反硝化的

The discovery of aerobic denitrifying bacteria, autotrophic denitrifying bacteria, and denitrifying Phosphorus-removing Bacteria were also mentioned in this paper.

另外，还论述了近年来发现的有氧反硝化细菌、自养反硝化细菌及反硝化除磷细菌等方面的研究进展。

The active layer in MEEF composed of the granular material from plants, where earthworms act as declogger, decomposer and facilitating a nitrification-denitrification process within the biofilm.

蚯蚓在滤床中起分解和利用污水和污泥中的有机物和营养物质、清通滤床以及促进含氮物质的硝化与反硝化作用。

Under this condition, the system can achieve the best nitration and denitrification effect, and also can guarantee the better remove effect of organic matter.

系统在此条件下能够达到较佳的硝化和反硝化效果，并能保证较好的有机物的去除效果。

Microbiological nitrification and denitrification were considered to be the major sources of N2O in wastewater treatment processes.

微生物的硝化及反硝化过程为污水处理过程中N2O的主要产生源。

The micro-environment in sludge floc and the macro-environment of the reactor jointly cause that the SND process occurs in the system.

生物絮体的微环境和反应器的宏观环境共同促成了系统同步硝化反硝化过程的发生。

The sludge age in the reactor is large, so that nitrobacteria and nitrosomonas live together. The nitrogen removal via nitrite was possible mainly because the activity of nitrobacteria was inhibited rather than rushed out in number.

反应器内的污泥龄较长，硝酸菌和亚硝酸菌长期共存，发生短程硝化反硝化主要因为硝酸菌的活性受到抑制，而不是数量上受到淘汰。

The control standard of n itrogen and phos...

介绍了当前水体中磷、氮的控制标准和污水脱氮除磷(生化硝化、反硝化、生物除磷等)技术；同时适当选择了几例德国污水和地表水处理的典型工程实例。

Five different selective culture medium were used for sewage microorganisms directional isolated cultivate, advantage compound bacteria of photosynthetic bacteria, ammonifying bacteria, nitrifying bacteria, denitrifying bacteria and phosphate solubilizing bacteria could be gained through enrichment cultivate, then compounded them and used in test wastewater static treatment.

采用5种选择性培养基对水样中的微生物进行定向分离，通过富集培养，可以得到光合细菌、氨化菌、硝化菌、反硝化菌和磷细菌的优势菌群，进行复合后，再对试验污水进行静态处理。

Beneficial bacteria, it is with the characteristic of ammonification, nitrification, denitrification, desulfidation and dephosphorylation, etc., its growth is very quickly, it has the good efficiency for degrading water quality factor, it can well reduce ammonia and nitrogen, degrade nitrite, increase the dissolved oxygen in water, activate water quality, rich water, purify water, adjust water color, increase the transparency of water, restrain the reproduction of pathogen, prevent diseases of fish, by using this product for long term, can restore the water-ecological balance destroyed by slathering disinfector, antibiotics, form the advantage community, improve the water quality quickly, keep the good water ecological balance, decrease the disk of breeding, increase the benefit of breeding.

具有氨化、硝化、反硝化、脱硫除磷等生理特性，生长快，对水质因子降解效能高，可有效降低氨氮、降解亚硝酸盐、增加水中溶氧、活化水质、肥水、净水、调整水色、增加水体透明度、抑制病原菌繁殖、预防细菌性鱼病发生、长期使用本品可有效修复因大量使用消毒剂、抗生素等破坏的水生态平衡，形成优势种群，快捷改善水质质量，维持水体良性生态平衡。达到健康养殖、生态防病的目的，降低养殖风险，提高养殖效益。

When A〓-A〓-O-A〓 system, using fixed beds as anaerobic and anoxic reators and draft-tube fluidised bed as aerobic reactor (total hydraulic residence time 26. 2h, 9, 5, 7. 2 and 5h for each stage, and recycle ratio of mixed liquor from oxic reactor to the first anoxic reactor 5: 1), is used, the removal rates of COD, NH〓N and TN reach 97, 95. 5 and 90% respectively (influent COD, NH〓-N and TN 1204. 8, 274. 3 and 443mg/l respectvely).

采用A〓-A〓-O-A〓流程和简捷硝化-反硝化过程，以固定床作厌氧反应器和缺氧反应器，以内循环式生物反应器作好氧反应器，系统总水力停留时间为26.2h，各段停留时间分别为9h，5h，7.2h和5h，好氧反应器和第一级缺氧反应器之间的混合液回流比为5：1，系统进水COD为1204.8mg/l，NH〓-N为274.3mg/l，TN为443mg/l时，COD、NH〓-N和TN的去除率分别可达97%、95.5%和90%。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。