共查询到19条相似文献,搜索用时 140 毫秒
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结合我国大学化学实验室的安全管理现状,介绍了加州大学圣迭戈分校化学实验室的安全管理经验,包括实验室安全管理制度、实验室准入、安全意识养成、安全巡查、试剂存放、危险品操作、废弃物处理以及实验室布局等方面。为国内高校的化学实验室安全管理提供借鉴。 相似文献
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借鉴美国主流高校EHS体系建设我国的实验室安全文化 总被引:1,自引:0,他引:1
以美国化学类专业排名前30的高等院校的环境安全与健康管理体系(Environment,HealthSafety,简写为EHS)为研究对象,进行了信息的收集、分析与整合,从中总结出美国高校EHS管理体系的6个特点;进一步介绍了美国高校EHS管理体系架构的确立与运作。结合目前我国高校实验室安全管理存在的主要问题,提出了建设、发展和丰富我国高校的实验室安全文化是当前最基础性的建设任务之一,以期引起高校管理部门对安全问题的真正重视并落实到行动中。 相似文献
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利用先进的网络技术将高校危险废弃物的管理形成有效的闭环,减少化学教学及研究活动对环境的危害,通过对实验室危险废弃物的动态监控,初步掌握各实验室教学及科研工作产生的危险废弃物的情况,从而给出安全环保的合理化建议,促进高校实验室亟待解决的环境保护和安全工作。 相似文献
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随着国家对高等教育和科研投入的增加,高校和科研院所在教学和科研水平方面得到极大的提升,但同时实验室化学废物量呈现爆炸式增长,由此带来的安全隐患和污染代价也同比例增加,已成为目前困扰高校发展的巨大难题。实验室化学废物社会处置能力的缺失或不足以及相关法律法规的不健全是制约这一问题解决的根本。本文结合国内实验室化学废物现状、境外实验室化学废物处置可资借鉴的经验,从科研实验室化学废物处置相关法律法规入手,提出一系列有关制度建设方案及危废处理方案的思考,为实验室化学废物处理建言献策。 相似文献
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化学形态分析软件CHEMSPEC及其应用 总被引:3,自引:0,他引:3
放射性核素在地质层中的吸附和迁移行为与其所处的化学形态密切相关.为了预测在处置库受损情况下放射性核素的时间和空间分布,需要建立化学形态分析与水力学计算相耦合的数学模型及计算软件.为此,我们编写了化学形态分析软件CHEMSPEC.本文在简要介绍该软件的原理和程序结构后,着重介绍该程序为防止质量平衡方程组迭代求解过程的发散所采取的措施,提出用“预报-校正法”处理沉淀-溶解平衡的算法,以及用“冻结”和“解冻”氧化态的策略处理包含氧化还原反应和沉淀反应的化学平衡的计算.本文用4个典型例子说明CHEMSPE在现阶段能解决些什么问题.最后讨论了存在的问题和尚待完成的工作. 相似文献
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为考察大一学生化学实验室安全基础知识,对天津理工大学化学化工学院大一学生警示标识、危险化学品性质、废弃物处理及意外处置等安全知识进行问卷调查。结果表明:60.4%的学生将易燃标识与氧化剂标识混淆;在危险化学品性质和酸/碱撒漏处理方面有待加强。基于以上结果,在后续安全教育过程中,普及GHS标识及MSDS,对相关知识进行针对性的查漏补缺;充分利用线上资源,弥补线下教育因时间有限、容量有限导致的不足。 相似文献
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The adsorption and migration behavior of a radionuclide in geological media heavily depends on its chemical forms in a given
chemical environment. In order to predict the temporal and spatial distribution of radionuclides around a disposal site when
its canister is damaged, it is necessary to develop coupled chemical speciation-solute transport models and relevant software.
For that reason, we wrote a new chemical speciation program CHEMSPEC. In this paper, the principles and structure of CHEMSPEC
are briefly described, and the strategy and algorithms that were used in this code are interpreted in some detail, such as
the measures adopted to prevent divergence in iteratively solving the mass balance equations, the “predictor-corrector” algorithm
for calculation of the number and quantities of solid species formed, and the alternate use of “freezing” and “defreezing”
oxidation states in handling of co-existent redox and precipitation equilibria. Four examples are given to illustrate CHEMSPEC’s
features and capabilities. 相似文献
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R. C. Orlando E. A. N. Fernandes M. Szikszay 《Journal of Radioanalytical and Nuclear Chemistry》1994,179(2):259-266
This study comprises Tertiary sediments (clays, silts, and fine clayey sands) from the unsaturated zone of the Experimental Station in the University of São Paulo, taken from a nine meters depth profile; ten samples were separated in bulk and <53 m fractions. Chemical composition was determined by INAA to ascertain the distribution of trace elements throughout the sediment deposition, and to establish the background parameters, useful for mobilization studies of such elements after industrial waste disposal. 相似文献
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E. V. Babaev 《Chemistry of Heterocyclic Compounds》1995,31(8):997-1000
We propose the use of computer animation techniques for representation of knowledge about organic reactions, in particular as applied to syntheses and transformations of heterocycles. We discuss general questions of the methodology of chemical animation as a new method of communication via electronic journals and an effective teaching method. We illustrate the technical and methodological means allowing us to solve the resulting problems, using as an example the operation of a specific program.M. V. Lomonosov State University, Moscow 119899. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1141–1145, August, 1995. Original article submitted July 28, 1995. 相似文献
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Ortiz V Nielsen SO Discher DE Klein ML Lipowsky R Shillcock J 《The journal of physical chemistry. B》2005,109(37):17708-17714
A DPD model of PEO-based block copolymer vesicles in water is developed by introducing a new density based coarse graining and by using experimental data for interfacial tension. Simulated as a membrane patch, the DPD model is in excellent agreement with experimental data for both the area expansion modulus and the scaling of hydrophobic core thickness with molecular weight. Rupture simulations of polymer vesicles, or "polymersomes", are presented to illustrate the system sizes feasible with DPD. The results should provide guidance for theoretical derivations of scaling laws and also illustrate how spherical polymer vesicles might be studied in simulation. 相似文献
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Amaia Guevara-Riba Angels Sahuquillo Roser Rubio Gemma Rauret 《Accreditation and quality assurance》2007,12(5):241-248
The implementation of the European Water Framework Directive (WFD) and of the sediment-quality criteria related to the potential
disposal of dredged materials is expected to involve a substantial increase in the number of chemical analyses performed in
marine environmental control laboratories. The chemical characterization of sediments (metals, elemental composition, etc.)
and the potential release of metals under changing environmental conditions are relevant when dealing with risk assessment.
The present paper describes the preparation of a quality control material (QCM) harbor sediment carried out in a specifically
equipped laboratory at the University of Barcelona. The results of homogeneity and stability studies for total metal content
(Cd, Cr, Cu, Ni, Pb, and Zn), extractable metal following the BCR three-step sequential extraction procedure (BCR-SEP), and
total carbon content show the suitability of QCM for multi-parameter routine quality control (QC) in marine environmental
laboratories. 相似文献
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Based on the theme of "chemical awareness and safety accident response capability", this paper conducts a questionnaire survey for college students. In response to the survey results, scientific, popular, and novel offline activities/online publicity will be used to popularize chemical basics, relevant laws and regulations, and chemical safety accident emergency response methods for university students. The aim is to improve the level of understanding of various types of chemicals among college students. In the event of sudden chemical safety incidents, corrective measures can be taken, and useful information can be accurately identified after a chemical accident. 相似文献