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En Haïti, l’amélioration des performances du secteur agricole est limitée par de nombreux facteurs dont la diminution progressive de la fertilité des sols. Le prix des fertilisants chimiques est en hausse sur le marché alors que les déchets organiques, potentiellement valorisables, ne sont pratiquement pas valorisés. 
En vue de contribuer à l’amélioration durable de la fertilité des sols en Haïti, plus particulièrement les sols maraîchers, par la valorisation des déchets organiques et la réduction de l’utilisation des engrais chimiques dans l’agriculture, il a été réalisé dans la zone périurbaine de Ouanaminthe (Nord-Est, Haïti) une étude dont les objectifs spécifiques ont été de tester l’efficacité du fumier de volaille frais (T2) et du fumier de volaille composté (T3) sur la croissance et le rendement de l’amarante (Amaranthus cruentus L.), comparativement au fertilisant chimique de formulation 15-15-15 (T4) et à des parcelles non fertilisées (T1). 
Cette étude a été réalisée en plein champ entre le milieu du mois d’Avril et le début du mois de Juin 2022. Le dispositif expérimental en Carré Latin constitué de quatre (4) traitements, quatre (4) lignes et de quatre (4) colonnes a été utilisé. Des échantillons de sol et de fumiers de volaille (frais et composté) ont été prélevés et analysés. Les doses appliquées ont été calculées en tenant compte des besoins d’exportation de l’amarante en Azote (125 kg/ha) pour des rendements de l’ordre de 20 t/ha. La cendre de bois a été utilisée pour équilibrer les apports des fumiers de volaille (frais et composté) en phosphate et en potasse. Les données ont été analysées sur le logiciel R suivant l’ANOVA à un facteur et le test de Tukey au seuil de 5% de probabilité. 
Les principaux résultats obtenus ont montré que les fumiers de volaille (frais et composté) ont globalement entrainé une amélioration de la croissance et du rendement de l’amarante, comparativement aux parcelles non fertilisées sur lesquelles la croissance et le rendement ont été un peu faibles. Par ailleurs, le rendement obtenu avec le fumier de volaille frais (2,42 ± 0,07 kg/m2) n’a pas été significativement différent du rendement obtenu avec le fertilisant chimique (2,68 ± 0,07 kg/m2). La hauteur et le diamètre obtenus avec le fumier de volaille frais (57,17 ± 2,89 cm et 12,33 ± 0,48 mm) n’ont pas été non plus différents de ceux obtenus avec le fertilisant chimique (70,78 ± 2,89 cm et 14,66 ± 0,48 mm). Cependant, la hauteur et le rendement obtenus avec le fumier de volaille composté (54,31 ± 2,89 cm et 2,08 ± 0,07 kg/m2) ont été significativement inférieurs à la hauteur et au rendement obtenus avec le fertilisant chimique (70,78 ± 2,89 cm et 2,68 ± 0,07 kg/m2). In Haiti, improving the performance of the agricultural sector is limited by many factors including the gradual decline in soil fertility. The price of chemical fertilizers is rising on the market while organic waste, potentially recoverable, is practically not recovered. 
In order to contribute to the sustainable improvement of soil fertility in Haiti, more particularly market garden soils, through the recovery of organic waste and the reduction of the use of chemical fertilizers in agriculture, it was carried out in the peri-urban area of Ouanaminthe (North-East, Haiti) a study whose specific objectives were to test the effectiveness of fresh poultry manure (T2) and composted poultry manure (T3) on the growth and yield of amaranth (Amaranthus cruentus L.), compared to chemical fertilizer formulation 15-15-15 (T4) and unfertilized plots (T1). 
This study was carried out in the open field between the middle of April and the beginning of June 2022. The experimental device in Latin Square consisting of four (4) treatments, four (4) lines and four (4) columns were used. Soil and poultry manure samples (fresh and composted) were collected and analyzed. The doses applied were calculated considering the export requirements of amaranth in nitrogen (125 kg/ha) for yields of the order of 20 t/ha. Wood ash was used to balance the contributions of poultry manure (fresh and composted) in phosphate and potash. Data were analyzed using R software using one-way ANOVA and Tukey's test at the 5% probability threshold. 
The main results obtained showed that the poultry manures (fresh and composted) generally led to an improvement in the growth and yield of amaranth, compared to unfertilized plots on which growth and yield were somewhat weak. Moreover, the yield obtained with fresh poultry manure (2,42 ± 0,07 kg/m2) was not significantly different from the yield obtained with the chemical fertilizer (2,68 ± 0,07 kg/m2). The height and diameter obtained with fresh poultry manure (57,17 ± 2,89 cm and 12,33 ± 0,48 mm) were also not different from those obtained with the chemical fertilizer (70,78 ± 2,89 cm and 14,66 ± 0,48 mm). However, the height and yield obtained with composted poultry manure (54,31 ± 2,89 cm and 2,08 ± 0,07 kg/m2) were significantly lower than the height and yield obtained with the chemical fertilizer (70,78 ± 2,89 cm and 2,68± 0,07 kg/m2).

