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Immobilization Of Heavy Metal In Contaminated Mine Technosols Using Biochar: A Phytomanagement Strategy, Domenico Morabito, Manhattan Lebrun, Romain Nandillon, Florie Miard, Nour Hattab Hambli, Simon Chevolleau, Melissa Simiele, Sylvain Bourgerie

Bio-Char II: Production, Characterization and Applications

Soil contamination by metal(loid)s is one of the most important environmental problem. It leads to loss

of environment biodiversity and soil functions and can have harmful effects on human health. Therefore,

contaminated soils could be remediated, using phytomanagement. Indeed, plant growth will improve soil

conditions while accumulating metal(loid)s and modifying their mobility. However, due to the poor

fertility and high metal(loid)s levels of these soils, amendments, like biochar, has to be applied.

Phytomanagement is a technique for rehabilitating these soils and reducing the spread of pollutants. To this end, it is advisable to stabilize the mobility of pollutants in the …

Biochar And Organic Matter Co-Composting: A Critical Review, David Chiaramonti, David Casini, Tommaso Barsali, Yuri Herreras Yambanis, Javi Prieto Ruiz

Bio-Char II: Production, Characterization and Applications

The H2020 BIO4A project aims at producing and deploying Sustainable Aviation Fuels (SAF) at large scale in Europe. A major oil refinery, owned and operated by Total based on Axen’s technology, will run in non-segregated full jet-mode, targeting the production of 5 kt of ASTM-certified bio-based HEFA jet fuel. The produced SAF will then be used in commercial passenger flights: the demonstration activities will be complemented by market and policy analysis. While this part of BIO4A represent the industrial component of the project, the issue of developing additional alternative routes for supplying sustainable lipids to the HVO process represents the …

Adsorption Of Pb2+ On Magnetic Modified Hemp Biochar Prepared Using Microwave-Assisted Pyrolysis, Muhammad T. Afzal, Patrick Godwin, Huining Xiao

Bio-Char II: Production, Characterization and Applications

Magnetic modified hemp biochar with an aim of high adsorption capacity and rapid adsorption rate was prepared by two simple steps using microwave pyrolyzed biochar. This was investigated as a potential green adsorbent for lead remediation from wastewater in a batch-mode experiment. The 150 – 300 µm biochar particles obtained from microwave-assisted pyrolysis of 1.5 kg hemp biomass batch at an average temperature of 600˚C were first impregnated with H₂O₂ and then magnetized by mixing aqueous biochar suspensions with aqueous Fe³⁺/Fe²⁺ solutions. The composition, morphology and surface chemistries of this magnetic biochar was examined …

Comparative Analysis Of Low Nitrogen Emissions Fertilizers Based On Activated Carbon From Residual Materials, Javier Pallarés Ranz, Javier Pallarés Ranz, Maite López-Franco Jiménez

Bio-Char II: Production, Characterization and Applications

Nitrate leaching and ammonia volatilization are the main pathways of nitrogen loss in agriculture. New environmentally friendly fertilizers have been investigated in recent years in order to reduce nitrogen losses and associated impacts [1]. One suggested solution has been to incorporate biochar as soil amendment, since its effects on nitrogen retention and soil fertility are well known [2, 3]. Fertilizer production from activated biocarbon is the researched line explored in this work. Biochar has been produced from two different raw materials, residual biomass and coal mine residues. Both have been produced through a physical activation process in an externally heated …

Biochar Based Silicon Composites For Sensors Applications, Mauro Giorcelli, Mattia Bartoli, Alberto Tagliaferro, Carlo Rosso

Bio-Char II: Production, Characterization and Applications

Nowadays, the development of innovative sensors represents a field of great interest in the scientific community because of their ever increasing application in everyday life. Piezoresistive transducers are among the most interesting not only as sensors but also as actuators. They are of interest for a number of applicative fields ranging from pressure sensors to applications in nanomanipulation.

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The Role Of Feedstock For Biochar And Energy In Reducing The Carbon Footprint Of Bioenergy Projects — A Case Study In North Europe, Lydia Fryda, Rian Visser

Bio-Char II: Production, Characterization and Applications

The study evaluates the GHG emissions of biochar & bioenergy production in a low temperature gasifier based on various feedstocks. A LCA approach is used to assess the environmental impact of the production and use of biochar for selected applications including the whole feedstock supply chain. Three kinds of feedstock were evaluated, namely (1) agro-residues and municipal forest residues (2) clean wood from sustainable forestry (e.g. pine) and (3) fast growing energy crops (short rotation coppice) Miscanthus and/or willow.

