Economic and environmental analysis of PHAs production process

Economic and environmental analysis of PHAs production process Following the growing demand to improve both economic and environmental performance of PHAs production, the research focused on the evaluation of the economic and environmental performance of PHAs production process via aqueous two-phase extraction (ATPE). Thus, the process analysis of two processes with different PHAs purification and recovery strategies (which are with and without thermoseparating ATPE as primary purification step) was performed. Using the basis of 9000 tons PHAs production per year and 7920 operating hours, the process with thermoseparating ATPE as primary purification step standout in terms of both economic and environmental performance. PHA production cost of 5.77 US$/kg with a payback period of fewer than 4 years and ROI of 25.2% was achieved. The results showed that most of operating cost is contributed by facility-dependent cost and raw material cost, while the main contributor to raw material cost is carbon source. The insight from sensitivity analysis has demonstrated that the economic performance is sensitive to the fluctuation in surfactant cost. This proved that utilizing thermoseparating ATPE as primary recovery step not only helps to reduce chemical consumption, it also minimizes downstream equipment cost and wastewater treatment cost. Clean Technologies and Environmental Policy Springer Journals

Economic and environmental analysis of PHAs production process

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Springer Berlin Heidelberg
Copyright © 2017 by Springer-Verlag GmbH Germany
Environment; Sustainable Development; Industrial Chemistry/Chemical Engineering; Industrial and Production Engineering; Environmental Engineering/Biotechnology; Environmental Economics
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