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Anaerobic digestion is a complex, multi-step biological process. Control of this process can be carried out by analyzing the parameters of dry matter, organic matter and the dry matter concentration of volatile fatty acids (VFA). The aim of the study is to assess the possibility of using near-infrared spectroscopy in the construction of calibration models of dry matter content in the fermenting mixture...
The paper presents the results of modeling an acetic acid and dry matter content carried out by the method of transforming spectral spectra VIS-NIR using software, Unscrambler X 10.1. To build the models reference data obtained applying the Nordman’s method as well as dryer-weight one were used. In respect of of the proposed chemometric method the measuring range between 400 nm and 2170 nm was tested...
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