棉花可用于处理石油泄漏
文章来源:未知 文章作者:enread 发布时间:2013-05-17 07:20 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
With the Deepwater Horizon disaster emphasizing the need for better ways of cleaning up oil spills, scientists are reporting that unprocessed, raw cotton may be an ideal, ecologically friendly answer, with an amazing ability to sop1 up(吸水) oil. Their report, which includes some of the first scientific data on unprocessed, raw cotton's use in crude oil spills, appears in the ACS journal Industrial & Engineering Chemistry Research.
 
Seshadri Ramkumar and colleagues note that a particular need exists for oil-spill sorbents(吸着剂) that are abundantly available at relatively2 low cost, sustainable and biodegradable. There have been extensive studies on fibers3 such as barley4 straw, kapok5(木棉) and wool -- but big gaps in knowledge about their basic crude oil-uptake mechanisms6 and no data on unprocessed raw cotton. Ramkumar's team decided7 to fill those gaps with research on the oil sorption properties of low micronaire cotton, a form of unprocessed cotton with relatively less commercial value.
 
They report that each pound of the material has the ability to sop up and hold more than 30 pounds of crude oil. The cotton fibers take up oil in multiple ways, including both absorption and adsorption (in which oil sticks to the outer surface of the cotton fiber). "In contrast to synthetic8 sorbents, raw cotton with its high crude oil sorption capacity and positive environmental footprint make it an ecologically friendly sorbent for oil spill cleanups," the report concludes.
 
The authors acknowledge funding from the Texas State Support Program of Cotton Incorporated and The CH Foundation.


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1 sop WFfyt     
n.湿透的东西,懦夫;v.浸,泡,浸湿
参考例句:
  • I used a mop to sop up the spilled water.我用拖把把泼出的水擦干。
  • The playground was a mere sop.操场很湿。
2 relatively bkqzS3     
adv.比较...地,相对地
参考例句:
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
3 fibers 421d63991f1d1fc8826d6e71d5e15f53     
光纤( fiber的名词复数 ); (织物的)质地; 纤维,纤维物质
参考例句:
  • Thesolution of collagen-PVA was wet spined with the sodium sulfate as coagulant and collagen-PVA composite fibers were prepared. 在此基础上,以硫酸钠为凝固剂,对胶原-PVA共混溶液进行湿法纺丝,制备了胶原-PVA复合纤维。
  • Sympathetic fibers are distributed to all regions of the heart. 交感神经纤维分布于心脏的所有部分。
4 barley 2dQyq     
n.大麦,大麦粒
参考例句:
  • They looked out across the fields of waving barley.他们朝田里望去,只见大麦随风摇摆。
  • He cropped several acres with barley.他种了几英亩大麦。
5 kapok TpZzpL     
n.木棉
参考例句:
  • As all we know,kapok is the city flower of Guangzhou.众所周知,木棉是广州市的市花。
  • Kapok becomes red when spring comes.春天来了,木棉红了。
6 mechanisms d0db71d70348ef1c49f05f59097917b8     
n.机械( mechanism的名词复数 );机械装置;[生物学] 机制;机械作用
参考例句:
  • The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
  • He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》
7 decided lvqzZd     
adj.决定了的,坚决的;明显的,明确的
参考例句:
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
8 synthetic zHtzY     
adj.合成的,人工的;综合的;n.人工制品
参考例句:
  • We felt the salesman's synthetic friendliness.我们感觉到那位销售员的虚情假意。
  • It's a synthetic diamond.这是人造钻石。
TAG标签: oil materials cotton
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