Fertility --- market garden soils --- Haiti --- peri-urban area --- poultry manure --- chemical fertilizer --- wood ash --- Amaranthus cruentus L. --- Fertilité --- sols maraîchers --- Haïti --- zone périurbaine --- fumier de volaille --- fertilisant chimique --- cendre de bois --- Amaranthus cruentus L. --- Sciences du vivant > Agriculture & agronomie

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The focus of this Special Issue was on biomass ash valorization with respect to their potential for various material applications. Most of the publications in this Special Issue focused on the production of biogenic silica with different properties. Additionally, some of the publications considered application of biomass ashes and biochar as a fertilizer, for soil amendment and recovery of ash forming elements such as N and P, as well as the application of biomass feedstocks in biofuel production.Accordingly, ashes produced from the thermochemical conversion of agricultural residues have high potential to be utilized for different material applications. However, local availability, as well as scaling up the process and life-cycle assessment should be considered prior to the utilization of these materials. Furthermore, densification as a mechanical pre-treatment can be crucial to improve the fuel properties, while purification of some of the ash forming elements, such as calcium, potassium, and prosperous should also not be disregarded in future investigations.

rice husk --- rice husk ash --- silica --- engineered particle --- bottom-up process --- silica extraction --- valorization --- agricultural byproduct --- sustainable material --- biomass --- renewable material --- biogenic amorphous silica --- green chemistry --- maize leaves --- sugarcane fiber --- sugarcane leaves --- sugarcane pith --- biorefinery --- multi-objectives RSM --- nano-silica --- de-ashing --- cellulose crystals --- carbon nanotubes --- cellulose --- sugarcane bagasse --- capacitance --- maize straw --- acid leaching --- ash --- pyrolysis --- nitrogen conversion --- wood ash --- fertilizer --- heat and power plants --- heavy metals --- nutrients --- German fertilizer legislation --- alkaline leaching --- continuous process --- bio-based material --- waste --- exhausted grape marc --- biochar --- soil amendment --- biogas --- lifecycle assessment --- greenhouse gas emissions --- mitigation potential --- GHG mitigation costs --- manure --- biomethane --- RED II --- EU ETS --- smoldering --- high moisture content --- specific surface area --- rice straw --- nanosilica --- methylene blue --- zero waste generation --- decolorization --- SDGs --- municipal sewage sludge --- energy recovery --- phosphorus recovery --- techno-economic analysis --- mono-combustion --- co-combustion --- n/a

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The protection of human health and the environment (representing the main reason for waste management), as well as the sustainable use of natural resources, requires chemical, biological, physical and thermal treatment of wastes. This refers to the conditioning (e.g., drying, washing, comminution, rotting, stabilization, neutralization, agglomeration, homogenization), conversion (e.g., incineration, pyrolysis, gasification, dissolution, evaporation), and separation (classification, direct and indirect (i.e., sensor-based) sorting) of all types of wastes to follow the principles of the waste hierarchy (i.e., prevention (not addressed by this issue), preparation for re-use, recycling, other recovery, and disposal). Longstanding challenges include the increase of yield and purity of recyclable fractions and the sustainable removal or destruction of contaminants from the circular economy.This Special Issue on “Advanced Technology of Waste Treatment” of Processes collects high-quality research studies addressing challenges on the broad area of chemical, biological, physical and thermal treatment of wastes.

