Methodological issues in LCA of wastewater treatment combined with PHA biopolymer production
Conference contribution, 2013

Production of polyhydroxyalkanoates (PHAs) by mixed microbial cultures utilising the organic content of wastewaters is one of the technologies studied in the EU project ROUTES. When comparing the life-cycle environmental impacts of simultaneous wastewater treatment and production of PHA-rich biomass to traditional wastewater and solids treatment, the handling of this multi-functionality is critical for the results. Only one LCA of such a system has been found in the literature. The current paper identifies substitution and allocation based on chemical oxygen demand removal as two possible options to account for the multi-functionality of the system. Examples based on literature data were used to show that for global warming potential, the choice of allocation method can substantially affect the results.

allocation

bio-production

polyhydroxyalkanoates

Life cycle assessment

system boundaries

Author

Sara Heimersson

Chalmers, Chemical and Biological Engineering, Chemical Environmental Science

Magdalena Svanström

Chalmers, Chemical and Biological Engineering, Chemical Environmental Science

Fernando Morgan-Sagastume

Gregory Peters

Chalmers, Chemical and Biological Engineering, Chemical Environmental Science

Alan Werker

The proceedings of The 6th International Conference on Life Cycle Management

Driving Forces

Sustainable development

Subject Categories

Water Engineering

Other Environmental Engineering

Environmental Management

Environmental Analysis and Construction Information Technology

More information

Created

10/8/2017