Zn-粘土催化剂对染料废水的O3氧化降解性能的影响

对于生物难降解性有机染料废水,用矿物催化剂进行复合催化氧化获 得了比较理想 的实验处理效果。以粘土为载体加载金属锌氧化物制成的可重复使用的固体催化剂,对人工模拟的染料废水进行复合催化臭氧氧化实验,获得了满意的效果。该法进一步提高了臭氧的降解效果,降低了处理成本。     

铁(氢)氧化物矿物对有机污染物的光催化氧化作用

对水溶液中(氢)氧化铁的光催化氧化反应的发展与机理研究进行了总结,着重对近十年来应用针铁矿／过氧化氢进行光催化氧化环境中有机物的研究进展及其环境矿物学意义作了概述和探讨。采用天然生物矿化的纳米针铁矿／过氧化氢以偶氮染料甲基橙为光解模型物进行了光催化氧化的初步研究,结果表明铁细菌形成的针铁矿具有降解生物难降解的有机污染物的能力。在甲基橙溶液初始浓度为30mg／L,铁细菌矿化的针铁矿用量2．5g／L,反应体系H2O2的初始浓度97mmol／L,pH值为6．92,15W紫外灯照射2h后,甲基橙浓度可降低33％。     

超临界水氧化法在处理工业有机废水中的应用与展望

超临界水氧化(SCWO)技术是一项极具发展潜力的工业有机废水处理技术,特别针对传统处理工艺难以处理的高浓度、有毒、难降解有机废水优势明显.运用超临界水独特的物理性质与氧化机理,分析超临界水氧化过程在不同温度、停留时间、氧化剂当量及有无催化剂等条件下去污效果,找出不同废液适宜的处理条件.结合国内超临界水氧化技术在焦化、印染、造纸等有机废水处理研究现状,总结该法存在的主要问题和未来研究的主要方向.     

半导体多相光催化氧化技术在环境保护中的应用研究进展

简单介绍了半导体多相光催化氧化的原理及其在降解污染物和环境保护中的应用和一些新型反应装置, 提出了提高光催化剂催化活性的方法, 讨论了影响光催化氧化反应速率的因素和提高光催化氧化反应速率的方法, 同时对光催化氧化技术今后的研究方向和工作重点提出了一些设想      

氯代有机物的降解研究

对含氯类有机物的降解进行研究,提出,氯代烷烃的降解主要采用双金属体系法;氯代芳香烃的降解多采用光催化氧化法;对于氯代酚类则采用催化臭氧氧化法、超声波降解法等.     

膜生物反应器处理难降解废水的特性研究

膜生物反应器与生物接触氧化法处理难降解废水的对比研究表明,在相同的运行条件下,膜生物反应器比生物接触氧化法具有更稳定的出水水质,其平均出水COD_cr去除率达到88.41%,比接触氧化法提高了近30%;其平均色度去除率达到85.27%,相比接触氧化法,提高了近30%。通过出水分子量组成分析发现,膜出水以分子量介于3 000和10 000之间的物质为主,占总数的88.36%,接触氧化以分子量大于10 000的物质为主,占总物质的72.04%,介于3 000和10 000之间的仅占9.76%。     

KN系列难降解有机废水处理新药剂的研制及应用

KN系列污水处理剂对不同污水采用多孔、层状非金属矿经活化复配而成，不仅对难降解有机废水具有良好的处理效果，也可用于易生物降解废水，并且价格低，相关工艺具有占地少、投资省、运转费用低的特点。所产生的污泥脱水性能好，并可无害化最终处理，不产生二次污染。     

Fenton氧化膜-生物反应器出水中丙烯腈的实验研究

采用膜-生物反应器和Fenton氧化组合工艺对丙烯腈废水进行处理。从GC/MS测量结果来看,膜-生物反应器出水中主要物质为2,6双（二甲基-乙基）-4-酚、苯二甲酸和硝基苯二甲酸,均为生物难降解有机物,使出水不能达标。后续Fenton氧化工艺处理膜生物反应器出水,可以使COD含量等指标达到所要求的排放标准。经过膜-生物处理与Fenton法结合的优化工艺,COD去除率达到80%~88%,去除率达到98%,出水水质可达排放标准。Fenton氧化工艺的最佳工艺条件为：pH值为3.4,硫酸亚铁的投加量为700mg/L,双氧水的投加量为600mg/L。     

锰钾矿处理高浓度含酚废水研究

对人工合成锰钾矿氧化降解高浓度含酚废水的特性进行了研究。结果表明,体系酸度和矿物用量是影响废水处理效果的重要因素。加酸量为0.12 mol/L,矿物用量20 g/L,温度70℃,反应时间3 h时效果最佳,废水总酚含量由1269 mg/L降低至268 mg/L,同时CODCr与TOC去除率为31.2%和70.5%。经GC/MS测定,水中酚类物质为苯酚、甲基苯酚、二甲基苯酚,最佳条件下,酚类物质浓度已低至检测限以下,水中残余吲哚、长链烷烃、喹啉及其衍生物等难降解有机物。     

