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PHA granule formation and degradation by Cupriavidus necator under different nutritional conditions
(Wiley VCH Verlag, 2021-08)
Polyhydroxyalkanoates (PHA) are polymers produced by microorganisms with increasing commercialization potential; Cupriavidus necator has been the model microorganism to research PHA production. Despite many contributions ...
Biomass aggregation influences NaN3 short-term effects on anammoxbacteria activity.
The main bottleneck to maintain the long-term stability of the partial nitritation-anammox processes, especially those operated at low temperatures and nitrogen concentrations, is the undesirable development of nitrite ...
Effects of granule-associated protein PhaP on glycerol-dependent growth and polymer production in poly(3-hydroxybutyrate)-producing Escherichia coli
(American Society for Microbiology, 2007-12)
Polyhydroxyalkanoates (PHAs) are accumulated as intracellular granules by many bacteria under unfavorable conditions, enhancing their fitness and stress resistance. Poly(3-hydroxybutyrate) (PHB) is the most widespread and ...
Partial Nitritation-Anammox Granules: Short-Term Inhibitory Effects of Seven Metals on Anammox Activity.
The inhibitory effect of seven different metals on the specific anammox activity of granular biomass, collected from a single stage partial nitritation/anammox reactor, was evaluated. The concentration of each metal that ...
Effect of impeller type and mechanical agitation on the mass transfer and power consumption aspects of ASBR operation treating synthetic wastewater
(ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2009)
The effect of flow type and rotor speed was investigated in a round-bottom reactor with 5 L useful volume containing 2.0 L of granular biomass. The reactor treated 2.0 L of synthetic wastewater with a concentration of 800 ...
Influence of feed time and sulfate load on the organic and sulfate removal in an ASBR
(ELSEVIER SCI LTD, 2010)
The removal of sulfate and organic matter was assessed in an ASBR, which treated wastewater containing 500 mg COD L(-1) (3 g COD L(-1) d(-1)) in 8 h-cycles at 30 degrees C. The wastewater was enriched with sulfate at ...
Biomass ashes to produce an alternative alkaline activator for alkali-activated cements
(2022-02-01)
In the last decade, herbaceous and agricultural biomass have been used as an alternative energy source. As consequence, large amounts of residual ashes containing potassium (potassium-rich ashes) have been generated. Olive ...
MODIFICACIÓN DEL DISEÑO DE UN REACTOR ANAEROBIO DE FLUJO ASCENDENTE DE LECHO GRANULAR PARA MEJORAR EL CONTACTO SUSTRATO – BIOMASA
(2012-07-02)
This thesis entitled "Changing the design of a reactor upflow anaerobic granular bed to improve the contact substrate - biomass," was conducted with the aim of increasing the contact time between substrate and biomass, ...