1.ammonium is oxidized to dinireogen gas by particular microorganisms with nitrite as the electron acceptor under the anaerobic condition to realize the denitrification. SHARON (Single reactor High activity Ammonia Removal Over Nitrite)and OLAND(Oxygen Limited Autotrophic Nitrification Denitrification) are the most famous processes of nitration, which usually use CSTR (Continuously Stirred Tank Reactor)and MBR (Membrane BioReactor) as reactor respectively.
目前最常见的工艺类型为SHARON(Single reactor High activity Ammonia Removal Over Nitrite)工艺和OLAND(Oxygen Limited Autotrophic Nitrification Denitrification)工艺两种,其中短程硝化部分以CSTR(Continuously Stirred Tank Reactor)和MBR(Membrane BioReactor)为主。
2.The characteristics and basic conceptions of waxen crude oil are detailed summarized, the technology of wax removal and inhibition, especially mechanism and field application in Shengli Oilfield of wax removal and inhibition in crude oil of microorganisms used for oil recovery are introduced, the directions of wax removal and inhibition in crude oil are mainly based on wax inhibition, wax removal is secondary.
摘要阐述了含蜡原油及其特点、含蜡原油表征的基本概念，详细概述了原油清防蜡技术，重点介绍了微生物清防蜡的机理及其在胜利油田的矿场应用情况，提出了今后的原油清防蜡技术研究应以防蜡技术为主，清蜡技术为辅的总体方向发展。
3.Donors were checked for the onset of estrus at 12-h intervals from 24h after CIDR removal and intrauterine insemination was performed between 44 and 46h after CIDR removal in all donor ewes Recepient ewes were injected with 250 to 300IU PMSG at the same time of sponge removal and checked for the onset of estrus at 12-h intervals from 24h after sponge removal for about 3d.
撤栓后24h开始试情，并在撤栓后44~46h对发情供体进行子宫内输精。 受体在撤栓同时注射PMSG250~300IU。
4.This study shows that PAC-PDMDAAC, in case that used to treat the dyeing wastewater, has remarkable results in reducing COD removal rate and color removal rate. COD removal rate can reach 67.4% while the color removal rate is 50.4%.
实验表明:PAC-PDMDAAC处理印染废水,对降低废水中的化学需氧量、色度具有显著效果,COD去除率为67.4%,脱色率为50.4%。
5.The results show that, when increasing the feed rate of the grinding wheel, decreasing the rotating speed of the wafer chuck table and using coarser grit grinding wheel, the material removal rate in the wafer rotating grinding increase, the feed rate of the grinding wheel has greater influence on the material removal rate; when suitably increasing the rotating speed of the grinding wheel, decreasing the feed rate of the grinding wheel and using finer grit grinding wheel, the wafer surface roughness can be reduced; there exists a critical rotating speed of the grinding wheel (about 2300rpm), beyond which the material removal rate evidently decreases and the spindle motor current and wafer surface roughness steeply increase; when the grit size of the grinding wheel is finer than #2000, the material removal rate decreases and the wafer surface roughness has no obvious improvement.
研究结果表明，增大砂轮轴向进给速度和减小工件转速，采用粗粒度砂轮有利于提高磨削矽片的材料去除率，砂轮轴向进给速度对材料去除率的影响最为显著；适当增大砂轮转速，减小砂轮轴向进给速度，采用细粒度砂轮可以减小磨削表面粗糙度；在其它条件一定的情况下，砂轮速度超过一定值会导致材料去除率减小，主轴电机电流急剧增大，表面粗糙度变差；采用比#2000粒度更细的砂轮磨削时，材料去除率减小，矽片表面粗糙度没有明显改善。
6.Cadmium removal from medium by F2 under liquid culture was not so stable with low cadmium concentration below 4.61mg/L, but removal ratio reached 96% with initial cadmium concentration of 163.8mg/L and cadmium content of biomass reached 28%, which showed high capacity of cadmium accumulation by F2. Growth phase of biomass was important for cadmium removal by living biomass of F2, and components of medium seemed interfered in the removal ability.
F2对液体培养基中低浓度镉(4.61mg／L以下)的去除效果不太稳定，但初始镉浓度为163.8mg／L时，其去除率为96％，菌体最大镉含量可达28％，显示了较大的富集容量。 菌龄对活体富集镉能力有较大影响，培养基成分对富集有干扰作用。
7.A previous modeling study predicted that phosphorus removal and recovery can be combined in a biological nutrient removal(BNR) process,which would benefit for improving the effluent quality of bio-phosphorus removal and for lowering the ratio of the influent COD/P required for bio-phosphorus removal.
在前期的模拟试验中曾预测,磷回收介入生物营养去除(BNR)工艺,不仅有利于提高生物除磷效果,而且可以降低生物除磷所需的进水COD/P值。
8.The result shows that,under the condition of the addition of unchanged chitiosan(VCG) 150mg/L ,pH 5.5 and setting time 60 min,we can achieve the best outcome:the removal rate of turbidity is about 92%,the removal rate of color is about 88%,the removal rate of COD cr is about 78% and the removal rate of SS is about 91%. The water can be recovered as a byproduct.
结果表明 ,在改性壳聚糖VCG投加量为 15 0mg/L ,pH值为5 5 ,沉降时间为 6 0min的条件下 ,混凝效果最佳 ,浊度去除率可达到 92 %左右 ,色度去除率可达 88%左右 ,CODcr去除率可达到 78%左右 ,悬浮物SS去除率可达 91%左右 ,水质完全可以加收利用。
9.From angle of academic study, according to the relative rules of domestic and international law about wreck removal, the paper will analyses the problems that exist in practice of wreck removal, summarize the advantages and disadvantages of the existing rules of law about wreck removal, expound the views and purposes about some difficult problems, in order to establish the legal system of wreck removal suitable for the condition of our country.
鉴于此，本文将从学术研究的角度出发，结合国内外相关法律法规以及国际公约的规定，剖析目前我国沉船沉物打捞清除实践中存在的矛盾和问题，总结我国现存法律法规调整和规范沉船沉物打捞清除行为的利弊，阐述对某些难点问题的建议和主张，从而逐步建立起适合我国国情的沉船沉物打捞清除法律制度。
10.The effects of grit sizes of wheel, wheel speed, contact force, wheel sharpening and coolant on the removal rate of PCD material are studied In conclusion, it suggested that the removal of PCD material is caused by mechanical force and the removal rate is higher as the effective grinding power is higher during grinding cutting tools
研究砂轮粒度、PCD粒度、砂轮转速、工作压力、砂轮修整和冷却液等对聚晶金刚石（PCD）磨除率的影响，指出PCD刃磨时，材料的去除是机械作用的结果，当有效磨削功率较大时，材料磨除率较高。
