Schlagwort: biochar

Peer-reviewed Publications

Osman et al. (2023): Reducing the carbon footprint of buildings using biochar-based bricks and insulating materials: a review

Ahmed I. Osman, Mohamed Farghali, Yitong Dong, Jiashu Kong, Mahmoud Yousry, Ahmed K. Rashwan, Zhonghao Chen, Ahmed Al-Fatesh, David W. Rooney, Pow-Seng Yap IN: Environmental Chemistry Letters, https://doi.org/10.1007/s10311-023-01662-7

This review discusses the potential benefits of incorporating biochar-based bricks and insulation materials, focusing on their preparation methods, material properties, emission reduction capabilities, effectiveness in reducing carbon emissions, enhancing thermal insulation, and promising economic prospects. The major points are: (1) Biochar-based materials offer significant potential for reducing the carbon footprint of buildings and enhancing their thermal insulation properties. (2) With a thermal conductivity ranging from 0.08 to 0.2 W/(m·K), biochar insulation materials contribute to reduced energy consumption and greenhouse gas emissions. (3) Replacing one ton of cement with biochar in brick production can substantially reduce 1351–1505 kg CO2-eq over the entire life cycle. (4) Using biochar as part of concrete insulation saves about 59–65 kg of carbon dioxide per ton while offering clear economic benefits. Although biochar insulation is comparatively more expensive than traditional insulation materials like fiberglass and foam, its energy-saving advantages can balance the extra cost. (5) Biochar insulation is derived from organic waste, contributing to improved recyclability, environmental sustainability, and cost-effectiveness.

LINK

#
Events

Webinar: Scrubbing the Skies – Quantifying Biochar CDR Global and Country-Level Impact: Lessons for Climate Change Policy and Action Plans

November 21; 1:00 pm – 2:00 pm ET, hosted by Institute for Carbon Removal Law and Policy

This webinar will focus upon a newly published paper that quantifies, for the first time, biochar production’s carbon removal potential at ~6% per year on a global scale, the equivalent of India’s annual emissions or removing 803 coal power plants. The paper’s framework also quantifies the potential contribution biochar can Wil Burns, Co-Director, ICRLP

LINK

#
Peer-reviewed Publications

Guo et al. (2023): The native SOC increase in woodland and lawn soil amended with biochar surpassed greenhouse — A seven-year field trial

Fenglei Guo, Chen Wang, Shuang Wang, Xiaorong Zhao, Guitong Li, Zhencai Sun IN: Science of The Total Environment, 907, 167924, https://doi.org/10.1016/j.scitotenv.2023.167924

This study aimed to explore the effects of biochar amendment (7 years) on carbon sequestration and the n-SOC pools of woodland, lawn, and greenhouse soils. The ‘water floating method’ and improved ‘combustion loss method’ were used in this study to quantify residual biochar in soil. The 7-year application of biochar significantly enhanced the n-SOC content in woodland and lawn soils, mainly due to an increase in humin, while a weaker enhancement was observed in greenhouse soil.

LINK

#
Scientific Theses

PhD-thesis: Biochar in forest establishment: synergies between nutrient delivery, growth and carbon storage

Hamish Alexander Creber, University of Edinburgh, http://dx.doi.org/10.7488/era/3612

This thesis explores the potential utilisation of targeted biochar application to improve seedling growth on nutrient poor soils during the establishment phase of forest cycles. A selection of distinct biochar types, ranging from high to low available phosphorus concentration, were tested in a controlled environment growth experiment on Scots pine (Pinus sylvestris L.), Sitka spruce (Picea sitchensis (Bong.) Carr.) and Douglas fir (Pseudotsuga menziesii (Mirbel) Franco) along with conventional phosphorus fertilisation intervention. A specified biochar was also developed to address the primary soil limitations on seedling establishment in phosphorus limited soils.

LINK

#
Peer-reviewed Publications

Akinyemi et al. (2023): Microwave energy radiated biochar bonded-cement-clay bricks

Banjo A. Akinyemi, Dharmappa Hagare, Alege Oluwadamilare IN: Journal of Building Pathology and Rehabilitation, 8, https://doi.org/10.1007/s41024-023-00338-7

This experimental study presents the findings on the prospects of using microwave radiation in the curing of novel clay bricks bonded with biochar and cement. The impact of the microwave energy on strength development using varied sample clay brick sizes was also considered. Linear shrinkage and compressive strength were determined while mineralogical composition, specific surface area and pore volume analysis were also performed.

