Ricerc@Sapienza

Recycling Technologies: Paper Fiber
Waste Paper Characteristics
Waste Paper Recycling Technologies
Recycling Technologies: Glass
Cullet Contaminants
Cullet Recycling Technologies
Recycling Technologies: Metals
Ferrous Metals
Ferrous Metal Recycling Technologies
Nonferrous Metals
Nonferrous Metal Recycling Technologies
Recycling Technologies: Plastics
Waste Plastic Sources and Characteristics
Waste Plastic Recycling Technologies
Recycling Technologies: Fibers (Textiles and Carpets)
Textiles

Polyhydroxyalkanoates (PHA) are completely biodegradable polyesters and it is well known the ability of mixed microbial cultures (MMC) to produce them by using renewable resources (e.g. waste organic streams) as feedstock. MMC-PHA production typically involves a multi-stage process including the selection of PHA-storing microorganisms from the mixed culture. This usually occurs in sequencing batch reactors (SBR) operated under dynamic feeding regime whereby microorganisms undergo periods of high (feast) and low or none (famine) concentrations of external organic substrate.

Municipal solid waste (MSW) is one of the residue materials considered as a potential
source for biofuel production in the EU Renewable Energy Directive (RED), which establishes
that a minimum of 10% biofuels for transport shall be used in every Member State
by 2020, thus promoting advanced biofuel from waste. A high-temperature gasification
technology transforms MSW into a syngas rich in hydrogen and carbon monoxide and
free of tar, char and harmful compounds like dioxins appearing as a promising root for