Application of infrared spectroscopy in the determination of oil content in water

The content of petroleum pollutants in environmental water is one of the indicators reflecting the water quality. In this paper, three wavelengths are used to quantitatively test the oil content in water. The sample test is convenient and the data is accurate. The petroleum in the environment comes from the pollution of industrial wastewater and domestic sewage. Oils form an oil film on the water surface, which affects the gas exchange between air and water; oils dispersed in water and adsorbed on particles or existing in water in an emulsified state, when decomposed by microorganisms, will consume dissolved oxygen in the water and easily deteriorate the water quality . Mineral oil is a mixture of alkanes, naphthenes and aromatic hydrocarbons. This article refers to "GB / T16488-1996" Determination of Water Quality Petroleum, Animal and Vegetable Oils Infrared Photometric Method "" and chooses three-wavelength infrared spectroscopy to measure surface water. The measurement results are accurate and the use of "standard oils" is avoided.

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