硝化

The performance of air-lift internal-loop nitrifying reactor were tested and the granulation of nitrifying activated sludge was discovered.

首次在硝化反应器中发现了硝化污泥的颗粒化现象。

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。

This product is composed of high-effect compound bacillus, photosynthetic bacteria, nitrifying bacteria, denitrifying bacteria, sulfurizing bacteria etc.

本品由高效复合芽孢杆菌、光合菌、硝化菌、反硝化菌、硫化菌等有益菌群组成。

An introduction is made on the application of an air supply low pressure jet aeration system in an improved oxidation ditch in the treatment of the liner board effluent with a detailed introduction and analysis on the commissioning of the operational process.

介绍了采用供气式低压射流曝气系统的改良型氧化沟用于箱纸板废水处理，并对整个调试运行过程进行了分析。改良型氧化沟采用全好氧曝气，沟中不存在缺氧区和厌氧区，抑制了传统氧化沟中的硝化与反硝化作用，降低了营养盐的投加成本，具有很强的抗冲击能力。

At higher concentrations hydrogen bondings formed due to the residual hydoxyl groups of nitrocelluloses lead to viscoities only a weak function of shear rates.

在较高浓度时，硝化纤维素分子链上未硝化的羟基所形成分子间的氢键作用，使黏度不因剪切率升高而急遽降低。

The nitrobacteria were elutriated from PAOs (phosphate accumulating organisms) and proliferated within the BAF because of the short 8 days'SRT of SBR.

根据PAOs(phosphate accumulating organisms)和硝化菌在泥龄上的差异，采用8d的泥龄，在SBR反应器中逐步将硝化菌淘洗出去。

After two rice-wheat rotations, 11%–13% of applied labeled N remained in 0-60 cm soil (mostly in the 0-20 cm soil); leaching of labeled urea applied in rice season was little (only 0.6%–1.1% of the applied N accumulated in 20-60 cm soil), and the leaching of fertilizer N occurred in wheat season and the beginning flooding period of the next rice season; 47%–54% of applied fertilizer N was lost and ammonia emission and nitrification-denitrification were the main pathways.

水稻季施用的肥料氮向耕层以下移动很少，20—60 cm土层中累积肥料氮仅占施氮量的0.6%～1.1%，主要发生在小麦季及水稻泡田时期，肥料氮损失占施氮量的47～54%，氨挥发和硝化反硝化气态损失是主要途径。

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%。

Based on incubation tests with labelled and unlabelled urea, this payer discussed the effects of hydroquinone on hydrolysis of urea, release and volatilization of ammonium, nitrification, denitrification and immobilization.

本文根据用标记和非标记尿素进行的培养试验，论述了氢醌对于尿素的水解、氨的释出和挥发、硝化和反硝化作用以及生物固持的影响。

The results show that:①The forest soils have the stronger nitrification, but also the nitrification in surface horizon is stronger than the undersoils.

结果表明：①森林土壤有较强的硝化活性，且表土层比底层土强，同时根际土利于硝化作用进行，根际效应R/S在4.5左右；②淹水厌气培养24h，-N的消失率为52％？

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。