LINK

#
Events

Webinar: Scrubbing the Skies – Upscaling Biochar as a Soil Amendment and Waste Management Technology: Lessons from Agricultural History

October 26th, 1:00 pm – 2:00 pm ET, hosted by Institute for Carbon Removal Law and Policy

Join the next event in the webinar series, “Scrubbing the Skies: The Role of Carbon Dioxide Removal in Combating Climate Change“ hosted by Wil Burns, Co-Director of the Institute for Carbon Removal and Policy. Agricultural biochar offers an appealing way to sequester CO2 while also improving farm soils. By pyrolising organic material (including farm and forestry wastes, but also possibly purpose-grown bio-crops), it is possible to lock atmospheric carbon into a stable solid form, which has numerous benefits when ground up and added to farm soils. Achieving this in practice, however, will require major changes to agricultural and waste management systems, with substantial ramifications from a social, economic, and political perspective. Panelist is Cameron Roberts, Postdoctoral Researcher, University of Wisconsin Madison Centre for Sustainability and the Global Environment.

LINK

#
Peer-reviewed Publications

Karan et al. (2023): Potential for biochar carbon sequestration from crop residues: A global spatially explicit assessment

Shivesh Kishore Karan, Dominic Woolf, Elias Sebastian Azzi, Cecilia Sundberg, Stephen A. Wood IN: GCB Bioenergy, https://doi.org/10.1111/gcbb.13102

Biochar, a type of carbonized biomass which can be produced from crop residues (CRs), offers a promising solution for carbon dioxide removal (CDR) when it is used to sequester photosynthetically fixed carbon that would otherwise have been returned to atmospheric CO2 through respiration or combustion. By developing a comprehensive high spatial resolution global dataset of CR production, the authors show that, globally, CRs generate around 2.4 Pg C annually.

LINK

#
Peer-reviewed Publications

Maddala et al. (2023): A study of the mechanical, thermal, and environmental properties of cementitious materials with added biochar

Padmakar Maddala, Subhash Chandra, K. Venkata Ramesh IN: Journal of Aeronautical Materials, https://www.hkclxb.cn/article/view/2023/2-411.html

This article provides a thorough analysis of the existing literature regarding the mechanical, thermal, and environmental characteristics of cementitious materials that contain biochar as an additive. Due to their potential to enhance the mechanical properties of concrete, biochar-infused cementitious materials have been the focus of recent research. It has been demonstrated that biochar, a carbon-rich substance created by roasting biological substances without oxygen, has a number of beneficial characteristics, including the capacity to enhancesoil fertility and sequester carbon. 

LINK

#
German News

„Coole Kohle“: Wie Pflanzenkohle zum Klimaschutz beitragen kann

Jakob Pallinger, derstandard.at, 26. September 2023, 09:00

„Wenn es ums Klima geht, hat Kohle normalerweise keinen guten Ruf. […] Doch es gibt auch eine Kohle, die CO2 nicht ausstößt, sondern speichert und die daher seit einigen Jahren vermehrt als Mittel im Kampf gegen den Klimawandel gesehen wird: Pflanzenkohle. Und nicht nur das: Auch als Teil von Dünger in der Landwirtschaft, Futtermittel oder von Beton könnte Pflanzenkohle künftig vermehrt zum Einsatz kommen, glauben Forschende. Steht die auch als „coole Kohle“ oder „Klimakohle“ bezeichnete Pflanzenkohle kurz vor dem großen Durchbruch?“

LINK

#
Peer-reviewed Publications

Song et al. (2023): Application of biochar cement-based materials for carbon sequestration

Siyuan Song, Zhaoxia Liu, Guoming Liu, Xiangfei Cui, Jiahao Sun IN: Construction and Building Materials 405, 133373, https://doi.org/10.1016/j.conbuildmat.2023.133373

Biochar has a rich pore structure, and after being added to cement-based materials, it accelerates the hydration of cement, promotes the absorption of CO2 by cement itself, and achieves dual carbon sequestration of biochar and cement-based materials. This article summarized the latest research progress through big data analysis and interdisciplinary work, providing guidance for the research of biochar cement-based materials.

LINK

#