Nuclear and Chemical Waste Management最新文献_第10页

4694128 Float switch construction for monitoring liquid levels 4694128监测液位的浮子开关结构

Nuclear and Chemical Waste Management Pub Date : 1988-01-01 DOI: 10.1016/0191-815X(88)90094-0

引用次数: 0

Heavy metals analysis in Bahrain refinery sludge 巴林炼油厂污泥中重金属分析

Nuclear and Chemical Waste Management Pub Date : 1988-01-01 DOI: 10.1016/0191-815X(88)90075-7

Ismail M. Madany, M.Salim Akhter, S.Mahmood Ali

引用次数: 8

4685066 Contamination monitor and method 4685066污染监测器和方法

Nuclear and Chemical Waste Management Pub Date : 1988-01-01 DOI: 10.1016/0191-815X(88)90046-0

引用次数: 0

A modeling study of geochemical interactions at the Sheffield, Illinois low-level radioactive waste disposal site 在伊利诺斯州谢菲尔德低放射性废物处理场的地球化学相互作用建模研究

Nuclear and Chemical Waste Management Pub Date : 1987-01-01 DOI: 10.1016/0191-815X(87)90065-9

W. Kelly

引用次数: 0

Radioactive decontamination of waste oil by filtration, centrifugation, and chelation 通过过滤、离心和螯合对废油进行放射性去污

Nuclear and Chemical Waste Management Pub Date : 1987-01-01 DOI: 10.1016/0191-815X(87)90070-2

Gerald A. Simiele, Robert A. Fjeld, Carlton Robertson

{"title":"Radioactive decontamination of waste oil by filtration, centrifugation, and chelation","authors":"Gerald A. Simiele, Robert A. Fjeld, Carlton Robertson","doi":"10.1016/0191-815X(87)90070-2","DOIUrl":"10.1016/0191-815X(87)90070-2","url":null,"abstract":"<div>Laboratory studies were conducted on select physical and chemical processes for decontamination of a composite waste lubricating oil from a boiling water reactor. Physical treatments included successive filtration through 25, 8 and 1 μm filters to remove particulate matter and centrifugation to remove water. Chemical treatment consisted of mixing the oil with an aqueous solution of the chelating agent ethylenediaminetetraacetic acid (EDTA) and centrifuging the resulting emulsion. The effectiveness of the treatment processes was evaluated by measuring radionuclide concentrations in the oil following each treatment step and calculating decontamination factors.The total activity of the oil was dominated by 60Co, 54Mn, and 137Cs, although 51Cr, 58Co, 59Fe, and 134Cs were also present. Filtration consistently achieved decontamination factors of approximately 200, 100, and 40 for 137Cs, 54Mn, and 60Co, respectively, and reduced concentrations of the other radionuclides below their detection limits. Following filtration, centrifugation reduced 137Cs concentrations below the detection limit and reduced 54Mn and 60Co concentrations by approximately 40% and 20%, respectively. Subsequent chemical treatment with EDTA reduced the 54Mn concentration to below the detection limit and removed approximately 95% of the remaining 60Co activity. The overall decontamination factor for successive filtration, centrifugation, and chelation was in excess of 10,000 for 54Mn and 137Cs and on the order of 1000 for 60Co.</div>","PeriodicalId":100966,"journal":{"name":"Nuclear and Chemical Waste Management","volume":"7 3","pages":"Pages 257-263"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0191-815X(87)90070-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77385726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Characteristics of radioactivity contamination of soil at the Nevada test site 内华达试验场土壤放射性污染特征

Nuclear and Chemical Waste Management Pub Date : 1987-01-01 DOI: 10.1016/0191-815X(87)90064-7

