查询词典 aeration

It was revealed that the balanced DO concentration appeared soon after the reaction stage starting,and DO level rose quickly in large range when COD was degraded to its nondegradation concentration under that condition,no matter that change the aeration rate or the MLSS concentration in large range,or change the initial COD concentration gradually or suddenly in the various experimental conditions.

结果表明，无论使曝气量或初始污泥浓度大幅度变化，还是逐渐或突然改变初始有机物浓度等各种试验条件，都会在反应阶段开始不久出现所谓平衡DO浓度现象；当有机物达到其难降解浓度时DO浓度迅速地大幅度升高。

Aquatic plants were soaked in two purifying-tanks to investigate the effects of illumination intensity and aeration on diurnal variations of Chla,SP,POD of Pontederia cordata and pH,DO,COD,NH+4-N,TP of water from purifying-tanks when treating the malodorous river water at seven different times,another blank purifying-tank was set as a control. Comparative studies and correlation analysis of these different indicators were carried out to improve the plants working efficiency and provide scientific basis for optimal operation of plant purifying-tanks.

测定了曝气和非曝气的2个植物净化槽在1 d中7个不同时间点的出水水质理化指标(pH、DO、COD、NH+4-N、TP)及植物叶片的叶绿素、可溶性蛋白含量及过氧化物酶活性，另设空白槽为对照；试验目的是研究各指标的日变化情况及相互关系，为提高梭鱼草净化黑臭河水的处理效率及其植物净化槽的合理优化运行提供科学依据。

The RE of TP, COD and turbidity except NH4+-N in the aeration process by adding AS and PAM for enhanced chemical phosphorus removal increased by 7.3~59.2%, 5.0~20.3% and 10.9~34.7%, respectively. Given enough dissolved oxygen, the nitrification was not affected by adding AS and PAM in the dosage range of the study. The RE of TP, COD and turbidity by postpose coagulation were better than by simultaneous coagulation, however, coagulation and sedimentation equipments were needed in postpose coagulation process. Therefore simultaneous coagulation was more suitable for transformation of AB process for chemically enhanced phosphorus removal.

曝气过程中投加AS和PAM复配化学强化除磷，总磷、COD、浊度去除率分别提高了7.3～59.2%、5.0～20.3%、10.9～34.7%，但不能提高氨氮的去除率；在溶解氧足够时，本研究投加量范围的AS和PAM的加入对硝化作用无影响；后置混凝对TP、COD、浊度的去除效果优于同步混凝，但需增加混凝沉淀设备，因此同步混凝更适合于于AB工艺的化学强化除磷改造。

Then,the detailed layout calculation and revampment programs on the distribution of aeration orifice were p...

改造后装置的运行结果表明，装置的催化剂循环管线流化稳定，催化剂密度和滑阀压降分布合理，反应温度的波动范围可控制在±1.5℃，解决了装置催化剂流化异常问题，提高了装置的生产运行水平。

Effects of initial pH,aeration rate,temperature,surface-active detergent,inducer and metal ions on laccase production from Trametes versicolor HS-03 were studied.

研究了培养基初始pH值、通气量、温度、表面活性剂、诱导剂、金属离子对云芝(Trametes versi-color)HS-03产漆酶发酵条件的影响。

The optimal nitrogen source is tryptone, the optimal carbon source is glucose, the optimal condition for lipase producing are inoculation for 1.5%, initial pH7.0, clutivated aerobically at 28℃with an aeration rate of 200rpm for 48 hours.

作者从成都及周边地区汽车修理厂，机油厂、植物油厂、餐厅、菜市场等富含油脂的土壤中，用溴甲酚紫平板筛选得到80余株产脂肪酶的菌株，其中大部分酶活在10—20u／ml范围内。

Trichlorophenol was added as a metabolic uncoupler into activated sludge,which was cultured in batches and with continuous aeration.

2，4，5-三氯苯酚作为代谢解偶联剂投加到连续曝气分批培养的活性污泥工艺中，在30 d的运行期间，TCP质量浓度为2.0 mg/L和4.0 mg/L的污泥产率分别比对照反应下降了约25%和50%，而基质的去除率及出水的氮和磷浓度均未受很大影响，污泥的沉降性能也未受影响。

At present,study and application low density underbalance drillig fluid focus on four aspect:①gas drilling fluid;②aeration drilling fluid;③emulsi on drilling fluid;④foam drilling fluid.

低密度钻井液的研究与应用，目前基本上集中在下面 4大类钻井液上：①气体钻井液；②充气钻井液；③乳化钻井液；④泡沫钻井液。

Aeration: Wine like the sponge, often suck the air around bottle, in order to prevent mould flavor, it will be better if can ventilate .

通风：葡萄酒像海绵，常将周围的味道吸到瓶里去，最好能够通风以防止霉味太重。

It showed that dissolved oxygen concentration and aeration time were important factors which influenced the growth of ceils and the ethanol fermentation intensity.

结果表明，溶氧浓度和通气时间是影响菌体生长和乙醇发酵强度的重要因素。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。