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Author |
Da Silva, C.; Astals, S.; Peces, M.; Campos, J.L.; Guerrero, L. |
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Title |
Biochemical methane potential (BMP) tests: Reducing test time by early parameter estimation |
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Year |
2018 |
Publication |
Waste Management |
Abbreviated Journal |
Waste Manage. |
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Volume |
71 |
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Pages |
19-24 |
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Keywords |
Anaerobic digestion; Batch test; Biomethane potential; Kinetics; Modelling; Sensitivity functions |
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Abstract |
Biochemical methane potential (BMP) test is a key analytical technique to assess the implementation and optimisation of anaerobic biotechnologies. However, this technique is characterised by long testing times (from 20 to > 100 days), which is not suitable for waste utilities, consulting companies or plants operators whose decision-making processes cannot be held for such a long time. This study develops a statistically robust mathematical strategy using sensitivity functions for early prediction of BMP first-order model parameters, i.e. methane yield (B-0) and kinetic constant rate (k). The minimum testing time for early parameter estimation showed a potential correlation with the k value, where (i) slowly biodegradable substrates (k <= 0.1 d(-1)) have a minimum testing times of >= 15 days, (ii) moderately biodegradable substrates (0.1 < k < 0.2 d(-1)) have a minimum testing times between 8 and 15 days, and (iii) rapidly biodegradable substrates (k > 0.2 d(-1)) have testing times lower than 7 days. (C) 2017 Elsevier Ltd. All rights reserved. |
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Address |
[Da Silva, C.; Guerrero, L.] Univ Tecn Federico Santa Maria, Chem & Environm Engn Dept, Av Espana 1680,Casilla 110, Valparaiso 2340000, Chile, Email: cristopher.dasilva@usm.cl |
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Pergamon-Elsevier Science Ltd |
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English |
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ISSN |
0956-053x |
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Notes |
WOS:000423248500004 |
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Call Number |
UAI @ eduardo.moreno @ |
Serial |
821 |
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