外文翻譯--用表面活性劑改性的涂氧化鐵砂對(duì)天然有機(jī)物的去除(中文-資料下載頁
2025-05-12 06:14本頁面
【導(dǎo)讀】改性劑只是將HDTMA覆在IOCS的表面，并不改變IOCS的物理性質(zhì)。后的IOCS表現(xiàn)出對(duì)NOM較快的初始吸附和更高的吸附能力。強(qiáng)在較高pH值下更為顯著。與未改性的IOCS相比較，HDTMA-IOCS能夠去除更過的。疏水性物質(zhì)和NOM分子，且它的吸附能力受濾料本身的鐵強(qiáng)度變化的影響較小。IOCS的這種吸附能力可以通過用NaOH溶液再生或用HDTMA溶液重塑。IOCS吸附可能是一種很有前途的去除NOM替代技術(shù)。天然有機(jī)物存在于所有的天然水資源中。它是一類同時(shí)具有親水基（酚。類和羧酸）和疏水性官能團(tuán)等復(fù)雜有機(jī)物的混合物[1]。是無害的，但它可以與消毒劑反應(yīng)形成消毒副產(chǎn)物[2]。這造成的結(jié)果是NOM存在加大了絮凝劑、氧化劑和吸附劑的藥劑使用量和膜的清?；炷?，膜過濾，臭氧/生物過濾和吸附等。在這些工藝中，很多情況下低成本的吸附劑成。為一個(gè)相當(dāng)吸引人的選擇。表面被覆上一層鐵的氧化物的IOCS已被證明是一種有效的。在對(duì)NOM的去除上IOCS比其他吸附劑具有以下幾個(gè)優(yōu)點(diǎn)：配備簡
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