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yyrhyw木虫 (正式写手)
坚持就是胜利！
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[求助]
急需要翻译这段，谢谢
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Carbonation of rawred mud produced by aluminium refineries and a chemically and physically neutralized red mud (Bauxsol™ has been carried out to study the capacity of these wastes to capture carbon dioxide. After only 5 min of carbonation of raw red mud, total alkalinity dropped 85%. Hydroxide alkalinity was almost totallyconsumed, carbonate alkalinity dropped by 88%, and bicarbonate alkalinity increased to 728 mg L−1. After 24 min carbonation, the bicarbonate alkalinity reached its maximum value of 2377 mg L−1, and hydroxide and carbonate alkalinity were virtually absent. After 30 and 60 min carbonation, bicarbonate alkalinity started to decrease slightly as the pH of the slurry increased. After 5 min carbonation of Bauxsol™, total and bicarbonate alkalinity dropped 89% and 9%, respectively. After 20 min carbonation, bicarbonate alkalinity dropped another 11%, but after 30 min carbonation bicarbonate alkalinity increased 26% to levels found in the original Bauxsol material, and pH was stable. Based on these experiments, a calculation of the amount of carbon dioxide that could be removed annually at aluminium refineries in Australia is potentially 15 million tonnes, and suggests that further studies are necessary to maximize this carbon removal process. Furthermore, carbonation produces a product, which can potentially be used in other industrial and agricultural activities to remove toxic metals and nutrients. |
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yyrhyw: 金币+20, 翻译EPI+1, ★★★很有帮助, 非常感谢 2012-04-02 15:05:44
yyrhyw: 金币+20, 翻译EPI+1, ★★★很有帮助, 非常感谢 2012-04-02 15:05:44
| 为了研究红泥原料和用化学和物理方法中和的红泥（BauxolTM）的碳捕获能力对这两种废物进行了碳化处理。对红泥原料只经过5分钟的碳化后，其总碱度就降低了85%。其中氢氧化物碱度基本上被完全消耗了，碳酸盐碱度降低了88%，重碳酸盐碱度上升带728mg/L。碳化24分钟后，重碳酸盐碱度达到其最大值2377mg/L，氢氧化物碱度和碳酸盐碱度就消失了。碳化30分钟和60分钟后，随着泥浆的pH的上升重碳酸盐碱度开始稍微减少。对Bauxsol™进行5分钟碳化后，总碱度和重碳酸盐碱度分别降低了89%和9%。碳化20分钟后，重碳酸盐碱度又减低了11%，但是30分钟后重碳酸盐碱度增加了26%达到Bauxsol™的初始重碳酸盐的碱度水平而pH值没变化。基于这些实验，我们计算出澳大利亚的炼铝厂每年的潜在二氧化碳消耗量为15000000吨，我们建议应该进行深入的研究来使二氧化碳的消耗量最大化。此外，碳化产生了一种产品可能在其他工农业活动中用了清除有毒金属元素和营养素。 |
2楼2012-04-01 15:44:37
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