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The Mexico City Hydrothermal Carbonization Plant - An Alternative For The Management Of The Organic Fraction Of The Municipal Solid Waste (Ofmsw) In Urban Areas, Gustavo A. Gutiérrez Fernández, Daniel Camarena Elizondo,, Luis Álvarez Icaza Longoria, Christina Siebe
The Mexico City Hydrothermal Carbonization Plant - An Alternative For The Management Of The Organic Fraction Of The Municipal Solid Waste (Ofmsw) In Urban Areas, Gustavo A. Gutiérrez Fernández, Daniel Camarena Elizondo,, Luis Álvarez Icaza Longoria, Christina Siebe
Bio-Char III: Production, Characterization and Applications
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Hydrothermal Carbonization Of Biomass Wastes: Sustainability And Geochemistry, Michael A. Kruge, Teresa A. Centeno, Alvaro Amado-Fierro, José Manuel González-Lafuente, Ruben Forjan-Castro, José Luis Gallego
Hydrothermal Carbonization Of Biomass Wastes: Sustainability And Geochemistry, Michael A. Kruge, Teresa A. Centeno, Alvaro Amado-Fierro, José Manuel González-Lafuente, Ruben Forjan-Castro, José Luis Gallego
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Introduction. To reduce the stream of solid waste going to landfills, innovative means for beneficial use are essential. The diversity and volume of organic wastes pose singular problems and opportunities for recovery and circularity. Common processes for organics include conversion to biofuels and carbonization to biochar, typically done by torrefaction (dry pyrolysis). Research on biochar explores its potential as pollutant adsorbent, agricultural or polluted soil amendment, biofuel (directly or as feedstock), and for carbon sequestration (Ighalo et al., 2022; Cavali et al., 2023). Recently, other processes at lower temperatures such as hydrothermal carbonization (HTC) offer new possibilities (Seshadri et al., …
Production Of Engineered Carbons From Secondary Waste Streams For Environmental Applications, Ghazaleh Chegini
Production Of Engineered Carbons From Secondary Waste Streams For Environmental Applications, Ghazaleh Chegini
Electronic Thesis and Dissertation Repository
Pyrolysis and activation were used in this thesis to produce biochar and activated carbon from industrial digestate and hydrochar materials. In the first part of thesis, digestate derived biochars were obtained by varying the pyrolysis heating rate (10, 80, 100, 200, >1000 °C·min-1) and temperature (300 to 600 °C) to modify their soil-related characteristics (i.e., nutrient leachability, carbon stability, and heavy metal adsorptive capacity). The biochar produced at a temperature of 500 °C and heating rate of 10 °C·min-1 was also activated under using CO2 at 800 °C with different holding times (0.5-2 h). Results indicated …
Development Of Low-Cost Adsorbents From Biomass Residues For The Removal Of Organic Contaminants And Heavy Metals From Aqueous Solutions., Sunith Babu Madduri
Development Of Low-Cost Adsorbents From Biomass Residues For The Removal Of Organic Contaminants And Heavy Metals From Aqueous Solutions., Sunith Babu Madduri
Theses and Dissertations
Increasing population across the globe paved the way for rapid growth in industrialization. Pharmaceuticals, automotive, textiles, agriculture, electronics, electrical and many other industries discharge different types of heavy metals, dyes and organic contaminants into ground water. These discharges are released into lakes and rivers without prior treatment causing huge environmental impact to the environment. Among different remediation techniques, adsorption was considered the most promising method because of its low-cost and high efficiency. Biomass is considered as the most practical and renewable source for production of bio products and biofuels. Biomass is also used for carbon sequestration and as an essential …
Evaluación Del Hydrochar Producido Por Tratamiento Hidrotermal Como Medio Adsorbente De Color De Un Agua Residual, Manuela Ximena Pineda Pineda, Daniel Camilo Flórez Guarín
