Quality and suitability of fecal biochar in structurally stable urban tree substrates

Saluz, Andrea Gion; Bleuler, Mira; Krähenbühl, Nikita; Schönborn, Andreas

doi:10.1016/j.scitotenv.2022.156236

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…However, the exhaust of such a combustion process will need further emission controls to limit the concentration of pollutants below regulative figures for toxic and hazardous elements prior to disposal in the environment. For the use of the biochar as fertilizer, further analyses on the contents of heavy metals and nutrients would be necessary to meet certain standards [74]. The effects of process parameters on bio-oil composition are extensively investigated for different biomass and waste materials individually with a few ones exploring the simultaneous impacts.…”

Section: Utilisation Of Productsmentioning

confidence: 99%

Development and prototype testing of a novel small-scale pyrolysis system for the treatment of sanitary sludge

Beik

Williams

Brown

et al. 2023

Energy Conversion and Management

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Section: Utilisation Of Productsmentioning

confidence: 99%

Development and prototype testing of a novel small-scale pyrolysis system for the treatment of sanitary sludge

Beik

Williams

Brown

et al. 2023

Energy Conversion and Management

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“…Biochar, with a large specific surface area and rich pore structure (Haider et al, 2021), can improve soil permeability and increase plant nutrient accumulation (Saluz et al, 2022;Sifton et al, 2022). Application of appropriate type and dosage of biochar can improve the physicochemical properties of soil, such as bulk density, capillary porosity, total porosity, capillary water capacity, pH, soil organic matter, total N, total P, total K, available P, and available K content (Shaaban et al, 2018), which may help to stabilize HMs in sewage sludge amended soil.…”

Section: Effects Of Fb On Soil Properties and Soil-plant Heavy Metals...mentioning

confidence: 99%

Co-Recycling of Sewage Sludge and Garden Waste Biochar: As a Growing Medium for Landscape Plant

Sheng,

Feng,

Yang

et al. 2023

Journal of Environmental Engineering and Landscape Management

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Urban greening produces a large amount of garden waste, and the pyrolysis of garden waste into biochar is an effective waste management technology. Biochar has a large specific surface area and soil remediation ability. However, the knowledge about the co-recycling of sewage sludge and garden waste biochar to improve the growth of Monstera deliciosa needs to be highlighted. Therefore, we conducted a pot experiment by applying Ficus altissima litter-derived biochar (FB) at rates of 0, 1.5, and 3.0% (w/w, CK, FB1.5, and FB3) in soil amended with sewage sludge at 50% (w/w), to improve the soil properties, and further analyzed the effects of FB on growth and heavy metals (HMs) uptake of landscape plant M. deliciosa. Results showed in comparison with control setups, the addition of 3% FB treatment in sewage sludge amended soil improved the soil properties and significantly increased M. deliciosa dry weight (86.75%), root: shoot ratio (73.23%), N (99.44%), P (116.13%), K (124.40%), Pb (78.81%), and Cu (159.01%) accumulation respectively. In summary, FB3 treatment achieved the best effects in promoting plant growth and soil remediation. These findings revealed that sewage sludge and garden waste biochar could be recycled as amendments for poor acid soils under restoration, a sustainable development path for urban waste disposal.

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Faecal sludge pyrolysis as a circular economic approach to waste management and nutrient recovery

Nicholas,

Winrow,

Devine

et al. 2023

Environ Dev Sustain

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The disposal of faecal sludge from non-networked sanitation amenities leads to contamination of the surrounding environment and increasing public health problems across developing countries. Permanent solutions to deal with faecal sludge are required to solve the sanitation crisis and achieve the Sustainable Development Goal (SDG) 6 “ensure availability and sustainable management of water and sanitation for all” by 2030. Full-scale pyrolysis of faecal sludge in developing countries is fast becoming a safe and long-term option. Pyrolysis not only eliminates pathogens within the sludge but produces biochar as an end product which has the potential as a soil amendment to increase crop yield. In general, faecal sludge biochars have high pH values, high ash contents, and high macro-and micronutrient concentrations. Compared to biochar from lignocellulosic materials, faecal sludge biochar contains less carbon and exhibits lower porosities, and lower surface areas. However, evaluating the properties of faecal sludge biochar is difficult due to the different technologies used in collection, storage, and transportation of the feedstock. Differences in faecal sludge characteristics based on location, climate, age of the sludge, type of sanitation technology and seasonality are also factors in determining the properties of faecal sludge biochars. These factors contribute to the difficulty in describing faecal sludge biochar properties in general terms, and there is an argument to be made that characteristics of large-scale faecal sludge biochar should be determined on a case-by-case basis. The conclusion of this review is that future research should concentrate on short-term and long-term field studies of faecal sludge biochar application to different soil types.

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Quality and suitability of fecal biochar in structurally stable urban tree substrates

Cited by 3 publications

References 22 publications

Development and prototype testing of a novel small-scale pyrolysis system for the treatment of sanitary sludge

Development and prototype testing of a novel small-scale pyrolysis system for the treatment of sanitary sludge

Co-Recycling of Sewage Sludge and Garden Waste Biochar: As a Growing Medium for Landscape Plant

Faecal sludge pyrolysis as a circular economic approach to waste management and nutrient recovery

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