Simeone Chianese
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Innovations in Wastewater Treatment Open
The rapid growth of the world population and climate change are two key factors that immensely affect freshwater availability [...]
Exploring 1,3-Dioxolane Extraction of Poly(3-hydroxybutyrate) and Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) from Methylocystis hirsuta and Mixed Methanotrophic Strain: Effect of Biomass-to-Solvent Ratio and Extraction Time Open
The increasing need for biodegradable polymers demands efficient and environmentally friendly extraction methods. In this study, a simple and sustainable method for extracting polyhydroxybutyrate (PHB) and poly(3-hydroxybutyrate-co-3-hydro…
Techno-economic assessment of biopolymer production from methane and volatile fatty acids: effect of the reactor size and biomass concentration on the poly(3-hydroxybutyrate-co-3-hydroxyvalerate) selling price Open
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) is a biobased and biodegradable polymer that could efficiently replace fossil-based plastics. However, its widespread deployment is slowed down by the high production cost. In this work, the tec…
Polyhydroxyalkanoate recovery overview: properties, characterizations, and extraction strategies Open
Due to their excellent properties, polyhydroxyalkanoates are gaining increasing recognition in the biodegradable polymer market. These biogenic polyesters are characterized by high biodegradability in multiple environments, overcoming the …
Production of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) from methane and volatile fatty acids: properties, metabolic routes and current trend Open
Polyhydroxyalkanoates (PHAs) are biobased and biodegradable polymers that could effectively replace fossil-based and non-biodegradable plastics. However, their production is currently limited by the high production costs, mainly due to the…
Exploring New Strategies for Optimizing the Production of Poly(3-hydroxybutyrate-<i>co</i>-3-hydroxyvalerate) from Methane and VFAs in Synthetic Cocultures and Mixed Methanotrophic Consortia Open
In this work, the potential of a synthetic coculture and a mixed methanotrophic consortium to synthesize poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) from renewable and waste-based feedstocks was assessed batchwise. Methylocystis pa…
Autogenerative high-pressure anaerobic digestion modelling of volatile fatty acids: Effect of pressure variation and substrate composition on volumetric mass transfer coefficients, kinetic parameters, and process performance Open
Pressurised anaerobic digestion is a valuable process that allows the production of biogas with a high methane content, reducing the energy costs for the biogas upgrading and injection into the distribution grid. This technology has attrac…
Assessing the performance of synthetic co-cultures during the conversion of methane into Poly(3-hydroxybutyrate) Open
Synthetic co-cultures can enhance pollutant bioconversion performance through synergistic effects among co-existing species. In this study, the potential of Methylocystis hirsuta and Methylocystis parvus to support poly(3-hydroxybutyrate) …
An innovative approach for atrazine electrochemical oxidation modelling: Process parameter effect, intermediate formation and kinetic constant assessment Open
Water reuse for irrigation activities is becoming a crucial worldwide challenge due to the depletion of water sources. Anyway, agricultural drainage can potentially contain dangerous contaminants such as metals, pesticides, and herbicides,…
The co-conversion of methane and mixtures of volatile fatty acids into poly(3-hydroxybutyrate-co-3-hydroxyvalerate) expands the potential of an integrated biorefinery Open
In this work, the potential of Methylocystis hirsuta to simultaneously use methane and volatile fatty acids mixtures for triggering PHBV accumulation was assessed for the first time batchwise. Biotic controls carried out with CH4 alone con…
An innovative and sustainable process for producing poly(3-hydroxybutyrate-co-3-hydroxyvalerate): simulating volatile fatty acid role and biodegradability Open
Renewable resources, such as biogas and volatile fatty acids from organic substrate digestion, are used to generate the poly(3-hydroxybutyrate-co-3-hydroxyvalerate), a biopolymer with mechanical and thermal characteristics comparable with …
Trimethoprim removal from wastewater: Adsorption and electro-oxidation comparative case study Open
Trimethoprim (TMP) is among the emerging pollutants that cause harmful effects on the aquatic environment and human health if not accurately controlled. This antibiotic is one of the most regularly administered drugs, thus, its contaminati…
Application of Electrochemical Oxidation for Water and Wastewater Treatment: An Overview Open
In recent years, the discharge of various emerging pollutants, chemicals, and dyes in water and wastewater has represented one of the prominent human problems. Since water pollution is directly related to human health, highly resistant and…
Application of Electrochemical Oxidation for Water and Wastewater Treatment: An Overview Open
In recent years, the discharge of various emerging pollutants, chemicals and dyes in water and wastewater has represented one of the prominent human problems. Since water pollution is directly related to human health, highly resistant and …
Electrochemical Removal of Nitrogen Compounds from a Simulated Saline Wastewater Open
In the last few years, many industrial sectors have generated and discharged large volumes of saline wastewater into the environment. In the present work, the electrochemical removal of nitrogen compounds from synthetic saline wastewater w…
Sustainable Process for the Production of Poly(3-hydroxybutyrate-<i>co</i>-3-hydroxyvalerate) from Renewable Resources: A Simulation Study Open
Bacterially produced polyhydroxyalkanoates are valuable substitutes for petrochemical plastics, but their current production capacities are very scarce. Producing poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB-co-HV) from methane and od…
Process simulation of hydrothermal carbonization of digestate from energetic perspectives in Aspen Plus Open
Digestate, a nutrient-rich substance, is a potential resource of income in biogas plants. It can be utilized as a soil amendment and solid biofuel due to containing inorganic and organic compounds. However, concerning the environmental reg…
Enhancing Poly(3-hydroxybutyrate) Production Through the Optimization of Reactor Geometry Open
Poly(3-hydroxybutyrate) (PHB) is a thermoplastic polyester that can be synthesised by many bacteria under unfavourable growth conditions. Among all its properties, biodegradability is the most attractive since it makes PHB a potential alte…
Alternative Polyhydroxybutyrate Solvent Extraction: a Process Simulation Study Open
Polyhydroxybutyrate (PHB) is a possible sustainable alternative to fossil-based plastic, today the cause of one of the primary forms of pollution in the world, since it is biodegradable, recyclable and compostable. Furthermore, PHB can be …
Elucidating the Effects of Superficial Gas Velocity on Poly(3-hydroxybutyrate) Production Open
Polyhydroxyalkanoates (PHAs) are a very promising alternative to traditional plastic materials since they are biobased and can degrade in soil, water, and sediments. Among all the existing PHAs, Poly-3-hydroxybutyrate (PHB) is the most wel…
Poly(3-hydroxybutyrate) production from methane in bubble column bioreactors: Process simulation and design optimization Open
The pressing problem posed by plastic pollution has led to other, environmentally friendly alternatives, such as polyhydroxyalkanoates. This work proposes an innovative process to produce poly(3-hydroxybutyrate) by replacing expensive subs…
View article: Risk analysis of a supercritical fluid extraction plant affected by a gas release using a commercial software
Risk analysis of a supercritical fluid extraction plant affected by a gas release using a commercial software Open
This work presents a risk analysis of a plant that uses supercritical fluid extraction technology with carbon dioxide as a solvent to obtain bioproducts from microalgae. Given the high pressure at which it operates, the extraction plant ca…