染料脱色菌群的初筛及脱色条件的研究

从印染厂池的污泥中筛选到对染料有脱色作用的脱色菌群，研究了脱菌群在不同温度、不同Ｐ不培养时间等不同培养条件下对染料脱色的情况。试验结果表明，脱色菌对外界条件无严格要求，适应范围广，但在ＰＨ偏碱，温度为３０℃，培养时间为７２ｈ时可达最佳脱色效果，脱色率在９０％以上。     

固定化混合脱色菌处理印染废水

研究以活性炭、纤维挂条为载体的固定脱色菌处理废水的工艺条件,结果表明,两者处理效果较好。活性炭为固定载体的适宜流量小于６．７ｍＬ．ｍｉｎ＾－１,处理３８ｈ,只需对载体上的脱色菌采用循环新鲜营养液,使其繁殖再生,又可继续可处理废水约１０４ｈ,脱色率可达８５％。此方法比无菌体等量活性炭处理废水的有效寿命长,以纤维挂条为载体固定脱色菌,以相同接种量无载体的游离菌液处理废水作对比,经一定时间培养,处理相同     

孔雀石绿脱色菌的分离鉴定及降解特性研究

文章从印染厂污水处理系统的活性污泥中筛选分离3株对孔雀石绿有脱色能力的菌株,编号分别为MG-2、MG-6和MG-7.根据其形态学特征以及16S rDNA序列分析,初步鉴定为肠杆菌属(Enterobactersp.)和埃希氏菌属(Escherichia sp.).3株菌的最适脱色条件为:pH=7.0,温度为30℃,厌氧和兼氧.在最适脱色条件下,3株菌对质量浓度为60 mg/L的孔雀石绿脱色率都在94％以上,其中菌株MG-2所需脱色时间最短,菌株MG-6次之,菌株MG-7脱色时间最长;3株菌对盐度有一定的耐适性,属于耐盐菌;3株菌的脱色都是因为胞外酶的作用.     

三株染料脱色优势菌的分离与鉴定

从温州印染厂废水池污泥中分离出三株染料脱色优势菌,其中Ａ１对活性桃红ＫＤ－８Ｂ脱色率为８７．５％,Ａ２对活性桃红ＫＤ－８Ｂ脱色率为９０．２％,Ａ３对弱酸猩红ＦＧ的脱色率为８６．４％,并根据各菌株的个体、群体形态和生理化实验对细菌进行鉴定,三株细菌分别定名为：Ａ１为睾丸酮假单胞菌,Ａ２为嗜麦芽黄单胞菌,Ａ３为恶臭假单胞菌。     

球形红杆菌对多种染料脱色的研究

球形红杆菌经过驯化后，分别对１１种染料进行了脱色试验，试验结果表明：此菌对活性染料具有较好的脱色作用，脱色率均达８０％以上。测试了测试、ＰＨ值等因素对脱色的影响。     

霉菌菌丝球WY对酸性棕染料PR的脱色研究

 研究了霉菌菌丝球WY对酸性棕染料PR的脱色性能及对实际印染废水的脱色作用。WY的脱色温度范围较宽,在25~50 ℃范围内,其脱色率均在92％以上。菌球WY的最佳脱色温度为45℃,在此温度时,PR的脱色率达97.92％。菌球WY的最佳脱色pH值为5.0、最佳摇速为90 r/min,PR的相应脱色率分别达93.73％和92.45%。染料浓度在100~300mg/L范围内,WY对PR具有明显的去除活性,300 mg/L时,其去除率达88.71%。菌球WY对染料PR的脱色需要一定的营养。WY对PR脱色所需碳源和氮源范围都较宽。废牛奶可作为WY的良好营养,在省去碳源和氮源的培养基中按2%和10%加入废牛奶制备的菌丝球,对PR的脱色率分别达75.94％和98.06％。WY对实际印染废水有较好的脱色作用,脱色率为86.24%。甲醇对PR具有很好的解吸效果,其解吸率达97.17%。解吸后的菌球对染料仍有很好的脱色作用,其脱色率达93.78%,菌球可重复利用。     

茶籽油吸附脱色工艺研究

对茶籽油的脱色过程中,吸附剂、吸附剂用量、脱色温度、脱色时间和搅拌速度等因素影响茶籽油脱色效果的问题进行了研究,从中得出了茶籽油脱色的较佳条件．即：活性白土用量为2．5％～3．O％,脱色温度为110℃,脱色时间为25min．     

梁料脱色菌—无花果曲霉（Aspergillus ficuum）的紫外诱变育种

染料脱色菌无花果曲霉（Aspergillus ficuum）经紫外线诱变后，筛选出变株P11在33℃、120r／min振荡培养条件下，3d内以对染料直接耐酸大红4BS的脱色率为88．54％比出发菌株提高了13％，经斜面传代10次，脱色能力保持稳定。     

餐饮业废油脂脱色及皂化工艺

以餐饮业废油脂为原料，研究探讨了废油脂脱色和皂化生产油脂皂基的最佳工艺路线和参数，为废油脂的综合利用提供一条新途径．最佳脱色条件是：活性白土用量5％；脱色温度控制在80-120℃；脱色时间25min．废油脂脱色后皂化的最佳工艺条件：皂化时间4h，皂化温度100℃，碱液用量m(NaOH)：m(废油脂)=1：2，皂化用NaOH碱液质量分数为30％．     

自腐菌Pleurotus ostreatus漆酶对蒽醌染料SN4R脱色研究

利用白腐菌Pleurotus ostreatus324粗漆酶和纯漆酶进行蒽醌染料SN4R的脱色研究．粗漆酶可使蒽醌染料SN4R脱色，最适脱色pH、温度和漆酶酶活分别为4．0、40℃和30IU／mL,12h染料脱色率为55％,纯漆酶不能使SN4R脱色，但小分子介体物质可介导纯漆酶对染料SN4R的氧化脱色．在最适条件下4h染料脱色率可达80．6％．粗漆酶添加适当浓度的介体物质，可使染料完全脱色。因此，小分子还原介体物质的存在有助于染料废水的降解和脱色。     

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