共查询到18条相似文献,搜索用时 46 毫秒
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简要介绍了高压水射流清洗去污技术,针对高压水射流去污技术以及核设施退役去污的特殊性,提出了安全管理的具体措施. 相似文献
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简要介绍了低压水、高压水和超高压水去污技术和经验;针对受核污染的水池和房间的不同情况,进行了高压水喷射去污的验证性试验,并得出了一些结论;介绍了核设施退役工程中高压水喷射去污的设计、实施和效果. 相似文献
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压力水去污技术及其在核设施退役工程中的应用 总被引:2,自引:0,他引:2
简要介绍了低压水,高压水和超高压水去污技术和经验,针对受核污染的水池和房间的不同情况,进行了高压水喷射去污的验证性试验,并得出一些结论;介绍了核设施退役工程中高压水喷射去污的设计,实施和效果。 相似文献
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核设施有许多特性,导致了在工厂设备和结构的最终处理和处置中产生了许多独特的问题。有关核设施的退役去污也就成了人们关心的课题。 相似文献
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介绍了编制核设施退役方案应考虑到的主要因素,将其归纳为原则、厂址、经验、安全、放射性源项、政策和其他七大类,36个小题。 相似文献
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Emmanuel Richaud Xavier Colin Carole Monchy‐Leroy Ludmila Audouin Jacques Verdu 《Polymer International》2011,60(3):371-381
The radiochemical degradation of bisphenol A polysulfone was investigated under a γ‐ray dose rate of 24 kGy h?1 up to 30.7 MGy total absorbed dose at 60 °C using gel permeation chromatography, sol–gel analysis, glass transition and rheometry measurements, and oxidation profile measurements by microscopy coupled with Fourier transform infrared analysis in attenuated total reflectance mode. Thin (200 µm) and thick (2 mm) samples were compared. Thin samples undergo mainly chain scissions whereas thick ones undergo mainly crosslinking. The thickness of oxidized layers and, radiochemical yields for chain scissions, crosslinking, oxygen absorption and radical formation were tentatively determined from experimental data in order to determine the influence of oxidative processes on radiochemical ageing and to establish the nature of the crosslinking reactions. Copyright © 2010 Society of Chemical Industry 相似文献
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氯气是一种多用途的毒性气体,同时具有很强的氧化性和腐蚀性,一旦发生泄漏,极易发生中毒和污染事故,给人的生命和生态环境造成严重后果。在阐述氯气理化性质、毒理作用和生产工艺流程、洗消剂用量理论估算的基础上,辨识了氯气的危险危害特性,以及与之相关的影响因素,并着重对开展此类事故抢险救援工作的洗消技术措施及注意问题进行了讨论。 相似文献
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以辽阳石化公司硝酸氧化醇酮制备己二酸装置为研究对象,研究了己二酸生产中废气的净化技术及废气消减过程中的影响因素。NO,NO2的净化采用水吸收法,以尾气中NOx含量和回收硝酸浓度为主要考察指标,设计了四因素三水平的正交试验,通过试验得出的优化工艺条件为:喷淋水流量7m3/h、补充空气量900m3/h、吸收温度14℃、吸收压力0.155 MPa,尾气中NOx体积分数为420×10-6,回收硝酸质量分数35%。N2O的净化采用催化分解法,并对影响其分解效果的3个因素进行了研究。结果表明,入口温度应随催化剂活性减弱逐渐升高,进气浓度最好维持在11.0%~11.2%,原料气中含水不利于催化分解。 相似文献
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The process of hot water extraction of tar sand was modified and adapted for removal of heavy oil from bottom tank petroleum sludges, and was submitted to a laboratory feasibility study. This process can also be utilized to clean beach sands contaminated by accidental heavy oil spills. In the case of oil contaminated sands, a single stage extraction has yielded a 99% recovery of hydrocarbons and clean sands (containing less than 0.1% of hydrocarbons) which are thus safe to be returned to the environment. In the case of petroleum bottom tank sludge, it was necessary to proceed with a double stage extraction with the addition of a wetting agent. A dosage of a Na2 Si O3 aqueous solution of 1% by weight has proven efficient, allowing an 82% recovery of hydrocarbons, with only 0.5% of hydrocarbons content in the solid residues. 相似文献