Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge
The information of biochemical methane potential (BMP) of wasted sludge is essential to ensure the stable operation of sludge management processes. However, conventional anaerobic digestion (AD) approach for BMP test is time-consuming and labour-intensive. Currently, the technique of Near Infrared S...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/178014 |
| _version_ | 1811691627987599360 |
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| author | Lu, Dan Yan, Wangwang Le, Chencheng Low, Siok Ling Tao, Guihe Zhou, Yan |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Lu, Dan Yan, Wangwang Le, Chencheng Low, Siok Ling Tao, Guihe Zhou, Yan |
| author_sort | Lu, Dan |
| collection | NTU |
| description | The information of biochemical methane potential (BMP) of wasted sludge is essential to ensure the stable operation of sludge management processes. However, conventional anaerobic digestion (AD) approach for BMP test is time-consuming and labour-intensive. Currently, the technique of Near Infrared Spectroscopy (NIRS) is gaining prominence in the biogas production within AD process. Previous studies mostly focused on predicting BMP values for fibrous plant biomass and solid waste, with only a limited number of studies attempting to apply NIRS to obtain BMP values across a wide array of wasted sludge types. To obtain BMP values for this diverse range of wasted sludge efficiently and accurately, it is imperative to develop precise models for assessing BMP values using NIRS. In this study, the possibility of using NIRS to predict the BMP values of wasted sludge was evaluated. A total of 70 sludge samples from different sources were investigated to develop a BMP-prediction model by correlating the measured BMP values with the obtained NIR spectra. As a result, a reliable and successful BMP-prediction model was established with the determination coefficient of 0.90, residual prediction deviation of 3.50 and low root mean square error of prediction of 36.8 mL CH4/g VS. This BMP-prediction model is satisfactory for predicting BMP values of various types of sludge. It could provide support for plant operators to make decisions rapidly, thereby improving the process efficiency and optimizing sludge management procedures. |
| first_indexed | 2024-10-01T06:22:54Z |
| format | Journal Article |
| id | ntu-10356/178014 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:22:54Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1780142024-06-04T02:18:14Z Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge Lu, Dan Yan, Wangwang Le, Chencheng Low, Siok Ling Tao, Guihe Zhou, Yan School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Advanced Environmental Biotechnology Centre (AEBC) Engineering Biochemical methane potential Near-infrared reflectance spectroscopy The information of biochemical methane potential (BMP) of wasted sludge is essential to ensure the stable operation of sludge management processes. However, conventional anaerobic digestion (AD) approach for BMP test is time-consuming and labour-intensive. Currently, the technique of Near Infrared Spectroscopy (NIRS) is gaining prominence in the biogas production within AD process. Previous studies mostly focused on predicting BMP values for fibrous plant biomass and solid waste, with only a limited number of studies attempting to apply NIRS to obtain BMP values across a wide array of wasted sludge types. To obtain BMP values for this diverse range of wasted sludge efficiently and accurately, it is imperative to develop precise models for assessing BMP values using NIRS. In this study, the possibility of using NIRS to predict the BMP values of wasted sludge was evaluated. A total of 70 sludge samples from different sources were investigated to develop a BMP-prediction model by correlating the measured BMP values with the obtained NIR spectra. As a result, a reliable and successful BMP-prediction model was established with the determination coefficient of 0.90, residual prediction deviation of 3.50 and low root mean square error of prediction of 36.8 mL CH4/g VS. This BMP-prediction model is satisfactory for predicting BMP values of various types of sludge. It could provide support for plant operators to make decisions rapidly, thereby improving the process efficiency and optimizing sludge management procedures. Public Utilities Board (PUB) The authors would like to thank the Public Utilities Board (PUB) of Singapore for financial support of the project “Study on the dewaterability of the sludge and the optimization of the polymer dosage in Ulu Pandan, Kranji, Changi and Jurong water reclamation plants (TD/ 33190179)”. 2024-06-04T02:18:14Z 2024-06-04T02:18:14Z 2024 Journal Article Lu, D., Yan, W., Le, C., Low, S. L., Tao, G. & Zhou, Y. (2024). Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge. Science of The Total Environment, 912, 169640-. https://dx.doi.org/10.1016/j.scitotenv.2023.169640 0048-9697 https://hdl.handle.net/10356/178014 10.1016/j.scitotenv.2023.169640 38151129 2-s2.0-85181680995 912 169640 en TD/ 33190179 Science of The Total Environment © 2023 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering Biochemical methane potential Near-infrared reflectance spectroscopy Lu, Dan Yan, Wangwang Le, Chencheng Low, Siok Ling Tao, Guihe Zhou, Yan Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge |
| title | Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge |
| title_full | Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge |
| title_fullStr | Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge |
| title_full_unstemmed | Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge |
| title_short | Near-infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge |
| title_sort | near infrared reflectance spectroscopy for rapid prediction of biochemical methane potential of wastewater wasted sludge |
| topic | Engineering Biochemical methane potential Near-infrared reflectance spectroscopy |
| url | https://hdl.handle.net/10356/178014 |
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