高放废物处置场断裂带稳定性遥感图象解译   总被引：1，自引：0，他引：1  

刘林清  余运祥 《华东地质学院学报》1994,17(3):242-248

  相似文献   

牦牛坪稀土矿床黑色土状风化物中富Eu、Y次生稀土的迁移富集及其经济价值   总被引：2，自引：0，他引：2  

李小渝 《四川地质学报》1994,(4)

耗牛坪稀土矿床之氧化带，广泛分布泥化率为１４．３３％─２４．６０％的．黑色土状风化物，其次生ＲＥＯ含量在２．０６％─６．６７％；Ｅｕ＿２Ｏ＿３和Ｙ＿２Ｏ＿３的配分为０．４３％─０．６３％和１．１２％─５．１８％，是矿石、工业矿物氟碳铈矿的数倍到数十倍。次生稀土是在弱碱性介质条件下发生分馏而富集中重稀土的，黑色土状风化物中的Ｍｎ－Ｆｅ非晶质体是富Ｅｕ、Ｙ等次生稀土富集体，是选矿矿泥的主要部分，如能综合开发利用将产生巨大的经济和社会效益。  相似文献   

Solid Waste Management in Ohio*     

Henry Moon 《The Professional geographer》1994,46(2):191-198

State environmental protection agencies are being forced to assume more responsibility for solid waste management. Ohio took the lead in mandating the state control of waste by implementing a statewide, integrated solid waste management plan. This paper discusses the shift in management responsibility and key factors affecting variations in the amounts of waste managed by Ohio's 48 solid waste management districts. Accessibility, population characteristics, location, and open landfill availability are factors that influence managed volumes of solid waste.  相似文献   

固体废弃物遥感微机信息系统的建立及其应用研究     

王毅  徐云川  彭万寿  刘晖  兰燕 《遥感学报》1993,(1)

本文以沈阳市航空遥感图像解译出的固体废弃物堆放及具周围环境信息为基础数据,在IBM PC/XT微机上建立了固废遥感微机信息系统(MSWRSIS)。该系统可以对市区范围内的固废堆放情况进行高效准确地查询检索和综合统计。为固体废弃物的系统化微机化管理奠定了基础。该系统利用评分分级系统法对市区内现存的固体废弃物进行环境影响评价,并设计了程序。根据评价结果,可以选择较合理的固废堆放场地,并可提出优先管理的固废渣堆。  相似文献   

超高压变质作用：固体地球科学领域的新挑战   总被引：2，自引：0，他引：2  

从柏林  王清晨 《地球物理学进展》1994,9(4):30-39

本文简述了国际上超高压变质岩研究领域中十年来的主要进展。含柯石英变沉积岩的发现暗示了上地壳物质可被迅速带至地下９０ｋｍ或更深处经受超高压变质作用，并在八千万年中很快折返出露地表。这一研究在实验岩石学、造岩矿物学、同位素年代学和大陆造山带的地球动力学等四个方面给固体地球科学领域带来了一系列重大突破。预计在今后五至十年内，这一研究将保持其热点地位，并围绕超高压变质作用过程和超高压变质岩折返的动力学过程展开工作。  相似文献   

Treatment of uncertainties in the performance assessment of geologic high-level radioactive waste repositories     

Evaristo J. Bonano  Robert M. Cranwell 《Mathematical Geology》1988,20(5):543-565

Federal regulations governing the disposal of high-level radioactive waste in deep, geologic repositories require an assessment of performance over thousands of years. Because of the long regulatory period involved and the complex nature of the events and processes of interest, prediction of the performance of the disposal system will inevitably include uncertainties. These uncertainties come from a variety of sources, and some are quantifiable and others are not. This paper discusses these uncertainties and outlines approaches for their treatment. Recommendations for the potential resolution of current limitations in the treatment of uncertainties in performance assessment are made. Some general issues, as well as a suggested approach for incorporating expert judgment into quantitative performance assessment analysis, are discussed also.This paper was presented (by title) at Emerging Concepts, MGUS-87 Conference, Redwood City, California, 13–15 April 1987.  相似文献   

人造首饰废水处理方法研究     

田由芸  张中南  李家丰 《中国海洋大学学报(自然科学版)》1997,(4)

采用铁屑处理人造首饰废水。经处理后的废水，各项指标均达到国家排放标准。研究了铁屑用量、作用时间等的最佳值。与硫酸亚铁法做了比较，其优点是用量少、成本低、处理效果好，并做到以废治废。  相似文献   

一株六价铬还原菌的分离及其用于含铬废水处理的初步研究     

周海涛  白毓谦 《中国海洋大学学报(自然科学版)》1991,(3)

从济南裕兴化工厂含铬废水排放口及小清河等处的污泥中分离到一株属于假单胞菌属的杆菌。该菌在厌氧条件下以Cr(Ⅵ)作为电子受体,有机物作为电子供体,具有很强的还原铬酸盐、重铬酸盐的能力。研究了该菌的生长以及还原Cr(Ⅵ)的最适条件,并以生活污水为基质进行了实际净化含铬废水的实验,发现该菌生长迅速,还原Cr(Ⅵ)速率高,生态稳定性好,可用于含铬废水的净化。  相似文献   

Implementing the Landfill Directive in Greece: problems, perspectives and lessons to be learned     

KATIA LASARIDI 《The Geographical journal》2009,175(4):261-273

Due to the increasing pressure from the European Union, in the last decade the waste management landscape in Greece has been going through drastic changes, especially regarding policies and legislation. Shifts in management practices, however, have been considerably slower. A major component of this shift is the requirement by the Landfill Directive (LD) to divert increasing quantities of biodegradable municipal waste (BMW) from landfilling. Making use of the four-year extension allowed to countries heavily reliant on landfills, Greece will have to achieve the LD diversion targets in the period 2010–2020. In this paper the main aspects of the LD are outlined and critically placed in the context of the EU waste policy and the priorities of the new Waste Directive. The current state of waste management in Greece is presented with the main planning for new BMW treatment infrastructure. The complex and multifaceted barriers to successful implementation of waste policies in Greece are discussed using the case study of the LD, in an effort to draw lessons for the New Member States.  相似文献   

Simulation investigations of industrial waste migration in heterogeneously layered medium     

Yu. V. Fedorova 《Moscow University Geology Bulletin》2009,64(2):138-141

A model of the mutual influence of macro- and micro salt diffusion upon migration of model industrial wastes in heterogeneously layered medium (sandy and clayey rocks alternation) is developed. We found that micro salt diffusion into blocks will be minimal, if it occurs under natural conditions. In the case of mutual diffusion and sorption of isotopes as one chemical agent, clayey blocks “shut” due to micro salt diffusion, and radionuclides do not penetrate into them.  相似文献