Cleaning Effect Test and Environmental Property Analysis of Cleaning Agent for Oil Sludge of Tank Bottom

为了解决储油罐底油泥热辅助机械清洗存在的清洗效率低、影响回收油品质和安全环保等问题，研制了环保型储油罐底油泥清洗剂。对研制的清洗剂分别进行了溶蜡速率测试、环保性检测和室内清洗效果分析，结果表明：研制的储油罐底油泥清洗剂，溶蜡速率可达0.035 g/min，发光细菌数EC50可达2.01 × 104 mg/L，BOD/CODCr比值可达0.3，重金属含量远低于标准安全值，具有良好的清洗效果、生物安全和绿色环保性，可增加回收油品质的同时提高60℃热水机械清洗效率25%以上。 The process of heat assistant mechanical cleaning of tank bottom has problems, such as a low cleaning efficiency, decreasing the quality of recovered oil and influencing biological safety and environmental protection. An environmental protection type cleaning agent for oil sludge was prepared to solve these problems. The paraffin dissolution speed, the environmental protection property and the experimental cleaning effects was tested, respectively. The results indicate that: the prepared oil sludge cleaning agent has an excellent cleaning effect with a paraffin dissolution speed of 0.035 g/min, a good biological safety with an EC50 number of 2.01 × 104 mg/L and a green environmental protection with a BOD/CODCr value of 0.3 and a trace content of heavy metals. The oil sludge cleaning agent can increase the efficiency of mechanical cleaning using 60˚C hot water by 25% and improve the quality of recovered oil at the same time.