Francesco Veglio

Francesco Veglio
Università degli Studi dell'Aquila | Università dell'Aquila · Department of Industrial and Information Engineering and Economics

Chemical Engineering

About

334
Publications
96,781
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
10,740
Citations
Introduction
a) Development of hydrometalurgical processes to recover precious, base metalts and rare earth (Projetc FENIX, HydroWEEE demo and HydroWEEE ) b) Treatment of industrial wastewaters of electronic industry: pilot plant test (LIFE BITMAPS)
Additional affiliations
March 2003 - present
Università degli Studi dell'Aquila
Position
  • Professor (Full)
Description
  • Actually I am in the new Department: Dipartimento di Ingegneria Industriale e dell'Informazione e di Economia
November 1998 - March 2003
Università degli Studi di Genova
Position
  • Professor (Associate)
August 1992 - October 1998
Università degli Studi dell'Aquila
Position
  • Research Assistant
Description
  • After this date I was to Genoa University as Asscoiate Professor until March 2003
Education
October 1981 - July 1987
Università degli Studi dell'Aquila
Field of study
  • Chemical Engineering

Publications

Publications (334)
Article
The present work aims to describe and review the available technologies and the recent advancements in treating industrial wastewater containing tetramethylammonium hydroxide (TMAH). It is a quaternary ammonium salt and widely used in the microelectronics industry; this kind of company produces large quantities of wastewater containing TMAH. The ex...
Article
Full-text available
The current paper presents an innovative hydrometallurgical methodology for recovery of precious metals from different waste streams. The used hydrometallurgical process, which has been already patented (Birloaga and Francesco Veglio, 2019), consists of a single leaching system (HCl, H2O2 and C2H4O2) of all elements and then selective recovery of e...
Article
This study compared the sustainability of two recycling treatments of fluorescent powders aimed at recovering rare earths. The analysis has been performed to evaluate the environmental impacts and economic aspects by using Life Cycle Assessment (LCA) and Life Cycle Cost (LCC). The first process includes a thermal pretreatment at 950°C of powders, f...
Article
Full-text available
TMAH is quaternary ammonium salt, consists of a methylated nitrogen molecule, and is widely used in the electronics industry as a developer and silicon etching agent. This substance is toxic and fatal if ingested. It can also cause skin burns, eye damage, and organ damage. Moreover, TMAH exhibits long-lasting toxicity to aquatic systems. Despite th...
Article
Full-text available
The article reports the preliminary results obtained in a pilot plant that treats a spent tetramethylammonium hydroxide (TMAH) solution, a typical chemical compound used in the microelectronics industry and massively present in wastewaters. The plant is based on three aerobic bioreactors in series, fed by a real TMAH solution effluent from the semi...
Chapter
Full-text available
In order to furtherly proceed with the recycling of raw materials from e-wastes, PCBs must be treated in a hydrometallurgical process able to extract useful materials from them. This chapter presents some details of the hydrometallurgical pilot plant developed in FENIX.
Article
Full-text available
Rare earth elements (REEs), independently by the economic value, have a strategic importance and are involved, as critical materials, in the competition for their supply. An innovative process with the introduction of a preliminary physicochemical treatment was proposed. The mechanical activation of waste of fluorescent powders was performed by a v...
Article
Full-text available
The present paper is focused on the extraction of gold from high-grade e-waste, i.e., spent electronic connectors and plates, by leaching and electrowinning. These connectors are usually made up of an alloy covered by a layer of gold; sometimes, in some of them, a plastic part is also present. The applied leaching system consisted of an acid soluti...
Article
Full-text available
Producing wine entails the consumption of large quantities of fresh water, and consequently the production of large quantities of wastewater the treatability of which becomes increasingly difficult as purification standards get stringent, year after year. The problem is in the presence of aldehydes, phenolic compounds and detergents which are not e...
Article
Full-text available
Typical methods for the treatment of waste pickling solutions include precipitation by alkaline reagents, most commonly calcium hydroxide. As a result, large volumes of galvanic sludge form, containing iron, calcium, sulphates, and a relatively small quantity of zinc (<20%), making Zn recovery not profitable. In summary, state-of-the-art Zn galvani...
