNF) is strongly associated with global nitrogen cycling and global changes due to its effects on release of greenhouse gas. 生物固氮对全球生态系统氮素循环和全球变化有着重要影响,但是由于测定方法的原因,过去对生物固氮,特别是多年生固氮植物的共生固氮的定量研究不足。
- Biological nitrogen fixation (BNF), which provides all the plants on the globe with 75% of fixed nitrogen, is one of the important projects in life science. 生物固氮为全球的植物提供75%25的氮素,是生命科学中的重大课题。
- Y.Z.Peng, G.B.Zhu and S.Y.Wang.Use of C/N ratio as fuzzy control parameter for improved nitrogen removal in step-feed biological nitrogen removal process. 吴淑云、彭永臻、祝贵兵、王淑莹.;分段进水生物脱氮工艺最高脱氮率的探讨
- The application of the genetic algorithms for the influent flow optimized distribution in the four stage step-feed biological nitrogen removal(BNR) pilot-scale system was discussed. 以四级分段进水生物脱氮工艺为例,探讨了遗传算法在该工艺进水流量优化分配中的应用。
- Applying nitrogen fertilizer could enhance the fresh weight and dry weight of Chinese milk vetch, but it had negative effect on the formation of root nodule and the biological nitrogen fixation. 施用氮肥能促进紫云英干物质的积累和鲜草产量的提高 ,但对其根瘤的形成及生物固氮有负面影响。
- The reaction mechanics, operation conditions and influence factors of anaerobic ammonium oxidation (ANAMMOX) for biological nitrogen removal are summarized, and feasibility of ANAMMOX with SHARON and potential of ANAMMOX are also reviewed. 摘要综述厌氧氨氧化微生物脱氨的反应机理、运行条件及影响因素,介绍厌氧氮氧化辅以中温亚硝化生物脱氮的可行性,以及厌氧氨氧化的发展前景。
- In this article, the proceeding of research regarding biological nitrogen fixation (BNF) in intercropping system during the past decades was reviewed, and the role of BNF and its transfer in the intercropping system was discussed as well. 本文对该领域近年来的研究进展作一综述 ,同时分析豆科 / /禾本科间作系统中生物固氮的作用及其转移途径和机制。
- Based on the Barnard system under mixed flow condition for biological nitrogen control,the maximum anaerobic time of nitrobacter was first put forward,and a mathematic model for the system was established. ? 针对完全混合式Barnard系统的流态及系统中微生物的特点,首次提出硝化菌极限缺氧时间的概念,为这种生物脱氮系统建立了一套数学模型。
- Based on the separate research on anoxic and anaerobic and aerobic process for biological nitrogen and phosphorus removal of municipal wastewater,a reversed traditional A~2/O(anaerobic/anoxic/oxic) process without inner circumfluence was developed. 以缺氧、厌氧及好氧工段单元试验研究为基础,以城市污水为研究对象,将传统A2/O工艺厌氧/缺氧工段倒置,取消内回流,进行生物脱氮除磷的研究。
- The most common method of biological nitrogen removal is by combining the nitrification of the autotrophic nitrobacter and nitrosomonas with the denitrification of heterotrophic denitrifying bacteria. 生物除氮最常利用的是将自营性硝酸菌、亚硝酸菌之硝化作用与异营性脱硝菌之脱硝作用结合。
- Biological nitrogen fixation and nitrogen transfer wasdetected by 15N dilution technology. The percentage of BNF, fertilizer nitrogen andsoil nitrogen to nitrogen yield of grass and legume in monoculture and mixture wereanalyzed, respectively. 利用同位素15N稀释法测量豆科牧草固氮和转氮能力,分析生物固氮、肥料氮和土壤氮在单、混播条件下羊草和豆科牧草体内的比例,并计算生物固氮量对草地氮产量的贡献率。
- Symbiotic nitrogen fixation is the main part of BNF (biological nitrogen fixation) characterized by high efficiency and adopted in a wide range, and is of significant practicality as well. 摘要共生固N是生物固N的主体部分,具有固N效率高、应用范围广等特点。
- A lab-scale SBR was employed to treat domestic wastewater and investigate the achievements and stability of shortcut biological nitrogen removal under real-time control conditions. 采用小试SBR反应器处理实际生活污水,研究了实时控制条件下短程生物脱氮的实现和稳定性。