Polyhydroxyalkanoates (PHAs) production from complex polymer organic waste using anaerobic and aerobic sequence batch reactor

Authors

  • . Salmiati Institute of Environmental and Water Resource Management (IPASA), Universiti Teknologi Malaysia, 81310 Johor, Malaysia.
  • Mohd Razman Salim Institute of Environmental and Water Resource Management (IPASA), Universiti Teknologi Malaysia, 81310 Johor, Malaysia.
  • Zaini Ujang Institute of Environmental and Water Resource Management (IPASA), Universiti Teknologi Malaysia, 81310 Johor, Malaysia.
  • Farrah Aini Dahalan The School of Environmental Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
  • Gustaf Olsson Industrial Automation Dept. of Measurement Technology and Industrial Electrical Engineering (MIE), Lund University, IEA, LTH, Box 118, SE-22100 Lund, Sweden

DOI:

https://doi.org/10.54987/jobimb.v2i2.152

Abstract

A novel method was developed to convert complex polymer organic waste into polyhydroxyalkanoates (PHAs). Palm oil mill effluent (POME) was used as carbon source within this study. The designed laboratory scale system includes two coupled reactors; an anaerobic fermenter for volatile fatty acids (VFAs) production followed by an aerobic sequencing batch reactor (SBR) to obtain PHA. During fermentation, VFAs was produced in the range of 5 to 7g/L and the COD reduction was up to 80% from 65g/L at a sludge retention time (SRT) of 6 days. Acetic acid was the predominant component of the fermentative VFAs. In the succeeding aerobic SBR with a mixed culture, microaerophilic-aerobic conditions increase the PHA production. PHA, analyzed as PHB, reached up to 4.0 x 10-2 g/gVSS. The maximum PHA content observed was only 40% of cell dried weight (CDW). The indication is that the PHA production and process performance will benefit from a mixed microbial culture.

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Published

31.12.2014

How to Cite

Salmiati, ., Salim, M. R., Ujang, Z., Dahalan, F. A., & Olsson, G. (2014). Polyhydroxyalkanoates (PHAs) production from complex polymer organic waste using anaerobic and aerobic sequence batch reactor. Journal of Biochemistry, Microbiology and Biotechnology, 2(2), 61–66. https://doi.org/10.54987/jobimb.v2i2.152

Issue

Vol. 2 No. 2 (2014)

Section

Articles

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