本文關(guān)鍵詞： 海水淡化反滲透膜 反滲透 耐酸性 耐堿性　出處：《水處理技術(shù)》2016年07期 　論文類型：期刊論文

【摘要】：選用2款海水淡化反滲透商品膜SWC5和SWC6,進(jìn)行p H為1和13的酸堿溶液處理,對(duì)處理后的膜組成、形貌結(jié)構(gòu)和分離性能進(jìn)行了分析測(cè)試。紅外結(jié)果顯示,SWC5和SWC6膜酸堿處理膜表面芳香酰胺特征峰與原膜相比有不同程度的減小,證明分離層酰胺鍵發(fā)生了不同程度的水解。元素分析表明,酸堿處理膜酰胺鍵部分水解后產(chǎn)生的-COOH或-COO-引起氧含量升高,其中SWC5膜可能受堿水解作用影響最大。SWC5酸堿處理后膜表面粗糙度升高,而SWC6酸堿處理膜表面峰谷結(jié)構(gòu)更趨于平坦。SWC6膜表面酸堿處理后水接觸角變化很小;而SWC5堿處理后水接觸角顯著下降。2款酸堿處理膜截留率的變化均小于1.0%,但水通量變化程度不同�？傮w上SWC6膜的耐酸堿性能優(yōu)于SWC5膜。
[Abstract]:Two reverse osmosis commercial membranes, SWC5 and SWC6, were treated with pH 1 and 13 acid and alkali solutions. The results of IR show that the characteristic peaks of aromatic amides on the surface of SWC5 and SWC6 treated by acid-base treatment are reduced to some extent compared with the original membrane. Elemental analysis showed that -COOH or -COO- after partial hydrolysis of amide-bond in acid-base treated membrane resulted in an increase in oxygen content. The surface roughness of SWC5 membrane may be the most affected by alkaline hydrolysis. SWC5 acid-base treatment increases the surface roughness, while the peak and valley structure of SWC6 acid-base treatment membrane surface tends to flatten. SWC6 membrane surface surface acid-base treatment water contact angle change is very small; However, the water contact angle decreased significantly after SWC5 alkali treatment. 2. The change of membrane retention was less than 1.0, but the change of water flux was different. On the whole, the acid-alkali resistance of SWC6 membrane was better than that of SWC5 membrane.
【作者單位】： 杭州水處理技術(shù)研究開(kāi)發(fā)中心有限公司;
【基金】：海洋公益性行業(yè)科研專項(xiàng)經(jīng)費(fèi)項(xiàng)目(201305039-3) 國(guó)家科技支撐計(jì)劃課題(2014BAB06B01-04) 浙江省海水淡化技術(shù)研究重點(diǎn)實(shí)驗(yàn)室項(xiàng)目(2012E10001)
【分類號(hào)】：P747
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本文編號(hào)：1536577