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Published on: September 27, 2024
Effect of control parameters on emitted volatile compounds in municipal solid waste and pine trimmings composting
M Delgado-Rodríguez1, M Ruiz-Montoya, I Giraldez
1Departamento de Ingeniería Quimica, Química Fisica y Química Orgánica. Facultad de Ciencias Experimentales, Campus de "El Carmen", Universidad de Huelva, Huelva, Spain.
Abstract:
To investigate the effect of control parameters (moisture, aeration and C/N ratio) on the composting evolution (temperature, pH, O2 and volatile compounds (VCs)) of municipal solid waste and pine trimmings, a central composite experimental design was used. The ANFIS modelling obtained shows that all the independent parameters were clearly influenced by the studied parameters. The relative influence of the other independent variables on temperature was C/N > moisture > aeration. However, for pH, O2 and VCs followed the order C/N > aeration > moisture. Moreover, the results were concordant, with a positive relation between temperature and VCs. In this way, lower VCs contents in ambient atmosphere have been found by using medium-to-high aeration (< 0.1 l(air) kg(-1) min(-1)), medium-to-high C/N (60-77) and high moisture (> 55%).
