制備工藝對(duì)活性炭吸附船舶含油污水容量的影響
發(fā)布時(shí)間:2018-02-23 05:17
本文關(guān)鍵詞: 船舶污水處理 制備工藝 活性炭 吸附容量 乳化油 出處:《船舶工程》2016年02期 論文類(lèi)型:期刊論文
【摘要】:為開(kāi)發(fā)適用于船舶含油污水處理的吸附劑,研究了以蔗糖為原料、H3PO4為活化劑的制備活性炭。采用單因素優(yōu)化法分析了浸漬比(H3PO4質(zhì)量∶蔗糖質(zhì)量)、活化溫度、活化時(shí)間及升溫速率對(duì)活性炭吸附乳化油容量的影響。結(jié)果表明,在浸漬比2.5、活化溫度550℃、活化時(shí)間2 h、升溫速率15℃/min的條件下制備的活性炭對(duì)乳化油吸附量最大,達(dá)到57.6 mg/g。在吸附量對(duì)比實(shí)驗(yàn)中發(fā)現(xiàn),較大比表面積的商用活性炭對(duì)乳化油吸附量明顯低于較小比表面積的自制活性炭,可見(jiàn)活性炭比表面積并非決定吸附性能的主要因素。通過(guò)孔隙結(jié)構(gòu)表征可知,活性炭試樣比表面積達(dá)到1 095 m2/g,總孔容積1.72 cm3/g,中孔容積1.20 cm3/g,平均孔徑6.3 nm,該活性炭中孔發(fā)達(dá)適合用于含油污水處理。
[Abstract]:In order to develop an adsorbent suitable for the treatment of oily sewage from ships, the preparation of activated carbon with sucrose as raw material and H _ 3PO _ 4 as activator was studied. The mass of impregnated ratio of H _ 3PO _ 4, sucrose quality and activation temperature were analyzed by single factor optimization method. The effect of activation time and heating rate on the capacity of emulsified oil adsorbed by activated carbon was studied. The results showed that the adsorption capacity of emulsified oil was the highest under the conditions of impregnation ratio 2.5, activation temperature 550 鈩,
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