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Circular Economy in the Manufacture of Bioplastics: From Sewage Sludge to Plastic Bottle

ELMAC-Ingenieria, Dirección, 33203 Gijón, Spain
School of Mining, Energy and Materials Engineering, University of Oviedo, Independencia, 13, 33003 Oviedo, Spain
Author to whom correspondence should be addressed.
Presented at the 2nd International Research Conference on Sustainable Energy, Engineering, Materials and Environment (IRCSEEME), Mieres, Spain, 25–27 July 2018.
Proceedings 2018, 2(23), 1425;
Published: 26 November 2018
The main objective of this study is the potential evaluation of obtaining bioplastics through biodegradable polyesters synthesized by bacteria, present in the anaerobic treatment of urban and industrial wastewater, which have a series of characteristics to consider as their processing as material bioplastic In Asturias, more than 70,000 tons of sludge are produced and, by applying circular economy criteria and technologies for the production of bioplastics from wastewater, a synergy could be obtained that would allow the reuse of sludge by valorization as raw material. to produce bioplastics. This valorization can be carried out mainly through the combination of two technologies, on the one hand, anaerobic fermentation to produce volatile fatty acids and on the other the generation of bacterial populations that produce Polyhydroxyalkanoates (PHA’s). The PHAs are obtained from the microorganisms present in the sludge generated in the wastewater treatment process.
Keywords: bioplastics; PHA; sludge; VFA; water treatment plant bioplastics; PHA; sludge; VFA; water treatment plant
MDPI and ACS Style

García, N.A.; Álvarez, F.B.; Sierra, A.L.M. Circular Economy in the Manufacture of Bioplastics: From Sewage Sludge to Plastic Bottle. Proceedings 2018, 2, 1425.

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