Application of Polyhydroxyalkanoates (PHA) in Water Pollution Control
Dr. K. Venkata Krishna
Assistant Professor of Chemistry, Government Degree College for Women (A), Nalgonda, Telangana, India
58-62
Vol: 12, Issue: 3, 2022
Receiving Date:
2022-09-10
Acceptance Date:
2022-09-27
Publication Date:
2022-10-03
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http://doi.org/10.37648/ijrst.v12i03.010
Abstract
Polyhydroxyalkanoates are biodegradable polyesters made by bacteria. These polymers help control water pollution in two ways. First, mixed microbial cultures produce them from wastewater organic matter, turning a waste stream into a useful material. Second, the finished polymer and its composites act as adsorbents for dyes and heavy metals or as filter media that trap bacteria. This paper describes the structure of PHA, the biosynthesis reactions, production from real wastewaters, and direct uses in treatment systems. Tables list removal efficiencies and production yields. Equations show the key steps. The approach reduces plastic pollution while cleaning water when operators match the feedstock and process conditions to the local waste stream.
Keywords:
polyhydroxyalkanoates; PHA; PHB; wastewater treatment; biosorption; biodegradable polymers; resource recovery
References
- Mannina, G., Presti, D., Montiel-Jarillo, G., Carrera, J., & Suárez-Ojeda, M. E. (2020). Recovery of polyhydroxyalkanoates (PHAs) from wastewater: A review. Bioresource Technology, 297, 122478.
- Amadu, A. A., Qiu, S., Ge, S., Addico, G. N. D., Ameka, G. K., Yu, Z., Xia, W., Abbew, A. W., Shao, D., Champagne, P., & Wang, S. (2021). A review of biopolymer (Poly-β-hydroxybutyrate) synthesis in microbes cultivated on wastewater. Science of the Total Environment, 756, 143729.
- Sagong, H. Y., Son, H. F., Choi, S. Y., Lee, S. Y., & Kim, K. J. (2018). Structural insights into polyhydroxyalkanoates biosynthesis. Trends in Biochemical Sciences, 43(10), 790–805.
- Madison, L. L., & Huisman, G. W. (1999). Metabolic engineering of poly(3-hydroxyalkanoates): From DNA to plastic. Microbiology and Molecular Biology Reviews, 63(1), 21–53.
- Sudesh, K., Abe, H., & Doi, Y. (2000). Synthesis, structure and properties of polyhydroxyalkanoates: Biological polyesters. Progress in Polymer Science, 25(10), 1503–1555.
- Jendrossek, D., & Handrick, R. (2002). Microbial degradation of polyhydroxyalkanoates. Annual Review of Microbiology, 56, 403–432.
- Albuquerque, M. G. E., Torres, C. A. V., & Reis, M. A. M. (2010). Polyhydroxyalkanoate (PHA) production by a mixed microbial culture using sugar molasses: Effect of the influent substrate concentration on culture selection. Water Research, 44(11), 3419–3433
- Valentino, F., Morgan-Sagastume, F., Campanari, S., Villano, M., Werker, A., & Majone, M. (2017). Carbon recovery from wastewater through bioconversion into biodegradable polymers. New Biotechnology, 37, 9–23.
- Morgan-Sagastume, F., Hjort, M., Cirne, D., Gérardin, F., Lacroix, S., Gaval, G., Karabegovic, L., Alexandersson, T., Johansson, P., Karlsson, A., Bengtsson, S., Arcos-Hernández, M. V., Magnusson, P., & Werker, A. (2015). Integrated production of polyhydroxyalkanoates (PHAs) with municipal wastewater and sludge treatment at pilot scale. Bioresource Technology, 181, 78–89.
- Raza, Z. A., Abid, S., & Banat, I. M. (2018). Polyhydroxyalkanoates: Characteristics, production, recent developments and applications. International Biodeterioration & Biodegradation, 126, 45–56.
- Additional studies on PHA production from mixed cultures and wastewater streams and on PHA-based materials for filtration or adsorption published before March 2021.
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