Biochar produced from wood waste for soil remediation in Sweden: Carbon sequestration and other environmental impacts

Papageorgiou, Asterios; Azzi, Elias Sebastian; Enell, Anja; Sundberg, Cecilia

doi:10.1016/j.scitotenv.2021.145953

Cited by 60 publications

(27 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…101,102 In some specific uses, biochar may need to be modified via activation and/or other post-pyrolysis treatments. 103,104 Some of the lignocellulosic material feedstocks used for biochar production include wood waste, 105 agricultural residues, 106 forestry waste, 107 municipal wastes, 108 and dairy manure. 109 Lignocellulosic materials consist of cellulose, hemicellulose, and lignin, in addition to extractives, fats, and inorganic fractions.…”

Section: Biochar Production Formation Characterization and Modificationmentioning

confidence: 99%

“…Biochar with high surface area, fine porous structure, and rich functional groups is considered suitable for different applications. , In some specific uses, biochar may need to be modified via activation and/or other post-pyrolysis treatments. , Some of the lignocellulosic material feedstocks used for biochar production include wood waste, agricultural residues, forestry waste, municipal wastes, and dairy manure . Lignocellulosic materials consist of cellulose, hemicellulose, and lignin, in addition to extractives, fats, and inorganic fractions. , When lignocellulosic materials are heated to temperatures over 300 °C, cellulose, hemicellulose, and lignin bonds break, forming lower molecular weight compounds called oligomers.…”

Section: Biochar Production Formation Characterization and Modificationmentioning

confidence: 99%

See 1 more Smart Citation

Perspectives of Engineered Biochar for Environmental Applications: A Review

2022

View full text Add to dashboard Cite

Research on using biochar for environmental applications has witnessed unprecedented advances in the past decade. Biochar is universally considered one of the best alternatives to store carbon to fight global warming. Thus, the sequential use of biochar in environmental remediation compatible with carbon sequestration is receiving growing attention. One of the reasons for such huge interest is the possibility to engineer biochar with targeted properties (e.g., surface area and chemistry) relevant to existing environmental issues. These properties can be achieved by selecting appropriate raw materials, processing conditions, carbonization technology, and the possibility of selecting postproduction modification approaches. The objective of this review is to summarize strategies to enhance biochar properties relevant to its use in environmental services (e.g., water purification, air/gas cleaning, construction materials, soil amendments) and the corresponding results on the use of this material for these applications. The main methods for enhancing biochar properties for environmental applications reviewed include activation (physical and chemical), oxidation, metal and metal oxide modification, metal-free heteroatom doping, and biological modification. Both modified and unmodified biochars have been used for soil amendments as adsorbents of pollutants in the aqueous phase (e.g., removal of P and N, heavy metals, and organic pollutants), adsorbents of pollutants in the gas phase (e.g., biogas cleaning), as a catalyst, as an additive for improving anaerobic digestion, and as an admixture to cementitious/construction materials, with promising results in all cases. New opportunities for using biochar are being reported as the science of biochar production, modification, and use advances.

show abstract

Section: Biochar Production Formation Characterization and Modificationmentioning

confidence: 99%

Section: Biochar Production Formation Characterization and Modificationmentioning

confidence: 99%

Perspectives of Engineered Biochar for Environmental Applications: A Review

2022

View full text Add to dashboard Cite

show abstract

“…In an environmental systems analysis, it is important to have a comparative approach to produce meaningful results, and for this purpose, the analyst defines a so-called "functional unit". The functional unit used in E-LCA studies of pyrochar production systems varies from mass of feedstock [16,17], to mass of generated pyrochar [18] or carbon content in produced pyrochar [19] or to have multi-functional units [20]. In this work, the authors have selected the amount of dry matter sludge required to produce 1 tonne (t) of pyrochar (which is around 2.8 t dry sludge), as the functional unit (FU).…”

