The Supporting Information is available free of charge on the ACS Publications website at DOI: https://doi.org/10.1021/acs.est.5b01776This study was carried out within the framework of the European projects LIVE WASTE (LIFE 12 ENV/CY/000544)

Fatone, F

Frison, N

Katsou, E

Malamis, S

Oehmen, A

Environmental Science & Technology

Frison, Nicola

Katsou, Evina

Malamis, Simos

Oehmen, Adrian

FATONE, FRANCESCO

IRIS UniversitÃ  Politecnica delle Marche

Development of a Novel Process Integrating the Treatment of Sludge Reject Water and the Production of Polyhydroxyalkanoates (PHAs)

Brunel University Research Archive

Polyhydroxyalkanoates (PHAs) from
activated sludge and renewable
organic material can become an alternative product to traditional
plastics since they are biodegradable and are produced from renewable
sources. In this work, the selection of PHA storing bacteria was integrated
with the side stream treatment of nitrogen removal via nitrite from
sewage sludge reject water. A novel process was developed and applied
where the alternation of aerobic-feast and anoxic-famine conditions
accomplished the selection of PHA storing biomass and nitrogen removal
via nitrite. Two configurations were examined: in configuration 1
the ammonium conversion to nitrite occurred in the same reactor in
which the PHA selection process occurred, while in configuration 2
two separate reactors were used. The results showed that the selection
of PHA storing biomass was successful in both configurations, while
the nitrogen removal efficiency was much higher (almost 90%) in configuration
2. The PHA selection degree was evaluated by the volatile fatty acid
(VFA) uptake rate (−qVFAs) and
the PHA production rate (qPHA), which were 239 ± 74 and 89 ±
7 mg of COD per gram of active biomass (Xa) per hour, respectively. The characterization of the biopolymer
recovered after the accumulation step, showed that it was composed
of 3-hydroxybutyrate (3HB) (60%) and 3-hydroxyvalerate (3HV) (40%).
The properties associated with the produced PHA suggest that they
are suitable for thermoplastic processing

Nicola Frison (1531690)

Evina Katsou (1531687)

Simos Malamis (1531684)

Adrian Oehmen (88118)

Francesco Fatone (1531693)

FigShare

Development
of a Novel Process Integrating the Treatment
of Sludge Reject Water and the Production of Polyhydroxyalkanoates
(PHAs)

Nicola Frison

Evina Katsou

Simos Malamis

Adrian Oehmen

Francesco Fatone

Crossref

Fatone, Francesco

University of Queensland eSpace

Development of a novel process integrating the treatment of sludge reject water and the production of polyhydroxyalkanoates (PHAs)

Polyhydroxyalkanoates (PHAs) from activated sludge and renewable organic material can become an alternative product to traditional plastics since they are biodegradable and are produced from renewable sources. In this work, the selection of PHA storing bacteria was integrated with the side stream treatment of nitrogen removal via nitrite from sewage sludge reject water. A novel process was developed and applied where the alternation of aerobic-feast and anoxic-famine conditions accomplished the selection of PHA storing biomass and nitrogen removal via nitrite. Two configurations were examined: in configuration 1 the ammonium conversion to nitrite occurred in the same reactor in which the PHA selection process occurred, while in configuration 2 two separate reactors were used. The results showed that the selection of PHA storing biomass was successful in both configurations, while the nitrogen removal efficiency was much higher (almost 90%) in configuration 2. The PHA selection degree was evaluated by the volatile fatty acid (VFA) uptake rate (-qVFAs) and the PHA production rate (qPHA), which were 239 ± 74 and 89 ± 7 mg of COD per gram of active biomass (Xa) per hour, respectively. The characterization of the biopolymer recovered after the accumulation step, showed that it was composed of 3-hydroxybutyrate (3HB) (60%) and 3-hydroxyvalerate (3HV) (40%). The properties associated with the produced PHA suggest that they are suitable for thermoplastic processing

FRISON, Nicola

Katsou, Evangelia

Malamis, Symeon Alexandros

FATONE, Francesco

Catalogo dei prodotti della ricerca

https://figshare.com/articles/Development_of_a_Novel_Process_Integrating_the_Treatment_of_Sludge_Reject_Water_and_the_Production_of_Polyhydroxyalkanoates_PHAs_/2131684

Development of a Novel Process Integrating the Treatment of Sludge Reject Water and the Production of Polyhydroxyalkanoates (PHAs)

Abstract

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IRIS UniversitÃ Politecnica delle Marche

Brunel University Research Archive

FigShare

Crossref

University of Queensland eSpace

Catalogo dei prodotti della ricerca