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干化罐底油泥的溶剂萃取-海水洗涤工艺

陈 英 陈 东 闫 哲 王玉华 王路辉

陈 英, 陈 东, 闫 哲, 王玉华, 王路辉. 干化罐底油泥的溶剂萃取-海水洗涤工艺[J]. 环境科学研究, 2014, 27(11): 1278-1284.
引用本文: 陈 英, 陈 东, 闫 哲, 王玉华, 王路辉. 干化罐底油泥的溶剂萃取-海水洗涤工艺[J]. 环境科学研究, 2014, 27(11): 1278-1284.
CHEN Ying, CHEN Dong, YAN Zhe, WANG Yu-hua, WANG Lu-hui. Solvent Extraction-Seawater Washing of Dried Oily Sludge from Crude Oil Tank[J]. Research of Environmental Sciences, 2014, 27(11): 1278-1284.
Citation: CHEN Ying, CHEN Dong, YAN Zhe, WANG Yu-hua, WANG Lu-hui. Solvent Extraction-Seawater Washing of Dried Oily Sludge from Crude Oil Tank[J]. Research of Environmental Sciences, 2014, 27(11): 1278-1284.

干化罐底油泥的溶剂萃取-海水洗涤工艺

基金项目: 浙江省自然科学基金项目(Y12B060012);浙江海洋学院科研启动经费项目

Solvent Extraction-Seawater Washing of Dried Oily Sludge from Crude Oil Tank

  • 摘要: 为节约淡水资源、拓展海水的直接利用途径,采用热化学水洗处理技术开展了基于海水洗涤的罐底油泥处理试验研究. 结果表明:干化罐底油泥(水含量为9.8%、油含量为25.6%、固含量为64.6%,均以w计)不宜直接进行热化学洗涤,需采用轻油(120#溶剂油)进行萃取预处理,萃取后残油量(干基,以w计)为18.8%. 适宜的洗涤液为海水溶液,其ρ(TX-10)(TX-10为壬基酚聚氧乙烯醚)为10 g/L. 液固质量比为5、洗涤温度为60 ℃、搅拌速率为180 r/min、搅拌时间为30~40 min是洗涤萃取残泥的适宜条件,该条件下萃取后的残油量为2.80%. 二级海水洗涤可使残油量降至0.23%,满足GB 4284—1984《农用污泥中污染物控制标准》. 在洗涤废水再利用试验中,为维持洗涤废水的脱油能力,可在每L洗涤废水中补加1 g TX-10. 研究显示,溶剂萃取-海水洗涤工艺可有效处理干化罐底油泥.

     

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  • 收稿日期:  2014-01-02
  • 修回日期:  2014-08-18
  • 刊出日期:  2014-11-25

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