This paper introduces the principles of biological phosphorus and nitrogen removal with the A2/O process and decribes the flow chart of this process which is then analyzed in detail.
本文阐述了生物脱氮除磷的原理和A2／O工艺流程，并对该工艺流程进行了详细的分析研究，指出了它存在的问题，提出了对A2／O工艺流程的改进措施。
The affecting factors of the continuous-flow two-sludge system for simultaneous biological phosphorus and nitrogen removal were investigated in order to decide on the best working state of the system.
目的为了深入研究连续流双污泥反硝化同时除磷系统的主要影响因素，确定系统最佳运行条件。
The removal of nitrogen has gone from 13% to 85%; phosphorus from 44% to 64%; and colours and dyes from 52% to 80%.
水中氮、磷和印染颜料的去除率分别从13%、44%和52%增到85%、64%和80%。
Reducing the nutrient quantity released by sediment through manipulating the period for digging up sediment is necessary to enhance removal ability of HBFM for dissolved nitrogen and phosphorus.
因此合理控制底泥清除周期减少底泥释放量，是提高HBFM溶解性氮、磷去除能力的重要途径之一。
Prolonging properly anaerobic treatment time and increasing aeration rate of nitrogen can improve anaerobic environment and the activity of sludge, increasing the removal rate of phosphorus.
适当延长厌氧处理时间和适当增大厌氧过程曝气速率可以改善厌氧环境及活性污泥性能，提高磷的去除率。
The results show that in-depth treatment process have good removal effect for the COD, BOD, total phosphorus, ammonia nitrogen, suspended particulate, turbidity, OIL and total iron of waste water.
结果表明：深度处理工艺对源污水中COD、BOD、总磷、氨氮、悬浮物、浊度、OIL、总铁等均有很好的去除效果。
The removal efficiency of nitrogen (N) and phosphorus (P) from three kinds of eutrophicated water by terraneous ornamental foliage plant-beet on floating-beds was researched under low temperature.
以陆生观叶植物红叶甜菜为材料研究其对不同富营养化水体氮磷的去除。
The removal efficiency of nitrogen and phosphorus were 30.4% and 19.13%, respectively. And the next were cattails and Umbrella Plant. The removal effect of calamus was the worst.
其中，美人蕉对总氮和总磷的去除效果较好，其去除率分别是30.4%，19.13%，其次为香蒲和伞竹，效果较差的是菖蒲。
The following is the outline of the principle and processes of nitrogen and phosphorus removal, the conflict and solution of nitrogen and phosphorus removal and result of experimental research.
以下简述氮和磷的去除原理、除磷脱氮的矛盾关系及对策和本实验研究结果。
Biological nutrient removal is a relatively low-cost means of removing nitrogen and phosphorus from wastewater.
在对废水进行脱氮除磷时，去除生物营养素是一种相对成本较低的方法。
Nitrogen and phosphorus removal is important in water pollution control.
城市污水中氮、磷的处理是水污染控制的一个重要问题。
Nitrogen and Phosphorus are restricted severely to prevent the water eutrophication. Biological nutrient removal (BNR) is an important water pollution control technology.
为遏制水体的富营养化，氮、磷的排放标准日趋严格，生物脱氮除磷工艺能有效地去除水体中的氮、磷。
Sewage treatment by improved ICEAS process was carried out at low temperature; the effect of organics, nitrogen and phosphorus removal by improved ICEAS process was investigated .
采用改良型ICEAS工艺进行低温污水处理，考察了低温条件下改良型ICEAS工艺去除有机物及脱氮除磷的效果。
In wastewater biological nitrogen and phosphate removal processes, microorganisms need to consume certain organic carbon sources both in denitrification and phosphorus uptake.
污水生物脱氮除磷工艺中，微生物在反硝化和吸磷时需要消耗一定的有机碳源。
The effect of different feed COD concentrations on the removal of phosphorus and nitrogen in a sequencing batch moving bed biofilm reactor(SBMBBR) was studied.
研究了序批式移动床生物膜反应器（SBMBBR）中COD进水浓度对同步脱氮除磷效果的影响。
The operating results show that the process has advantages of excellent performance of nitrogen and phosphorus removal, low sludge production, good sludge dewaterability and no odor release.
运行结果表明，该工艺具有脱氮除磷效果好、污泥产量低、污泥脱水性好和污泥不产生臭气等显著优点。
The anaerobic tank which is set before the UNITANK process improves nitrogen and phosphorus removal efficiency efficiently.
由于在UNITANK工艺前端增设了厌氧池，有效提高了UNITANK工艺的脱氮除磷效果。
The practice shows that the humus soil activated sludge process can enhance nitrogen and phosphorus removal, improve greatly the sludge dewaterability and realize the odor…
实践表明，腐殖土活性污泥工艺可强化对氮、磷的去除，使污泥脱水性能大大改善，实现污水处理流程的无臭化。
Discrepancy in TN and TP removal efficiency by duckweed treatments may be due to a difference between nitrogen and phosphorus removal mechanisms.
不同浮萍处理对TN、TP去除效果的不同可能是由于氮、磷去除机制不同所致。
Experiments of nitrogen and phosphorus removal from rural domestic wastewater in the Taihu Lake basin were carried out by the two-stage subsurface flow constructed wetland process.
采用二级串联潜流式人工湿地系统对太湖地区农村生活污水进行了脱氮除磷的试验研究。
The research and practical appliance of biological nitrogen and phosphorus removal technology is gradually deserved appreciation.
生物脱氮除磷工艺的研究和应用工作日益得到重视。
Nitrogen and phosphorus removal mechanism in subsurface wastewater infiltration system treating domestic wastewater was studied.
对地下渗滤系统处理生活污水的氮磷去除机理进行了研究。
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。
Commutative multi-influent wastewater treatment processs with five tanks for nitrogen and phosphorus removal, a new developed process, consisted of five biochemical reaction tanks and a settling tank.
论文研究了一种新型污水生物处理工艺——多点交替进水五箱一体化活性污泥法除磷脱氮工艺。
Sequencing batch reactor (SBR), because of the characteristics of good effects of nitrogen and phosphorus removal and taking up small area, obtained widespread concern and has be applied universally.
序批式反应器（SBR）因其具有良好的脱氮除磷效果且占地面积小等特点而得到广泛关注与普遍应用。
The biological removal effect of nitrogen and phosphorus and limiting factor of SBR technique after anaerobic digestion of centralized swine wastewater were investigated and studied.
探讨了集约化猪场废水厌氧消化后，SBR法生物脱氮除磷效果及限制因子。
The experiment on the effect of nitrogen and phosphorus removal of municipal sewage by biological pellet fluidized bed was carried out.
进行了生物造粒流化床对城市污水脱氮除磷效果的试验。
There are lots of bacteria, protozoan and metazoan species immobilized on the carrier surface in G-BAF, which can enhance the removal effect of nitrogen, phosphorus and refractory organic compounds.
G -BAF的载体表面附着有大量的细菌以及多种形态的原、后生动物，增强了对氮、磷及难降解有机物的去除能力。
The mechanisms of of the biological removal of nitrogen and phosphorus are explained. The technologies of MSBR, UCT and BCFS are analyzed.
在阐述城市污水生物脱氮除磷机理的基础上，分析生物脱氮除磷的M SBR工艺、U CT工艺和BCFS工艺。
The effects of the return sludge ratio and the return mixed liquid ratio on the removal of nitrogen and phosphorus were studied in the modified A2/O process.
重点介绍了坂雪岗污水处理厂的复合改良A2/O工艺的运行方式及除磷效果，并分析了实际运行中存在的问题及工程设计时的注意事项。
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