Abstract：The wastes with obvious discard characteristics were suitable for on-site identification. Most other inorganic materials were needed to use a variety of analytical instruments to analyze their physical and chemical properties and characteristics. According to the analysis results, solid waste attributes were identified. Based on the examples of identification of solid wastes of inorganic materials, seven commonly used analytical methods in identification of solid wastes of inorganic materials were expounded. They were X-ray fluorescence spectroscopy, X-ray diffraction, laser particle size, scanning electron microscopy, polarizing microscope, X-ray energy spectrum and titrimetric analysis. A kind of imported inorganic material was detected by X-ray fluorescence spectrum, X-ray diffraction, X-ray energy spectrum and scanning electron microscopy, polarizing microscope. The results showed that the main elements of the material were cobalt, oxygen, sulphur, magnesium, manganese and silicon. The main phases were cobalt oxide, cobalt sulfate, Mg3Si2O5(OH)4 and Co3(OH)4Si2O5. It was inferred that the material was a mixture of cobalt oxide produced in the production process, which had not undergone extraction, separation, precipitation and calcination processes. According to the relevant identification terms in GB 34330-2017 the identification standards for solid wastes General rules, the conclusion that the material belonged to solid waste was obtained. The general identification method and process of solid waste for imported inorganic materials were established. It would provide reference for solid waste identification and supervision of imported inorganic materials, which had great significance for effectively curbing the influx of inorganic solid wastes into China and protecting the ecological environment and human health.
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