中文摘要：

以蔗糖为碳源,以磷酸为活化剂,在浸渍比（磷酸质量/蔗糖质量）2.5、活化温度550℃下制备活性炭,在膨化温度900℃和膨化时间25s下制备膨胀石墨,复合膨胀石墨/活性炭吸附剂,并测试膨胀石墨密度0.02g/cm3～0.05g/cm3、乳化油流率0.07mL/s～0.6mL/s、吸附柱高度10mm～30mm时的吸油效果。结果表明：在吸附柱高度20mm、乳化油流率小于0.4mL/s时,0.1‰的乳化油经膨胀石墨成型密度为0.03g/cm3的复合吸附剂过滤后的含油量可低于0.005‰;膨胀石墨成型密度0.03g/cm3、乳化油流率0.4mL/s时,吸附柱高度20mm的处理污水含油量小于0.015‰的总处理量为10.35L,即单位体积吸附剂的乳化油处理量为0.3255L/cm3。因此,应根据船舶机舱油水分离器的技术要求,优化复合吸附剂含油污水处理流程。

英文摘要：

Activated carbon sample is synthesized by employing sucrose as source and phosphoric acid as activating agent at temperature 550 ℃ and the impregnation mass ratio of phosphoric acid to sucrose about 2.5. Expanded graphite is prepared by expandable graphite at temperature 900 ℃ under heating duration about 25s. The composite adsorbent is developed by impregnating the activated carbon on the expanded graphite. Adsorption characteristics of the oily water on the adsorbent are evaluated by adsorption experiments performed by varying the density of the expanded graphite, the flow rate of the oily water and the height of the adsorbent column respectively about 0.02 g/cm3-0.05 g/cm3, 0.07 mL/s-0.68mL/s and 10 mm -30 mm. The result shows that under the flow rate 0.4 mL/s, the oil content of the water from the adsorption column, which is in height 20 mm and packed with the expanded graphite in density about 0.03 g/cm3, can be lower than 0.005%0. And the total amount of water whose oil content is smaller than 0. 015%0 can be accordingly up to 10. 35 L, which is equivalent to the specific storage amount of oily water about 0.3255 L/cm3. Conclusions are drawn that optimization of the water processing process for the composite adsorbent should be carried out as per the technical data of an on board oily water separator.