CASAZZA A. A.

Even though biofuel production from microalgae has become more and more attractive in recent years, it is limited especially by the high cost of microalgae cultivation. However, microalgae can be grown in wastewater in order to reduce their production cost and, at the same time, the polluting impact of wastewaters. Winery wastewaters, which are...

So far, there are few sustainable alternatives to manage the exhausted olive pomace (EOP), a dangerous waste produced by the olive oil sector. In this work, EOP resulting from organosolv pretreatment was submitted to conventional anaerobic digestion (mono-AD) or co-digestion with sewage sludge (co-AD) at different ratios using a pilot-scale...

The use of plastics in the last decades significantly increased, thus plastic recycling processes are needed. Generally, mixtures of plastic materials are disposed together, hence the recovery of the polymeric material is difficult and expensive. Plastic residues could be valorized by thermal degradation processes aimed at recovering energy...

Thermal pyrolysis of Arthrospira platensis biomass was investigated at 450 °C before and after lipid or protein extractions with the aim to valorize the extraction residue. Compositions of biomass before pyrolysis and reaction products were analyzed by FT-IR, GC-MS, TG and SEM analyses. Thermal pyrolysis of biomass without any preliminary...

Two new highly-efficient and eco-friendly biosorbents comprised of magnetite, chitosan and Chlorella vulgaris (MCC) or Arthrospira platensis (MCA) were prepared in such a way to be easily separated and reused for removing different classes of antibiotics such as tetracycline (TC), ciprofloxacin (CIP) and amoxicillin (AMX) from wastewater. They...

Current innovations in microalgae technology include the use of wastewater as a cultivation medium for renewable energy generation and wastewater treatment. In this study, thermal pyrolysis was performed on a co-culture of Chlorella vulgaris and Arthrospira platensis grown in winery wastewater fed continuously into a membrane photobioreactor....

Apple processing industry can be improved by the valorization of its residues. Apple skins could be used for the recovery of high added value compounds for the formulation of new antioxidant products (dietary supplements, cosmetics, drugs). In this study, apple skins from Jonagold cultivar were selected as raw material for an optimization study...

The aim of this study was the investigation of non-destructive lipid extraction from Chlorella vulgaris grown under stress conditions of nutrient limitation and salinity. To select a suitable solvent for extraction, the performances of decane, dodecane and hexadecane were tested based on their effect on lipid extraction and cell viability. The...

The rapid development of urbanization and industrialization leads to the production of large amounts of wastewater all over the world, which could be exploited to grow microalgae, thereby reducing their cultivation costs and making biofuel production more feasible. In this research work, a co-culture of Chlorella vulgaris and Arthrospira...

This study aimed to extract bioactive compounds from tomato waste through ultrasoundassisted extraction (UAE), using ethanol as solvent. Process optimization was carried out by a central composite design of 33 runs for response surface modelling, simultaneously analyzing the effect of temperature (T), time (t), volume (V), liquid‐to‐solid ratio...

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Raw date palm waste was investigated as an adsorbent to remove tetracycline (TC) and ciprofloxacin (CIP) from water. Influence of pH, biosorbent dose, starting antibiotic concentration, contact time, temperature, and concentrations of different salts were examined. The pseudo-second-order model provided the best fit to the experimental data,...

Wine-making process leads to large amounts of wastewater. Winery wastewaters (WWW) are produced from different activities of wine production: washing, transferring and storage operations. Tank cleaning and filtration equipment are responsible for the release of the largest amount of wastewater, whose polluting power is mainly due to both the...

Due to the high content of phenolics and anthocyanins of Hibiscus sabdariffa L. tea and the sensibility of these bioactive compounds, this work aimed to optimize the obtention of microcapsules by spray-drying, using inulin as a carrier agent. Using a Box-Behnken Design, the effects of inlet temperature (130, 150, and 170 & DEG;C), feed flow...

Inorganic mercury was effectively removed from water solutions by means of dry biomass of Arthrospira (Spirulina) platensis as biosorbent. The results obtained at defined pH and biomass concentration as well as variable Hg concentrations were used to estimate biosorption kinetics and isotherm parameters. Biosorption kinetics was best described...

In order to valorize lignin wastes to produce useful aromatic compounds, the thermal degradation pyrolysis of Kraft lignin in the absence of catalysts has been investigated at 350, 450, and 550 °C. The high content of sulfur in the fresh sample led to the formation of S‐containing compounds in products whose evolution in the gas phase was...

Wastewater is one of the critical environmental problems worldwide. In this study, the circular economy concept was applied to winery wastewater that has been considered as a rich source of nutrients for growing edible microalgae to produce a high value protein product. To this end, Chlorella vulgaris and Arthrospira platensis were co-cultured....