Technology: general issues --- History of engineering & technology --- selective Cu(II) separation --- sustainable waste treatment --- municipal solid waste --- polymer-assisted ultrafiltration --- real fly ash extracts --- urban mining --- pilot installation --- MSWI fly ash --- properties of fly ash --- acid leaching --- heavy metal recovery --- marine litter --- waste treatment --- plastic waste --- pyrolysis --- gasification --- incineration --- thermogravimetric analysis --- biotechnological upcycling --- plastics recycling --- feedstock recycling --- plastic pyrolysis --- lumped modeling --- kinetic modeling --- ReOil --- risk modelling --- portable batteries --- lithium batteries --- fire hazards --- waste management --- lithium-ion-batteries --- pyrometallurgical recycling --- carbothermal reduction --- wood ash treatment --- chromate reduction --- hot alkaline extraction --- recycling --- refractory --- regenerate --- electrodynamic fragmentation --- innovative process --- process optimization --- enhanced landfill mining --- NEW-MINE --- particle size distribution --- compositional data analysis --- simplex --- isometric log-ratios --- multivariate multiple linear regression --- mechanical processing --- commercial waste --- shredder --- chemical recycling --- wet-mechanical processing --- polyolefins --- circular economy --- WEEE --- recovery of aromatics --- oil upgrading --- dehalogenation --- hydrothermal carbonization --- sewage sludge --- phosphorus recovery --- hydrochar --- process-water --- pH --- mixed waste --- municipal waste --- recovery --- contaminants --- plastics --- digitalisation --- smart waste factory --- selective Cu(II) separation --- sustainable waste treatment --- municipal solid waste --- polymer-assisted ultrafiltration --- real fly ash extracts --- urban mining --- pilot installation --- MSWI fly ash --- properties of fly ash --- acid leaching --- heavy metal recovery --- marine litter --- waste treatment --- plastic waste --- pyrolysis --- gasification --- incineration --- thermogravimetric analysis --- biotechnological upcycling --- plastics recycling --- feedstock recycling --- plastic pyrolysis --- lumped modeling --- kinetic modeling --- ReOil --- risk modelling --- portable batteries --- lithium batteries --- fire hazards --- waste management --- lithium-ion-batteries --- pyrometallurgical recycling --- carbothermal reduction --- wood ash treatment --- chromate reduction --- hot alkaline extraction --- recycling --- refractory --- regenerate --- electrodynamic fragmentation --- innovative process --- process optimization --- enhanced landfill mining --- NEW-MINE --- particle size distribution --- compositional data analysis --- simplex --- isometric log-ratios --- multivariate multiple linear regression --- mechanical processing --- commercial waste --- shredder --- chemical recycling --- wet-mechanical processing --- polyolefins --- circular economy --- WEEE --- recovery of aromatics --- oil upgrading --- dehalogenation --- hydrothermal carbonization --- sewage sludge --- phosphorus recovery --- hydrochar --- process-water --- pH --- mixed waste --- municipal waste --- recovery --- contaminants --- plastics --- digitalisation --- smart waste factory

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The articles featured in this Special Issue cover different aspects of the design, testing, and application of various types of supplementary cementitious materials in concrete. The results of the research, conducted by over 50 international universities and scientific centers, prove the great interest in the SCM topic.

