Prediction of biochemical methane potential of urban organic waste using Fourier transform mid-infrared photoacoustic spectroscopy and multivariate analysis

被引：10

作者：

Huang, Jing ^{[1
]}

Bekiaris, Georgios ^{[2
]}

Fitamo, Temesgen ^{[3
]}

Scheutz, Charlotte ^{[3
]}

Bruun, Sander ^{[1
]}

机构：

[1] Univ Copenhagen, Dept Plant & Environm Sci, Thorvaldsensvej 40, DK-1871 Frederiksberg, Denmark

[2] Agr Univ Athens, Dept Crop Sci, Iera Odos 75, Athens 11855, Greece

[3] Tech Univ Denmark, Dept Environm Engn, Bldg 115, DK-2800 Lyngby, Denmark

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2021年 / 790卷

关键词：

Anaerobic digestion; Biochemical methane potential (BMP); FTIR-PAS; Urban organic waste; PLSR modeling; INFRARED-SPECTROSCOPY; ENZYMATIC-HYDROLYSIS; CHEMICAL-COMPOSITION; ANAEROBIC-DIGESTION; RAPID-DETERMINATION; FTIR; BIODEGRADABILITY; MATTER; BMP;

D O I：

10.1016/j.scitotenv.2021.147959

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biochemical methane potential (BMP) assays are widely used to assess feedsocks in oder to control the process of biogas production. However, the continuous evaluation of feedstocks using a BMP assay is expensive, timeconsuming and challenging. In this study, Fourier transform mid-infrared photoacoustic spectroscopy (FTIRPAS) was used to predict the BMP values of 87 urban organic waste (UOW) samples derived from different sources in Denmark. The developed model of BMP prediction showed a coefficient of determination (R2) of 0.86 and a root mean square error (RMSE) of 59.3 mL CH4/g VS in prediction. The interpretation of the regression coefficients used in the calibration showed a positive correlation with BMP for relatively easily degradable compounds, such as aliphatics, most likely lipids and amides most likely in proteins, while a negative correlation was found with lignin and hemicellulose. (c) 2021 Elsevier B.V. All rights reserved. <comment>Superscript/Subscript Available</comment

引用

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