The scenarios considered are:

(1) Co-production of bioenergy (syngas) and biochar in a low temperature gasification unit, feedstock used agro-residues and …

Biochar - Just A Black Matter Is Not Enough!, Andreas Hornung, Fabian Stenzel

Bio-Char II: Production, Characterization and Applications

What differs biochar from charcoal? The simple answer is: Biochar is a carbon rich product obtained from the thermal decomposition of organic material, at the presence of no or a little oxygen. As we can see in principle, the production of biochar is comparable to the production of charcoal, one of the oldest and most established processes used by mankind. While charcoal is made traditionally from wood, biochar can be based on a wide range of biomass and biomass residues.

However, a variety of technologies for the production of biochar was developed in the recent years. The technologies are based …

Characteristic Studies On The Biochars Produced By Hydro-Thermal And Steam Gasification Of Canola Hull And Canola Meal Fuel Pellets, Franco Berruti, Sonil Nanda, Ajay K. Dalai, Janusz A. Kozinski

Bio-Char II: Production, Characterization and Applications

Biochars, based on their production process and biomass precursor, can have a broad range of structural, compositional, chemical, and physical properties. These properties are important for identifying the biochar performance and stability in further applications. Non-food biomass has a great potential to produce biochars. Two inherent agricultural biomasses from Canadian prairies including canola hull and canola meal were used for the production of fuel pellets. This study provides information on the specific features of biochars produced by steam and hydro-thermal gasification of these fuel pellets compared with those of well-known pyrolysis biochars. For steam gasification, the steam to biomass ratio …

Activation Of Biochar From Olive Residues: A Predictive Model For Yield And Surface Area, Franco Berruti, Anastasia Colomba, Cedric Briens

Bio-Char II: Production, Characterization and Applications

A great amount of work in the literature is dedicated to the kinetic modelling of gasification reactions, while a limited number of authors have paid attention to the evolution of physical parameters, which are very important in the case in which the reaction is applied to the production of activated carbons. The Volume reaction model (VRM) [1], the Shrinking core model (SCM) [2], and the Random pore model (RPM) [3] are unable to provide a relationship between kinetics and the physical properties of the activated carbon and, particularly, between yield and surface area.

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Changes In Pore Size Distribution With Pyrolysis Temperature, Particle Aspect Ratio And Pretreatment By Leaching Of Large Beech Wood Particles, Przemyslaw Maziarka, Peter Sommersacher, Stefan Retschitzegger, Wolter Prins, Frederik Ronsse

Bio-Char II: Production, Characterization and Applications

When assessing the usefulness of pyrolysis chars as porous materials for the application as adsorbents, catalysts or catalyst supports, one of the most important parameters of the assessment, besides the specific surface area, is their pore size distribution [1, 2]. The aforementioned processes are highly pore size selective, hence inappropriate pores sizes of the applied material can lead to the material’s uselessness for a given application. In terms of the application of pyrolysis char as a soil amendment (i.e., biochar), pore size also plays a major role. For example, in case of a too large share of micropores, even though …

Nanoindentation Characterization Of Microwave-Pyrolysis Biochar, Muhammad T. Afzal, Chase Wallace, Gobinda Saha

Bio-Char II: Production, Characterization and Applications

This study investigates the nanoindentation hardness and Young’s modulus of microwave pyrolysis biochar developed from hemp and softwood feedstocks. Recent studies have produced encouraging results on the potential for biochar as a reinforcing filler in composite materials, owing to the high porosity and hardness of the carbonous material. In order to further the understanding of the effect of biochar as an additive, and to develop predictive models for the composites, mechanical properties of the chars are needed.

