曝停组合对ABIR处理城市污水性能的影响

对连续流间歇曝气技术在活性污泥-生物滤池一体化反应器(AB IR)处理城市污水性能进行了研究,考察了在活性污泥段稳定运行条件下,生物滤池段在不同曝气-停曝时间组合下的整个反应器处理城市污水的性能.研究表明,反应器温度为20℃,活性污泥段负荷为0.4 mgCOD/mgMLSS.d,滤池段C/N为1.32、DO控制在1.0 mg/L、曝气-停曝时间为2 h/1 h时,反应器出水COD、SS、NH4+-N以及TN值均能达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级标准的B标准.     

采用石灰预处理和二级生物工艺处理垃圾渗滤液的小试研究

采用石灰预处理＋厌氧／好氧一级生物处理＋缺氧／好氧二级生物处理的组合工艺，并在二级生物处理系统中投加硅藻土形成生物硅藻土处理垃圾渗滤液．结果表明：投加硅藻土，可提高二级生物处理系统的活性污泥浓度，降低污泥有机负荷，从而达到较好的NH3-N去除效果．经本组合工艺处理，NH3-N去除率达到97％左右，出水NH3-N浓度为15mg／L左右．     

组合式厌氧折流板反应器处理城市污水的研究

在组合式厌氧折流板反应器(CABR)内置组合填料，采用厌氧活性污泥直接挂膜的方法启动了该反应器并对城市污水进行生物处理，研究了反应器启动过程中生物膜的生长情况及氨氮、COD、BOD的去除效果。     

硅藻土在城市污水处理中的应用

本文分析了目前城市污水的水质、水量等特点,并以此提出适合中国国情的污水处理技术.硅藻土处理城市污水技术是一项物化法污水处理技术, 高效的改性硅藻土污水处理剂是该技术的关键,在此基础上配合合理的工艺流程和工艺设施,该技术可实现高效、稳定而又廉价地处理城市污水的目的.     

传质填料反应器去除污水中有机物的试验研究

采用SCMT型自旋传质生物载体填料处理城市污水,结果表明,SCMT型自旋传质生物载体填料具有良好的传质性能,在停留时间为1.0 h,气水比为4∶1的情况下,反应器出水水质能够达到《城镇污水处理厂污染物排放标准》(GB18918-2002)中规定的二级标准。     

氧化沟膜生物反应器处理城市污水试验研究

通过小试,研究了氧化沟膜生物反应器对城市污水的处理效果与运行特性．结果表明,在水力停留时间(HRT)为4h,曝气/停曝时间为90min／30min等试验条件下,氧化沟膜生物反应器对城市污水中的DOC,CODc,,NH4-N,T—N和T—P等的平均去除率分别达到75％,90％,95％,80％和50％;氧化沟膜生物反应器具有较强的抗冲击负荷能力,当进水CODCr由265mg／L增加到1000mg／L时,出水CODCr仍能维持在100mg／L以下;在停运30d后,这种膜生物反应器去除有机物的性能在2d内可恢复,去除氨氮的性能在8d内可恢复;在3种膜清洗方法中,化学清洗效果最好,水力清洗效果次之,曝气清洗效果最差．     

序批式生物膜反应器脱氮除磷技术

详述了序批式生物膜（SBBR）技术的工作原理与技术特点，介绍了序式生物膜（SBBR）技术在污水生物处理中的研究与应用现状，探讨了序批式生物膜反应器（SBBR）在城市污水生物脱氮除磷中发展与应用。     

复合好氧生物法处理高质量浓度抗生素废水

采用复合好氧生物法为主的工艺处理高质量浓度抗生素废水。可达到COD和BOD5的去除效率≥95％的处理效果．对比试验表明,对难生物降解物质含量高的废水应用连续流处理工艺比间歇流处理工艺更为适宜．本复合式好氧处理反应器中能够形成复杂的微生物复合生态体系。改善了污泥的沉降性能,增强了反应器的处理能力．研究结果是在大型废水处理工程中得到的,可为同类高质量浓度有机废水好氧生物处理工程的建设提供技术参考数据．     

优势菌膜生物反应器处理洗车废水的研究

采用优势菌强化膜生物反应器，对洗车废水进行生物处理，改善出水颜色和气味．常温下水力停留时间为4h，气水比为50，污泥浓度为3500mg／L时，化学需氧量的降低几乎全部由生物系统完成，以利于减少膜污染，延长膜寿命．将优势苗与膜生物反应器结合，能够充分发挥生物处理与膜分离工艺的优势，促进膜生物反应器的推广应用．     

生物膜技术在脱氮除磷方面的应用研究

阐述了生物膜技术的工作原理与技术特点,介绍了序批式生物膜技术在污水生物处理中的研究与应用现状,探讨了序批式生物膜反应器在城市污水生物脱氮除磷中发展与应用。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to