查询词典 Nitrobacter

The characters and performance of the biofilm were studied. When the concentration of nitrite is 206.82 mg/L, the velocity of nitrification is 260 mg/L·d. The best performed bacteria, N-20, were identified as Nitrobacter sp.

实验得到了稳定的自养硝化生物膜；当NO-2浓度为206.82mg/L时，生物膜的稳定硝化速率可达260mg/L·d；经鉴定，硝化速率最高的N20菌株属硝化杆菌属(Nitrobactersp。)。

A submerged membrane sequencing batch bioreactor was used to treat coke wastewater.Long running performance showed that due to the membrane interception,the nitrobacter is enriched in reactor in the interest of improving the nitrification rate;the maximum ammonia nitrogen loading can be 0.19 kg/(m3·d) with effluent ammonia nitrogen＜1 mg/L (removal rate 99%).Long sludge retention time may result in the accumulation of metabolic products and high molecular materials,and thus inhibiting activity of nitrate bacteria and causing a ccumulation of NO2-,which is beneficial to the running of short-cut denitrif ication.However,too long retention time will affect the activity of nitrite bacteria,detrimental to the treatment effect of ammonia nitrogen.

采用浸没式膜生物反应器处理焦化废水的试验结果表明：膜的截留作用可使硝化菌在反应器内富集而有利于提高系统的硝化能力，其去除氨氮的最高负荷为0.19kg/(m3·d)，出水氨氮＜1mg/L(去除率为99%)；泥龄长可能使微生物的代谢产物或其他大分子物质积累，从而抑制硝酸盐细菌的活性，导致NO2-积累而有利于短程脱氮的进行，但泥龄过长也会影响亚硝酸盐细菌的活性，从而影响对氨氮的处理效果。

Long running performance showed that due to the membrane interception,the nitrobacter is enriched in reactor in the interest of improving the nitrification rate;the maximum ammonia nitrogen loading can be 0.19 kg/(m3·d) with effluent ammonia nitrogen＜1 mg/L (removal rate 99%).

焦化废水含氮量高且含有大量有毒和难降解物质，若采用传统生物处理工艺不但流程较长，处理效果也较难达到要求，而膜生物反应器通过膜分离强化了生物处理效果，克服了传统工艺的弊端［1］。

A submerged membrane sequencing batch bioreactor was used to treat coke wastewater.Long running performance showed that due to the membrane interception,the nitrobacter is enriched in reactor in the interest of improving the nitrification rate;the maximum ammonia nitrogen loading can be 0.19 kg/(m3·d) with effluent ammonia nitrogen＜1 mg/L (removal rate 99%).Long sludge retention time may result in the accumulation of metabolic products and high molecular materials,and thus inhibiting activity of nitrate bacteria and causing a ccumulation of NO2-,which is beneficial to the running of short-cut denitrif ication.However,too long retention time will affect the activity of nitrite bacteria,detrimental to the treatment effect of ammonia nitrogen.

简介： 采用浸没式膜生物反应器处理焦化废水的试验结果表明：膜的截留作用可使硝化菌在反应器内富集而有利于提高系统的硝化能力，其去除氨氮的最高负荷为0.19kg/(m3·d)，出水氨氮＜1mg/L(去除率为99%)；泥龄长可能使微生物的代谢产物或其他大分子物质积累，从而抑制硝酸盐细菌的活性，导致NO2-积累而有利于短程脱氮的进行，但泥龄过长也会影响亚硝酸盐细菌的活性，从而影响对氨氮的处理效果。

The results showed that the percentage of ammonia oxidizing bacteria and nitrite oxidizing bacteria in the activated sludge was 15.7%±3.7% and 12.9%±3.2%, Nitrosomonas europaea-Nitrosococcus mobilis lineage were the dominant AOB, Nitrobacter spp.

结果表明，污泥中氨氧化菌的含量为15.7%±3.7%，优势菌属为Nitrosomonas europaea-Nitrosococcus mobilis；亚硝酸氧化菌的含量为12.9%±3.2%，优势菌属为Nitrobacter spp。。

Nitrobacter can gradually acclimate to nitrous nitrifying conditions and refreshed, so the sludge should acclimation and the nitrite accumulation disappear.

3低浓度氨氮废水亚硝化系统稳定运行一段时间之后，硝酸菌能逐渐适应亚硝化条件，恢复活性，从而使污泥产生适应性，亚硝化现象消失。

The Heterotrophic bacteria, nitrosomonas, epiphyte and rhizosphere in non-rhizosphere zones are more than the contrast in the sample with the inoculants and enzyme, contrary to the nitrobacter and denitrifying bacteria.

菌剂和酶制剂的加入使得非根际泥样异养细菌、真菌、放线菌和亚硝酸细菌比对照组稍高，硝酸细菌和反硝化细菌则较少；而根际泥样中加菌剂和酶制剂组微生物数量比空白组高出1—2个数量级，在投加菌和酶制剂后酶活性无论在根际还是非根际都得到提高，高于对照组约5—6个酶活单位。

UV-B radiation decreased significantly thequantity of bacteria,actinomyces and fung.UV-B rediation affected significantly the quantity of azotobacter, nitrobacter,denitrifying bacteria, cellulose decomposing bacteria and phosphate decomposing bacteria,but these effects depended ondevelopmental stages of spring wheat.The population qua...

UV－B辐射能显著降低细菌总数以及放线菌和真菌数量；UV－B辐射对好氧性自生固氮菌、亚硝酸细菌、反硝化细菌、好氧性纤维素分解菌和解磷细菌数量也有显著的影响，但这种影响具有生育期之间的差异，春小麦根际土壤微生物种群数量与土壤营养成分有关。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。