一种高效的强酸性镀锡废液回收处理新工艺(英文)

阐述了一种未见报道的能对强酸性镀锡废液进行大规模集中回收处理的新工艺。这套工艺是在对废水进行预热的条件下,利用硫酸钠和聚丙烯酰胺作为聚沉剂和絮凝剂,便可在短时间内对大量的强酸性废液进行高效处理,最后经过压滤便可得含锡量高的锡泥。     

钻井废液无害化处理技术的研究

通过生物处理技术对钻井废液进行室内试验,研究了钻井废液中有机污染物生物降解的可行性、处理钻井废液的最佳条件和处理钻井废液的工艺运行参数,为进一步试验打下了基础。     

染黑废液的处理研究

染黑工序所使用的染料BLACK使用一段时间后,其活性力下降,不能继续使用,如果作为废液直接排掉,会严重污染环境,给自然界和人类带来危害。采用"强脱色剂-絮凝沉淀"两步法来处理染黑废液,通过加入强除黑剂,进行初步脱色后,再加入硫酸亚铁沉淀剂和絮凝剂进行沉淀,最终实现脱色。研究了用"强脱色剂-絮凝沉淀"两步法对染黑废液进行处理的最佳工艺条件。结果表明:脱色率达98%,,COD去除率为96%,,达到了国家排放标准。其脱色效果明显,是值得推广的一项实用技术。     

化学实验室常见无机废液净化处理方法研究

目前化学实验中产生的废液,不经处理便直接排入下水道的现象较为普遍,对水质和环境造成严重污染．首先将无机废液分成3类,一类含酸、碱废液;二类含有害重金属废液;三类含有害的阴离子废液．然后研究了这3类废液简单有效的处理方法,对废液和处理后的水质进行了分析．处理后的水质达到国家污水排放标准．     

移动式放射性废液处理工艺研究

随着核工业的发展,产生了大量的放射性废液。放射性废液必须经过处理达标后才能排放进入环境。在大型核设施运行单位一般均设置有固定式工艺的放射性废液处理装置。一些核技术应用单位产生的少量零星废液,以及固定式装置不便处理和无法处理的废液、核应急、核设施退役等领域,移动式放射性废液处理装置就显得尤为重要。该文通过对现有的国内外移动式放射性废液处理工艺进行研究,以期为移动式放射性废液的处理工艺的研究和开发提供借鉴和参考。     

电解法处理不锈钢酸洗废液机理的研究

通过对常用于清洗不锈钢氧化皮的含有氢氟酸酸洗废液进行电解,探讨了在酸性废液中金属电沉积的条件及阳离子表面活性剂对析氢超电势的影响,初步找到了电解法处理酸洗废液再生利用的方法;这对解决国内外至今尚未解决的排放污染问题有较大的实用价值。     

臭氧氧化法处理糖蜜酒精废液的工艺条件探讨

进行了影响臭氧氧化法处理糖蜜酒精废液效果的多因素正交试验,探讨了pH值、处理气液比、处理时间和反应温度对CODcr和色度去除率的影响,得到了臭氧氧化法处理糖蜜酒精废液的最佳工艺条件组合:⑴废液的初始pH值为11.50;⑵处理气液比为0.270 mg.L-1;⑶处理时间为30 m in;⑷反应温度为35℃。在此工艺条件下,废液的CODcr去除率为26.4%,色度去除率达92.8%,脱色效果好。废液的初始pH值对CODcr去除率影响显著,对色度去除率影响极显著。     

浅谈印制线路板生产中的废水处理及其在清洁生产中的应用

分析了以印制线路板在生产过程中产生的工业废水的来源及其水质特点,在此基础上,以微蚀刻废液再生回用技术和废退锡水回收技术为例,从技术上阐述了将处理这些废水的工艺应用于清洁生产,实现废水处理与清洁生产相融合的方法,及其在工业中推广的价值和意义。     

含铜蚀刻废液的综合利用：中和沉淀后母液的处理工艺探讨

酸性蚀刻废液与碱性蚀刻废液混合沉淀铜后，母液中含有大量的氯化铵，少量的铜离子．用水合肼还原除去铜离子后，回收所得氯化铵溶液可直接用于蚀刻液的生产．通过对处理工艺探讨，找到了处理母液的最佳方法．     

电解法处理不锈钢酸洗废液

目前 ,国内外处理含氢氟酸不锈钢酸洗废液的方法是化学法 ,即使 F- 以某种盐类析出 ,然后采用酸碱中和的方法将废液直接排放 .国内大中小企业几乎均采用此方法 ,显然这种处理方法对环境会造成严重污染 .本项目借鉴电解原理 ,对废液进行电解处理 ,通过筛选合适的电极及向废液中添加活性剂 ,最终达到在酸性废液中只有金属离子在阴极上析出 ,而不使 H+还原析出 .这样 ,若进一步向处理后的废液中补加酸 ,清洗液将可继续利用 ,解决了排放污染问题 .因为 F-氧化析出电位很高 ,故电解过程中不会有 F- 的氧化析出消耗问题 ,其始终存在于废液中 .不…     

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.     

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。     

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.     

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.     

The Analects and the Moment in Peking——The influence of a Confucian education system on the personality formation,the way of thinking and the fate of the main characters

0.Preface China has long been boasting of its colorful and immense culture which comprises of Taoism,Confucianism and Buddhism.The interwoven influence among the religions on Chinese way of thinking,on the nation＇s behavior in their social life throughout the long history is beyond list.