焦化废水的生物滤池A/O 厌氧生物强化处理研究

采用生物滤池A/O工艺处理有机废水,着重考察有机物厌氧段的生物强化处理效果.搭建相同的反应器A和B,在同等运行条件下,分别投入微生物菌剂P115和B350.结果表明,反应器A厌氧段对中低浓度易降解有机物去除效果显著,去除效率为85％,较反应器B的去除效率高20％.加入焦化废水后,两系统厌氧段COD的去除效率均降低至40％左右.通过进出水的紫外可见光吸收光谱、有机物分子量以及GC-MS分析可知,经过厌氧处理后,出水的紫外分光吸收值降低,有机物分子量减小,多数多环芳烃及少量杂环类化合物降解,难降解有机物在厌氧段能够得到较好降解.通过比较,反应器A厌氧段微生物对有机物去除效果更佳,从而揭示了微生物菌剂P115对于厌氧环境下的菌群结构具有显著改善作用.     

屠宰废水预处理后的SBR工艺处理工程

于2006年7～10月,在广西贵港南山食品有限公司设计屠宰废水预处理后的SBR工艺处理工程.处理工程用三道隔网和隔油沉渣池预先去除毛皮等固体杂物以及油脂等细小悬浮物,然后经调节池进入SBR工艺处理废水.预处理能够容易地去除废水中的油脂,COD、BOD5、SS的最高去除率达47.0%,48.3%,62.0%.工程处理废水的最佳曝气时间7h,COD、BOD5、NH3-N去除率分别是95.3%,97.5%,97.3%,出水水质达到国家一级排放标准.工程处理屠宰废水的工艺流程简单,操作运行稳定、投资少,对水量和水质的变化有较强的抗冲击能力,特别适宜废水排放量在500m3/d以下的小型屠宰厂推广应用.     

厌氧水解-ICEAS工艺处理高速公路服务区高浓度生活污水

针对某高速公路沿线服务区生活污水水质特点，采用厌氧水解-ICEAS(Intermittent Cycle Extended Aeration System工艺进行处理，可有效去除废水中有机物及氛磷，出水各项指标达到GB8978-1996一级标准。该工艺具有运行稳定，去除率高，运行成本低的特点。     

二级厌氧—SBR工艺处理酱油生产废水

酱油工业废水组分复杂，常含有多种有机物质，色度深，难于降解，且水质水量波动较大。文章介绍了采用二级套氧－SBR工艺，先在厌氧反应池内加入弹性立体填料，后接SBR反映器处理酱油生产废水，以及废水处理的设计特点、工程特点和处理效果。运行结果表明，吨水投资费用为0．29万元，吨水运行成本0．4元，且处理效果较稳定，出水可以满足国家排放标准。     

水解-UNITANK工艺处理制药废水工序的优化

将厌氧水解和UNITANK反应器结合组成厌氧水解-UNITANK工艺用于制药有机废水的处理.厌氧水解工序主要完成对有机物的水解,达到初步降解有机物的目的.水解出水进UNITANK反应器,进一步降解有机物.厌氧水解-UNITANK工艺处理后出水经曝气生物滤池(BAF)深度处理,使废水得到净化.本试验从温度、停留时间等方面初步探索了厌氧水解反应器及UNITANK反应器的最佳工艺参数与条件.试验得出,厌氧水解适宜温度为25~30℃,最佳停留时间为12 h;UNITANK反应器的最佳温度为20℃,最佳停留时间为90 h.     

高氨氮猪场废水的亚硝酸型脱氮研究

猪场废水脱氮处理前一般要经过厌氧消化处理，完全厌氧消化能去除废水中大部分有机物，但这同时降低了废水中的COD/NH4^ -N(1-3)，根据厌氧消化四阶段理论，控制厌氧消化到水解或产乙酸阶段，使废水中的COD/NH4^ -N维持在较高的水平(7-10)，为后续脱氮处理创造条件，本实验对比分析了运用缺氧/好氧SBR工艺处理这两种COD/NH4^ -N不同的废水的脱氮效果，实验结果表明：两的脱氮过程都是通过短程硝化反硝化实现的，反应器中的NH4^ -N浓度和pH值是控制亚硝酸型硝化的重要因素，经过部分厌氧消化的废水由于保持了较高的COD/NH4^ -N脱氮效果明显好于完全厌氧消化废水，NH4 -N去除率达到98％以上，但出水反硝化不完全，投加乙酸钠后出水NOx^--N减少到10-20mg/L，投加量以275mg/L为宜。     

含铬重金属废水处理的试验研究

采用铁屑固定床反应器去除工业废水中的铬．废水进入反应器后,通过铁屑固定床反应器的电化学反应的氧化还原、铁屑对絮体的电附集和对反应的催化作用、以及电池反应产物的混凝、新生絮体的吸附和床层的吸附过滤等综合效应,使重金属铬得以从废水中除去．试验结果表明,去除铬废水的最佳工艺条件为：pH=6．0～6．5,HRT=7h,采用连续曝气,曝气量为0．2L／min;铁屑固定床处理含铬废水运行稳定,去除率高,出水可以达到国家排放标准．     

MBR-RO组合工艺在印染废水回用的应用

将膜生物反应器（MBR）与反渗透（RO）工艺相结合，对印染废水二沉池出水进行深度处理，利用MBR进一步去除有机污染物，利用RO脱盐、脱色。运行结果表明，出水水质可满足生产工艺回用水要求。     

含铅重金属废水处理的试验研究

采用铁屑固定床反应器去除工业废水中的铅。废水进入反应器后，通过铁屑固定床反应器的电化学反应的氧化还原，铁屑对絮体的电附集和对反应的催化作用，以及电池反应产物的混凝，新生絮体的吸附和床层的吸附过滤等作用的综合效应使重金属得以从废水中除去。试验结果表明，去除铅废水的最佳工艺条件为：pH=6．0-7．0，HRT=5h，采用连续曝气，曝气量为0．2L/min；用铁屑固定床处理含铅废水运行稳定，去除率高，出水可以达到国家排放标准。     

SBR工艺在生猪屠宰行业废水处理中的应用

SBR工艺具有工艺简单、构建物少、投资省、运行维护简便的特点,可以有效处理难生化降解的高浓度有机物,非常适合废水水量大、水质变化波动大的情况,对生猪屠宰行业废水治理具有可行性和现实性意义。     

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.     

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.     

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.     

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.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.