S.Y Lee, T Tamura, E.H Essington

{"title":"Characteristics of radioactivity contamination of soil at the Nevada test site","authors":"S.Y Lee, T Tamura, E.H Essington","doi":"10.1016/0191-815X(87)90064-7","DOIUrl":"10.1016/0191-815X(87)90064-7","url":null,"abstract":"<div>For 35 years the Nevada Test Site Complex has been contaminated by a combination of transuranic elements, fission products, and activation products. Within the nuclear detonation sites the initial radionuclide distribution depended upon the different types of nuclear tests (airburst, surface, or underground) and meteorological conditions at the time of each test. Results of this study show that the present distribution is the result of wind and water erosion, whereas site specific geomorphic features and pedogenic processes played secondary roles. The high temperatures of the detonations resulted in most of the radionuclides being incorporated into fused soil and rock materials which have very low solubilities in aqueous media. The glassy silicate contaminants vary in size, but most (91%) are greater than 0.1 mm in diameter. Therefore, the radioactivity contributed by the resuspendible (< 0.1 mm) and respirable (< 0.005 mm) particles in the soils is less than 9% of the total soil radioactivity, indicating that the site has a very low potential for off-site environmental and health hazards under natural conditions. Nevertheless, the contaminants are expected to have faster physical and chemical weathering rates than those of soil minerals because they are mostly porous glass rather than crystalline in form. From the results of the characterization studies, suggestions are made to consider pretreatment of the contaminated soils in order to reduce the volume to be removed and to maintain a stable nonerodible surface in the treated area.</div>","PeriodicalId":100966,"journal":{"name":"Nuclear and Chemical Waste Management","volume":"7 3","pages":"Pages 179-190"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0191-815X(87)90064-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87724251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Environmentally assisted cracking behavior of a candidate nuclear waste repository container material in simulated hanford groundwater 模拟汉福德地下水中候选核废料储存库容器材料的环境辅助开裂行为

Nuclear and Chemical Waste Management Pub Date : 1987-01-01 DOI: 10.1016/0191-815X(87)90068-4

L.A. James

引用次数: 2

Judgments of policies designed to elicit local cooperation on llrw disposal siting: Comparing the public and decision makers 对旨在促使地方合作的垃圾处置选址政策的判断:比较公众和决策者

Nuclear and Chemical Waste Management Pub Date : 1987-01-01 DOI: 10.1016/0191-815X(87)90005-2

Richard J. Bord

{"title":"Judgments of policies designed to elicit local cooperation on llrw disposal siting: Comparing the public and decision makers","authors":"Richard J. Bord","doi":"10.1016/0191-815X(87)90005-2","DOIUrl":"10.1016/0191-815X(87)90005-2","url":null,"abstract":"<div>The study reported here solicited the opinions of the general public of the State of Pennsylvania and of key decision makers in environmental, civic, industry, and health groups, on various policy issues connected with the establishment of low-level radioactive waste disposal sites. Specifically, the focus was on their judgment of options designed to elicit local cooperation and their trust in various officials and agencies.The data indicates that the general public views both compensation and power sharing options as important in promoting local cooperation. However, power sharing options are viewed as more important than incentives. The general public consistently demonstrates a preference for options which put control of the site in the hands of locals.On the other hand, influential decision-makers, with the exception of those representing environmental advocacy organizations, tend to view compensation as more important than local power sharing. Their preferences mirror those programs currently being pursued by federal and state officials. Preferences exhibited by leaders of environmental advocacy organizations parallel those of the general public.Furthermore, the general public demonstrates a relative lack of trust in local officials to represent their interests in siting decisions. This raises the issue of legitimacy in negotiations with local communities.</div>","PeriodicalId":100966,"journal":{"name":"Nuclear and Chemical Waste Management","volume":"7 2","pages":"Pages 99-105"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0191-815X(87)90005-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90254237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Engineering design by legislation 立法工程设计

Nuclear and Chemical Waste Management Pub Date : 1987-01-01 DOI: 10.1016/0191-815X(87)90063-5

A. Alan Moghissi

引用次数: 0

4520741 Waste disposal 4520741废物处理

Nuclear and Chemical Waste Management Pub Date : 1987-01-01 DOI: 10.1016/0191-815X(87)90052-0

引用次数: 0