Article
a b s t r a c t Xanthate is a widely common pollutant in wastewaters of mineral industries. The removal of ethyl xanthate (EX–), the most widely used xanthates in mineral industries, from aqueous solutions was studied by activated carbon adsorption as the clean and cost-effective industrial wastewater treatment technology. The characterization of a...
Article
This study uses Life Cycle Assessment (LCA) and Life Cycle Cost (LCC) to compare three process design alternatives for treating wastewater from galvanic industry. The proposed processes have been developed in according to a zero-liquid discharge, ZLD, approach and included reverse osmosis for the concentration, evaporation and crystallization of sa...
Article
This study compared the sustainability of six alternatives for the treatment of industrial wastewater from a gasifier, considering both environmental and economic aspects by the approaches of: uses Life Cycle Assessment (LCA) and Life Cycle Cost (LCC). The processes have been developed under the zero liquid discharge approach and included a chemica...
Article
The feed ore properties can seriously affect the success of autogenous (AG) mill operation in terms of many criteria such as production rate, product quality and energy consumption, since the grinding media in an AG mill derive from the feed ore itself. In this research, the feed ore properties including hardness and particle size distribution was...
Article
In the present study, the potentiality of hydrodynamic cavitation (HC) for the degradation of methyl orange from synthetic aqueous solutions is presented. Hydrodynamic cavitation was set up at laboratory scale using a Venturi tube. Solutions of methyl orange (MO) were subjected to cavitation in order to investigate the efficiency and the potential...
Article
Full-text available
The textile industry is a source of significant amounts of cellulosic waste that can be pro-cessed into promising sorbents. The aim of study was understanding the adsorption behavior of metal ions on cellulose surfaces obtained from cellulose textile waste of light industry. Previous studies have shown that unmodified cellulose-based ion exchange r...
Article
Full-text available
This article describes the improvement of the wastewater treatment in a fertilizer plant located in Central Italy (municipality of Vasto). In this facility, water is used for the removal of dust and fluorinated gasses from the air. The resulting wastewater contains fluorides and phosphates in hazardous forms. Its treatment ordinarily does not resul...
Article
Full-text available
The main objective of this work was to improve the technological scheme of oil refinery wastewater treatment. Replacment of the expensive filter section in a refinery plant by coagulation in order to increase effectiveness of the process at lower cost was investigated. This research has proven that Ca(OH)2 and Al2(SO4)3 were effective in treatment...
Patent
Full-text available
The present invention describes a hydrometallurgical process which has the main aim of recovering the precious elements contained in waste permanent magnets. The method is applicable to waste neodymium (Nd) magnets.
Article
In this research, extraction and purification of molybdenum from a leach solution of molybdenite dissolution was performed. Cationic polyelectrolytes were used for the first time in this study for selective recovery of molybdenum. For this purpose, some water soluble coagulants of KlarAid PC products were employed and the experimental results in te...
Conference Paper
Full-text available
The wine production consumes a large amount of fresh water, which leads to the formation of wastewater. The main problem of such waste streams is their complex chemical composition. It contains highly biodegradable organic acids, lees, ethanol, and sugars as well as difficult for microorganisms to break down aldehydes, phenolic compounds and deterg...
Conference Paper
Full-text available
Chemical vapor deposition (CVD) processes are widely used in solar cell manufacturing and include the deposition of crystalline silicon from chlorosilanes, iodides, bromides, and fluorides (Murakami et al., 2013). An unwanted side effect is the release of toxic SiO2. The by products of silicon film deposition consist of large amounts of SiO2 powder...
Conference Paper
Full-text available
Aerobic degradation of effluents contains tetramethylammonium hydroxide molecules (TMAH), coming from an electronic industry, was studied at laboratory and pilot scale. At the first, the preliminary experiments were conducted using a lab scale reactor inoculated with activated sludge coming from urban wastewater treatment. Several batches have been...
