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首页> 外文会议>Waste management 2004 symposium (WM'04): waste management, energy security and a clean environment >RADIOACTIVE CEMENTITIOUS WASTE FORM BEHAVIOR UNDER LONG-TERM FIELD AND LABORATORY TEST CONDITIONS
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RADIOACTIVE CEMENTITIOUS WASTE FORM BEHAVIOR UNDER LONG-TERM FIELD AND LABORATORY TEST CONDITIONS

机译：长期试验和实验室试验条件下放射性胶结废物形态的行为

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Control leaching experiments with laboratory cement samples containing simulated radioactive RBMK operational waste were set up to compare the leaching parameters with the field test leach data of pilot-scale cemented waste forms containing real RBMK operational waste.The aim was to gain information on reliability of field test data and to validate the leach test methods.Average annual ~137 Cs leach rate in deionized water was about thirty times greater then the measured value for the 1~st year of the repository test that may be accounted for by the lower average annual temperature in the repository,influence of leachant medium and some other factors. ~137 Cs cumulative leached fraction(3,7%for 1 yr) was close to value reported in literature for a similar experiment in deionized water.It was more than two orders of magnitude higher then the 1~ st -yr leached fraction in the repository test(0,01%).In the latter case sample volume was 630 times greater and sample surface to volume ratio,S/V,was 8.6 times less.To compare the field test results with the laboratory leach test,a scaling factor S/V multiplied by a temperature factor and a leach rate decrease coefficient related to the leachant media should be taken into consideration.
机译：建立了含有模拟放射性RBMK操作废物的实验室水泥样品的对照浸出实验，以将浸出参数与包含实际RBMK操作废物的中试规模水泥废物形式的现场测试浸出数据进行比较，目的是获得有关现场可靠性的信息测试数据并验证浸出测试方法：去离子水中的年均〜137 Cs浸出率约为储存库测试第一年的测量值的三十倍左右，这可能是由于较低的年平均温度造成的在储存库中，浸出介质的影响和其他一些因素。在去离子水中〜137 Cs的累计浸出率（3.7％/ 1年）接近于文献中报道的值，比1〜st -yr的浸出率高出两个数量级。储库测试（0.01％）。在后一种情况下，样品体积增加630倍，样品表面体积比S / V降低8.6倍。为了将现场测试结果与实验室浸出测试进行比较，比例系数应考虑S / V乘以温度因子和与浸出介质有关的浸出率降低系数。

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