NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe
The feasibility of using a diffuse reflectance probe attached to a near infrared spectrometer to monitor the total ammonia nitrogen (TAN) content in an anaerobic digester run on cattle manure was investigated; as a previous study has indicated that this probe can be easily attached to an anaerobic d...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-02-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/12/2/2340/ |
| _version_ | 1811306841853919232 |
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| author | Alastair J. Ward Henrik B. Møller Mette Marie Løkke Sutaryo Sutaryo Chitra S. Raju |
| author_facet | Alastair J. Ward Henrik B. Møller Mette Marie Løkke Sutaryo Sutaryo Chitra S. Raju |
| author_sort | Alastair J. Ward |
| collection | DOAJ |
| description | The feasibility of using a diffuse reflectance probe attached to a near infrared spectrometer to monitor the total ammonia nitrogen (TAN) content in an anaerobic digester run on cattle manure was investigated; as a previous study has indicated that this probe can be easily attached to an anaerobic digester. Multivariate modelling techniques such as partial least squares regression and interval partial least squares methods were used to build models. Various data pre-treatments were applied to improve the models. The TAN concentrations measured were in the range of 1.5 to 5.5 g/L. An R2 of 0.91 with an RMSEP of 0.32 was obtained implying that the probe could be used for monitoring and screening purposes. |
| first_indexed | 2024-04-13T08:52:47Z |
| format | Article |
| id | doaj.art-f90d8c32c94b4c2f91a23dc11628c775 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T08:52:47Z |
| publishDate | 2012-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f90d8c32c94b4c2f91a23dc11628c7752022-12-22T02:53:26ZengMDPI AGSensors1424-82202012-02-011222340235010.3390/s120202340NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance ProbeAlastair J. WardHenrik B. MøllerMette Marie LøkkeSutaryo SutaryoChitra S. RajuThe feasibility of using a diffuse reflectance probe attached to a near infrared spectrometer to monitor the total ammonia nitrogen (TAN) content in an anaerobic digester run on cattle manure was investigated; as a previous study has indicated that this probe can be easily attached to an anaerobic digester. Multivariate modelling techniques such as partial least squares regression and interval partial least squares methods were used to build models. Various data pre-treatments were applied to improve the models. The TAN concentrations measured were in the range of 1.5 to 5.5 g/L. An R2 of 0.91 with an RMSEP of 0.32 was obtained implying that the probe could be used for monitoring and screening purposes.http://www.mdpi.com/1424-8220/12/2/2340/NIRSbiogasammoniainhibitionmonitoringmanurePLSiPLS |
| spellingShingle | Alastair J. Ward Henrik B. Møller Mette Marie Løkke Sutaryo Sutaryo Chitra S. Raju NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe Sensors NIRS biogas ammonia inhibition monitoring manure PLS iPLS |
| title | NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe |
| title_full | NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe |
| title_fullStr | NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe |
| title_full_unstemmed | NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe |
| title_short | NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe |
| title_sort | nir monitoring of ammonia in anaerobic digesters using a diffuse reflectance probe |
| topic | NIRS biogas ammonia inhibition monitoring manure PLS iPLS |
| url | http://www.mdpi.com/1424-8220/12/2/2340/ |
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