利用微生物快速挂膜技术治理糖果废水的研究

利用微生物快速挂膜技术对糖果废水治理进行研究,结果表明：该技术对废水中的ＣＯＤＣｒ及ＢＯＤ５的去除有显著的效果。当废水的ｐＨ值为６￣８、水温为２５￣３５℃、ＣＯＤＣｒ及ＢＯＤ５分别在３０００￣９０００ｍｇ／Ｌ和１０００￣３０００ｍｇ／Ｌ时,ＣＯＤＣｒ及ＢＯＤ５的去除率分别大于９２％和９９％,从而为糖果废水治理达标排放奠定了基础。     

利用AB技术处理高浓度石油化工废水的研究

本文利用ＡＢ法废水生物处理技术进行治理高浓度石油化工废水的试验研究，通过ＡＢ法和普通活性污泥法处理高浓度石油化工废水对比性试验，系统地考察了两种方法的进水负荷、耐冲击负荷、活性污泥性状和处理效率等指标。研究结果表明：ＡＢ法在进水ＣＯＤ为１６００ｍｇ／Ｌ，ＢＯＤ５为８００ｍｇ／Ｌ，苯酚浓度为６００ｍｇ／Ｌ，总容积负荷为１２ｋｇＣＯＤ／ｍ＾３ｄａｙ的条件下，ＣＯＤ去除率为９６．５％，ＢＯＤ５去除率达９     

光合细菌处理高浓度制革废水的研究

该文提出采用三级内装软性纤维填料的生物接触氧化槽连续处理工艺，利用光合细菌对制革废水中的高浓度有机废水进行处理。通过试验，确定的工艺条件为进水ＣＯＤ浓度８０００ｋｇ／Ｌ左左，接种活性污泥进行２４ｈ可溶化处理，白天自然为光照、夜间人工光照或黑暗，间歇曝气造成瘘性好氧条件（ＤＯ０．５－２０ｍｇ／Ｌ），ＰＳＢ处理时间为７２ｈ，连续处理小试结果ＣＯＤ和Ｓ＾２－的平均去除率分别为９０．４％和９８．０％，ＢＯ     

草浆蒸煮废液处理新工艺的研究

本研究采用酸析木质素、电化学法及生物处理相结合的草浆蒸煮废液处理新工艺。废液ｐＨ３．０时，大部分木质素酸析沉降，ＣＯＤＣｒ去除率５２．９％。酸析木质素后的废液采用铁作牺牲阳极，石墨作阴极的电化学处理法，废液中Ｓ２－的去除率达８２．６％，Ｆｅ３＋浓度达３１．６ｍｇＬ－１。后续处理采用活性污泥法，利用废液中Ｆｅ３＋对生物反应过程的特殊刺激作用和絮凝作用，强化生物处理，出水水质：ＣＯＤｃｒ２９１ｍｇ·Ｌ－１，ＢＯＤ２９４ｍｇ·Ｌ－１，ＳＳ２３ｍｇ·Ｌ－１。     

厌氧一微氧生物法处理味精生产废水的研究

采用热絮凝、汽提等方法对味精废水进行预处理,ＣＯＤ、ＮＨ２－Ｎ和ＳＯ２-4分别去除５０％、８０％和６０％以上．考察了ＵＡＳＢ反应器与ＣＳＴＲ光合反应器厌氧－微氧串联系统治理味精废水效果,在进料ＣＯＤ浓度为２５．６ｇ／Ｌ条件下,其ＣＯＤ处理能力达３．９ｋｇ／ｄｍ３,ＣＯＤ去除率达９７％．     

厌氧一微氧生物法处理味精生产废水的研究

采用热絮凝、汽提等方法对味精废水进行预处理,ＣＯＤ、ＮＨ２－Ｎ和ＳＯ２-4分别去除５０％、８０％和６０％以上．考察了ＵＡＳＢ反应器与ＣＳＴＲ光合反应器厌氧－微氧串联系统治理味精废水效果,在进料ＣＯＤ浓度为２５．６ｇ／Ｌ条件下,其ＣＯＤ处理能力达３．９ｋｇ／ｄｍ３,ＣＯＤ去除率达９７％．     

抗坏血酸在钼蓝法测定微量SiO2中的应用

研究了以抗坏血酸为还原剂，用光度法测定碳化硅超细粉中微量ＳｉＯ２的方法，结果表明，最大吸收波长为８００ｎｍ，表观摩尔吸光系数为２．５０＊１０＾４Ｌ／（ｍｏｌ．ｃｍ），线性范围为０．０５－０．０７ｍｇ／Ｌ，平均回收率为９９．３２％，ＲＳＤ为１．６７％，该法适用于碳化硅超细粉中微量ＳｉＯ２的测定。     

光合细菌降解3种有机废水的试验研究

选用从有机废水中分离出的７株光合细菌菌株，并用于处理豆制品、淀粉、肉制品废水。研究试验表明：①经对ＣＯＤ＿（Ｃｒ）＝５２８００ｍｇ／Ｌ的豆制品废水进行１４４ｈ的处理，去除率达９２．７％；②经对ＣＯＤ＿（Ｃｒ）＝３８６４ｍｇ／Ｌ的淀粉废水进行７２ｈ处理，去除率达９９．５％；③经对ＣＯＤ＿（Ｃｒ）＝５０ｌ０ｍｇ／Ｌ的肉制品废水进行７２ｈ处理，去除率达９３％。另通过光合细菌菌株对不同浓度不同性质的废水处理比较、单菌株与混合菌株的比较；时间、ｐＨ值、接种量等因素对处理的影响比较，均得到了今人满意的处理试验结果。     

CaCl2溶液对小麦苗超氧物歧化酶的影响

ＣａＣｌ２溶液能提高小麦苗的ＳＯＤ活性，尤其以２０ｍｇ／Ｌ、５０ｍｇ／Ｌ溶液最为有效。最佳处理次数与所用浓度有关，较低浓度溶液（２０ｍｇ／Ｌ）处理５次，较高浓度溶液（５０ｍｇ／Ｌ、１００ｍｇ／Ｌ）处理１次。浇根和喷叶一样也能提高ＳＯＤ活性。ＣａＣｌ２溶液喷洒麦苗使ＳＯＤ同工酶出现新的谱带。     

RP—HPLC法测定葛根芩连胶囊中盐酸小檗碱的含量

用ＲＰ－ＨＰＬＣ法测定葛根芩连胶囊中盐酸小檗碱的含量。采用Ｓｈｉｍａｄｚｕ ＶＰ－ＯＤＳ柱，乙腈－０．０６ｍｏｌ／Ｌ ＫＨ２ＰＯ４－ＳＤＳ（２５０：３００：３．３ｇ）为流动相，检测波长３４７ｎｍ。方法准确可靠，快捷方便，回收率为９９．６０％，ＲＳＤ为１．０６％。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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