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paul9979

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[求助] 求助翻譯一段英文，麻煩大俠了。

Based on the above results and discussions, it can be hypothesized that the self-supporting NaA zeolite membranes have a pervaporation effect on the desalination of NaCl solution under some conditions if the membranes have a suitable thickness (approximately 9.4mm with ion % rejection of 99.5%) and that this membrane is possible used as separation membranes for real seawater desalination because they possess high compressive strength (approximately 57 MPa) and good ion % rejection (approximately 99.5% at a water flux of 0.42 kg m-2 h-1 and 25ºC). In addition, the geopolymers can be easily fabricated and free-sintered at a low cost in contrast to traditional membranes. Therefore, the use of zeolite membranes for the separation of water from mixed solutions would be economical and effective. Although the technique and the desalination mechanism controlled by the non-zeolitic pores need to be improved, this paper provides new methods for the fabrication of self-supporting zeolite membranes with different Si/Al ratios (such as NaX, NaY, and ZSM-5) by adjusting the composition of the geopolymers. These membranes can be applied for dehydration, seawater desalination, and catalytic membrane reactors, as will most likely be studied in future works. In addition, the improvement of the separation effect by effectively closing the non-zeolitic porosity at the surface will be investigated.

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1樓 2015-06-16 22:29:38

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jiangguofeng

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paul9979: 金幣+25, 翻譯EPI+1, ★★★★★最佳答案 2015-06-17 21:59:33

基于以上所述的結(jié)果和討論,可以推測,這種自承NaA分子篩膜板如果具有合適的厚度（約9.4mm, 99.5%的離子截留率）就會(huì)在一定條件下對(duì)NaCl溶液的脫鹽具有一種滲透蒸發(fā)的作用，而且這種膜板由于具有高抗壓強(qiáng)度（約57兆帕）和良好的離子截留率（約99.5%，于0.42kg m-2h-1和25℃）可能用作實(shí)際海水脫鹽的分離膜。另外，這種地質(zhì)聚合物不同于傳統(tǒng)的膜板，免燒結(jié)，能夠以很低的成本很容易地制作出來。所以,在混合溶液的水分離當(dāng)中使用分子篩膜板可能是最經(jīng)濟(jì)的和有效的。雖然這種通過非沸石孔控制的技術(shù)和脫鹽機(jī)制仍需進(jìn)一步改進(jìn)，本文提供新的方法是通過調(diào)整地質(zhì)聚合物的組分制造具有不同Si/Al比（例如，NaX, NaY和ZSM-5）的自承分子篩膜板。<這種膜板可能應(yīng)用于脫水、海水脫鹽和催化膜反應(yīng)器，這最有可能是將來的工作中研究的對(duì)象。另外，還將調(diào)查通過有效地密合非沸石表面上的孔隙度改善分離效果的方法。

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2樓2015-06-17 10:50:26

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