title: Polyhydroxyalkanoate production as a side stream process on a municipal waste water treatment plant.
abstract: This work describes the production of polyhydroxyalkanoates (PHAs) as a side stream process on a municipal waste water treatment plant (WWTP) at different operation conditions. Therefore various tests were conducted regarding a high PHA production and stable PHA composition. Influence of substrate concentration, temperature, pH and cycle time of an installed feast/famine-regime were investigated. The results demonstrated a strong influence of the operating conditions on the PHA production. Lower substrate concentration, 20°C, neutral pH-value and a 24h cycle time are preferable for high PHA production up to 28.4% of cell dry weight (CDW). PHA composition was influenced by cycle time only and a stable PHA composition was reached.
authors.affiliation: University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, Bandtaele 2, D-70569 Stuttgart, Germany. Electronic address: timo.pittmann@iswa.uni-stuttgart.de.
authors.forename: T
authors.initials: T
authors.lastname: Pittmann
authors.affiliation: University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, Bandtaele 2, D-70569 Stuttgart, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Steinmetz
mesh_terms: D001704:Biopolymers / Q000096:biosynthesis; D019149:Bioreactors; D002947:Cities; D006863:Hydrogen-Ion Concentration; D054813:Polyhydroxyalkanoates / Q000096:biosynthesis*; D013696:Temperature; D013997:Time Factors; D062065:Wastewater / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D001704:Biopolymers; D054813:Polyhydroxyalkanoates; D062065:Wastewater
keywords: Bioplastic; Biopolymer; PHA; Polyhydroxyalkanoates; Waste water