Production and degradation of polyhydroxyalkanoates in waste environment
Journal Article
·
· Waste Management
- Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of)
Polyhydroxyalkanoates (PHAs) are energy/carbon storage materials accumulated under unfavorable growth condition in the presence of excess carbon source. PHAs are attracting much attention as substitute for non-degradable petrochemically derived plastics because of their similar material properties to conventional plastics and complete biodegradability under natural environment upon disposal. In this paper, PHA production and degradation in waste environment as well as its role in biological phosphorus removal are reviewed. In biological phosphorus removal process, bacteria accumulating polyphosphate (poly P) uptake carbon substrates and accumulate these as PHA by utilizing energy from breaking down poly P under anaerobic conditions. In the following aerobic condition, accumulated PHA is utilized for energy generation and for the regeneration of poly P. PHA production from waste has been investigated in order to utilize abundant organic compounds in waste water. Since PHA content and PHA productivity that can be obtained are rather low, PHA production from waste product should be considered as a coupled process for reducing the amount of organic waste. PHAs can be rapidly degraded to completion in municipal anaerobic sludge by various microorganisms.
- OSTI ID:
- 343549
- Journal Information:
- Waste Management, Journal Name: Waste Management Journal Issue: 2 Vol. 19; ISSN WAMAE2; ISSN 0956-053X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Quantitative measurement of the growth rate of the PHA-producing photosynthetic bacterium Rhodocyclus gelatinous CBS-2[PolyHydroxyAlkanoate]
Pseudomonas Species as Producers of Eco-friendly Polyhydroxyalkanoates
Anaerobic phosphate release from activated sludge with enhanced biological phosphorus removal. A possible mechanism of intracellular pH control
Conference
·
Thu Jul 01 00:00:00 EDT 1999
·
OSTI ID:20030617
Pseudomonas Species as Producers of Eco-friendly Polyhydroxyalkanoates
Journal Article
·
Sat Jun 15 00:00:00 EDT 2019
· Journal of Polymers and the Environment
·
OSTI ID:22977129
Anaerobic phosphate release from activated sludge with enhanced biological phosphorus removal. A possible mechanism of intracellular pH control
Journal Article
·
Sat Jun 05 00:00:00 EDT 1999
· Biotechnology and Bioengineering
·
OSTI ID:347687