Technology. --- crystalline admixture --- chemical exposure --- sulphuric acid attack --- durability --- Xypex --- fly ash --- substitution strategy --- structural concrete --- steel reinforcement --- limit states --- RC beams in bending --- carbon footprint --- concrete --- carbonation modeling --- calcareous fly ash --- biomass --- wood ash --- fibrocement --- strength --- mortar --- clean coal combustion --- fluidized bed fly ash --- microstructure --- phase composition --- portlandite --- unburned carbon --- slag --- soil stabilization --- embankment --- cement --- lime --- high temperature --- damage --- permeability --- CEMI and CEMIII --- mechanical properties --- alkali-activated concrete --- geopolymer concrete --- flexure --- beams --- fiber-reinforced concrete --- crack spacing --- tension stiffening --- bamboo ash --- supplementary materials --- elevated temperature --- high volume fly ash (HVFA) --- steel reinforcing fiber --- jacketing --- environmental impact --- fibre reinforced --- alkali-activated --- strain hardening --- recycled cementitious supplementary material --- comprehensive concrete recycling --- recycled fine fraction --- rehydration reactivity --- compressive strength --- ground granulated blast furnace slag --- apparent activation energy --- equivalent age --- construction debris --- recycling --- circular economy --- eco-friendly concretes --- fly ash (FA) --- silica fume (SF) --- palm oil fuel ash (POFA) --- rice husk ash (RHA) --- sewage sludge ash (SSA) and sugarcane bagasse ash (SBA) --- mine tailings --- marble dust --- construction and demolition debris (CDD) --- porous feldspar --- activation --- substitute material --- energy saving concrete --- calcined clay --- binder --- supplementary cementitious materials --- cement-based materials --- steatite --- wood particles --- Portland cement --- fire performance --- tensile strength --- micro-silica/silica fume --- steel fiber --- high performance concrete (HPC) --- self-consolidating concrete (SCC) --- flowability --- freeze-thaw cycle --- fire resistance --- bentonite --- clays --- cryogenic condition --- GGBS --- thermal conductivity --- semi-adiabatic test --- crystalline admixture --- chemical exposure --- sulphuric acid attack --- durability --- Xypex --- fly ash --- substitution strategy --- structural concrete --- steel reinforcement --- limit states --- RC beams in bending --- carbon footprint --- concrete --- carbonation modeling --- calcareous fly ash --- biomass --- wood ash --- fibrocement --- strength --- mortar --- clean coal combustion --- fluidized bed fly ash --- microstructure --- phase composition --- portlandite --- unburned carbon --- slag --- soil stabilization --- embankment --- cement --- lime --- high temperature --- damage --- permeability --- CEMI and CEMIII --- mechanical properties --- alkali-activated concrete --- geopolymer concrete --- flexure --- beams --- fiber-reinforced concrete --- crack spacing --- tension stiffening --- bamboo ash --- supplementary materials --- elevated temperature --- high volume fly ash (HVFA) --- steel reinforcing fiber --- jacketing --- environmental impact --- fibre reinforced --- alkali-activated --- strain hardening --- recycled cementitious supplementary material --- comprehensive concrete recycling --- recycled fine fraction --- rehydration reactivity --- compressive strength --- ground granulated blast furnace slag --- apparent activation energy --- equivalent age --- construction debris --- recycling --- circular economy --- eco-friendly concretes --- fly ash (FA) --- silica fume (SF) --- palm oil fuel ash (POFA) --- rice husk ash (RHA) --- sewage sludge ash (SSA) and sugarcane bagasse ash (SBA) --- mine tailings --- marble dust --- construction and demolition debris (CDD) --- porous feldspar --- activation --- substitute material --- energy saving concrete --- calcined clay --- binder --- supplementary cementitious materials --- cement-based materials --- steatite --- wood particles --- Portland cement --- fire performance --- tensile strength --- micro-silica/silica fume --- steel fiber --- high performance concrete (HPC) --- self-consolidating concrete (SCC) --- flowability --- freeze-thaw cycle --- fire resistance --- bentonite --- clays --- cryogenic condition --- GGBS --- thermal conductivity --- semi-adiabatic test

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The articles featured in this Special Issue cover different aspects of the design, testing, and application of various types of supplementary cementitious materials in concrete. The results of the research, conducted by over 50 international universities and scientific centers, prove the great interest in the SCM topic.

crystalline admixture --- chemical exposure --- sulphuric acid attack --- durability --- Xypex --- fly ash --- substitution strategy --- structural concrete --- steel reinforcement --- limit states --- RC beams in bending --- carbon footprint --- concrete --- carbonation modeling --- calcareous fly ash --- biomass --- wood ash --- fibrocement --- strength --- mortar --- clean coal combustion --- fluidized bed fly ash --- microstructure --- phase composition --- portlandite --- unburned carbon --- slag --- soil stabilization --- embankment --- cement --- lime --- high temperature --- damage --- permeability --- CEMI and CEMIII --- mechanical properties --- alkali-activated concrete --- geopolymer concrete --- flexure --- beams --- fiber-reinforced concrete --- crack spacing --- tension stiffening --- bamboo ash --- supplementary materials --- elevated temperature --- high volume fly ash (HVFA) --- steel reinforcing fiber --- jacketing --- environmental impact --- fibre reinforced --- alkali-activated --- strain hardening --- recycled cementitious supplementary material --- comprehensive concrete recycling --- recycled fine fraction --- rehydration reactivity --- compressive strength --- ground granulated blast furnace slag --- apparent activation energy --- equivalent age --- construction debris --- recycling --- circular economy --- eco-friendly concretes --- fly ash (FA) --- silica fume (SF) --- palm oil fuel ash (POFA) --- rice husk ash (RHA) --- sewage sludge ash (SSA) and sugarcane bagasse ash (SBA) --- mine tailings --- marble dust --- construction and demolition debris (CDD) --- porous feldspar --- activation --- substitute material --- energy saving concrete --- calcined clay --- binder --- supplementary cementitious materials --- cement-based materials --- steatite --- wood particles --- Portland cement --- fire performance --- tensile strength --- micro-silica/silica fume --- steel fiber --- high performance concrete (HPC) --- self-consolidating concrete (SCC) --- flowability --- freeze-thaw cycle --- fire resistance --- bentonite --- clays --- cryogenic condition --- GGBS --- thermal conductivity --- semi-adiabatic test --- n/a --- Technology.