Section: Goal and Scope Definitionmentioning

confidence: 99%

Sensitivity Analysis of the Climate Effect of Using Pyrochar Biofuel for Heat and Electricity Generation

Högosta

Mohammadi

2021

Processes

View full text Add to dashboard Cite

This study aims to quantify the climate change impact of pyrochar production from pulp and paper mill sludge and the subsequent utilisation in combined heat and power (CHP) plants for co-generation of heat and electricity using the environmental life cycle assessment (E-LCA) method. In the Pyrochar Scenario, in which the sludge is pyrolyzed into pyrochar, the authors have assumed that pyrochar would replace coal. In the Reference Scenario, sludge is incinerated with a subsequent low rate of energy recovery. A comprehensive sensitivity analysis was performed to determine the conditions in which the sludge pyrochar would offer the greatest climate-effect benefits. The parameters selected for the said analysis are the form of pyrochar (pellet or powder), fuels replaced by it in the CHP plant (solid waste and peat vis-à-vis coal), and the utilisation of the pyrochar fuel in another European country (Germany and Spain vis-à-vis Sweden). The results of this E-LCA clearly show that using pyrochar as a biofuel in CHP plants delivered a considerable reduction in greenhouse gas (GHG) emissions (−1.87 tonne CO2-eq per 2.8 tonne dry sludge). Contribution analysis reveals that the process accounting for the biggest share of the reduction is the pyrochar combustion (a negative contribution of 76%), which results in a displacement of coal-based fuels. The authors conclude that the utilisation of pyrochar in firing units would provide the highest reduction in GHG emissions, while recommending a comprehensive economic analysis in addition to climate effect assessment, before making a decision regarding the introduction of sludge pyrochar to the energy sector.

show abstract

“…Recently, considerable literature has grown up around the theme of carbon emissions. A key aspect of this field is CO 2 emission reduction technologies, including CO 2 capture and storage (CCS) (Xu et al, 2021), carbon sink (Pan et al, 2011), biochar (Papageorgiou et al, 2021; and carbon sequestration (Marland and Schlamadinger, 1997;Lal, 2004;Laudicina et al, 2021). There has also been a surge of interest in the effects of these numerous techniques (Bonan, 2008;Fuhrman et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Can the Natural Resources Capitalization Contribute to the Achievement of Carbon Neutrality? A Pilot Experiment Evidence From China

Xia

Xiong

et al. 2022

Front. Environ. Sci.

View full text Add to dashboard Cite

There has been renewed interest in assessing the pilot scheme for compiling the natural resources capitalization (NRC). A growing body of evidence highlights the good effects that the policy of NRC has on the construction of ecological civilization. No known empirical research has focused on exploring relationships between the policy of NRC and carbon emissions reduction. This paper employs the NRC as the ecological civilization policy to investigate whether the implementation of NRC has contributed to the carbon emissions reduction with a difference-in-differences (DID) method. The results showed that different variables of carbon emissions in four pilot cities can be effectively affected by the implementation of NRC. There were significant negative correlations between the carbon emissions per GDP (Gross Domestic Product) and the policy for Hulun Buir, Huzhou and Loudi cities, and a significant increase of carbon sequestration was found in Yan’an city. This research provides a timely and necessary study that the NRC policy could be a contributing factor to carbon emissions reduction. As a result of these investigations, suggestions were identified for future research. Further research should be undertaken to investigate the collaborative effects of multi-policies on environmental issues.

show abstract

Biochar produced from wood waste for soil remediation in Sweden: Carbon sequestration and other environmental impacts

Cited by 60 publications

References 48 publications

Perspectives of Engineered Biochar for Environmental Applications: A Review

Perspectives of Engineered Biochar for Environmental Applications: A Review

Sensitivity Analysis of the Climate Effect of Using Pyrochar Biofuel for Heat and Electricity Generation

Can the Natural Resources Capitalization Contribute to the Achievement of Carbon Neutrality? A Pilot Experiment Evidence From China

Contact Info

Product

Resources

About