The biochar was synthesized from both hemp and softwood feedstocks, in-house through a microwave-pyrolysis process at 2700 watts, for one hour, with heating …

Effect Of Pyrolysis Conditions On Sewage Sludge Derived Biochars For High Value Composites Applications, Paola Giudicianni, Maurizio Troiano, Roberto Solimene, Raffaele Ragucci, Mauro Giorcelli, Alberto Tagliaferro, Mattia Bartoli

Bio-Char II: Production, Characterization and Applications

The economy of the whole wastewater treatment system is significantly burdened by the increasing amounts of sewage sludge due to the progressive implementation of the Urban Waste Water Treatment Directive 91/271/EEC and by the complexity of the treatments required for guaranteeing a safe handling and a proper end-of-life of the sludge. For this reason, thermal treatments of sewage sludge have been studied in the past for their efficient valorization in terms of energy and/or matter recovery. Among them, pyrolysis represents a viable route aiming at the recycling of resources without production of harmful substances to the humans or the environment. …

Biochar Production Though Combined Solar Drying & Single Chamber Pyrolysis, Dirk Weichgrebe, Moni M Mondal, Rahul Ramesh Nair

Bio-Char II: Production, Characterization and Applications

In this study, the challenging management of fibrous organic wastes (FOW) and dewatered municipal sewage sludge (MSS) in urban areas of Asia’s newly industrialised countries is presented with high energy efficiency, negative CO₂ balance and biochar generation. This study investigates the feasibility and benefits of a combined treatment approach for both of the substrates, comprising solar drying (SD) and pyrolysis process (PYR). Based on material investigations, a calculation model is developed to project the material and energy flows of this process combination on the example of Chennai, India.

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Influence Of Heating Rate On The Solid Yield Of Biomass Pyrolysis, Markus Lang, Kathrin Weber, Peter Quicker

Bio-Char II: Production, Characterization and Applications

The use of biochar has become increasingly popular over the last decade. The possible applications are vast and range from renewable carbon carrier in industrial and energetic applications to soil amendment and fodder additive. The various applications have different demands on the properties of biochar. These can be influenced by the choice of feedstock, reactor and production conditions. Regardless of production process and application however, achieving a high yield of the solid product is desirable from an economic point of view. The higher the treatment temperature, the more material is devolatilized and the lower is the amount of biochar that …

Influence Of Feedstock And Operational Conditions On Bio-Chars Derived From The Pyrolysis Of Selected Biomasses, David Chiaramonti, David Casini, Giovanni Ferraro, Emiliano Fratini, Giuditta Pecori, Andrea Maria Rizzo, Luca Rosi

Bio-Char II: Production, Characterization and Applications

The proprieties of bio-char, the solid product from biomass pyrolysis, depends on both the feedstock and process conditions during thermochemical conversion^[1]. As regards the interaction of the char with soil (i.e. as soil amendment), surface areas, size and shape of pores are among the most important factors to be considered.

^[1] P. R. Bonelli , G. Nunell , M. E. Fernández , E. L. Buonomo & A. L. Cukierman

(2012) The Potential Applications of the Bio-char Derived from the Pyrolysis of an Agro-industrial

Waste. Effects of Temperature and Acid-pretreatment, Energy Sources, Part A: Recovery,

Utilization, and Environmental Effects, …

Immobilization Of Heavy Metals By Microwave Torrefaction Of Sewage Sludge With Additives, Jiri Holatko

Bio-Char II: Production, Characterization and Applications

The treatment of sewage sludge (SS) is one of the most important issues of the circular economy strategy in the European Union and in the Czech Republic (CR). New legislation in the CR strictly regulates the SS landfilling and its direct application in agriculture. One of the most important limiting factors for the use of SS in agriculture are the heavy metals (HMs). Thermal transformation of SS, especially pyrolysis and torrefaction, typically provides pyrolysis oil, pyrolysis gas (syngas), and solid carbonaceous product called either biochar (when used in agriculture) or charcoal. The quality of the biochar depends strongly on the …

Biochar Beyond Carbon Sequestration: Life-Cycle Emission Reductions, Nutrient Recycling And Food Security, Johannes Lehmann

Bio-Char II: Production, Characterization and Applications

Carbon dioxide withdrawal from the atmosphere is increasingly seen as an indispensable approach to mitigate climate change in concert with emission reductions from fossil fuel use. Conversion of biomass into biochar decreases mineralizability by one to two orders of magnitude and typically constitutes half of life-cycle emission reductions of biochar systems focusing on crop or forestry residues. In addition, emission reductions related to changes in nitrous oxide emissions or photosynthesis may contribute to climate change mitigation. While impacts of pyrolyzing carbon-rich crop or forestry residues on greenhouse gas emissions have been widely investigated, less attention has been paid to nutrient-rich …

Conference Program, Franco Berruti, David Chiaramonti, Ondrej Masek, Manuel Garcia-Perez

Bio-Char II: Production, Characterization and Applications

No abstract provided.