CEST Proceedings are published under the ISSN 2944-9820.
An innovative and eco-friendly approach to recover gold (and copper) from gold fingers of waste printed circuit boards
Sousa P., Martelo L., Bastos M., Marques A., (Corresponding) Soares H.
Topic:
Sustainable supply of raw materials
Recycling waste printed circuit boards (WPCBs) is a complex problem worldwide and sustainable technologies are required. So, this work aims to offer an innovative (an European patent was submitted, EP 20216239.2 1) and more sustainable solution to recover high-value materials (gold and copper) from...Read more
Keywords:
E-waste, Printed circuit board recycling, Physical and chemical processes; Gold and copper recovery.
Strategies for the improvement of VFAs recovery in the nanofiltration process within the circular economy framework
Pervez M., Uwineza C., Sapmaz T., Mahboubi A., Hasan ., Cai Y., Zarra T., Belgiorno V., Taherzadeh ., (Corresponding) Naddeo V.
Topic:
Food waste
Over the past decades, the anaerobic digestion (AD) process has been employed as a potential medium to produce valuable resources from the waste-based feedstock. Moreover, the use of AD technology can generate not only resources, but it also creates an avenue for useful chemicals recovery to...Read more
An overview of pressure-driven membrane technologies for a sustainable recovery of volatile fatty acids (VFAs)
Pervez M., Mahboubi A., Hasan S., Cai Y., Zarra T., Belgiorno V., Taherzadeh M., (Corresponding) Naddeo V.
Topic:
Food waste
Currently, petroleum-based volatile fatty acids (VFAs) sources are not acceptable towards sustainable development goals (SDG); therefore, biobased-derived VFAs are of interest. Anaerobic digestion has been identified as a useful technology for the production of biobased VFAs from organic waste...Read more
Applying solar distillation for the sustainable management of olive mill wastewater
Mastoras P., Gatidou G., Vakalis S., Fountoulakis M., Haralampopoulos D., (Corresponding) Stasinakis A.
Topic:
Wastewater treatment
Olive mill wastewater (OMWW) is a major by-product of olive oil production industry. Its chemical characteristics (high concentrations of COD and TSS, low pH value, existence of total phenols at the range of some ppm) does not allow its efficient treatment using conventional physiochemical or...Read more
Keywords:
olive mill wastewater, solar distillation, polyphenolic compounds, antioxidants, recovery
Catalytic reduction of Cr(VI) using recovered Silicon from end-of-life photovoltaic panels as a catalyst
Pavlopoulos C., Kyriakopoulou V., (Corresponding) Papadopoulou K., Lyberatos G.
Topic:
Wastewater treatment
As installed photovoltaic panels (PVP) approach their end of life, the need for a sustainable recovery plan becomes imperative. This work aims to reuse Silicon from End-of-Life PVP as a potential catalyst/photocatalyst for wastewater treatment. PVPs were pretreated thermally (550°C for 30 min). The...Read more
The Lombard Dairy Industry in the Perspective of Circular Economy: Degree of Application and Improvement Potentials
(Corresponding) Mehner E., Fantin V., Pizzichini D., Vergalli S., Vaccari M.
Topic:
Circular economy and industrial symbiosis
Circular Economy is an economic concept, aiming at increasing resource efficiency, recirculating resource streams and minimizing waste of an industrial process. Thereby, ideally, environmental impacts can be decreased while the profitability of the considered process is improved. This concept is...Read more
Can the seasonal variability affect the BMP of fruit and vegetable waste?
(Corresponding) Scotto di Perta E., Lamboglia R., Cesaro A., Frunzo L., Esposito G., Papirio S.
Topic:
Food waste
Fruit and vegetable waste (FVW), largely produced in open markets, is characterized by highly putrescible materials, thus being a proper substrate for anaerobic digestion. This study investigated the effect of the seasonal variation of FVW, on the biochemical methane potential (BMP). To this end,...Read more
Keywords:
anaerobic digestion, open market waste, methane, energy recovery
Bioleaching of valuable elements from red mud using autochthonous biomass
(Corresponding) Cozzolino A., Cappai G., Cara S., Milia S., Carucci A.
Topic:
Circular economy and industrial symbiosis
Red mud (RM) is the main residue produced by the alkaline extraction of aluminum from bauxite, and it contains valuable metals (e.g., iron, aluminum, titanium, silicon). Aim of this research was to investigate the biologically induced leaching of valuable elements from RM using autochthonous...Read more
Keywords:
bioleaching, circular economy, metals recovery, red mud.
Optimum technical operating conditions and treatments for the production of high-purity struvite fertilizer from livestock wastewater.
Kallikazarou N., Koutsokeras L., Constantinide E., Constantinides G., (Corresponding) Antoniou M.
Topic:
Biowaste
Inadequate treatment of nutrient-rich waste streams originating from human activities such as agriculture, animal breeding, urbanization, and industrialization causes an array of environmental problems. Among them are eutrophication of surface water, nutrients and pathogens leaching into...Read more
Waste Printed Circuit Boards (WPCBs) as a potential source for the recovery of rare earth elements through bioleaching.
(Corresponding) Gonzalez Baez A., Pantoja Muñoz L., Garelick H., Purchase D.
Topic:
Electric and electronic waste
Rare earth elements (e.g., neodymium, dysprosium and praseodymium) have contributed to the miniaturization, energy efficiency, durability, and high speed of many technology gadgets. Due to their electric conductivity, magnetic, luminescence and optical properties, rare earth elements (REE) are...Read more
