本文選題：正滲透　切入點(diǎn)：CTA膜　出處：《中國(guó)給水排水》2017年01期

【摘要】：以不同濃度的葡萄糖、蔗糖溶液作為正滲透汲取液,對(duì)比了三醋酸纖維素(CTA)膜和聚酰胺(PA)膜在不同膜朝向下的水通量變化情況。結(jié)果表明:當(dāng)膜的活性層朝向汲取液(ALDS)時(shí),相同汲取液濃度的PA膜水通量高于CTA膜,且隨著汲取液濃度的增大,兩種FO膜的水通量均增大,但水通量的增幅均隨濃度的提高而減小,且蔗糖汲取液對(duì)應(yīng)水通量的增幅高于葡萄糖汲取液;當(dāng)膜的活性層朝向原料液(AL-FS)時(shí),兩種FO膜的水通量均遠(yuǎn)小于AL-DS模式下的水通量,此時(shí)相同汲取液濃度的CTA膜水通量反而高于PA膜,對(duì)于CTA膜,水通量變化規(guī)律與ALDS模式相似,對(duì)于PA膜,隨著汲取液濃度的增大,水通量幾乎不變,增至高濃度時(shí),水通量反而略有下降。
[Abstract]:The changes of water flux of cellulose triacetate (CTAA) membrane and polyamide polyamide (PAA) membrane with different concentrations of glucose and sucrose solution were compared under different membrane orientations. The water flux of PA membrane with the same absorbent concentration was higher than that of CTA membrane, and the water flux of the two membranes increased with the increase of the concentration, but the increase of water flux decreased with the increase of the concentration. The corresponding water flux of sucrose extract was higher than that of glucose extract, and the water flux of the two FO membranes was much smaller than that of the AL-DS model when the active layer of the membrane was oriented towards the raw material solution AL-FSs. The water flux of CTA membrane with the same absorbent concentration was higher than that of PA membrane. For CTA membrane, the change of water flux was similar to that of ALDS model. For PA membrane, the water flux of PA membrane almost remained constant with the increase of absorbent concentration, and increased to high concentration. On the contrary, the water flux decreased slightly.
【作者單位】： 后勤工程學(xué)院國(guó)防建筑規(guī)劃與環(huán)境工程系;重慶市水工業(yè)與環(huán)境工程技術(shù)研究中心;
【基金】：重慶市重大科技攻關(guān)項(xiàng)目(cstc2012gg-sfgc00002) 2013年重慶高校創(chuàng)新團(tuán)隊(duì)建設(shè)計(jì)劃項(xiàng)目(KJTD201340)
【分類號(hào)】：TQ028.8

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