镍酞菁修饰镍铝水滑石的制备及光催化性能研究

通过共沉淀法将水溶性四羧基镍酞菁(Ni Pc)负载到镍-铝碳酸根水滑石(Ni Al-LDHs)上,制备负载型催化剂(Ni Pc/Ni Al-LDHs)。采用XRD、FT-IR、UV-Vis、TG-DTA和SEM等技术对酞菁衍生物和Ni Pc/Ni Al-LDHs的结构进行表征。结果表明Ni Pc没有改变Ni Al-LDHs的晶型结构和热稳定性能。在10 mg/L、25 m L的甲基橙溶液、p H值为3、H2O2用量50μL的条件下,Ni Pc/Ni Al-LDHs协同H2O2光催化氧化降解甲基橙3 h后,甲基橙剩余率为16.33%。溶液p H值在3~7范围内,Ni Pc/Ni Al-LDHs/H2O2都能有效光催化氧化降解甲基橙,且光催化氧化降解过程涉及到羟基自由基反应。     

Définition d'une limite multicritère ; stratigraphie du passage Campanien–Maastrichtien du site géologique de Tercis (Landes,SW France)Definition of a multi-criteria boundary; stratigraphy of the Campanian–Maastrichtian interval of the geological site at Tercis (Landes,SW France)

Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414.     

Inter-regional correlation of transgressions and regressions in the Cretaceous period

Well investigated platforms have been selected in each continent, and the history of Cretaceous transgressions and regressions there is concisely reviewed from the available evidence. The factual records have been summarized into a diagram and the timing of the events correlated between distant as well as adjoining areas.On a global scale, major transgressions were stepwise enlarged in space and time from the Neocomian, via Aptian-Albian, to the Late Cretaceous, and the post-Cretaceous regression was very remarkable. Minor cycles of transgression-regression were not always synchronous between different areas. Some of them were, however, nearly synchronous between the areas facing the same ocean.Tectono-eustasy may have been the main cause of the phenomena of transgression-regression, but certain kinds of other tectonic movements which affected even the so-called stable platforms were also responsible for the phenomena. The combined effects of various causes may have been unusual in the Cretaceous, since it was a period of global tectonic activity. The slowing down of this activity followed by readjustments may have been the cause of the global regression at the end of the Cretaceous.     

The lamprophyres of Afyon stratovolcano,western Anatolia,Turkey: description and genesis

The Afyon stratovolcano exhibits lamprophyric rocks, emplaced as hydrovolcanic products, aphanitic lava flows and dyke intrusions, during the final stages of volcanic activity. Most of the Afyon volcanics belong to the silica-saturated alkaline suite, as potassic trachyandesites and trachytes, while the products of the latest activity are lamproitic lamprophyres (jumillite, orendite, verite, fitztroyite) and alkaline lamprophyres (campto-sannaite, sannaite, hyalo-monchiquite, analcime–monchiquite). Afyon lamprophyres exhibit LILE and Zr enrichments, related to mantle metasomatism.     

METAMORPHIC PETROLOGY

正20140751 Guo Xincheng(Geological Party,BGMRED of Xinjiang,Changji 831100,China);Zheng Yuzhuang Determination and Geological Significance of the Mesoarchean Craton in Western Kunlun Mountains,Xinjiang,China(Geological Review,ISSN0371-5736,CN11-1952/P,59(3),2013,p.401-412,8     

GEOCHEMICAL EXPLORATION

正20141058 Chen Ling(Key Laboratory of Mathematical Geology of Sichuan Province,Chengdu University of Technology,Chengdu610059,China);Guo Ke Study of Geochemical Ore-Forming Anomaly Identification Based on the Theory of Blind Source Separation(Geosci-     

SEISMIC GEOLOGY

正20141334 Chen Kun(Institute of Geophysics,China Earthquake Administration,Beijing100081,China);Yu Yanxiang Shakemap of Peak Ground Acceleration with Bias Correction for the Lushan,Sichuan Earthquake on April20,2013(Seismology and Geology,ISSN0253-4967,CN11-2192/P,35(3),2013,p.627-633,2 illus.,1 table,9 refs.)Key words:great earthquakes,Sichuan Province     

HISTORICAL GEOLOGY & STRATIGRAPHY

正20141624 Cai Xiongfei(Key Laboratory of Geobiology and Environmental Geology,Ministry of Education,China University of Geosciences,Wuhan 430074,China);Yang Jie A Restudy of the Upper Sinian Zhengmuguan and Tuerkeng Formations in the Helan Mountains(Journal of Stratigraphy,ISSN0253-4959CN32-1187/P,37(3),2013,p.377-386,5 illus.,2 tables,10 refs.)     

PALEONTOLOGY

正20142263Lü Shaojun(Geological Survey of Jiangxi Province,Nanchang 330030,China)Early-Middle Permian Biostratigraphical Characteristics in Qiangduo Area,Tibet(Resources SurveyEnvironment,ISSN1671-4814,CN32-1640/N,34(4),2013,p.221-227,2illus.,2tables,22refs.)Key words:biostratigraphy,Lower Permian,Middle Permian,Tibet     

MATHEMATICAL GEOLOGY

正20142560Hu Hongxia(Regional Geological and Mineral Resources Survey of Jilin Province,Changchun 130022,China);Dai Lixia Application of GIS Map Projection Transformation in Geological Work(Jilin Geology,ISSN1001-2427,CN22-1099/P,32(4),2013,p.160-163,4illus.,2refs.)     

GEOCHEMISTRY

正20140692 Duo Tianhui(No.402 Geological Team,Exploration of Geology and Mineral Resources of Sichuan Authority,Chengdu611730,China);Wang Yongli Computer Simulation of Neptunium Existing Forms in the Groundwater(Computing Techniques for Geophysical and Geochemical Exploration,ISSN1001-1749,CN51-1242/P,35(3),