本文關(guān)鍵詞：活性炭表面性質(zhì)對(duì)其控制超濾膜不可逆污染的影響　出處：《中國(guó)給水排水》2016年17期 　論文類型：期刊論文

  更多相關(guān)文章： 粉末活性炭 吸附 超濾膜 不可逆污染 天然有機(jī)物

【摘要】：不可逆污染是影響超濾技術(shù)在水處理領(lǐng)域推廣的重要因素。選取三種粉末活性炭A、B、C作為吸附劑進(jìn)行膜前預(yù)處理后,通過(guò)進(jìn)行浸沒(méi)式超濾膜污染試驗(yàn),考察活性炭吸附對(duì)超濾膜不可逆污染的控制作用,并分析活性炭的物理化學(xué)性質(zhì)及其對(duì)天然有機(jī)物的吸附效果與控制不可逆膜污染之間的關(guān)系,探討活性炭吸附前處理對(duì)不可逆膜污染的影響機(jī)理。試驗(yàn)表明,活性炭吸附對(duì)超濾膜不可逆污染有一定的控制作用,三種活性炭對(duì)不可逆膜污染的控制效果為A≈BC;而三種活性炭對(duì)原水中有機(jī)物的吸附效果順序?yàn)锳BC,說(shuō)明活性炭對(duì)水中天然有機(jī)物的整體吸附性能并不能完全反映其控制不可逆膜污染的效果。進(jìn)一步分析活性炭理化性質(zhì)后發(fā)現(xiàn),針對(duì)東江原水,活性炭的比表面積、中孔結(jié)構(gòu)以及表面酸性和堿性基團(tuán)的數(shù)量,均影響活性炭吸附前處理控制不可逆膜污染的效果。
[Abstract]:Irreversible pollution is an important factor affecting the popularization of ultrafiltration technology in the field of water treatment. The control effect of activated carbon adsorption on the irreversible fouling of ultrafiltration membrane was investigated. The physical and chemical properties of activated carbon and the relationship between the adsorption effect of activated carbon on natural organic matter and the control of irreversible membrane fouling were analyzed. The effect mechanism of activated carbon pretreatment on irreversible membrane fouling was discussed. The experiment showed that activated carbon adsorption had certain control effect on the irreversible fouling of ultrafiltration membrane. The control effect of three kinds of activated carbon on irreversible membrane fouling is A 鈮，

本文編號(hào)：1435077