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首页> 外文期刊>Journal of Hazardous Materials >Assessment of alternative management techniques of tank bottom petroleum sludge in Oman
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Assessment of alternative management techniques of tank bottom petroleum sludge in Oman

机译：阿曼罐底石油污泥替代管理技术评估

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This paper investigated several options for environmentally acceptable management techniques of tank bottom oily sludge. In particular, we tested the applicability of managing the sludge by three options: as a fuel supplement; in solidification; as a road material. Environmental testing included determination of heavy metals concentration; toxic organics concentration and radiological properties. The assessment of tank bottom sludge as a fuel supplement included various properties such as proximate analysis, ultimate analysis and energy content. Solidified sludge mixtures and road application sludge mixtures were subjected to leaching using the toxicity characteristic leaching procedure (TCLP). Tank bottom sludge was characterized as having higher concentrations of lead, zinc, and mercury, but lower concentrations of nickel, copper and chromium in comparison with values reported in the literature. Natural occurring radioactive minerals (NORM) activity values obtained on different sludge samples were very low or negligible compared to a NORM standard value of 100 Bq/g. The fuel assessment results indicate that the heating values, the carbon content and the ash content of the sludge samples are comparable with bituminous coal, sewage sludge, meat and bone meal and petroleum coke/coal mixture, but lower than those in car tyres and petroleum coke. The nitrogen content is lower than those fuels mentioned above, while the sulfur content seems comparable with bituminous coal, petroleum coke and a petroleum coke/coal mixture. The apparent lack of teachability of metals from solidification and road material sludge applications suggests that toxic metals and organics introduced to these applications are not readily attacked by weak acid solutions and would not be expected to migrate or dissolved into the water. Thus, in-terms of trace metals and organics, the suggested sludge applications would not be considered hazardous as defined by the TCLP leaching procedure.
机译：本文研究了罐底含油污泥的环境可接受管理技术的几种选择。特别是，我们通过三种选择测试了污泥管理的适用性：作为燃料补充；凝固作为道路材料。环境测试包括重金属浓度的测定；有毒有机物的浓度和放射学性质。罐底污泥作为燃料补充剂的评估包括各种特性，如近期分析，最终分析和能量含量。使用毒性特征浸出程序（TCLP）对固化的污泥混合物和道路施工污泥混合物进行浸出。与文献报道的值相比，储罐底部污泥的特征是铅，锌和汞的浓度较高，但镍，铜和铬的浓度较低。与NORM标准值100 Bq / g相比，在不同污泥样品上获得的天然放射性矿物质（NORM）活性值非常低或可忽略不计。燃料评估结果表明，污泥样品的热值，碳含量和灰分含量与烟煤，污水污泥，肉和骨粉以及石油焦/煤混合物相当，但低于汽车轮胎和石油中的那些。可乐。氮含量低于上述燃料，而硫含量似乎与烟煤，石油焦和石油焦/煤混合物相当。固化和道路污泥应用中金属明显缺乏教学性，这表明引入这些应用中的有毒金属和有机物不易受到弱酸溶液的攻击，并且不会迁移或溶解到水中。因此，就痕量金属和有机物而言，建议的污泥应用不会如TCLP浸出程序所定义的那样被认为是危险的。

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