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The total length of the main channel of the South-to-North Water Transfer Project is 1432 kilometers. There are nearly 1, 000 supporting mechanical and electrical equipment along the channel gate station. At the same time, there are more than 1, 000 main roads with channel crossing roads along the route. Oil spills may occur due to various reasons such as equipment leakage or traffic accidents. Entering the channel directly causes pollution of water quality. The pollution of water quality will directly endanger the health of human beings. Therefore, it is essential to quickly and efficiently remove oil pollutants from the water supply channels. This paper analyzes the basic characteristics of the Middle Route Project of South-to-North Water Transfer, and the risk sources of sudden oil pollution, and the common degreasing devices such as oil booms, oil absorbing pads, and oil removal devices based on steel structure pontoons in the main trunk The applicability was analyzed. The results show that the traditional oil-absorbing felt, oil boom and other degreasing devices have poor applicability in the middle line, which can not meet the requirements of the mid-line water quality and channel flow rate, and the adaptability to the channel engineering characteristics is also insufficient. The degreasing device based on the steel structure pontoon can adapt to the current situation of the midline, and has good effects in preventing the oil film from escaping and splashing. Therefore, in general, the degreasing device based on the steel structure pontoon is suitable for the midline burst oil. Effective measures and means of pollution accidents

Risk analysis and emergency countermeasures for oil pollution in main channel of South to North Water Transfer Project