Detection device and method for content of emulsified oil in water

Abstract

The invention relates to a detection device and method for detecting the content of emulsified oil in water by means of a photoelectric method. The detection device for the content of the emulsified oil in the water comprises a cylindrical transparent sample cell (1) which is pervious to light, a light source (2) positioned at one side of the sample cell, an optical detector (3) positioned at the other side of the sample cell, a microprocessor (4) connected with the optical detector, and a power module (5) for supplying power for the microprocessor. The detection method comprises the steps of: switching on the light source; collecting continuous small-angle scattering light in the optical detector; and obtaining the concentration of the emulsified oil according to a scattering spectrum. According to the detection device and the detection method, detection results are not affected by the oil type or other organic interfering substances, and the detection device and the detection method can adapt to complex on-site environments, and are easy to operate, low in price and high in instrument sensitivity.

Description

Technical field: [0001] The invention relates to a detection device and method for detecting emulsified oil content in water by photoelectric means. Background technique: [0002] Oil leakage and pollution are often accompanied by oil extraction and transportation. Currently, the problem of mineral oil leakage is becoming more and more serious, which has attracted the attention of environmental protection departments in various countries. The oil in the water seriously endangers the ecological balance of the water body and the health of human beings. Oil substances will form an oil film on the water surface, affecting the gas exchange between air and water. When decomposed by microorganisms, it will consume dissolved oxygen in water and easily deteriorate water quality. Therefore, it is particularly important to detect the content of oil pollutants in water. However, due to the various forms of oil molecules dispersed in water, including slick oil, dispersed oil, emulsified...

AI Technical Summary

Problems solved by technology

These methods are complicated to operate and the experimental results are easily affected by human factors

Conventional methods include infrared spectrophotometry, ultraviolet fluorescence method, etc. The detection results of infrared spectrophotometry are also easily interfered by oil species and other organic substances. At low concentrations, the light attenuation is relatively weak and the sensitivity is relatively low

Moreover, the extractants used in the experiment process are generally toxic and easy to cause harm to the human body, and the experimental results are easily affected by human factors.

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