Environmental assessment of valorisation alternatives for woody biomass ash in construction materials

Costa, Tamíris Pacheco da; Quinteiro, Paula; Tarelho, L.A.C.; Arroja, Luís; Dias, Ana Cláudia

doi:10.1016/j.resconrec.2019.04.022

Cited by 43 publications

(24 citation statements)

References 39 publications

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“…For the global warming (GW), smog (Sm), acidification (Ac) and respiratory inorganics (Res) impact categories, all BU options generally present a lower indicator score than landfilling. Other authors also typically find that alternative management options for wood ash result in lower environmental score than landfilling (da Costa et al., 2019, 2020; Toller et al., 2009; Tosti et al., 2019).…”

Section: Resultsmentioning

confidence: 99%

Is the beneficial use of wood ash environmentally beneficial? A screening‐level life cycle assessment and uncertainty analysis

Gaudreault¹,

Lama²,

Sain

2020

J of Industrial Ecology

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In this paper, a screening‐level life cycle assessment (LCA) approach is used to compare the potential environmental benefits and tradeoffs of different management options for wood ash, namely, agricultural land application, forest soil amendment, use in forest roads, use in concrete and mortar, and landfilling. Uncertainty analyses are used to evaluate the generalizability of the results obtained. Although decisions regarding the selection of a beneficial use option are site‐specific and depend on available local markets and wood ash characteristics, this study shows that it is possible to draw a few general conclusions from the application of LCA. All beneficial use (BU) options showed lower environmental indicator scores than those associated with landfilling, in addition to net potential environmental benefits. From an environmental perspective, results suggest that, only in a few situations, beneficially using wood ash might not produce potential net environmental benefits but would still be preferred over landfilling, and in a very few cases, landfilling would be preferred over a BU option. For instance, net environmental benefits may be compromised if wood ash needs to be transported over long distances before it can be beneficially used. Out of the four BU options evaluated, the use of wood ash in concrete to replace Portland cement showed the greatest potential environmental benefits. However, the application of wood ash on agricultural or forest land showed greater environmental benefits than the use in concrete in cases where both its liming and fertilizing potentials are assumed to be achieved at the same time.

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Section: Resultsmentioning

confidence: 99%

Is the beneficial use of wood ash environmentally beneficial? A screening‐level life cycle assessment and uncertainty analysis

Gaudreault¹,

Lama²,

Sain

2020

J of Industrial Ecology

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“…They are considered inert, nontoxic, and indefinitely stable in the air. PHAs can show thermoplastic and elastomeric properties, very high purity within the cell, high resistance to UV light degradation, and low solvent resistance [ 13 ] and are biodegradable and biocompatible. These properties make them appropriate materials in various applications, such as surgical devices (bone plate, repair patches, screws, and orthopedic pins), replacements or scaffolds for damaged tissue in tendon repair devices, wound dressing, vein valves, and bone marrow scaffolds [ 19 , 20 , 21 ].…”

Section: Polyhydroxyalkanoates (Phas) In Microalgaementioning

confidence: 99%

“…The R-group is made up of hydrogen or hydrocarbon chains up to C15 in length. Short-chain-length 3-hydroxyalkanoates (scl-3HA) have 3–5 carbon atoms, medium-chain-length 3-hydroxyalkanoates (mcl-3HA) have 6–14 carbon atoms in the chain, and long-chain-length hydroxyalkanoic acids (lcl-PHA) have more than 15 carbon atoms [ 13 , 23 ]. The mechanical properties of PHAs, including hard crystalline and elastic behavior, can vary from one PHA to another, depending on their composition in monomer units [ 17 ].…”

Section: Polyhydroxyalkanoates (Phas) In Microalgaementioning

confidence: 99%

“…Despite the increased relevance of microalgae and their bioactive compounds in several markets, much more needs to be done considering microalgae production, namely in what concerns the understanding behind the maximization of cell production and the maximization of the production of the most relevant compounds in order to increase processability and market competitiveness, besides reducing the production costs [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Microalgae as Contributors to Produce Biopolymers

et al. 2021

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Biopolymers are very favorable materials produced by living organisms, with interesting properties such as biodegradability, renewability, and biocompatibility. Biopolymers have been recently considered to compete with fossil-based polymeric materials, which rase several environmental concerns. Biobased plastics are receiving growing interest for many applications including electronics, medical devices, food packaging, and energy. Biopolymers can be produced from biological sources such as plants, animals, agricultural wastes, and microbes. Studies suggest that microalgae and cyanobacteria are two of the promising sources of polyhydroxyalkanoates (PHAs), cellulose, carbohydrates (particularly starch), and proteins, as the major components of microalgae (and of certain cyanobacteria) for producing bioplastics. This review aims to summarize the potential of microalgal PHAs, polysaccharides, and proteins for bioplastic production. The findings of this review give insight into current knowledge and future direction in microalgal-based bioplastic production considering a circular economy approach. The current review is divided into three main topics, namely (i) the analysis of the main types and properties of bioplastic monomers, blends, and composites; (ii) the cultivation process to optimize the microalgae growth and accumulation of important biobased compounds to produce bioplastics; and (iii) a critical analysis of the future perspectives on the field.

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“…Therefore, the reuse of ash has gained an increased interest. Depending on the composition and geographical region, ash has been used in agriculture (soil amendment), as forest soil amendment, to control the odor and pH of some wastes, to remove pollutants from water and to produce ceramics and building materials (cement base and road base material) [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

A Sustainable Solution to Obtain P-K-Mn Glass Fertilizers from Cheap and Readily Available Wastes

Vancea

Moșoarcă

Popa

2021

IJERPH

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The sustainable economy framework imposes the adoption of new ways for waste reuse and recycling. In this context, this paper proposes a new alternative to obtain glass fertilizers (agriglasses) by reusing two cheap and easily available wastes, wood ash and manganese rich sludge resulting from drinking water treatment processes for groundwater sources. Glasses were obtained using different amounts of wastes together with (NH4)2HPO4 and K2CO3 as raw materials. The P-K-Mn nutrient solubilization from the obtained glasses was investigated using a citric acid solution. The kinetics of the leaching process was studied after 1, 7, 14, 21 and 28 days, respectively. The intraparticle diffusion model was used to interpret kinetic data. Two distinct stages of the ion leaching process were recorded for all of the studied compositions: first through intraparticle diffusion (the rate-controlling stage) and second through diffusion through the particle–medium interface. The fertilization effect of the obtained agriglasses was studied on a barley crop. The specific plant growth parameters of germination percentage, average plant height, biomass and relative growth rate were determinate. The positive impact of the agriglasses upon the plants biomass and relative growth rate was highlighted. The effects of agriglasses can be tuned through glass compositions that affect the solubility of the nutrients.

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Environmental assessment of valorisation alternatives for woody biomass ash in construction materials

Cited by 43 publications

References 39 publications

Is the beneficial use of wood ash environmentally beneficial? A screening‐level life cycle assessment and uncertainty analysis

Is the beneficial use of wood ash environmentally beneficial? A screening‐level life cycle assessment and uncertainty analysis

Microalgae as Contributors to Produce Biopolymers

A Sustainable Solution to Obtain P-K-Mn Glass Fertilizers from Cheap and Readily Available Wastes

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