内循环式A/O/IAT-IAT同步生物脱氮除磷工艺特性研究

报道了自主开发的内循环式A／O／IAT-IAT同步脱氮除磷工艺的运行特性．试验以模拟废水为处理对象,对该工艺在三种不同工况下的运行效果进行比较．试验结果显示,在进水COD、BOD5、NH4^＋-N、PO4^3--P浓度分别为629．7～821．6mg／L、360～580ms／L、36．9～59．8mg／L、6．0～7．6mg／L,总水力停留时间为20hr,污泥龄为3．5d,污泥回流比为200％的条件下,COD、BOD5、NH4^＋-N和PO4^3--P去除率分别为97％～99％、99％、89％～99％和89％～98％,出水水质达到了国家城镇污水处理厂污染物排放一级A标准（GB18918—2002）．在各项运行控制条件中,HRT和SRT是影响该工艺运行效果的主要因素．     

l，4—丁二醇装置副产物γ—丁内酯的分离回收

从1，4—丁二醇装置副产物中分离回收γ-丁内酯具有明显的经济效益。采用减压连续精馏的分离工艺，设置脱轻塔和产品塔对原料进行顺序分离。利用严格精馏计算法，经优化设计计算出两塔的工艺条件，在优化设计条件下，可以分离出纯度为99．6％的γ-丁内酯。降低分离温度，可以降低γ-丁内酯的热分解速度，有利于分离。     

Fenton试剂处理乳化含油废水

实验室研究了用Fenton试剂氧化处理三种表面活性剂（非离子OP，阳离子CTMAB，和阴离子SDS）乳化原油和柴油废水及用非离子型OP表面活性剂乳化机油废水．其COD含量为1273-2248mg／l，油含量为1825-3977mg／1．Fenton试剂氧化的最佳初始pH、终了pH、Fe^2＋用量、H2O2用量和氧化时间分别为2．5-4、10、80．4—120．6mg／l、2．12-21．2g／l（30％H2O2）和3．5h．处理后的乳化原油废水COD去除率、油去除率、色度（UV-254）和浊度（A450）去除率分别为94．8—98．0％、99．4-99．9％、95．1—97．9％和99．0-99．9％；处理后乳化柴油废水COD和油去除率分别为93．9-96．2％和99．6-99．7％；OP乳化剂乳化机油废水处理后COD和油去除率分别为98．2％和97．6％．所研究的乳化废水用Fenton试剂处理后均可达到国家一级排放标准．     

铜萃取剂M5640从硫酸镍溶液中分离铜的应用研究

研究了采用M5640-煤油-H2SO4萃取体系分离硫酸镍中Cu^2 的工艺，确定了从含有高浓度硫酸镍的溶液中萃取Cu^2 的最佳工艺条件以及负载有机相反萃工艺条件．结果表明，以M5640为萃取剂、硫酸溶液为反萃剂，经3级萃取、3级反萃后，可以从含有高浓度硫酸镍的溶液中分离出99．9％的Cu^2 ，Ni^2 的萃取少于0．5％．     

高纯2,4,6-三氯嘧啶的合成工艺研究

研究了医药和活性染料中间体2，4，6-三氯嘧啶的合成工艺．反应以巴比妥酸为原料。三氯氧磷为氯化剂，N，N-二乙基苯胺为催化剂．反应原料易得，操作简便，产品纯度大于99％，产率为85％．合成产品用红外光谱和核磁共振谱进行了鉴定。     

1-环丙基-6,7-二氟-8-甲氧基-1,4-二氢-4-氧代喹啉-3-羧酸乙酯的制备

合成1-环丙基-6，7-二氟-8-甲氧基-1，4-二氢-4-氧代喹啉-3-羧酸乙酯．以四氟邻苯二甲酸为起始原料，经水解、部分脱羧、甲基化、酸化得到中间体2，4，5-三氟-3-甲氧基苯甲酸．中间体再经酰氯化、缩合、脱羧、醚化、环丙胺置换，环合得本品．实验收率为37．7％，本法工艺简单，易操作．     

1-(4-苯氧基苯氧基)-2-丙醇的合成及分析

以4-苯氧基苯酚，环氧丙烷为原料合成1-（4-苯氧基苯氧基）-2-丙醇，考察了物料比、反应时间、反应温度等因素对其收率的影响，得到最佳工艺条件。规（4一苯氧基苯酚）：规（环氧丙烷）：规（氢氧化钾）=1：3．0：0．3，反应温度40℃，反应时间3．5h，1-（4-苯氧基苯氧基）-2-丙醇收率最高达93．7％。以液相色谱法，采用LiChrospher100 RP～18柱、甲醇＋水为流动相、紫外检测器、外标法对1-（4-苯氧基苯氧基）-2-丙醇进行了高效液相色谱分析研究。方法标准偏差0．20％，变异系数0．23％，回收率在99．57％～100．52％之间。     

膜-序批式生物反应器生活污水处理特性研究

采用中空纤维膜-序批式生物反应器处理实际生活污水，考察了污染物的去除效果及膜污染情况．结果表明：在不排泥条件下连续运行，系统表现出良好的污染物去除效果，COD、氨氮、浊度等平均去除率分别达到89．8％，99．3％和99．6％；膜强化去除作用显著，且出水水质稳定，出水水质优于生活杂用水水质标准；在实验期间没有对中空纤维膜组件进行清洗，膜污染发展速度缓慢，膜过滤性能稳定．     

生物滴滤塔处理甲醛和三苯混合气体的实验研究

对生物滴滤塔处理甲醛和三苯混合气体的影响因素及性能进行了研究,在室温、pH值为6-7的条件下，当进气流量为600L／h，表面液体速度为3．14-3．93m／h时，生物滴滤塔对低浓度甲醛、苯、甲苯和二甲苯的混合气体有很好的去除效果，其相应的去除率分别在99％、73％、91％、88％以上．生物滴滤塔中的微生物对去除甲醛起到了重要作用．通过富集实验，经单菌对比验证，有4株菌降解效果显著．经16SrDNA测序和生理生化鉴定，可基本确定菌株J1和B4为Pseudomonas sp．，菌株JB2为Bacillus sp．，菌株E5为Arthrobacter sp．     

酚硫酸法测定灵芝多糖的研究

目的：从灵芝中提取多糖，并测定其含量．方法：灵芝多糖的提取一般方法为醇析沉淀法，本实验为找出该方法的最佳工艺条件，结果表明：灵芝多糖提取的最佳工艺条件为：乙醇浓度85％，乙醇：料液为2：1，pH为6．5．结果：用酚-硫酸比色法测定多糖的含量，测得灵芝多糖含量6．55％，平均回收率99．05％，RSD=1．02％（n=3）．结论：该法操作简便，重现性好，实验结果令人满意．     

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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