Conference Paper
Full-text available
In the present work, the potentiality of the hydrodynamic cavitation (HC) for the degradation of organic pollutants from industrial effluents has been studied. Cavitation is a phenomenon of formation, growth, collapse of microbubbles or cavities, in a few milli- to microseconds and releases large magnitude of energy in a short span of time. The mai...
Conference Paper
Full-text available
Waste of Electrical and Electronic Equipment (WEEE) is the fastest growing waste stream in Europe. This waste contains a high amount of critical and valuable metals as the rare earths defined critical materials from European Commission (2010) and the precious metals. Exhaust fluorescent lamps are examples of electronic wastes that have important pe...
Article
Full-text available
Tetramethylammonium hydroxide (TMAH) is widely used as a solvent in the semiconductor industry. After the photo-impression process, it is necessary to remove the photoresist (PR) layer from the surface of the circuits; for this purpose, a TMAH solution is usually used. This chemical compound is highly toxic and corrosive and cannot be discharged in...
Article
Full-text available
The removal of free cyanide from aqueous solutions was investigated by kaolin, calcined kaolin (metakaolin), and acid-treated metakaolin. The kaolin in raw form had no ability for cyanide adsorption, but calcination and acid treatment significantly improve its adsorptive properties. The best calcination conditions were determined to be at temperatu...
Conference Paper
Full-text available
Corrosion of metal surfaces plays a key role in many industrial applications because it affects the characteristics and the performances of the final products [1]. The application of Zr-based organic conversion nanocoatings on metal surfaces by sol-gel process or immersion in a hexafluorozirconic acid solution can replace the traditional energy con...
Article
In the present work, the degradation of azo-dyes in aqueous solutions by using hydrodynamic cavitation is performed. Methyl orange was chosen as colorant model pollutant. During the experimental tests, the effect of various operating parameters on the decolourization efficiency was investigated. In the first series of experiments, the hydrodynamic...
Article
Full-text available
The microelectronics industry produces significant amounts of wastewaters containing inorganic substances such as fluorides, phosphates, and organic pollutants such as acetic acid (CH3COOH), and tetramethylammonium hydroxide (C4H13NO, TMAH). The objective of this manuscript is the description of the depuration process of three types of wastewaters,...
Article
Full-text available
The rare earth elements (REEs) were classified as critical raw materials for Europe for their economic relevance and the supply risk. Currently, most of REE production is concentrated in the Chinese area and it is used for the production of many technologies including: fluorescent lamps, fluid catalytic cracking catalysts and permanent magnets. At...
Article
Full-text available
The metals and industrial minerals contained in the tailings of mining and quarrying activities, can degrade natural environments as well as human health. The objective of this experimental work is the application of innovative and sustainable technologies for the treatment and exploitation of mining tailings from Romania. Within this approach, the...
Conference Paper
Full-text available
Tetramethylammonium hydroxide (TMAH) is widely used as solvent in the microelectronic industry that produces semiconductors. After the photo-impression process, it is necessary to remove the photoresist layer from the surface of the circuits; for this purpose, TMAH solution is usually used. This chemical compound is highly toxic and corrosive and c...
Article
Full-text available
Every year the oil refining industry consumes thousand tons of fluid catalytic cracking zeolite from the E-cat generated in the fluid catalytic cracking (FCC) unit. In the present paper, a new process for recycling of fluid catalytic cracking catalysts (FCCCs) is presented. The process, previously tested at laboratory scale, was simulated by SuperP...
Article
This paper presents the main achievements of a hydrometallurgical process to recover base and precious metals from waste printed circuit boards (WPCB). The technology comprises a first leaching process performed in a two-step counter current way with sulfuric acid and hydrogen peroxide for base metals solubilization and a consecutive cross leaching...
Patent
The present invention describes a hydrometallurgical process, the main purpose of which is to extract Cu, Sn, Zn, Au and Ag from waste electronic boards by means of hydrometallurgical treatments. The method comprises the following main stages: (i) removal of the electronic components containing dangerous substances from the surface of the boards; (...
