Abstract

Anaerobic treatment using anaerobic digestion can convert organic materials of vinasse into biogas. The purpose of this study was modeling kinetic of biogas production using modified Gompertz model and first order kinetic model at variation of initial pH. Substrates were consisted of two kinds of compositions, which were vinasse+rumen (VR) and vinasse+rumen+urea (VRU). Initial pH in each substrate was 6, 7 and 8. Degradation process was done in 30 days using batch anaerobic digesters at room temperature. Both, at VR and VRU, initial pH of 7 generated the more total biogas than the others two (initial pH of 6 and 8). Biogas formed at substrate of VRU was more than that at substrate of VR. The best condition was substrate of VRU and initial pH of 7. At best condition, kinetic constants of biogas production model using modified Gompertz were ym (biogas production potential) = 6.49 mL/g VS; U (maximum biogas production rate) = 1.24 mL/g VS. day; &lambda (minimum time to produce biogas) = 1.79 days. Whereas kinetic constants of biogas production model using first order kinetic were ym (biogas production potential) = 6.78 mL/g VS; k (biogas production rate) = 0.176 /day. The difference between the predicted and measured biogas yield (fitting error) was higher with the first-order kinetic model (1.54-7.50%) than with the modified Gompertz model (0.76-3.14%).

Keywords:

Biogas, first order kinetic model, initial pH, modified gompertz model, vinasse,

References

1. Adiga, S., R. Ramya, B.B. Shankar, J.H. Patil and C.R. Geetha, 2012. Kinetics of anaerobic digestion of water hyacinth, poultry litter, cow manure and primary sludge: A comparative study. Proceeding of the 2nd International Conference on Biotechnology and Environment Management, 14: 73-78.
   
2. Anderson, G.K. and G. Yang, 1992. Determination of bicarbonate and total volatile acid concentration in anaerobic digesters using a simple titration. Water Environ. Res., 64: 53-59.
   CrossRef    
3. Brannen, A.L. and P.M. Davidson, 1993. Antimicrobial in Foods. 2nd Edn., Marcel Dekker, New York.
   PMid:8426099    
4. Budiyono, I.N., J. Widiasa and S. Sunarso, 2010. The kinetic of biogas production rate from cattle manure in batch mode. Int. J. Chem. Biol. Eng., 3(1): 39-44.
   
5. Budiyono, I.N., I. Syaichurrozi and S. Sumardiono, 2013. Biogas production from bioethanol waste: The effect of pH and urea addition to biogas production rate. Waste Technol., 1(1): 1-5.
   CrossRef    
6. Carucci, G., F. Carrasco, K. Trifoni, M. Majone and M. Beccari, 2005. Anaerobic digestion of food industry wastes: effect of codigestion on methane yield. J. Environ. Eng., 131(7): 1037-1045.
   CrossRef    
7. Deublein, D. and A. Steinhauser, 2008. Biogas from Waste and Renewable Resources. Wiley-VCH Verlag, Weinheim.
   CrossRef    
8. Elbeshbishy, E. and G. Nakhla, 2012. Batch anaerobic co-digestion of proteins and carbohydrates. Bioresour. Technol., 116: 170-178.
   CrossRef    PMid:22609672    
9. Esposito, G., L. Frunzo, A. Panico and F. Pirozzi, 2011. Modelling the effect of the OLR and OFMSW particle size on the performances of an anaerobic co-digestion reactor. J. Process. Biochem., 46: 557-565.
   CrossRef    
10. Kafle, G.K., S.H. Kim and K.I. Sung, 2012. Ensiling of fish industry waste for biogas production: A lab scale evaluation of Biochemical Methane Potential (BMP) and kinetics. Bioresour. Technol., 127: 326-336.
    CrossRef    PMid:23131656    
11. Metcalf, E., 2003. Wastewater Engineering: Treatment, Disposal and Reuse. 4th Edn., McGraw-Hill, Singapore.
    
12. Patil, J.H., M.A. Raj, P.L. Muralidhara, S.M. Desai and G.K.M. Raju, 2012. Kinetics of anaerobic digestion of water hyacinth using poultry litter as inoculum. Int. J. Environ. Sci. Dev., 3(2): 94-98.
    CrossRef    
13. Raposo, F., R. Borja, M.A. Martín, A. Martín, M.A. De la Rubia and B. Rincón, 2009. Influence of inoculum-substrate ratio on the anaerobic digestion of sunflower oil cake in batch mode: Process stability and kinetic evaluation. Chem. Eng. J., 149: 70-77.
    CrossRef    
14. Speece, R.E., 1996. Anaerobic Technology for Industrial Wastewaters. Archae Press, USA.
    PMid:9158342    
15. Sumardiono, S., I. Syaichurrozi, Budiyono and S.B. Sasongko, 2013. The effect of COD/N ratios and pH control to biogas production from vinasse. Int. J. Biochem. Res. Rev., 3(4): 401-413.
    CrossRef    
16. VDI 4630, 2006. Fermentation of Organic Materials: Characterization of the Substrate, Sampling, Collection of Material Data, Fermentation Tests. In: Verein Deutscher Ingenieure (Ed.), VDI-Handbuch Energietechnik, Beuth Verlag GmbH, 10772 Berlin, Germany.
    
17. Yadvika, S., T.R. Sreekrishnan, S. Kohli and V. Ratna, 2004. Enhancement of biogas production from solid substrates using different techniques: A review. Bioresour. Technol., 95: 1-10.
    CrossRef    PMid:15207286    
18. Yavuz, Y., 2007. EC and EF processes for the treatment of alcohol distillery wastewater. Sep. Purif. Technol., 53: 135-140.
    CrossRef    
19. Yusuf, M.O.L., A. Debora and D.E. Ogheneruona, 2011. Ambient temperature kinetic assessment of biogas production from co-digestion of horse and cow dung. Res. Agr. Eng., 57(3): 97-104.
    
20. Yusuf, M.O.L. and N.L. Ify, 2011. The effect of waste paper on the kinetics of biogas yield from the co-digestion of cow dung and water hyacinth. Biomass Bioenerg., 35: 1345-1351.
    CrossRef    
21. Zhu, B., P. Gikas, R. Zhang, J. Lord, B. Jenkins and X. Li, 2009. Characteristics and biogas production potential of municipal solid wastes pretreated with a rotary drum reactor. Bioresour. Technol., 100: 1122-1129.
    CrossRef    PMid:18849162    
22. Zwietering, M.H., I. Jongenburger, F.M. Rombouts and K. van'tRiet, 1990. Modelling the bacterial growth curve. Appl. Environ. Microb., 56(6): 1875-1881.
    PMid:16348228 PMCid:PMC184525    

Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.