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Giovanni Piro

Bio: Giovanni Piro is an academic researcher from University of Trento. The author has contributed to research in topics: Carbonization & Hydrothermal carbonization. The author has an hindex of 1, co-authored 1 publications receiving 108 citations.

Papers
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Journal ArticleDOI
01 Dec 2018-Fuel
TL;DR: In this article, the authors demonstrate the impact of processing conditions on the formation and composition of hydrochars and secondary char of municipal solid waste (OFMSW) and demonstrate that the secondary char is extractable with organic solvents and is comprised predominantly of organic acids, furfurals and phenols.

184 citations


Cited by
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Journal ArticleDOI
01 Nov 2020-Fuel
TL;DR: In this paper, the authors review the formation mechanisms of a thermochemical process for solid fuel production, such as hydrogenation, dehydration, decarboxylation, condensation, polymerization and aromatization in terms of critical hydrothermal parameters.

118 citations

Journal ArticleDOI
01 Mar 2021-Fuel
TL;DR: In this article, the authors comprehensively reviewed the biochar based catalyst for fuel production, and the reason for choosing biochar catalyst to fuel production was discussed and the mechanism by which the bio-char catalyst facilitates the fuel production were given for better understanding.

117 citations

Journal ArticleDOI
TL;DR: In this article, the aqueous phase produced from the hydrothermal carbonization (HTC) of sewage sludge (SS) with pure water was reused for the HTC of fresh SS, aiming to maximize energy recovery from the Aqueous Phase.

115 citations

Journal ArticleDOI
TL;DR: The role of initial feedstock source nature and characteristics as well as the hydrothermal carbonization (HTC) experimental conditions including the temperature, the residence time and the pH media was assessed in this paper.
Abstract: Hydrothermal carbonization (HTC) of wet solid wastes has been pointed out as an eco-friendly, flexible and highly efficient technology for the sustainable valorization of multiple sourced wastes. In this review paper, most recent studies on hydrochars (solid residue of the HTC process) production, characterization and application for wastewaters treatment was summarized and deeply discussed. The role of initial feedstock source nature and characteristics as well as the HTC experimental conditions including the temperature, the residence time and the pH media was assessed. Physical and chemical activation methods including the use of oxygen, steam, microwave, acids, alkaline, organics and salty solutions for the improvement of the physicochemical properties of the produced hydrochars are compared. The efficiency of these raw/modified hydrochars along with the involved mechanisms during organic (dyes) and mineral pollutants (heavy metals and nutrients) removal from aqueous solutions is also reviewed. Finally, this paper addresses the main challenges and also demonstrates insights on new directions for hydrochars research and development in the future.

105 citations

Journal ArticleDOI
18 Sep 2018
TL;DR: In this article, a review analyzes the preparation and characterization of biomass-derived carbons and their application as adsorbents of emerging contaminants from water streams, including a brief reference to the available technologies for their removal.
Abstract: This review analyzes the preparation and characterization of biomass-derived carbons and their application as adsorbents of emerging contaminants from water. The study begins by identifying the different types of emerging contaminants more often found in water streams, including a brief reference to the available technologies for their removal. It also describes the biomass sources that could be used for the synthesis of biochars and activated carbons (AC). The characterization of the adsorbents and the different approaches that can be followed to learn about the adsorption processes are also detailed. Finally, the work reviews literature studies focused on the adsorption of emerging contaminants on biochars and activated carbons synthesized from biomass precursors.

98 citations