Article
Fluid catalytic cracking is one of the major secondary conversion process in petroleum refining. Nowadays, the spent fluid catalytic cracking catalysts (FCCCs) are disposed of in landfill or stocked for a long period. Environmental risks and lack of space suggest that the management of FCCCs needs to be reviewed. The FCC catalysts contain about 3-3...
Article
The aim of this research was to investigate the methyl orange degradation using hydrodynamic cavitation. The synthetic solutions simulated a real textile effluent containing dye and metals (iron and nickel) as a consequence of the corrosion of nickel-plated metal components of the plant during the production of textile materials. In the first serie...
Patent
The enormous development of the electronics and semiconductor industry has appreciably increased the use of many chemicals needed in various production processes, many of which are toxic to biota. These products have to be disposed of after the production of microchips, printed circuits, etc., when they end up in solid, liquid or gaseous waste flow...
Article
Full-text available
The present paper deals with an innovative scrubber (air pollution abatement) used to remove particulate matter and other pollutants from air. Air pollution abatement scrubbers were placed in different urban areas and in industrial production sites. In particular, the results obtained in one fiberglass production facility showed a reduction in part...
Article
The core of this paper is to expose the current situation on generation and treatment of five streams that present Ag in their composition. During the last two decades, large amounts of silver recovered from primary ores has been used in the manufacturing of electrical and electronic devices. Between these devices, the current situation for printed...
Article
Hydrometallurgical processes for the treatment and recovery of metals from waste electrical and electronic equipment produce wastewaters containing heavy metals. These residual solutions cannot be discharged into the sewer without an appropriate treatment. Specific wastewater treatments integrated with the hydrometallurgical processes ensure a sust...
Article
Full-text available
This paper present research regarding the cobalt recovery from the disassembled cathode from lithium-ion based secondary batteries. The experiments were carried out on the grinded material to a size appropriate to the performance of a hydrometallurgical process. Hydrometallurgical processing consisted in the involvement of different reagents that h...
Article
Full-text available
Aerobic treatment of wastewater containing Tetramethylammonium hydroxide (TMAH) and photoresist was investigated using a lab scale reactor inoculated with activated sludge coming from urban wastewater treatment that never received TMAH before. The consumption of TMAH was monitored by liquid ion chromatography. Biodiversity indices were calculated f...
Article
In this paper, the efficiency of micellar enhanced ultrafiltration technique (MEUF) was tested for the removal of yttrium and zinc ions from synthetic industrial liquid wastes. UF membranes (monotubular ceramic membranes of 210 kDa and 1 kDa molecular weight cut-off) were used with adding an anionic surfactant, sodium dodecyl sulfate (SDS). A two -...
Article
Precious metals recovery from waste (in particular, electronic waste) has gained a high interest for the worldwide researchers. This is due to their large number of applications and also to achieve a conservation of primary raw materials. In other words, to apply the principle of circular economy. Therefore, using this approach, we are currently un...
Article
In this research, micellar enhanced ultrafiltration (MEUF) is tested as a seawater pre-treatment before entering RO. The experimental tests were performed by means of monotubular ceramic membranes of 210 kDa and 1 kDa. Boron is removed from the water flow using sodium dodecyl sulphate as a surfactant. The synthetic solutions contain 5 mg/L of boron...
Article
The paper is focused on the application of solvent extraction for the recovery of rare earth elements from sulfuric leaching solutions obtained by the dissolution of fluorescent powders of lamps. The efficiency on rare earths extractions of three extractants, Cyanex 272, Cyanex 572 and D2EHPA in kerosene were investigated as a function of pH levels...
Data
There are the picture relevant to the paper "Leaching of yttrium from cathode ray tube fluorescent powder: Kinetic study and empirical models" by Innocenzi et al., INternational Journal of Mineral Processing 168. DOI: 10.1016/j.minpro.2017.09.015
Article
In this article, removal of cobalt ions from synthetic liquid wastes aimed at surfactant and water reuse was carried out using a micellar-enhanced ultrafiltration (MEUF) process, adding an anionic surfactant (sodium dodecyl sulfate or SDS), with a lab-scale ceramic ultrafiltration membrane. In the first part of the study, ultrafiltration was studie...