Journal article
Modeling effects of granules on the start-up of anaerobic digestion of dairy wastewater with Langmuir and extended Freundlich equations
Bioprocess and biosystems engineering, Vol.33(7), pp.833-845
09/2010
Handle:
https://hdl.handle.net/2376/101503
PMID: 20148268
Abstract
The effects of granules-inocula on the start-up of anaerobic reactors treating dairy manure were studied in a batch-fed reactor. The effects of start-up period and ratio of granules to feed were analyzed. Results indicated that the effects of start-up period could be described by Langmuir model, while the Extended Freundlich model could be used to model the effects of ratio of granules to feed on cumulative biogas production. In addition, transmission electron microscopes (TEM) and scanning electron microscope analysis were conducted to elucidate the distribution of microbial population and micro-colonies in granules and manure. From the TEM micrographs analyses, the ratios the Syntrophobacter and methanogens in granule and manure were shown to be 1.57 ± 0.42 and 0.22 ± 0.20, respectively. These results demonstrated that granules-inocula could reduce the period required for onset of biogas by 25%.
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Details
- Title
- Modeling effects of granules on the start-up of anaerobic digestion of dairy wastewater with Langmuir and extended Freundlich equations
- Creators
- Pramod Pandey - Department of Agricultural and Biosystems Engineering Iowa State University Ames IA 50011 USAPius Ndegwa - Department of Biological Systems Engineering Washington State University Pullman WA 99164-6120 USAJ Alldredge - Department of Statistics Washington State University Pullman WA 99164-3144 USAMarvin Pitts - Department of Biological Systems Engineering Washington State University Pullman WA 99164-6120 USAM Soupir - Department of Agricultural and Biosystems Engineering Iowa State University Ames IA 50011 USA
- Publication Details
- Bioprocess and biosystems engineering, Vol.33(7), pp.833-845
- Academic Unit
- Mechanical and Materials Engineering, School of; Biological Systems Engineering, Department of
- Publisher
- Springer-Verlag; Berlin/Heidelberg
- Identifiers
- 99900546514301842
- Language
- English
- Resource Type
- Journal article