硅藻土复合生物反应器处理生活污水

利用硅藻土复合生物反应器处理城市污水．以复配精选硅藻土作为微生物的载体，采用连续流小试实验，考察水力停留时间对硅藻土复合生物反应器处理城市污水的效果，除总氮外，其他出水指标满足我国《城镇污水处理厂污染物排放标准（GB18918--2002）》一级A标准．     

深海锰结核作生物固定化载体处理染料废水

用深海锰结核作生物固定化载体,在气升式反应器内进行了对比实验.结果表明:结核作固定化载体处理废水,可有效地降低废水中的化学耗氧量(COD)、生物耗氧量(BOD)、固体悬浮物(SS)、色度等,并可打开难降解的苯环.固定化微生物脱色机理是载体吸附和细菌降解双重作用.处理后的污水可作为J13菌的有效营养和碳源,作为微生物浸出深海锰结核中有价金属的培养基.固定化微生物在染料废水处理中有实用价值.     

AHLs类信号分子对IFFAS工艺影响研究

通过在传统载体基料(聚乙烯)中添加聚季铵盐-10改善载体的亲水性和亲电性,以促进微生物在载体表面的生长,并通过向反应器中添加N-酰基高丝氨酸内酯(AHLs)类信号分子改良生物膜特性以及微生物结构.实验结果表明,相比于传统载体,改性载体表面生物膜增长速率较快,生物膜生长稳定后载体表面生物膜量较高,且在AHLs作用下改性载体表面生物膜含有较多的蛋白质和多糖.实验运行阶段,投加载体反应器的COD去除效果优于活性污泥反应器;投加改性载体和AHLs的反应器的氨氮和总氮去除效果最优,去除率分别能够达到94.8%和65.3%,且各运行阶段出水水质明显优于其他反应器.微生物群落分析表明,AHLs能够明显提高反应器中与群体感应密切相关的反硝化菌Zoogloea的相对丰度.     

环流反应器中厌氧好氧耦合生物降解含酚废水

研究厌氧好氧耦合生物体系对含酚废水的处理效果.在反应器Ⅰ中投加体积比为3%的多孔聚亚氨酯载体,反应器Ⅱ不投加载体,利用2个反应器进行对比实验.经过26 d的驯化,反应器Ⅰ可将模拟含酚废水的化学需氧量质量浓度由4 g/L降至100 mg/L, 最快降解速率达到720 mg/(L·h), 污泥体积指数的值稳定在54～110 mL/g间,各项指标均优于反应器Ⅱ;扫描电镜观察发现,附着在载体上的微生物种群与好氧体系不同.体系对含酚废水的处理能力强,降解速度快,抗冲击能力强.     

底物降解速率常数的意义及应用

为了综合评价和比较废水处理中不同生物反应器的性能，根据Eckenfelder一级生化反应动力学模型，推导出单位底物降解速率常数K’2的表达式，并建议用K’2作为综合评价生物反应器性能的指标。对废水处理中常用生物反应器的K’2值进行了计算及分析。结果表明，K’2值达到最大时，反应器运行性能最佳。认为该方法与传统单项评价指标相比更具综合性，更为准确。     

沸石载体恢复受饥饿影响厌氧氨氧化菌的性能研究

利用沸石良好的吸氨能力和微生物载体功能,将受饥饿影响的厌氧氨氧化菌在含沸石的反应器内进行活性恢复,研究沸石对长期饥饿影响下厌氧氨氧化菌恢复过程中菌群活性及结构的影响.结果表明,经过82天的运行,沸石反应器和对照反应器(无沸石添加)内厌氧氨氧化菌均获得恢复.沸石反应器的脱氮效率从第59天开始与对照反应器拉开差距,运行第8...     

山东省各市地工业系统相对效率的评价

选择３个投入指标和３个产出指标，采用ＤＥＡ模型对山东省１６个市地的工业系统相对效率进行了评价，根据评价结果提出了提高山东省各市地工业效率的建议。     

硫化氢间接电解制氢电极材料性能研究

研究了硫化氢间接电解制氢过程中电极材料的性能，考察了不同阴极材料上镀铂厚度、镀铂方式对电极电化学性能的影响，并对阳极材料进行了筛选。实验结果表明，石墨可以作为电解反应器的阳极材料；阴极材料选择石墨载体上离子溅射镀铂，铂层厚度为0．01μm时具有较好的综合性能，但考虑电解反应器的能耗及镀铂成本，阴极可采用无镀层的石墨材料。     

介质阻挡放电协同铜氧化物催化剂脱除NOx反应研究

研究了以煤基活性炭为载体的铜氧化物催化剂在阻挡介质放电反应器中对NOx脱除效率的影响规律,以及催化剂在反应前后的变化和主要产物。研究结果表明,以煤基活性炭为载体的铜氧化物催化剂协同阻挡介质放电反应器,可使NO有效氧化为NO2,对NOx也有明显的脱除效果,使NO2进一步氧化为NO3-,阻止了等离子体状态下活性氧自由基自身结合生成氧气的循环反应;该催化剂对氮氧化物具有吸附和储存功能,提高了反应物浓度和反应速率。随着介质阻挡放电反应器输入能量的增加,氮氧化物脱除效率增大,该能量可有效产生等离子体,提高活性粒子和氧自由基浓度,同时提高催化剂的吸附和催化活性。     

兰州市2001年食品微生物指标检测结果分析

为了解食品微生物污染情况，采用相关国家标准检测和评价兰州市2001年食品微生物指标合格率为67.96%，并证明食品类型、季节变化、包装差异等因素对食品微生物指标合格率均产生影响。     

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.     

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.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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