Evaluación Del Hydrochar Producido Por Tratamiento Hidrotermal Como Medio Adsorbente De Color De Un Agua Residual, Manuela Ximena Pineda Pineda, Daniel Camilo Flórez Guarín
Ingeniería Ambiental y Sanitaria
lo cual también contribuye a la problemática del mal manejo de los residuos ya que estos normalmente no son aprovechados y por el contrario son dispuestos en el relleno sanitario aumentar la sobrepresión a estos disminuyendo su tiempo de vida útil. Los biocarbónes fueron producidos a partir de la técnica de carbonización hidrotermal a base de residuos de cáscaras de hojas de cebolla larga, hojas de maíz y cáscara de arveja que se compraron a los vendedores en la plaza de mercado de Paloquemao. Se eligió esta materia prima por su alto contenido en fibra y celulosa, lo que aporta …
Fuel Characteristics And Combustion Behavior Of Seaweed-Derived Hydrochars, İsmai̇l Cem Kantarli, Mehmet Pala, Yeli̇z Yildirim, Jale Yanik, Maria Helena Abreu
Fuel Characteristics And Combustion Behavior Of Seaweed-Derived Hydrochars, İsmai̇l Cem Kantarli, Mehmet Pala, Yeli̇z Yildirim, Jale Yanik, Maria Helena Abreu
Turkish Journal of Chemistry
In this study, conversion of seaweeds into hydrochars was investigated with the aim of obtaining a renewable energy feedstock. The seaweeds Fucus serratus and Alaria esculenta, and a mixture of seaweeds, mainly consisting of Cystoseria sp$.$ and Laurencia sp$.$, were subjected to hydrothermal carbonization (HTC) in subcritical water at three different temperatures: 200, 225, and 250 $^{\circ}$C. Fuel characteristics and chemical properties of the derived hydrochars were determined using the standard fuel analysis and spectroscopic methods. The combustion behavior of seaweeds and hydrochars was examined via nonisothermal thermogravimetric analysis under air atmosphere. The seaweed-derived hydrochar yields were lower than those …
Toxicity Screening Of Biochar-Mineral Composites Using Germination Tests, Jan Mumme, Josephine Getz, Munoo Prasad, Ulf Lüder, Kern Jurgen, Ondrej Masek, Wolfram Buss
Toxicity Screening Of Biochar-Mineral Composites Using Germination Tests, Jan Mumme, Josephine Getz, Munoo Prasad, Ulf Lüder, Kern Jurgen, Ondrej Masek, Wolfram Buss
Articles
This study assessed the properties and toxicity (water cress germination trials) of 38 waste-derived, novel biochar-mineral composites (BMCs) produced via slow pyrolysis and hydrothermal carbonization (hydrochars). The biochars were produced from sewage sludge and compost-like output (CLO) by varying the type of mineral additive (zeolite, wood ash and lignite fly ash), the mineral-to-feedstock ratio and the carbonization process. While pure hydrochars completely inhibited germination of water cress, this effect was ameliorated by mineral additives. Seedlings grew best in pyrolysis chars and while wood ash addition decreased plant growth in many cases, 1:10 addition to CLO doubled germination rate. The factors …
Hydrothermal Conversion Of Neutral Sulfite Semi-Chemical Red Liquor Into Hydrochar, Ramy Gamgoum, Animesh Dutta, Rafael M. Santos, Yi Wai Chiang
Hydrothermal Conversion Of Neutral Sulfite Semi-Chemical Red Liquor Into Hydrochar, Ramy Gamgoum, Animesh Dutta, Rafael M. Santos, Yi Wai Chiang
Faculty Publications and Scholarship
Hydrochar was produced from neutral sulfite semi-chemical (NSSC) red liquor as a possible bio-based solid fuel for use in power generation facilities. Hydrothermal conversion (HTC) experiments were conducted using a fixed liquor-to-water volume ratio of 1:8 and reaction time of 3 h. Solutions were processed using different chemical additives, pH and temperature conditions to determine the optimum conditions required for producing a high energy content solid fuel. The hydrochar samples produced were analyzed by ultimate, thermogravimetric (TGA) and Fourier transform infrared spectroscopy (FTIR) analyses to determine physicochemical properties that are important for utilization as a fuel. The residual process liquids …