The invention discloses a tracing identification method for industrial
wastewater in a municipal
pipe network based on a three-dimensional
fluorescence spectrum angle
algorithm. The tracing identification method is characterized by comprising the following steps: collecting
industrial area municipal
pipe network confluence well water outside a factory, industrial
wastewater raw water in the factory, treated industrial
wastewater and a
water sample of an enterprise inspection well; mixing the municipal
pipe network confluence well water with the industrial wastewater
raw water, the treated industrial wastewater and enterprise inspection well water in the factory according to a series of different proportions to obtain three-dimensional
fluorescence spectrum data of water samples with different mixing proportions; reading the three-dimensional
fluorescence spectrum data obtained after correction in the step 1 in a python environment, flattening the three-dimensional fluorescence spectrum data into a one-dimensional vector, and performing normalization
processing on the one-dimensional vector to obtain one-dimensional vectors of each group of mixed water samples; the spectral difference and similarity between samples are compared and analyzed through a
spectral angle algorithm, the characteristics of the industrial wastewater are quantitatively evaluated, qualitative recognition of the industrial wastewater in the municipal pipe network is achieved, and the method has the advantages of being efficient, accurate and convenient.