Veolia Water Solutions & Technologies Support

The University of Queensland

Peter Stig Tomas Johansson

Alan Gideon Werker

Patric Jannasch

Per Olof Gösta Magnusson

Franciscus Hubertus Jacobus Maurer

Mónica Vanessa Arcos Hernández

Bronwyn Glenice Laycock

Steven Pratt

The invention is directed to a method of increasing the chemical and/or thermal stability of PHA in biomass where the biomass is contained within mixed liquor, and wherein the mixed liquor is treated by a combination of removing water from the mixed liquor and pH adjustment of the mixed liquor or maintenance of the pH of the mixed liquor within a selected pH range, and wherein the method includes reducing the pH of the mixed liquor below 6, or maintaining the pH of the mixed liquor below 6 for a selected period of time, and wherein the pH adjustment of the mixed liquor to below 6 or the maintenance of the pH of the mixed liquor below 6 gives rise to an increase in chemical and/or thermal stability of the PHA in the biomass.

Method for recovery of stabilized polyhydroxyalkanoates from biomass that has been used to treat organic waste

A method of enhancing mechanical properties of compounds formed with polyhydroxyalkanoates (PHA) recovered by biomass where the biomass comprises PHA and non-PHA materials. The method includes dissolving the PHA and non-PHA materials in a solution and separating the PHA and non-PHA materials from the solution. Further, the method includes compounding the separated PHA material and at least some of the separated non-PHA material into a compounded plastic having improved mechanical properties.

Method of producing polyhydroxyalkanoate compounded plastics having improved mechanical properties

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Lund, Sweden

Peter Stig Tomas Johansson